summary refs log tree commit diff
path: root/gnu/packages/version-control.scm
blob: 6774dcb0469b738cfa6bef4f52d2c3a9c18c6acb (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
1061
1062
1063
1064
1065
1066
1067
1068
1069
1070
1071
1072
1073
1074
1075
1076
1077
1078
1079
1080
1081
1082
1083
1084
1085
1086
1087
1088
1089
1090
1091
1092
1093
1094
1095
1096
1097
1098
1099
1100
1101
1102
1103
1104
1105
1106
1107
1108
1109
1110
1111
1112
1113
1114
1115
1116
1117
1118
1119
1120
1121
1122
1123
1124
1125
1126
1127
1128
1129
1130
1131
1132
1133
1134
1135
1136
1137
1138
1139
1140
1141
1142
1143
1144
1145
1146
1147
1148
1149
1150
1151
1152
1153
1154
1155
1156
1157
1158
1159
1160
1161
1162
1163
1164
1165
1166
1167
1168
1169
1170
1171
1172
1173
1174
1175
1176
1177
1178
1179
1180
1181
1182
1183
1184
1185
1186
1187
1188
1189
1190
1191
1192
1193
1194
1195
1196
1197
1198
1199
1200
1201
1202
1203
1204
1205
1206
1207
1208
1209
1210
1211
1212
1213
1214
1215
1216
1217
1218
1219
1220
1221
1222
1223
1224
1225
1226
1227
1228
1229
1230
1231
1232
1233
1234
1235
1236
1237
1238
1239
1240
1241
1242
1243
1244
1245
1246
1247
1248
1249
1250
1251
1252
1253
1254
1255
1256
1257
1258
1259
1260
1261
1262
1263
1264
1265
1266
1267
1268
1269
1270
1271
1272
1273
1274
1275
1276
1277
1278
1279
1280
1281
1282
1283
1284
1285
1286
1287
1288
1289
1290
1291
1292
1293
1294
1295
1296
1297
1298
1299
1300
1301
1302
1303
1304
1305
1306
1307
1308
1309
1310
1311
1312
1313
1314
1315
1316
1317
1318
1319
1320
1321
1322
1323
1324
1325
1326
1327
1328
1329
1330
1331
1332
1333
1334
1335
1336
1337
1338
1339
1340
1341
1342
1343
1344
1345
1346
1347
1348
1349
1350
1351
1352
1353
1354
1355
1356
1357
1358
1359
1360
1361
1362
1363
1364
1365
1366
1367
1368
1369
1370
1371
1372
1373
1374
1375
1376
1377
1378
1379
1380
1381
1382
1383
1384
1385
1386
1387
1388
1389
1390
1391
1392
1393
1394
1395
1396
1397
1398
1399
1400
1401
1402
1403
1404
1405
1406
1407
1408
1409
1410
1411
1412
1413
1414
1415
1416
1417
1418
1419
1420
1421
1422
1423
1424
1425
1426
1427
1428
1429
1430
1431
1432
1433
1434
1435
1436
1437
1438
1439
1440
1441
1442
1443
1444
1445
1446
1447
1448
1449
1450
1451
1452
1453
1454
1455
1456
1457
1458
1459
1460
1461
1462
1463
1464
1465
1466
1467
1468
1469
1470
1471
1472
1473
1474
1475
1476
1477
1478
1479
1480
1481
1482
1483
1484
1485
1486
1487
1488
1489
1490
1491
1492
1493
1494
1495
1496
1497
1498
1499
1500
1501
1502
1503
1504
1505
1506
1507
1508
1509
1510
1511
1512
1513
1514
1515
1516
1517
1518
1519
1520
1521
1522
1523
1524
1525
1526
1527
1528
1529
1530
1531
1532
1533
1534
1535
1536
1537
1538
1539
1540
1541
1542
1543
1544
1545
1546
1547
1548
1549
1550
1551
1552
1553
1554
1555
1556
1557
1558
1559
1560
1561
1562
1563
1564
1565
1566
1567
1568
1569
1570
1571
1572
1573
1574
1575
1576
1577
1578
1579
1580
1581
1582
1583
1584
1585
1586
1587
1588
1589
1590
1591
1592
1593
1594
1595
1596
1597
1598
1599
1600
1601
1602
1603
1604
1605
1606
1607
1608
1609
1610
1611
1612
1613
1614
1615
1616
1617
1618
1619
1620
1621
1622
1623
1624
1625
1626
1627
1628
1629
1630
1631
1632
1633
1634
1635
1636
1637
1638
1639
1640
1641
1642
1643
1644
1645
1646
1647
1648
1649
1650
1651
1652
1653
1654
1655
1656
1657
1658
1659
1660
1661
1662
1663
1664
1665
1666
1667
1668
1669
1670
1671
1672
1673
1674
1675
1676
1677
1678
1679
1680
1681
1682
1683
1684
1685
1686
1687
1688
1689
1690
1691
1692
1693
1694
1695
1696
1697
1698
1699
1700
1701
1702
1703
1704
1705
1706
1707
1708
1709
1710
1711
1712
1713
1714
1715
1716
1717
1718
1719
1720
1721
1722
1723
1724
1725
1726
1727
1728
1729
1730
1731
1732
1733
1734
1735
1736
1737
1738
1739
1740
1741
1742
1743
1744
1745
1746
1747
1748
1749
1750
1751
1752
1753
1754
1755
1756
1757
1758
1759
1760
1761
1762
1763
1764
1765
1766
1767
1768
1769
1770
1771
1772
1773
1774
1775
1776
1777
1778
1779
1780
1781
1782
1783
1784
1785
1786
1787
1788
1789
1790
1791
1792
1793
1794
1795
1796
1797
1798
1799
1800
1801
1802
1803
1804
1805
1806
1807
1808
1809
1810
1811
1812
1813
1814
1815
1816
1817
1818
1819
1820
1821
1822
1823
1824
1825
1826
1827
1828
1829
1830
1831
1832
1833
1834
1835
1836
1837
1838
1839
1840
1841
1842
1843
1844
1845
1846
1847
1848
1849
1850
1851
1852
1853
1854
1855
1856
1857
1858
1859
1860
1861
1862
1863
1864
1865
1866
1867
1868
1869
1870
1871
1872
1873
1874
1875
1876
1877
1878
1879
1880
1881
1882
1883
1884
1885
1886
1887
1888
1889
1890
1891
1892
1893
1894
1895
1896
1897
1898
1899
1900
1901
1902
1903
1904
1905
1906
1907
1908
1909
1910
1911
1912
1913
1914
1915
1916
1917
1918
1919
1920
1921
1922
1923
1924
1925
1926
1927
1928
1929
1930
1931
1932
1933
1934
1935
1936
1937
1938
1939
1940
1941
1942
1943
1944
1945
1946
1947
1948
1949
1950
1951
1952
1953
1954
1955
1956
1957
1958
1959
1960
1961
1962
1963
1964
1965
1966
1967
1968
1969
1970
1971
1972
1973
1974
1975
1976
1977
1978
1979
1980
1981
1982
1983
1984
1985
1986
1987
1988
1989
1990
1991
1992
1993
1994
1995
1996
1997
1998
1999
2000
2001
2002
2003
2004
2005
2006
2007
2008
2009
2010
2011
2012
2013
2014
2015
2016
2017
2018
2019
2020
2021
2022
2023
2024
2025
2026
2027
2028
2029
2030
2031
2032
2033
2034
2035
2036
2037
2038
2039
2040
2041
2042
2043
2044
2045
2046
2047
2048
2049
2050
2051
2052
2053
2054
2055
2056
2057
2058
2059
2060
2061
2062
2063
2064
2065
2066
2067
2068
2069
2070
2071
2072
2073
2074
2075
2076
2077
2078
2079
2080
2081
2082
2083
2084
2085
2086
2087
2088
2089
2090
2091
2092
2093
2094
2095
2096
2097
2098
2099
2100
2101
2102
2103
2104
2105
2106
2107
2108
2109
2110
2111
2112
2113
2114
2115
2116
2117
2118
2119
2120
2121
2122
2123
2124
2125
2126
2127
2128
2129
2130
2131
2132
2133
2134
2135
2136
2137
2138
2139
2140
2141
2142
2143
2144
2145
2146
2147
2148
2149
2150
2151
2152
2153
2154
2155
2156
2157
2158
2159
2160
2161
2162
2163
2164
2165
2166
2167
2168
2169
2170
2171
2172
2173
2174
2175
2176
2177
2178
2179
2180
2181
2182
2183
2184
2185
2186
2187
2188
2189
2190
2191
2192
2193
2194
2195
2196
2197
2198
2199
2200
2201
2202
2203
2204
2205
2206
2207
2208
2209
2210
2211
2212
2213
2214
2215
2216
2217
2218
2219
2220
2221
2222
2223
2224
2225
2226
2227
2228
2229
2230
2231
2232
2233
2234
2235
2236
2237
2238
2239
2240
2241
2242
2243
2244
2245
2246
2247
2248
2249
2250
2251
2252
2253
2254
2255
2256
2257
2258
2259
2260
2261
2262
2263
2264
2265
2266
2267
2268
2269
2270
2271
2272
2273
2274
2275
2276
2277
2278
2279
2280
2281
2282
2283
2284
2285
2286
2287
2288
2289
2290
2291
2292
2293
2294
2295
2296
2297
2298
2299
2300
2301
2302
2303
2304
2305
2306
2307
2308
2309
2310
2311
2312
2313
2314
2315
2316
2317
2318
2319
2320
2321
2322
2323
2324
2325
2326
2327
2328
2329
2330
2331
2332
2333
2334
2335
2336
2337
2338
2339
2340
2341
2342
2343
2344
2345
2346
2347
2348
2349
2350
2351
2352
2353
2354
2355
2356
2357
2358
2359
2360
2361
2362
2363
2364
2365
2366
2367
2368
2369
2370
2371
2372
2373
2374
2375
2376
2377
2378
2379
2380
2381
2382
2383
2384
2385
2386
2387
2388
2389
2390
2391
2392
2393
2394
2395
2396
2397
2398
2399
2400
2401
2402
2403
2404
2405
2406
2407
2408
2409
2410
2411
2412
2413
2414
2415
2416
2417
2418
2419
2420
2421
2422
2423
2424
2425
2426
2427
2428
2429
2430
2431
2432
2433
2434
2435
2436
2437
2438
2439
2440
2441
2442
2443
2444
2445
2446
2447
2448
2449
2450
2451
2452
2453
2454
2455
2456
2457
2458
2459
2460
2461
2462
2463
2464
2465
2466
2467
2468
2469
2470
2471
2472
2473
2474
2475
2476
2477
2478
2479
2480
2481
2482
2483
2484
2485
2486
2487
2488
2489
2490
2491
2492
2493
2494
2495
2496
2497
2498
2499
2500
2501
2502
2503
2504
2505
2506
2507
2508
2509
2510
2511
2512
2513
2514
2515
2516
2517
2518
2519
2520
2521
2522
2523
2524
2525
2526
2527
2528
2529
2530
2531
2532
2533
2534
2535
2536
2537
2538
2539
2540
2541
2542
2543
2544
2545
2546
2547
2548
2549
2550
2551
2552
2553
2554
2555
2556
2557
2558
2559
2560
2561
2562
2563
2564
2565
2566
2567
2568
2569
2570
2571
2572
2573
2574
2575
2576
2577
2578
2579
2580
2581
2582
2583
2584
2585
2586
2587
2588
2589
2590
2591
2592
2593
2594
2595
2596
2597
2598
2599
2600
2601
2602
2603
2604
2605
2606
2607
2608
2609
2610
2611
2612
2613
2614
2615
2616
2617
2618
2619
2620
2621
2622
2623
2624
2625
2626
2627
2628
2629
2630
2631
2632
2633
2634
2635
2636
2637
2638
2639
2640
2641
2642
2643
2644
2645
2646
2647
2648
2649
2650
2651
2652
2653
2654
2655
2656
2657
2658
2659
2660
2661
2662
2663
2664
2665
2666
2667
2668
2669
2670
2671
2672
2673
2674
2675
2676
2677
2678
2679
2680
2681
2682
2683
2684
2685
2686
2687
2688
2689
2690
2691
2692
2693
2694
2695
2696
2697
2698
2699
2700
2701
2702
2703
2704
2705
2706
2707
2708
2709
2710
2711
2712
2713
2714
2715
2716
2717
2718
2719
2720
2721
2722
2723
2724
2725
2726
2727
2728
2729
2730
2731
2732
2733
2734
2735
2736
2737
2738
2739
2740
2741
2742
2743
2744
2745
2746
2747
2748
2749
2750
2751
2752
2753
2754
2755
2756
2757
2758
2759
2760
2761
2762
2763
2764
2765
2766
2767
2768
2769
2770
2771
2772
2773
2774
2775
2776
2777
2778
2779
2780
2781
2782
2783
2784
2785
2786
2787
2788
2789
2790
2791
2792
2793
2794
2795
2796
2797
2798
2799
2800
2801
2802
2803
2804
2805
2806
2807
2808
2809
2810
2811
2812
2813
2814
2815
2816
2817
2818
2819
2820
2821
2822
2823
2824
2825
2826
2827
2828
2829
2830
2831
2832
2833
2834
2835
2836
2837
2838
2839
2840
2841
2842
2843
2844
2845
2846
2847
2848
2849
2850
2851
2852
2853
2854
2855
2856
2857
2858
2859
2860
2861
2862
2863
2864
2865
2866
2867
2868
2869
2870
2871
2872
2873
2874
2875
2876
2877
2878
2879
2880
2881
2882
2883
2884
2885
2886
2887
2888
2889
2890
2891
2892
2893
2894
2895
2896
2897
2898
2899
2900
2901
2902
2903
2904
2905
2906
2907
2908
2909
2910
2911
2912
2913
2914
2915
2916
2917
2918
2919
2920
2921
2922
2923
2924
2925
2926
2927
2928
2929
2930
2931
2932
2933
2934
2935
2936
2937
2938
2939
2940
2941
2942
2943
2944
2945
2946
2947
2948
2949
2950
2951
2952
2953
2954
2955
2956
2957
2958
2959
2960
2961
2962
2963
2964
2965
2966
2967
2968
2969
2970
2971
2972
2973
2974
2975
2976
2977
2978
2979
2980
2981
2982
2983
2984
2985
2986
2987
2988
2989
2990
2991
2992
2993
2994
2995
2996
2997
2998
2999
3000
3001
3002
3003
3004
3005
3006
3007
3008
3009
3010
3011
3012
3013
3014
3015
3016
3017
3018
3019
3020
3021
3022
3023
3024
3025
3026
3027
3028
3029
3030
3031
3032
3033
3034
3035
3036
3037
3038
3039
3040
3041
3042
3043
3044
3045
3046
3047
3048
3049
3050
3051
3052
3053
3054
3055
3056
3057
3058
3059
3060
3061
3062
3063
3064
3065
3066
3067
3068
3069
3070
3071
3072
3073
3074
3075
3076
3077
3078
3079
3080
3081
3082
3083
3084
3085
3086
3087
3088
3089
3090
3091
3092
3093
3094
3095
3096
3097
3098
3099
3100
3101
3102
3103
3104
3105
3106
3107
3108
3109
3110
3111
3112
3113
3114
3115
3116
3117
3118
3119
3120
3121
3122
3123
3124
3125
3126
3127
3128
3129
3130
3131
3132
3133
3134
3135
3136
3137
3138
3139
3140
3141
3142
3143
3144
3145
3146
3147
3148
3149
3150
3151
3152
3153
3154
3155
3156
3157
3158
3159
3160
3161
3162
3163
3164
3165
3166
3167
3168
3169
3170
3171
3172
3173
3174
3175
3176
3177
3178
3179
3180
3181
3182
3183
3184
3185
3186
3187
3188
3189
3190
3191
3192
3193
3194
3195
3196
3197
3198
3199
3200
3201
3202
3203
3204
3205
3206
3207
3208
3209
3210
3211
3212
3213
3214
3215
3216
3217
3218
3219
3220
3221
3222
3223
3224
3225
3226
3227
3228
3229
3230
3231
3232
3233
3234
3235
3236
3237
3238
3239
3240
3241
3242
3243
3244
3245
3246
3247
3248
3249
3250
3251
3252
3253
3254
3255
3256
3257
3258
3259
3260
3261
3262
3263
3264
3265
3266
3267
3268
3269
3270
3271
3272
3273
3274
3275
3276
3277
3278
3279
3280
3281
3282
3283
3284
3285
3286
3287
3288
3289
3290
3291
3292
3293
3294
3295
3296
3297
3298
3299
3300
3301
3302
3303
3304
3305
3306
3307
3308
3309
3310
3311
3312
3313
3314
3315
3316
3317
3318
3319
3320
3321
3322
3323
3324
3325
3326
3327
3328
3329
3330
3331
3332
3333
3334
3335
3336
3337
3338
3339
3340
3341
3342
3343
3344
3345
3346
3347
3348
3349
3350
3351
3352
3353
3354
3355
3356
3357
3358
3359
3360
3361
3362
3363
3364
3365
3366
3367
3368
3369
3370
3371
3372
3373
3374
3375
3376
3377
3378
3379
3380
3381
3382
3383
3384
3385
3386
3387
3388
3389
3390
3391
3392
3393
3394
3395
3396
3397
3398
3399
3400
3401
3402
3403
3404
3405
3406
3407
3408
3409
3410
3411
3412
3413
3414
3415
3416
3417
3418
3419
3420
3421
3422
3423
3424
3425
3426
3427
3428
3429
3430
3431
3432
3433
3434
3435
3436
3437
3438
3439
3440
3441
3442
3443
3444
3445
3446
3447
3448
3449
3450
3451
3452
3453
3454
3455
3456
3457
3458
3459
3460
3461
3462
3463
3464
3465
3466
3467
3468
3469
3470
3471
3472
3473
3474
3475
3476
3477
3478
3479
3480
3481
3482
3483
3484
3485
3486
3487
3488
3489
3490
3491
3492
3493
3494
3495
3496
3497
3498
3499
3500
3501
3502
3503
3504
3505
3506
3507
3508
3509
3510
3511
3512
3513
3514
3515
3516
3517
3518
3519
3520
3521
3522
3523
3524
3525
3526
3527
3528
3529
3530
3531
3532
3533
3534
3535
3536
3537
3538
3539
3540
3541
3542
3543
3544
3545
3546
3547
3548
3549
3550
3551
3552
3553
3554
3555
3556
3557
3558
3559
3560
3561
3562
3563
3564
3565
3566
3567
3568
3569
3570
3571
3572
3573
3574
3575
3576
3577
3578
3579
3580
3581
3582
3583
3584
3585
3586
3587
3588
3589
3590
3591
3592
3593
3594
3595
3596
3597
3598
3599
3600
3601
3602
3603
3604
3605
3606
3607
3608
3609
3610
3611
3612
3613
3614
3615
3616
3617
3618
3619
;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2013 Nikita Karetnikov <nikita@karetnikov.org>
;;; Copyright © 2013 Cyril Roelandt <tipecaml@gmail.com>
;;; Copyright © 2013-2022 Ludovic Courtès <ludo@gnu.org>
;;; Copyright © 2013, 2014 Andreas Enge <andreas@enge.fr>
;;; Copyright © 2015, 2016 Mathieu Lirzin <mthl@gnu.org>
;;; Copyright © 2014, 2015, 2016 Mark H Weaver <mhw@netris.org>
;;; Copyright © 2014, 2016, 2019, 2021 Eric Bavier <bavier@posteo.net>
;;; Copyright © 2015-2023 Flashner <efraim@flashner.co.il>
;;; Copyright © 2015, 2018, 2020, 2021, 2022 Kyle Meyer <kyle@kyleam.com>
;;; Copyright © 2015, 2017, 2018, 2020 Ricardo Wurmus <rekado@elephly.net>
;;; Copyright © 2016, 2017 Leo Famulari <leo@famulari.name>
;;; Copyright © 2016, 2017, 2018 Nikita <nikita@n0.is>
;;; Copyright © 2017–2022 Tobias Geerinckx-Rice <me@tobias.gr>
;;; Copyright © 2017 Vasile Dumitrascu <va511e@yahoo.com>
;;; Copyright © 2017 Clément Lassieur <clement@lassieur.org>
;;; Copyright © 2017, 2020 EuAndreh <eu@euandre.org>
;;; Copyright © 2017, 2018, 2020, 2022 Marius Bakke <marius@gnu.org>
;;; Copyright © 2017 Stefan Reichör <stefan@xsteve.at>
;;; Copyright © 2017, 2020 Oleg Pykhalov <go.wigust@gmail.com>
;;; Copyright © 2018 Sou Bunnbu <iyzsong@member.fsf.org>
;;; Copyright © 2018 Christopher Baines <mail@cbaines.net>
;;; Copyright © 2018 Timothy Sample <samplet@ngyro.com>
;;; Copyright © 2018 Arun Isaac <arunisaac@systemreboot.net>
;;; Copyright © 2019 Jovany Leandro G.C <bit4bit@riseup.net>
;;; Copyright © 2019 Kei Kebreau <kkebreau@posteo.net>
;;; Copyright © 2019, 2020 Alex Griffin <a@ajgrf.com>
;;; Copyright © 2020 Roel Janssen <roel@gnu.org>
;;; Copyright © 2020, 2021 Brice Waegeneire <brice@waegenei.re>
;;; Copyright © 2020 John D. Boy <jboy@bius.moe>
;;; Copyright © 2020 Jan (janneke) Nieuwenhuizen <janneke@gnu.org>
;;; Copyright © 2020, 2021, 2022, 2023 Vinicius Monego <monego@posteo.net>
;;; Copyright © 2020 Tanguy Le Carrour <tanguy@bioneland.org>
;;; Copyright © 2020, 2021, 2022 Michael Rohleder <mike@rohleder.de>
;;; Copyright © 2021 Greg Hogan <code@greghogan.com>
;;; Copyright © 2021, 2022, 2023 Maxim Cournoyer <maxim.cournoyer@gmail.com>
;;; Copyright © 2021 Chris Marusich <cmmarusich@gmail.com>
;;; Copyright © 2021 Léo Le Bouter <lle-bout@zaclys.net>
;;; Copyright © 2021 LibreMiami <packaging-guix@libremiami.org>
;;; Copyright © 2021 Xinglu Chen <public@yoctocell.xyz>
;;; Copyright © 2021 François J. <francois-oss@avalenn.eu>
;;; Copyright © 2021 Julien Lepiller <julien@lepiller.eu>
;;; Copyright © 2021 Guillaume Le Vaillant <glv@posteo.net>
;;; Copyright © 2021 jgart <jgart@dismail.de>
;;; Copyright © 2021 Foo Chuan Wei <chuanwei.foo@hotmail.com>
;;; Copyright © 2022 Jai Vetrivelan <jaivetrivelan@gmail.com>
;;; Copyright © 2022 Maxime Devos <maximedevos@telenet.be>
;;; Copyright © 2022 Dhruvin Gandhi <contact@dhruvin.dev>
;;; Copyright © 2015, 2022 David Thompson <davet@gnu.org>
;;; Copyright © 2023 Nicolas Graves <ngraves@ngraves.fr>
;;;
;;; This file is part of GNU Guix.
;;;
;;; GNU Guix is free software; you can redistribute it and/or modify it
;;; under the terms of the GNU General Public License as published by
;;; the Free Software Foundation; either version 3 of the License, or (at
;;; your option) any later version.
;;;
;;; GNU Guix is distributed in the hope that it will be useful, but
;;; WITHOUT ANY WARRANTY; without even the implied warranty of
;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
;;; GNU General Public License for more details.
;;;
;;; You should have received a copy of the GNU General Public License
;;; along with GNU Guix.  If not, see <http://www.gnu.org/licenses/>.

(define-module (gnu packages version-control)
  #:use-module ((guix licenses) #:prefix license:)
  #:use-module (guix utils)
  #:use-module (guix packages)
  #:use-module (guix deprecation)
  #:use-module (guix gexp)
  #:use-module (guix download)
  #:use-module (guix git-download)
  #:use-module (guix hg-download)
  #:use-module (guix build-system cmake)
  #:use-module (guix build-system copy)
  #:use-module (guix build-system gnu)
  #:use-module (guix build-system go)
  #:use-module (guix build-system perl)
  #:use-module (guix build-system python)
  #:use-module (guix build-system trivial)
  #:use-module (gnu packages apr)
  #:use-module (gnu packages autotools)
  #:use-module (gnu packages documentation)
  #:use-module (gnu packages base)
  #:use-module (gnu packages bash)
  #:use-module (gnu packages bison)
  #:use-module (gnu packages boost)
  #:use-module (gnu packages check)
  #:use-module (gnu packages cook)
  #:use-module (gnu packages curl)
  #:use-module (gnu packages docbook)
  #:use-module (gnu packages ed)
  #:use-module (gnu packages file)
  #:use-module (gnu packages flex)
  #:use-module (gnu packages freedesktop)
  #:use-module (gnu packages gettext)
  #:use-module (gnu packages gl)
  #:use-module (gnu packages glib)
  #:use-module (gnu packages gnome)
  #:use-module (gnu packages gnupg)
  #:use-module (gnu packages golang)
  #:use-module (gnu packages groff)
  #:use-module (gnu packages guile)
  #:use-module (gnu packages guile-xyz)
  #:use-module (gnu packages image)
  #:use-module (gnu packages linux)
  #:use-module (gnu packages mail)
  #:use-module (gnu packages man)
  #:use-module (gnu packages maths)
  #:use-module (gnu packages nano)
  #:use-module (gnu packages ncurses)
  #:use-module (gnu packages ssh)
  #:use-module (gnu packages web)
  #:use-module (gnu packages openstack)
  #:use-module (gnu packages pcre)
  #:use-module (gnu packages perl)
  #:use-module (gnu packages perl-check)
  #:use-module (gnu packages pkg-config)
  #:use-module (gnu packages python)
  #:use-module (gnu packages python-build)
  #:use-module (gnu packages python-check)
  #:use-module (gnu packages python-crypto)
  #:use-module (gnu packages python-web)
  #:use-module (gnu packages python-xyz)
  #:use-module (gnu packages readline)
  #:use-module (gnu packages rsync)
  #:use-module (gnu packages ruby)
  #:use-module (gnu packages sqlite)
  #:use-module (gnu packages texinfo)
  #:use-module (gnu packages admin)
  #:use-module (gnu packages xml)
  #:use-module (gnu packages emacs)
  #:use-module (gnu packages compression)
  #:use-module (gnu packages sdl)
  #:use-module (gnu packages swig)
  #:use-module (gnu packages sync)
  #:use-module (gnu packages tcl)
  #:use-module (gnu packages textutils)
  #:use-module (gnu packages time)
  #:use-module (gnu packages tls)
  #:use-module (gnu packages)
  #:use-module (ice-9 match)
  #:use-module (srfi srfi-1)
  #:export (make-gitolite))

(define-public breezy
  (package
    (name "breezy")
    (version "3.2.2")
    (source
     (origin
       (method url-fetch)
       (uri (string-append "https://launchpad.net/brz/"
                           (version-major+minor version) "/" version
                           "/+download/breezy-" version ".tar.gz"))
       (modules '((guix build utils)))
       ;; Delete pre-generated Cython C files.
       (snippet '(for-each delete-file (find-files "." "\\pyx.c$")))
       (sha256
        (base32
         "1md4b6ajawf5h50fqizmjj0g833ihc674dh7fn0mvl4d412nwyhq"))
       (patches (search-patches "breezy-fix-gio.patch"))))
    (build-system python-build-system)
    (arguments
     (list
      #:tests? #f                       ;FIXME: the test suite hangs
      #:phases
      #~(modify-phases %standard-phases
          (add-after 'unpack 'patch-test-shebangs
            (lambda _
              (substitute* (append (find-files "breezy/bzr/tests")
                                   (find-files "breezy/tests"))
                (("#!/bin/sh")
                 (format #f "#!~a" (which "sh"))))))
          (replace 'check
            (lambda* (#:key tests? #:allow-other-keys)
              (when tests?
                ;; The test_read_bundle tests fails with "TypeError: a
                ;; bytes-like object is required, not '_ResultTuple'" (see:
                ;; https://bugs.launchpad.net/brz/+bug/1968415/comments/4).
                (substitute* "breezy/bzr/tests/__init__.py"
                  (("'test_read_bundle'," all)
                   (string-append "# " all)))
                (setenv "BZR_EDITOR" "nano")
                (setenv "HOME" "/tmp")
                (invoke "testr" "init")
                (invoke "testr" "run")))))))
    (native-inputs
     (list nano                         ;for tests
           python-cython
           python-docutils
           python-subunit
           python-testrepository))
    (inputs
     (list gettext-minimal
           python-configobj
           python-dulwich
           python-fastbencode
           python-fastimport
           python-launchpadlib
           python-paramiko
           python-patiencediff
           python-pycryptodome
           python-pygobject
           python-pygpgme))
    (home-page "https://www.breezy-vcs.org/")
    (synopsis "Decentralized revision control system")
    (description
     "Breezy (@command{brz}) is a decentralized revision control system.  By
default, Breezy provides support for both the
@uref{https://bazaar.canonical.com/, Bazaar} and @uref{https://www.git-scm.com,
Git} file formats.  Breezy is backwabrds compatible with Bazaar's disk format
and protocols.  One of the key differences with Bazaar is that Breezy runs on
Python 3.3 and later, rather than on Python 2.")
    (license license:gpl2+)))

(define-public bazaar
  (deprecated-package "bazaar" breezy))

(define git-cross-configure-flags
  '("ac_cv_fread_reads_directories=yes"
    "ac_cv_snprintf_returns_bogus=no"
    "ac_cv_iconv_omits_bom=no"))

(define-public git
  (package
   (name "git")
   (version "2.39.2")
   (source (origin
            (method url-fetch)
            (uri (string-append "mirror://kernel.org/software/scm/git/git-"
                                version ".tar.xz"))
            (sha256
             (base32
              "1mpjvhyw8mv2q941xny4d0gw3mb6b4bqaqbh73jd8b1v6zqpaps7"))
            (patches (search-patches "git-header-cmd.patch"))))
   (build-system gnu-build-system)
   (native-inputs
    `(("native-perl" ,perl)
      ;; Add bash-minimal explicitly to ensure it comes before bash-for-tests,
      ;; see <https://bugs.gnu.org/39513>.
      ("bash" ,bash-minimal)
      ("bash-for-tests" ,bash)
      ("gettext" ,gettext-minimal)
      ;; To build the man pages from the git sources, we would need a dependency
      ;; on a full XML tool chain, and building it actually takes ages.  So we
      ;; use this lazy approach and use released tarball.
      ("git-manpages"
       ,(origin
          (method url-fetch)
          (uri (string-append
                "mirror://kernel.org/software/scm/git/git-manpages-"
                version ".tar.xz"))
          (sha256
           (base32
            "09cva868qb4705s884dzvbwkm78jlw4q8m6xj7nd7cwxy2i2ff8b"))))
      ;; For subtree documentation.
      ("asciidoc" ,asciidoc)
      ("docbook2x" ,docbook2x)
      ("docbook-xsl" ,docbook-xsl)
      ("libxslt" ,libxslt)
      ("pkg-config" ,pkg-config)
      ("texinfo" ,texinfo)
      ("xmlto" ,xmlto)))
   (inputs
    `(("curl" ,curl)
      ("expat" ,expat)
      ("openssl" ,openssl)
      ("perl" ,perl)
      ("python" ,python) ; for git-p4
      ("zlib" ,zlib)

       ;; For PCRE support in git grep (USE_LIBPCRE2).
       ("pcre" ,pcre2)

       ;; For 'gitweb.cgi'.
       ("perl-cgi" ,perl-cgi)

       ;; For 'git-svn'.
       ("subversion" ,subversion)
       ("perl-term-readkey" ,perl-term-readkey)

       ;; For 'git-send-email'.
       ("perl-authen-sasl" ,perl-authen-sasl)
       ("perl-net-smtp-ssl" ,perl-net-smtp-ssl)
       ("perl-io-socket-ssl" ,perl-io-socket-ssl)

       ;; For 'git gui', 'gitk', and 'git citool'.
       ("tcl" ,tcl)
       ("tk" ,tk)

       ;; For 'git-credential-libsecret'
       ("glib" ,glib)
       ("libsecret" ,libsecret)))
    (outputs '("out"                    ; the core
               "send-email"             ; for git-send-email
               "svn"                    ; git-svn
               "credential-netrc"       ; git-credential-netrc
               "credential-libsecret"   ; git-credential-libsecret
               "subtree"                ; git-subtree
               "gui"))                  ; gitk, git gui
    (arguments
     `(#:make-flags `("V=1"             ;more verbose compilation

                      ,(string-append "SHELL_PATH="
                                      (assoc-ref %build-inputs "bash")
                                      "/bin/sh")

                      ;; Tests require a bash with completion support.
                      ,(string-append "TEST_SHELL_PATH="
                                      (assoc-ref %build-inputs "bash-for-tests")
                                      "/bin/bash")

                      "USE_LIBPCRE2=yes"

                      ;; By default 'make install' creates hard links for
                      ;; things in 'libexec/git-core', which leads to huge
                      ;; nars; see <https://bugs.gnu.org/21949>.
                      "NO_INSTALL_HARDLINKS=indeed")

       ;; Make sure the full bash does not end up in the final closure.
       #:disallowed-references (,bash)

       #:test-target "test"

       ;; The explicit --with-tcltk forces the build system to hardcode the
       ;; absolute file name to 'wish'.
       #:configure-flags (list (string-append "--with-tcltk="
                                              (assoc-ref %build-inputs "tk")
                                              "/bin/wish8.6") ; XXX
                               ,@(if (%current-target-system)
                                     git-cross-configure-flags
                                     '()))

       #:modules ((srfi srfi-1)
                  (srfi srfi-26)
                  ((guix build gnu-build-system) #:prefix gnu:)
                  ,@%gnu-build-system-modules)
       #:phases
       (modify-phases %standard-phases
         ,@(if (%current-target-system)
               ;; The git build system assumes build == host
               `((add-after 'unpack  'use-host-uname_S
                   (lambda _
                     (substitute* "config.mak.uname"
                       (("uname_S := .*" all)
                        (if (equal? ,(%current-target-system) "i586-pc-gnu")
                            "uname_S := GNU\n"
                            all))))))
               ;; We do not have bash-for-tests when cross-compiling.
               `((add-after 'unpack 'modify-PATH
                   (lambda* (#:key inputs #:allow-other-keys)
                     (let ((path (string-split (getenv "PATH") #\:))
                           (bash-full (assoc-ref inputs "bash-for-tests")))
                       ;; Drop the test bash from PATH so that (which "sh") and
                       ;; similar does the right thing.
                       (setenv "PATH" (string-join
                                       (remove (cut string-prefix? bash-full <>) path)
                                       ":")))))))
         ;; Add cross curl-config script to PATH when cross-compiling.
         ,@(if (%current-target-system)
               '((add-before 'configure 'add-cross-curl-config
                   (lambda* (#:key inputs #:allow-other-keys)
                     (setenv "PATH"
                             (string-append (assoc-ref inputs "curl") "/bin:"
                                            (getenv "PATH"))))))
               '())
         (add-after 'configure 'patch-makefiles
           (lambda _
             (substitute* "Makefile"
               (("/usr/bin/perl") (which "perl"))
               (("/usr/bin/python") (which "python3")))))
         (add-after 'configure 'add-PM.stamp
           (lambda _
             ;; Add the "PM.stamp" to avoid "no rule to make target".
             (call-with-output-file "perl/PM.stamp" (const #t))))
         (add-after 'build 'build-subtree
           (lambda* (#:key inputs #:allow-other-keys)
             (with-directory-excursion "contrib/subtree"
               (substitute* "Makefile"
                 ;; Apparently `xmlto' does not bother to looks up the stylesheets
                 ;; specified in the XML, unlike the above substitution.  Instead it
                 ;; uses a hard-coded URL.  Work around it here, but if this is
                 ;; common perhaps we should hardcode this path in xmlto itself.
                 (("\\$\\(XMLTO\\) -m \\$\\(MANPAGE_XSL\\)")
                  (string-append "$(XMLTO) -x "
                                 (string-append (assoc-ref inputs "docbook-xsl")
                                                "/xml/xsl/docbook-xsl-"
                                                ,(package-version docbook-xsl))
                                 "/manpages/docbook.xsl -m $(MANPAGE_XSL)")))
               (invoke "make")
               (invoke "make" "install")
               (invoke "make" "install-doc")
               (substitute* "git-subtree"
                 (("/bin/sh") (which "sh"))))))
         (add-before 'check 'patch-tests
           (lambda _
             (let ((store-directory (%store-directory)))
               ;; These files contain some funny bytes that Guile is unable
               ;; to decode for shebang patching. Just delete them.
               (for-each delete-file '("t/t4201-shortlog.sh"
                                       "t/t7813-grep-icase-iso.sh"))
               ;; Many tests contain inline shell scripts (hooks etc).
               (substitute* (find-files "t" "\\.sh$")
                 (("#!/bin/sh") (string-append "#!" (which "sh"))))
               ;; Un-do shebang patching here to prevent checksum mismatch.
               (substitute* '("t/t4034/perl/pre" "t/t4034/perl/post")
                 (("^#!.*/bin/perl") "#!/usr/bin/perl"))
               (substitute* "t/t5003-archive-zip.sh"
                 (("cp /bin/sh") (string-append "cp " (which "sh"))))
               (substitute* "t/t6030-bisect-porcelain.sh"
                 (("\"/bin/sh\"") (string-append "\"" (which "sh") "\"")))
               ;; FIXME: This test runs `git commit` with a bogus EDITOR
               ;; and empty commit message, but does not fail the way it's
               ;; expected to. The test passes when invoked interactively.
               (substitute* "t/t7508-status.sh"
                 (("\tcommit_template_commented") "\ttrue"))
               ;; More checksum mismatches due to odd shebangs.
               (substitute* "t/t9100-git-svn-basic.sh"
                 (((string-append "\"#!" store-directory ".*/bin/sh")) "\"#!/bin/sh") )
               (substitute* "t/t9300-fast-import.sh"
                 (((string-append "\t#!" store-directory ".*/bin/sh")) "\t#!/bin/sh")
                 (((string-append "'#!" store-directory ".*/bin/sh")) "'#!/bin/sh"))
               ;; FIXME: Some hooks fail with "basename: command not found".
               ;; See 't/trash directory.t9164.../svn-hook.log'.
               (delete-file "t/t9164-git-svn-dcommit-concurrent.sh")

               ;; XXX: These tests fail intermittently for unknown reasons:
               ;; <https://bugs.gnu.org/29546>.
               (for-each delete-file
                         '("t/t9128-git-svn-cmd-branch.sh"
                           "t/t9167-git-svn-cmd-branch-subproject.sh"
                           "t/t9141-git-svn-multiple-branches.sh")))))
         (add-after 'install 'install-info-manual
           (lambda* (#:key parallel-build? #:allow-other-keys)
             (define job-count (if parallel-build?
                                   (number->string (parallel-job-count))
                                   "1"))
             (invoke "make" "-C" "Documentation" "install-info"
                     "-j" job-count
                     ;; The Makefile refer to 'docbook2x-texi', but our binary
                     ;; is named 'docbook2texi'.
                     "DOCBOOK2X_TEXI=docbook2texi" "PERL_PATH=perl")))
         (add-after 'install 'install-shell-completion
           (lambda* (#:key outputs #:allow-other-keys)
             (let* ((out         (assoc-ref outputs "out"))
                    (completions (string-append out "/etc/bash_completion.d")))
               ;; TODO: Install the tcsh and zsh completions in the right place.
               (mkdir-p completions)
               (copy-file "contrib/completion/git-completion.bash"
                          (string-append completions "/git")))))
         (add-after 'install 'install-credential-netrc
           (lambda* (#:key outputs #:allow-other-keys)
             (let* ((netrc (assoc-ref outputs "credential-netrc")))
               (install-file "contrib/credential/netrc/git-credential-netrc.perl"
                             (string-append netrc "/bin"))
               (rename-file (string-append netrc "/bin/git-credential-netrc.perl")
                            (string-append netrc "/bin/git-credential-netrc"))
               ;; Previously, Git.pm was automatically found by netrc.
               ;; Perl 5.26 changed how it locates modules so that @INC no
               ;; longer includes the current working directory (the Perl
               ;; community calls this "dotless @INC").
               (wrap-program (string-append netrc "/bin/git-credential-netrc")
                 `("PERL5LIB" ":" prefix
                   (,(string-append (assoc-ref outputs "out") "/share/perl5")))))))
         (add-after 'install 'install-credential-libsecret
           (lambda* (#:key outputs #:allow-other-keys)
             (let* ((libsecret (assoc-ref outputs "credential-libsecret")))
               (with-directory-excursion "contrib/credential/libsecret"
                 ((assoc-ref gnu:%standard-phases 'build))
                 (install-file "git-credential-libsecret"
                               (string-append libsecret "/bin"))))))
         (add-after 'install 'install-subtree
           (lambda* (#:key outputs #:allow-other-keys)
             (let ((subtree (assoc-ref outputs "subtree")))
               (install-file "contrib/subtree/git-subtree"
                             (string-append subtree "/bin"))
               (install-file "contrib/subtree/git-subtree.1"
                             (string-append subtree "/share/man/man1")))))
         (add-after 'install 'restore-sample-hooks-shebang
           (lambda* (#:key outputs #:allow-other-keys)
             (let* ((out (assoc-ref outputs "out"))
                    (dir (string-append out "/share/git-core/templates/hooks")))
               (for-each (lambda (file)
                           (format #t "restoring shebang on `~a'~%" file)
                           (substitute* file
                             (("^#!.*/bin/sh") "#!/bin/sh")))
                         (find-files dir ".*")))))
         (add-after 'install 'split
           (lambda* (#:key inputs outputs #:allow-other-keys)
             ;; Split the binaries to the various outputs.
             (let* ((out      (assoc-ref outputs "out"))
                    (se       (assoc-ref outputs "send-email"))
                    (svn      (assoc-ref outputs "svn"))
                    (gui      (assoc-ref outputs "gui"))
                    (gitk     (string-append out "/bin/gitk"))
                    (gitk*    (string-append gui "/bin/gitk"))
                    (git-gui  (string-append out "/libexec/git-core/git-gui"))
                    (git-gui* (string-append gui "/libexec/git-core/git-gui"))
                    (git-cit  (string-append out "/libexec/git-core/git-citool"))
                    (git-cit* (string-append gui "/libexec/git-core/git-citool"))
                    (git-se   (string-append out "/libexec/git-core/git-send-email"))
                    (git-se*  (string-append se  "/libexec/git-core/git-send-email"))
                    (git-svn  (string-append out "/libexec/git-core/git-svn"))
                    (git-svn* (string-append svn "/libexec/git-core/git-svn"))
                    (git-sm   (string-append out
                                             "/libexec/git-core/git-submodule")))
               (mkdir-p (string-append gui "/bin"))
               (mkdir-p (string-append gui "/libexec/git-core"))
               (mkdir-p (string-append se  "/libexec/git-core"))
               (mkdir-p (string-append svn "/libexec/git-core"))

               (for-each (lambda (old new)
                           (copy-file old new)
                           (delete-file old)
                           (chmod new #o555))
                         (list gitk git-gui git-cit git-se git-svn)
                         (list gitk* git-gui* git-cit* git-se* git-svn*))

               ;; Tell 'git-svn' where Subversion and perl-term-readkey are.
               (wrap-program git-svn*
                 `("PATH" ":" prefix
                   (,(string-append (assoc-ref inputs "subversion")
                                    "/bin")))
                 `("PERL5LIB" ":" prefix
                   ,(map (lambda (i) (string-append (assoc-ref inputs i)
                                                    "/lib/perl5/site_perl"))
                         '("subversion" "perl-term-readkey")))

                 ;; XXX: The .so for SVN/Core.pm lacks a RUNPATH, so
                 ;; help it find 'libsvn_client-1.so'.
                 `("LD_LIBRARY_PATH" ":" prefix
                   (,(string-append (assoc-ref inputs "subversion")
                                    "/lib"))))

               ;; Tell 'git-send-email' where perl modules are.
               (wrap-program git-se*
                 `("PERL5LIB" ":" prefix
                   ,(map (lambda (o) (string-append o "/lib/perl5/site_perl"))
                         (list
                          ,@(transitive-input-references
                             'inputs
                             (map (lambda (l)
                                    (assoc l (package-inputs this-package)))
                                  '("perl-authen-sasl"
                                    "perl-net-smtp-ssl"
                                    "perl-io-socket-ssl")))))))

               ;; Tell 'gitweb.cgi' where perl modules are.
               (wrap-program (string-append out "/share/gitweb/gitweb.cgi")
                 `("PERL5LIB" ":" prefix
                   ,(map (lambda (o) (string-append o "/lib/perl5/site_perl"))
                         (list
                          ,@(transitive-input-references
                             'inputs
                             (map (lambda (l)
                                    (assoc l (package-inputs this-package)))
                                  '("perl-cgi")))))))

               ;; Tell 'git-submodule' where Perl is.
               (wrap-program git-sm
                 `("PATH" ":" prefix
                   (,(string-append (assoc-ref inputs "perl")
                                    "/bin")))))))
         (add-after 'split 'install-man-pages
           (lambda* (#:key inputs outputs #:allow-other-keys)
             (let* ((out (assoc-ref outputs "out"))
                    (man (string-append out "/share/man"))
                    (manpages (assoc-ref inputs "git-manpages")))
               (mkdir-p man)
               (with-directory-excursion man
                 (invoke "tar" "xvf" manpages))))))))

    (native-search-paths
     ;; For HTTPS access, Git needs a single-file certificate bundle, specified
     ;; with $GIT_SSL_CAINFO.
     (list (search-path-specification
            (variable "GIT_SSL_CAINFO")
            (file-type 'regular)
            (separator #f)              ;single entry
            (files '("etc/ssl/certs/ca-certificates.crt")))
           (search-path-specification
            (variable "GIT_EXEC_PATH")
            (separator #f)              ;single entry
            (files '("libexec/git-core")))))

    (synopsis "Distributed version control system")
    (description
     "Git is a free distributed version control system designed to handle
everything from small to very large projects with speed and efficiency.")
    ;; XXX: Ignore this CVE to work around a name clash with the unrelated
    ;; "cpe:2.3:a:jenkins:git" package.  The proper fix is for (guix cve) to
    ;; account for "vendor names".
    (properties '((lint-hidden-cve . ("CVE-2018-1000182"
                                      "CVE-2018-1000110"
                                      "CVE-2019-1003010"
                                      "CVE-2020-2136"
                                      "CVE-2021-21684"
                                      "CVE-2022-30947"
                                      "CVE-2022-30948"
                                      "CVE-2022-30949"
                                      "CVE-2022-36882"
                                      "CVE-2022-36883"
                                      "CVE-2022-36884"))))
    (license license:gpl2)
    (home-page "https://git-scm.com/")))

(define-public git-minimal
  ;; The size of the closure of 'git-minimal' is two thirds that of 'git'.
  ;; Its test suite runs slightly faster and most importantly it doesn't
  ;; depend on packages that are expensive to build such as Subversion.
  (package
    (inherit git)
    (name "git-minimal")
    (arguments
     (substitute-keyword-arguments (package-arguments git)
       ((#:phases phases)
        `(modify-phases ,phases
           (replace 'patch-makefiles
             (lambda _
               (substitute* "Makefile"
                 (("/usr/bin/perl") (which "perl")))))
           (delete 'build-subtree)
           (delete 'split)
           (delete 'install-man-pages)
           (delete 'install-info-manual)
           (delete 'install-subtree)
           (delete 'install-credential-netrc)
           (delete 'install-credential-libsecret)
           (add-after 'install 'remove-unusable-perl-commands
             (lambda* (#:key outputs #:allow-other-keys)
               (let* ((out     (assoc-ref outputs "out"))
                      (bin     (string-append out "/bin"))
                      (libexec (string-append out "/libexec")))
                 (for-each (lambda (file)
                             (delete-file (string-append libexec
                                                         "/git-core/" file)))
                           '("git-svn" "git-cvsimport" "git-archimport"
                             "git-cvsserver" "git-request-pull"
                             "git-add--interactive" "git-cvsexportcommit"
                             "git-instaweb" "git-send-email"))
                 (delete-file (string-append bin "/git-cvsserver"))

                 ;; These templates typically depend on Perl.  Remove them.
                 (delete-file-recursively
                  (string-append out "/share/git-core/templates/hooks"))

                 ;; Gitweb depends on Perl as well.
                 (delete-file-recursively
                  (string-append out "/share/gitweb")))))))
       ((#:make-flags flags)
        `(delete "USE_LIBPCRE2=yes" ,flags))
       ((#:configure-flags flags)
        `(list
          ,@(if (%current-target-system)
                git-cross-configure-flags
                '())))
       ((#:disallowed-references lst '())
        `(,perl ,@lst))))
    (outputs '("out"))
    (native-inputs
     `(("bash" ,bash-minimal)
       ("bash-for-tests" ,bash)
       ("native-perl" ,perl)
       ("gettext" ,gettext-minimal)))
    (inputs
     (list curl ;for HTTP(S) access
           expat ;for 'git push' over HTTP(S)
           openssl
           perl
           zlib))))

;;; The symbol git-minimal/fixed should be used when git-minimal needs fixes
;;; (security or else) and this deprecation could be removed.
(define-deprecated/public-alias git-minimal/fixed git-minimal/pinned)

(define-public git-minimal/pinned
  ;; Version that rarely changes, depended on by Graphene/GTK+.
  (package/inherit git-minimal
    (version "2.33.1")
    (source (origin
              (method url-fetch)
              (uri (string-append "mirror://kernel.org/software/scm/git/git-"
                                  version ".tar.xz"))
              (sha256
               (base32
                "0bqz401dyp8wnjj3k5ahrniwk4dalndysqazzwdvv25hqbkacm70"))))))

(define-public git2cl
  (let ((commit "1d74d4c0d933fc69ed5cec838c73502584dead05"))
    (package
      (name "git2cl")
      (version (string-append "20120919." (string-take commit 7)))
      (source (origin
                (method git-fetch)
                (uri (git-reference
                      (url "https://git.savannah.nongnu.org/git/git2cl.git")
                      (commit commit)))
                (file-name (git-file-name name version))
                (sha256
                 (base32
                  "0wnnbm2sjvfj0qrksj89jlnl69miwl0vk3wrrvgvpclgys3na2g1"))))
      (build-system copy-build-system)
      (inputs
       (list perl))
      (arguments
       `(#:install-plan '(("git2cl" "bin/git2cl"))))
      (home-page "https://savannah.nongnu.org/projects/git2cl")
      (synopsis "Convert Git logs to GNU ChangeLog format")
      (description "@code{git2cl} is a command line tool for converting Git
logs to GNU ChangeLog format.")
      (license license:gpl2+))))

(define-public gitless
  (package
    (name "gitless")
    (version "0.8.8")
    (source
     (origin
       ;; The PyPI package lacks a test suite.  Build directly from git.
       (method git-fetch)
       (uri (git-reference
             (url "https://github.com/gitless-vcs/gitless")
             (commit (string-append "v" version))))
       (sha256
        (base32 "048kl27zjr68hgs70g3l98ci9765wxva6azzrhcdys7nsdd493n6"))
       (file-name (git-file-name name version))))
    (build-system python-build-system)
    (arguments
     `(#:phases
       (modify-phases %standard-phases
         (add-before 'build 'loosen-requirements
           (lambda _
             (substitute* "setup.py"
               ;; Using Guix's python-pygit2 1.1.0 appears to work fine…
               (("pygit2==") "pygit2>="))
             #t))
         (add-before 'check 'prepare-for-tests
           (lambda _
             ;; Find the 'gl' command.
             (rename-file "gl.py" "gl")
             (setenv "PATH" (string-append (getcwd) ":" (getenv "PATH")))

             ;; The tests try to run git as if it were already set up.
             (setenv "HOME" (getcwd))
             (invoke "git" "config" "--global" "user.email" "git@example.com")
             (invoke "git" "config" "--global" "user.name" "Guix")))
         (replace 'wrap
           (lambda* (#:key inputs outputs #:allow-other-keys)
             (let ((out (assoc-ref outputs "out"))
                   (git (assoc-ref inputs "git")))
               (wrap-program (string-append out "/bin/gl")
                 `("PATH" ":" prefix (,(string-append git "/bin")))
                 `("GUIX_PYTHONPATH" ":" =
                   (,(string-append out "/lib/python"
                                    ,(version-major+minor
                                      (package-version python))
                                    "/site-packages:")
                    ,(getenv "GUIX_PYTHONPATH"))))
               #t))))))
    (native-inputs
     `(("git-for-tests" ,git-minimal)))
    (inputs
     `(("git" ,git-minimal)
       ("python-clint" ,python-clint)
       ("python-pygit2" ,python-pygit2)
       ("python-sh" ,python-sh)))
    (home-page "https://gitless.com")
    (synopsis "Simple version control system built on top of Git")
    (description
     "Gitless is a Git-compatible version control system that aims to be easy to
learn and use.  It simplifies the common workflow by committing changes to
tracked files by default and saving any uncommitted changes as part of a branch.

The friendly @command{gl} command-line interface gives feedback and helps you
figure out what to do next.

Gitless is implemented on top of Git and its commits and repositories are
indistinguishable from Git's.  You (or other contributors) can always fall back
on @command{git}, and use any regular Git hosting service.")
    (license license:expat)))

(define-public git-cal
  (package
    (name "git-cal")
    (version "0.9.1")
    (source (origin
              (method git-fetch)
              (uri (git-reference
                    (url "https://github.com/k4rthik/git-cal")
                    (commit (string-append "v" version))))
              (file-name (git-file-name name version))
              (sha256
               (base32
                "08s9sif3qlk5n2dqpzq5yjczggnqlnxldljspjdqgpfydb2dqg3z"))))
    (build-system perl-build-system)
    (home-page "https://github.com/k4rthik/git-cal/")
    (synopsis "GitHub like contributions calendar for terminal")
    (description "@code{git-cal} is a script to view commits calendar similar
to GitHub contributions calendar.")
    (license license:expat)))

(define-public libgit2
  (package
    (name "libgit2")
    (version "1.5.1")
    (source (origin
              ;; Since v1.1.1, release artifacts are no longer offered (see:
              ;; https://github.com/libgit2/libgit2/discussions/5932#discussioncomment-1682729).
              (method git-fetch)
              (uri (git-reference
                    (url "https://github.com/libgit2/libgit2")
                    (commit (string-append "v" version))))
              (file-name (git-file-name name version))
              (sha256
               (base32
                "04ypzpicpgq1wh6anwcmjjyh2b854lvjhxq0hq2hbsx7kb14qc1b"))
              (modules '((guix build utils)))
              (snippet
               '(begin
                  (delete-file-recursively "deps")))))
    (build-system cmake-build-system)
    (outputs '("out" "debug"))
    (arguments
     `(#:configure-flags
       (list "-DUSE_NTLMCLIENT=OFF" ;TODO: package this
             "-DREGEX_BACKEND=pcre2"
             "-DUSE_HTTP_PARSER=system"
             "-DUSE_SSH=ON" ; cmake fails to find libssh if this is missing
             ,@(if (%current-target-system)
                   `((string-append
                      "-DPKG_CONFIG_EXECUTABLE="
                      (search-input-file
                       %build-inputs
                       (string-append "/bin/" ,(%current-target-system)
                                      "-pkg-config"))))
                   '()))
       #:phases
       (modify-phases %standard-phases
         ;; Run checks more verbosely, unless we are cross-compiling.
         (replace 'check
           (lambda* (#:key (tests? #t) #:allow-other-keys)
             (if tests?
                 (invoke "./libgit2_tests" "-v" "-Q")
                 ;; Tests may be disabled if cross-compiling.
                 (format #t "Test suite not run.~%")))))))
    (inputs
     (list libssh2 http-parser))
    (native-inputs
     (list pkg-config python))
    (propagated-inputs
     ;; These libraries are in 'Requires.private' in libgit2.pc.
     (list openssl pcre2 zlib))
    (home-page "https://libgit2.org/")
    (synopsis "Library providing Git core methods")
    (description
     "Libgit2 is a portable, pure C implementation of the Git core methods
provided as a re-entrant linkable library with a solid API, allowing you to
write native speed custom Git applications in any language with bindings.")
    ;; GPLv2 with linking exception
    (license license:gpl2)))

(define-public libgit2-1.4
  (package
    (inherit libgit2)
    (version "1.4.5")
    (source (origin
              (inherit (package-source libgit2))
              (method git-fetch)
              (uri (git-reference
                    (url "https://github.com/libgit2/libgit2")
                    (commit (string-append "v" version))))
              (file-name (git-file-name "libgit2" version))
              (sha256
               (base32
                "0q754ipc6skagszi93lcy6qr09ibavivm2q5i5fhpdblvlnv2p7x"))))))

(define-public libgit2-1.3
  (package
    (inherit libgit2-1.4)
    (version "1.3.2")
    (source (origin
              (inherit (package-source libgit2-1.4))
              (method git-fetch)
              (uri (git-reference
                    (url "https://github.com/libgit2/libgit2")
                    (commit (string-append "v" version))))
              (file-name (git-file-name "libgit2" version))
              (sha256
               (base32
                "1dngga8jq419z6ps65wpmh2jihcf70k6r98pb1m1yiwj7qqh9792"))))
    (arguments
     (substitute-keyword-arguments (package-arguments libgit2)
       ((#:phases _ '%standard-phases)
        `(modify-phases %standard-phases
           ;; Run checks more verbosely, unless we are cross-compiling.
           (replace 'check
             (lambda* (#:key (tests? #t) #:allow-other-keys)
               (if tests?
                   (invoke "./libgit2_clar" "-v" "-Q")
                   ;; Tests may be disabled if cross-compiling.
                   (format #t "Test suite not run.~%"))))))))))

(define-public git-crypt
  (package
    (name "git-crypt")
    (version "0.7.0")
    (source
     (origin
       (method git-fetch)
       (uri (git-reference
             (url "https://github.com/AGWA/git-crypt")
             (commit version)))
       (file-name (git-file-name name version))
       (sha256
        (base32 "0ymk2z0jfyhycia8hg6wbj2g06m163yzqzanfk172cxb13fa8c26"))))
    (build-system gnu-build-system)
    (inputs
     (list git openssl))
    (native-inputs
     (list docbook-xsl libxslt))
    (arguments
     `(#:tests? #f ; No tests.
       #:phases
       (modify-phases %standard-phases
         (delete 'configure)
         (add-after 'unpack 'patch-makefile
           (lambda* (#:key inputs #:allow-other-keys)
             (substitute* "Makefile"
               (("http://docbook.sourceforge.net/release/xsl/current/manpages/docbook.xsl")
                (string-append (assoc-ref inputs "docbook-xsl")
                               "/xml/xsl/docbook-xsl-"
                               ,(package-version docbook-xsl)
                               "/manpages/docbook.xsl")))
             #t))
         (replace 'build
           (lambda _
             ;; Add flag to work around OpenSSL 3 incompatibility.
             ;; See <https://github.com/AGWA/git-crypt/issues/232>.
             (setenv "CXXFLAGS" "-DOPENSSL_API_COMPAT=0x30000000L")

             (invoke "make" "ENABLE_MAN=yes")))
         (replace 'install
           (lambda* (#:key outputs #:allow-other-keys)
             (let ((out (assoc-ref outputs "out")))
               (invoke "make" "install"
                       "ENABLE_MAN=yes"
                       (string-append "PREFIX=" out))))))))
    (home-page "https://www.agwa.name/projects/git-crypt/")
    (synopsis "Transparent encryption of files in a git repository")
    (description "git-crypt enables transparent encryption and decryption of
files in a git repository.  Files which you choose to protect are encrypted when
committed, and decrypted when checked out.  git-crypt lets you freely share a
repository containing a mix of public and private content.  git-crypt gracefully
degrades, so developers without the secret key can still clone and commit to a
repository with encrypted files.  This lets you store your secret material (such
as keys or passwords) in the same repository as your code, without requiring you
to lock down your entire repository.")
    (license license:gpl3+)))

(define-public git-remote-gcrypt
  (package
   (name "git-remote-gcrypt")
   (version "1.5")
   (source (origin
             (method git-fetch)
             (uri (git-reference
                   (url "https://git.spwhitton.name/git-remote-gcrypt")
                   (commit version)))
             (file-name (git-file-name name version))
             (sha256
              (base32
               "1m1wlbqpqyhh2z0ka3gjs5yabd32nnkzw5hak6czcqrhhkfsqbmv"))))
   (build-system trivial-build-system)
   (arguments
    `(#:modules ((guix build utils))
      #:builder (begin
                  (use-modules (guix build utils))
                  (let* ((source (assoc-ref %build-inputs "source"))
                         (output (assoc-ref %outputs "out"))
                         (bindir (string-append output "/bin")))
                    (install-file (string-append source "/git-remote-gcrypt")
                                  bindir)))))
   (home-page "https://spwhitton.name/tech/code/git-remote-gcrypt/")
   (synopsis "Whole remote repository encryption")
   (description "git-remote-gcrypt is a Git remote helper to push and pull from
repositories encrypted with GnuPG.  It works with the standard Git transports,
including repository hosting services like GitLab.

Remote helper programs are invoked by Git to handle network transport.  This
helper handles @code{gcrypt:} URLs that access a remote repository encrypted
with GPG, using our custom format.

Supported locations are local, @code{rsync://} and @code{sftp://}, where the
repository is stored as a set of files, or instead any Git URL where gcrypt
will store the same representation in a Git repository, bridged over arbitrary
Git transport.

The aim is to provide confidential, authenticated Git storage and
collaboration using typical untrusted file hosts or services.")
   (license license:gpl3+)))

(define-public cgit
  (package
    (name "cgit")
    ;; Update the ‘git-source’ input as well.
    (version "1.2.3")
    (source (origin
              (method url-fetch)
              (uri (string-append
                    "https://git.zx2c4.com/cgit/snapshot/cgit-"
                    version ".tar.xz"))
              (sha256
               (base32
                "193d990ym10qlslk0p8mjwp2j6rhqa7fq0y1iff65lvbyv914pss"))))
    (build-system gnu-build-system)
    (arguments
     '(#:tests? #f ; XXX: fail to build the in-source git.
       #:test-target "test"
       #:make-flags '("CC=gcc" "SHELL_PATH=sh")
       #:phases
       (modify-phases %standard-phases
         (add-after 'unpack 'unpack-git
           (lambda* (#:key inputs #:allow-other-keys)
             ;; Unpack the source of git into the 'git' directory.
             (invoke "tar" "--strip-components=1" "-C" "git" "-xf"
                     (assoc-ref inputs "git-source"))))
         (add-after 'unpack 'patch-absolute-file-names
           (lambda* (#:key inputs #:allow-other-keys)
             (define (quoted-file-name input path)
               (string-append "\"" input path "\""))
             (substitute* "ui-snapshot.c"
               (("\"gzip\"")
                (quoted-file-name (assoc-ref inputs "gzip") "/bin/gzip"))
               (("\"bzip2\"")
                (quoted-file-name (assoc-ref inputs "bzip2") "/bin/bzip2"))
               (("\"xz\"")
                (quoted-file-name (assoc-ref inputs "xz") "/bin/xz")))

             (substitute* "filters/about-formatting.sh"
               (("$\\(dirname $0\\)") (string-append (assoc-ref outputs "out")
                                                     "/lib/cgit/filters"))
               (("\\| tr") (string-append "| " (which "tr"))))

             (substitute* "filters/html-converters/txt2html"
               (("sed") (which "sed")))

             (substitute* "filters/html-converters/man2html"
               (("groff") (which "groff")))

             (substitute* "filters/html-converters/rst2html"
               (("rst2html\\.py") (which "rst2html.py")))

             #t))
         (delete 'configure) ; no configure script
         (add-after 'build 'build-man
           (lambda* (#:key make-flags #:allow-other-keys)
             (apply invoke "make" "doc-man" make-flags)))
         (replace 'install
           (lambda* (#:key make-flags outputs #:allow-other-keys)
             (let ((out (assoc-ref outputs "out")))
               (apply invoke
                      "make" "install" "install-man"
                      (string-append "prefix=" out)
                      (string-append "CGIT_SCRIPT_PATH=" out "/share/cgit")
                      make-flags)
               ;; Move the platform-dependent 'cgit.cgi' into lib to get it
               ;; stripped.
               (rename-file (string-append out "/share/cgit/cgit.cgi")
                            (string-append out "/lib/cgit/cgit.cgi"))
               #t)))
         (add-after 'install 'wrap-python-scripts
           (lambda* (#:key outputs #:allow-other-keys)
             (for-each
              (lambda (file)
                (wrap-program (string-append (assoc-ref outputs "out")
                                             "/lib/cgit/filters/" file)
                  `("GUIX_PYTHONPATH" ":" prefix (,(getenv "GUIX_PYTHONPATH")))))
              '("syntax-highlighting.py"
                "html-converters/md2html"))
             #t)))))
    (native-inputs
     ;; For building manpage.
     (list asciidoc gzip bzip2 xz))
    (inputs
     `(;; Building cgit requires a Git source tree.
       ("git-source"
        ,(origin
           (method url-fetch)
           ;; cgit is tightly bound to git.  Use GIT_VER from the Makefile,
           ;; which may not match the current (package-version git).
           (uri "mirror://kernel.org/software/scm/git/git-2.25.4.tar.xz")
           (sha256
            (base32 "11am6s46wmn1yll5614smjhzlghbqq6gysgcs64igjr9y5wzpdxq"))))
       ("openssl" ,openssl)
       ("groff" ,groff)
       ("python" ,python)
       ("python-docutils" ,python-docutils)
       ("python-markdown" ,python-markdown)
       ("python-pygments" ,python-pygments)
       ("zlib" ,zlib)))
    (home-page "https://git.zx2c4.com/cgit/")
    (synopsis "Web frontend for git repositories")
    (description
     "CGit is an attempt to create a fast web interface for the Git SCM, using
a built-in cache to decrease server I/O pressure.")
    (license license:gpl2)))

(define-public python-git-multimail
  (package
    (name "python-git-multimail")
    (version "1.6.0")
    (source
     (origin
       (method url-fetch)
       (uri (pypi-uri "git-multimail" version))
       (sha256
        (base32
         "0hwgf2p2dd4z397wj0y558s8xxbkzbsa6yb9n1iax624y7swjng1"))))
    (build-system python-build-system)
    (arguments
     '(#:phases
       (modify-phases %standard-phases
         (add-after 'unpack 'patch
           (lambda* (#:key inputs #:allow-other-keys)
             (substitute* "setup.py"
               (("'git-multimail', 'README.rst'")
                "'README.rst'"))
             (substitute* "git-multimail/git_multimail.py"
               (("GIT_EXECUTABLE = 'git'")
                (string-append "GIT_EXECUTABLE = '"
                               (assoc-ref inputs "git") "/bin/git"
                               "'"))
               (("/usr/sbin/sendmail")
                (search-input-file inputs
                                   "/sbin/sendmail"))))))))
    (inputs
     (list git sendmail))
    (home-page "https://github.com/git-multimail/git-multimail")
    (synopsis "Send notification emails for Git pushes")
    (description
     "This hook sends emails describing changes introduced by pushes to a Git
repository.  For each reference that was changed, it emits one ReferenceChange
email summarizing how the reference was changed, followed by one Revision
email for each new commit that was introduced by the reference change.

This script is designed to be used as a post-receive hook in a Git
repository")
    (license license:gpl2)))

(define-public python-ghp-import
  (package
    (name "python-ghp-import")
    (version "2.0.2")
    (source
     (origin
       (method git-fetch)
       (uri (git-reference
             (url "https://github.com/davisp/ghp-import")
             (commit version)))
       (file-name (git-file-name name version))
       (sha256
        (base32 "0i4lxsgqri1y8sw4k44bkwbzmdmk4vpmdi882mw148j8gk4i7vvj"))))
    (build-system python-build-system)
    (arguments
     `(#:phases (modify-phases %standard-phases
                  (add-after 'install 'install-documentation
                    (lambda* (#:key outputs #:allow-other-keys)
                      (let* ((out (assoc-ref outputs "out"))
                             (doc (string-append out "/share/doc"))
                             (licenses (string-append out "/share/licenses")))
                        (install-file "README.md" doc)
                        (install-file "LICENSE" licenses)))))))
    (propagated-inputs (list python-dateutil))
    (home-page "https://github.com/davisp/ghp-import")
    (synopsis "Copy directory to the gh-pages branch")
    (description "Script that copies a directory to the gh-pages branch (by
default) of the repository.")

    ;; See <https://bugs.gnu.org/27913>.
    (license (license:non-copyleft
              "https://raw.githubusercontent.com/davisp/ghp-import/master/LICENSE"
              "Tumbolia Public License"))))

(define-public python-gitdb
  (package
    (name "python-gitdb")
    (version "4.0.2")
    (source (origin
              (method url-fetch)
              (uri (pypi-uri "gitdb" version))
              (sha256
               (base32
                "0l113fphn6msjl3cl3kyf332b6lal7daxdd0nfma0x9ipfb013jr"))))
    (build-system python-build-system)
    (arguments
     `(#:phases (modify-phases %standard-phases
                  (add-before 'check 'create-test-repository
                    (lambda _
                      (mkdir "/tmp/testrepo")
                      ;; Some tests require a git repository, so create one.
                      (with-directory-excursion "/tmp/testrepo"
                        (do ((filecount 1 (1+ filecount)))
                            ((> filecount 1000))
                          (call-with-output-file (string-append
                                                  "file" (number->string filecount))
                            (lambda (port)
                              (format port "~a" filecount))))
                        (begin
                         (invoke "git" "init")
                         (invoke "git" "config" "user.name" "Total Git")
                         (invoke "git" "config" "user.email" "git@localhost")
                         (invoke "git" "add" "-A")
                         (invoke "git" "commit" "-q" "-m" "dummy commit")))

                      ;; The repository checkout must be a "bare" clone.
                      (invoke "git" "clone" "--bare" "/tmp/testrepo"
                              "/tmp/testrepo.git")))
                  (replace 'check
                    (lambda _
                      (setenv "GITDB_TEST_GIT_REPO_BASE" "/tmp/testrepo.git")
                      ;; Skip tests that must be run from the gitdb repository.
                      (setenv "TRAVIS" "1")
                      (invoke "nosetests" "-v"))))))
    (propagated-inputs
     (list python-smmap))
    (native-inputs
     (list git python-nose))
    (home-page "https://github.com/gitpython-developers/gitdb")
    (synopsis "Python implementation of the Git object database")
    (description
     "GitDB allows you to access @dfn{bare} Git repositories for reading and
writing.  It aims at allowing full access to loose objects as well as packs
with performance and scalability in mind.  It operates exclusively on streams,
allowing to handle large objects with a small memory footprint.")
    (license license:bsd-3)))

(define-public python-gitpython
  (package
    (name "python-gitpython")
    (version "3.1.24")
    (source (origin
              (method url-fetch)
              (uri (pypi-uri "GitPython" version))
              (sha256
               (base32
                "1rarp97cpjnhi106k2yhb7kygdyflmlgq0icxv3ggzl4wvszv0yz"))))
    (build-system python-build-system)
    (arguments
     `(#:tests? #f ;XXX: Tests can only be run within the GitPython repository.
       #:phases (modify-phases %standard-phases
                  (add-after 'unpack 'embed-git-reference
                    (lambda* (#:key inputs #:allow-other-keys)
                      (substitute* "git/cmd.py"
                        (("git_exec_name = \"git\"")
                         (string-append "git_exec_name = \""
                                        (assoc-ref inputs "git")
                                        "/bin/git\""))))))))
    (inputs
     (list git))
    (propagated-inputs
     (list python-gitdb python-typing-extensions))
    (native-inputs
     (list python-ddt python-nose))
    (home-page "https://github.com/gitpython-developers/GitPython")
    (synopsis "Python library for interacting with Git repositories")
    (description
     "GitPython is a python library used to interact with Git repositories,
high-level like git-porcelain, or low-level like git-plumbing.

It provides abstractions of Git objects for easy access of repository data,
and additionally allows you to access the Git repository more directly using
either a pure Python implementation, or the faster, but more resource intensive
@command{git} command implementation.")
    (license license:bsd-3)))

(define-public shflags
  (package
    (name "shflags")
    (version "1.2.3")
    (source (origin
              (method git-fetch)
              (uri (git-reference
                     (url "https://github.com/kward/shflags")
                     (commit (string-append "v" version))))
              (file-name (git-file-name name version))
              (sha256
               (base32
                "1ydx0sb6vz9s2dgp5bd64y7fpzh9qvmlfjxrbmzac8saknijrlly"))))
    (build-system gnu-build-system)
    (arguments
     `(#:tests? #f                      ; no tests
       #:phases
       (modify-phases %standard-phases
         (delete 'configure)            ; nothing to configure
         (delete 'build)                ; nothing to build
         (replace 'install
           (lambda* (#:key outputs #:allow-other-keys)
             (let* ((out (assoc-ref outputs "out"))
                    (src (string-append out "/src")))
               (install-file "shflags" src)
               #t))))))
    (home-page "https://github.com/kward/shflags")
    (synopsis "Command-line flags library for shell scripts")
    (description
     "Shell Flags (shFlags) is a library written to greatly simplify the
handling of command-line flags in Bourne based Unix shell scripts (bash, dash,
ksh, sh, zsh).  Most shell scripts use getopt for flags processing, but the
different versions of getopt on various OSes make writing portable shell
scripts difficult.  shFlags instead provides an API that doesn't change across
shell and OS versions so the script writer can be confident that the script
will work.")
    (license license:lgpl2.1)))

(define-public git-flow
  (package
    (name "git-flow")
    ;; This version has not be officially released yet, so we build it
    ;; directly from the git repository.
    (version "1.12.3")
    (source (origin
              (method git-fetch)
              (uri (git-reference
                    (url "https://github.com/petervanderdoes/gitflow-avh/")
                    (commit version)))
              (file-name (git-file-name name version))
              (sha256
               (base32
                "13q4mnrxr03wz2dkhzy73j384g299m4d545cnhxcaznvdwfany4h"))))
    (build-system gnu-build-system)
    (inputs (list shflags))
    (arguments
     '(#:tests? #f                    ; no tests
       #:make-flags (list (string-append "prefix="
                                         (assoc-ref %outputs "out")))
       #:phases
       (modify-phases %standard-phases
         (add-after 'unpack 'reset-shFlags-link
           (lambda* (#:key inputs #:allow-other-keys)
             ;; The link points to a file in the shFlags submodule.
             ;; Redirect it to point to our system shFlags.
             (let ((shflags (assoc-ref inputs "shflags")))
               (begin
                 (delete-file "gitflow-shFlags")
                 (symlink (string-append shflags "/src/shflags")
                          "gitflow-shFlags")))))
         (delete 'configure)
         (delete 'build))))
    (home-page "https://nvie.com/posts/a-successful-git-branching-model/")
    (synopsis "Git extensions for Vincent Driessen's branching model")
    (description
     "Vincent Driessen's branching model is a git branching and release
management strategy that helps developers keep track of features, hotfixes,
and releases in bigger software projects.  The git-flow library of git
subcommands helps automate some parts of the flow to make working with it a
lot easier.")
    (license license:bsd-2)))

(define-public stgit
  (package
    (name "stgit")
    (version "1.5")
    (source
     (origin
       (method git-fetch)
       (uri (git-reference
             (url "https://github.com/ctmarinas/stgit")
             (commit (string-append "v" version))))
       (file-name (git-file-name name version))
       (sha256
        (base32 "1igljjpdgl4na1a5hi0nmg36ph0hw6hw8hhq5436fgcl8yjimyz3"))))
    (build-system python-build-system)
    (native-inputs
     (list perl))
    (inputs
     (list git))
    (arguments
     `(#:phases
       (modify-phases %standard-phases
         (add-after 'unpack 'hard-code-version
           (lambda _
             ;; setup.py tries to cleverly extract the version number from the
             ;; git history, which the source checkout lacks.  Hard-code one.
             (substitute* "setup.py"
               (("get_ver\\(\\)")
                (format #f "'~a'" ,version)))
             #t))
         (add-before 'check 'patch-tests
           (lambda _
             (substitute* (list "t/t1900-mail.sh"
                                "t/t7504-commit-msg-hook.sh")
               (("/bin/sh")
                (which "bash")))
             #t))
         (replace 'check
           (lambda _
             (invoke "make"
                     "PERL_PATH=perl"
                     (string-append "SHELL_PATH=" (which "bash"))
                     "test"))))))
    (home-page "https://stacked-git.github.io/")
    (synopsis "Stacked Git")
    (description
     "StGit is a command-line application that provides functionality similar
to Quilt (i.e., pushing/popping patches to/from a stack), but using Git
instead of @command{diff} and @command{patch}.  StGit stores its patches in a
Git repository as normal Git commits, and provides a number of commands to
manipulate them in various ways.")
    (license license:gpl2)))

(define-public vcsh
  (package
    (name "vcsh")
    (version "2.0.5")
    (source
     (origin
       (method git-fetch)
       (uri (git-reference
             (url "https://github.com/RichiH/vcsh")
             (commit (string-append "v" version))))
       (file-name (git-file-name name version))
       (sha256
        (base32 "15lb09c2q261p1pp5r7j9k8389ybrd2q19xhnp1nnha6gs78i4wq"))))
    (build-system gnu-build-system)
    (native-inputs
     (list autoconf
           automake
           ;; for man page
           ronn-ng
           ;; for tests
           perl
           perl-test-harness
           perl-shell-command
           perl-test-most
           ;; for bash-completion
           pkg-config))
    (inputs
     (list git))
    (arguments
     '(#:phases
       (modify-phases %standard-phases
         (add-before 'bootstrap 'fix-version-gen
           (lambda _
             (call-with-output-file ".tarball-version"
               (lambda (port)
                 (display version port))))))
       #:make-flags (list (string-append "PREFIX="
                                         (assoc-ref %outputs "out")))
       #:test-target "test"))
    (home-page "https://github.com/RichiH/vcsh")
    (synopsis "Version control system for @code{$HOME}")
    (description
     "vcsh version-controls configuration files in several Git repositories,
all in one single directory.  They all maintain their working trees without
clobbering each other or interfering otherwise.  By default, all Git
repositories maintained via vcsh store the actual files in @code{$HOME},
though this can be overridden.")
    (license license:gpl2+)))

(define-public git-test-sequence
  (let ((commit "48e5a2f5a13a5f30452647237e23362b459b9c76"))
    (package
      (name "git-test-sequence")
      (version (string-append "20140312." (string-take commit 7)))
      (source (origin
                (method git-fetch)
                (uri (git-reference
                      ;; There are many other scripts in this directory; we
                      ;; are interested in just one for this package.
                      (url "https://github.com/dustin/bindir")
                      (commit commit)))
                (file-name (git-file-name name version))
                (sha256
                 (base32
                  "1dcq0y16yznbv4k9h8gg90kv1gkn8r8dbvl4m2rpfd7q5nqhn617"))))
      (build-system trivial-build-system)
      (arguments
       `(#:modules ((guix build utils))
         #:builder (begin
                     (use-modules (guix build utils))
                     (let* ((source (assoc-ref %build-inputs "source"))
                            (output (assoc-ref %outputs "out"))
                            (bindir (string-append output "/bin"))
                            (script "git-test-sequence"))
                       (install-file (string-append source "/" script)
                                     bindir)
                       #t))))
      (home-page "https://dustin.sallings.org/2010/03/28/git-test-sequence.html")
      (synopsis "Run a command over a sequence of commits")
      (description
       "git-test-sequence is similar to an automated git bisect except it’s
linear.  It will test every change between two points in the DAG.  It will
also walk each side of a merge and test those changes individually.")
      (license (license:x11-style "file://LICENSE")))))

(define* (make-gitolite #:optional (extra-inputs '()))
  "Make a gitolite package object with EXTRA-INPUTS added to the binary
wrappers, to be used for optional gitolite extensions."
  (package
    (name "gitolite")
    (version "3.6.12")
    (source
     (origin
       (method git-fetch)
       (uri (git-reference
             (url "https://github.com/sitaramc/gitolite")
             (commit (string-append "v" version))))
       (file-name (git-file-name name version))
       (sha256
        (base32 "05xw1pmagvkrbzga5pgl3xk9qyc6b5x73f842454f3w9ijspa8zy"))))
    (build-system gnu-build-system)
    (arguments
     (list #:tests? #f ; no tests
           #:phases
           #~(modify-phases %standard-phases
               (delete 'configure)
               (delete 'build)
               (add-before 'install 'patch-scripts
                 (lambda* _
                   ;; This seems to take care of every shell script that
                   ;; invokes Perl.
                   (substitute* (find-files ".")
                     ((" perl -")
                      (string-append " " #$perl "/bin/perl" " -")))

                   (substitute* (find-files "src/triggers" ".*")
                     ((" sed ")
                      (string-append " " #$sed "/bin/sed" " ")))

                   (substitute*
                       '("src/triggers/post-compile/update-gitweb-access-list"
                         "src/triggers/post-compile/ssh-authkeys-split"
                         "src/triggers/upstream")
                     ((" grep ")
                      (string-append " " #$grep "/bin/grep" " ")))

                   ;; Avoid references to the store in authorized_keys.
                   ;; This works because gitolite-shell is in the PATH.
                   (substitute* "src/triggers/post-compile/ssh-authkeys"
                     (("\\$glshell \\$user")
                      "gitolite-shell $user"))))
               (add-before 'install 'patch-source
                 (lambda* _
                   ;; Gitolite uses cat to test the readability of the
                   ;; pubkey
                   (substitute* "src/lib/Gitolite/Setup.pm"
                     (("\"cat ")
                      (string-append "\"" #$coreutils "/bin/cat" " "))
                     (("\"ssh-keygen")
                      (string-append "\"" #$openssh "/bin/ssh-keygen")))

                   (substitute* '("src/lib/Gitolite/Hooks/PostUpdate.pm"
                                  "src/lib/Gitolite/Hooks/Update.pm")
                     (("/usr/bin/perl")
                      (string-append #$perl "/bin/perl")))

                   (substitute* "src/lib/Gitolite/Common.pm"
                     (("\"ssh-keygen")
                      (string-append "\"" #$openssh "/bin/ssh-keygen"))
                     (("\"logger\"")
                      (string-append "\"" #$inetutils "/bin/logger\"")))

                   (substitute* "src/lib/Gitolite/Cache.pm"
                     (("/usr/sbin/redis-server") "redis-server"))

                   (substitute* "src/commands/svnserve"
                     (("/usr/bin/svnserve") "svnserve"))))
               (replace 'install
                 (lambda* _
                   (let* ((sharedir (string-append #$output "/share/gitolite"))
                          (bindir (string-append #$output "/bin")))
                     (mkdir-p sharedir)
                     (mkdir-p bindir)
                     (invoke "./install" "-to" sharedir)
                     ;; Create symlinks for executable scripts in /bin.
                     (for-each (lambda (script)
                                 (symlink (string-append sharedir "/" script)
                                          (string-append bindir "/" script)))
                               '("gitolite" "gitolite-shell")))))
               (add-after 'install 'wrap-scripts
                 (lambda* _
                   (for-each (lambda (file-name)
                               (wrap-program (string-append #$output file-name)
                                 `("PATH" ":" prefix
                                   ,(map (lambda (dir)
                                           (string-append dir "/bin"))
                                         (list #$output
                                               #$coreutils
                                               #$findutils
                                               #$git
                                               #$@extra-inputs)))))
                             '("/bin/gitolite" "/bin/gitolite-shell")))))))
    (inputs
     (append (list bash-minimal coreutils findutils git inetutils openssh perl)
             extra-inputs))
    (home-page "https://gitolite.com")
    (synopsis "Git access control layer")
    (description
     "Gitolite is an access control layer on top of Git, providing fine access
control to Git repositories.")
    (license license:gpl2)))

(define-public gitolite (make-gitolite))

(define-public gitile
  (package
    (name "gitile")
    (version "0.1.4")
    (source
     (origin
       (method git-fetch)
       (uri (git-reference
              (url "https://git.lepiller.eu/git/gitile")
              (commit version)))
       (file-name (git-file-name name version))
       (sha256
        (base32 "1wb1rajcrzdqjncv40s7hjsnvlh1gq4z9pn9gf210g1iy35vimmz"))))
    (build-system gnu-build-system)
    (arguments
     `(#:imported-modules ((guix build guile-build-system)
                           ,@%gnu-build-system-modules)
       #:make-flags (list "GUILE_AUTO_COMPILE=0")
       #:phases
       (modify-phases %standard-phases
         (replace 'bootstrap
           (lambda _
             ;; The 'bootstrap' script lacks a shebang, leading to "Exec
             ;; format error" with glibc 2.35.
             (invoke "autoreconf" "-vfi")))
         (add-after 'install-bin 'wrap-program
           (lambda* (#:key inputs outputs #:allow-other-keys)
             (use-modules (guix build guile-build-system))
             ;; Wrap the 'gitile' command to refer to the right modules.
             (let* ((out    (assoc-ref outputs "out"))
                    (commonmark (assoc-ref inputs "guile-commonmark"))
                    (git    (assoc-ref inputs "guile-git"))
                    (bytes  (assoc-ref inputs "guile-bytestructures"))
                    (fibers (assoc-ref inputs "guile-fibers"))
                    (gcrypt (assoc-ref inputs "guile-gcrypt"))
                    (syntax-highlight (assoc-ref inputs "guile-syntax-highlight"))
                    (deps   (list out commonmark git bytes fibers gcrypt
                                  syntax-highlight))
                    (guile  (assoc-ref inputs "guile"))
                    (effective (target-guile-effective-version))
                    (mods   (string-drop-right  ;drop trailing colon
                             (string-join deps
                                          (string-append "/share/guile/site/"
                                                         effective ":")
                                          'suffix)
                             1))
                    (objs   (string-drop-right
                             (string-join deps
                                          (string-append "/lib/guile/" effective
                                                         "/site-ccache:")
                                          'suffix)
                             1)))
               (wrap-program (string-append out "/bin/gitile")
                 `("GUILE_LOAD_PATH" ":" prefix (,mods))
                 `("GUILE_LOAD_COMPILED_PATH" ":" prefix (,objs)))))))))
    (native-inputs
     (list autoconf automake guile-3.0 pkg-config))
    (inputs
     (list guile-3.0
           guile-commonmark
           guile-fibers
           guile-gcrypt
           guile-git
           guile-syntax-highlight-for-gitile
           guile-gnutls))
    (home-page "https://git.lepiller.eu/gitile")
    (synopsis "Simple Git forge written in Guile")
    (description "Gitile is a Git forge written in Guile that lets you
visualize your public Git repositories on a web interface.")
    (license license:agpl3+)))

(define-public pre-commit
  (package
    (name "pre-commit") ;formerly known as python-pre-commit
    (version "3.2.2")
    (source
     (origin
       (method git-fetch)               ; no tests in PyPI release
       (uri (git-reference
             (url "https://github.com/pre-commit/pre-commit")
             (commit (string-append "v" version))))
       (file-name (git-file-name name version))
       (sha256
        (base32 "11zbnl08bqyl8s12i58szn5gcali4p6dwwbzln8bk92kb721s52r"))
       (modules '((guix build utils)))
       (snippet '(substitute* "setup.cfg"
                   (("virtualenv>=20.10.0") ;our virtualenv (20.3.1) is fine
                    "virtualenv>=20.0.8")))))
    (build-system python-build-system)
    (arguments
     `(#:phases
       (modify-phases %standard-phases
         (add-before 'check 'prepare-check-env
           (lambda _
             ;; Change from /homeless-shelter to /tmp for write permission.
             (setenv "HOME" "/tmp")
             ;; Environment variables used in the tests.
             (setenv "GIT_AUTHOR_NAME" "Your Name")
             (setenv "GIT_COMMITTER_NAME" "Your Name")
             (setenv "GIT_AUTHOR_EMAIL" "you@example.com")
             (setenv "GIT_COMMITTER_EMAIL" "you@example.com")
             ;; Some tests still fail with PermissionError.  Make the source
             ;; tree writable.
             (for-each make-file-writable (find-files "."))
             ;; Some tests will need a working git repository.
             (invoke "git" "init")
             (invoke "git" "config" "--global" "user.name" "Your Name")
             (invoke "git" "config" "--global" "user.email" "you@example.com")))
         (replace 'check
           (lambda* (#:key inputs outputs tests? #:allow-other-keys)
             (add-installed-pythonpath inputs outputs)
             (when tests?
               ;; The file below contains 30+ tests that fail because they
               ;; depend on tools from multiple languages (cargo, npm, cpan,
               ;; Rscript, etc).  Other tests are passing, but it's more
               ;; convenient to skip the file than list 30 tests to skip.
               (invoke "pytest" "--ignore=tests/repository_test.py"
                       ;; Ruby and Node tests require node and gem.
                       "--ignore=tests/languages/node_test.py"
                       "--ignore=tests/languages/ruby_test.py"
                       ;; Skip lang-specific (network) tests added in 3.1.1
                       "--ignore=tests/languages/conda_test.py"
                       "--ignore=tests/languages/coursier_test.py"
                       "--ignore=tests/languages/dart_test.py"
                       "--ignore=tests/languages/docker_test.py"
                       "--ignore=tests/languages/docker_image_test.py"
                       "--ignore=tests/languages/dotnet_test.py"
                       "--ignore=tests/languages/golang_test.py"
                       "--ignore=tests/languages/lua_test.py"
                       "--ignore=tests/languages/perl_test.py"
                       "--ignore=tests/languages/rust_test.py"
                       "--ignore=tests/languages/swift_test.py"
                       "-k"
                       (string-append
                        ;; TODO: these tests fail with AssertionError.  It may
                        ;; be possible to fix them.
                        "not test_install_existing_hooks_no_overwrite"
                        " and not test_uninstall_restores_legacy_hooks"
                        " and not test_installed_from_venv"
                        " and not test_healthy_venv_creator"
                        " and not test_r_hook and not test_r_inline"))))))))
    (native-inputs
     `(("git" ,git-minimal)
       ("python-covdefaults" ,python-covdefaults)
       ("python-coverage" ,python-coverage)
       ("python-distlib" ,python-distlib)
       ("python-pytest" ,python-pytest)
       ("python-pytest-env" ,python-pytest-env)
       ("python-re-assert" ,python-re-assert)
       ("which" ,which)))
    ;; Propagate because pre-commit is also used as a module.
    (propagated-inputs
     (list python-cfgv
           python-identify
           python-nodeenv
           python-pyyaml
           python-virtualenv))
    (home-page "https://pre-commit.com/")
    (synopsis "Framework for managing and maintaining pre-commit hooks")
    (description
     "Pre-commit is a multi-language package manager for pre-commit hooks.  You
specify a list of hooks you want and pre-commit manages the installation and
execution of any hook written in any language before every commit.")
    (license license:expat)))

(define-public python-pre-commit
  (deprecated-package "python-pre-commit" pre-commit))

(define-public mercurial
  (package
    (name "mercurial")
    (version "6.2.2")
    (source (origin
             (method url-fetch)
             (uri (string-append "https://www.mercurial-scm.org/"
                                 "release/mercurial-" version ".tar.gz"))
             (patches (search-patches "mercurial-hg-extension-path.patch"
                                      "mercurial-openssl-compat.patch"))
             (sha256
              (base32
               "1pr00hdk3l9095fhq6302fgj0wmbqhqs93y4r457ba4pyjjrvyly"))
             (modules '((guix build utils)))
             (snippet
              '(substitute* (find-files "tests" "\\.(t|sh)$")
                 ;; grep 3.8 emits deprecation warnings for 'egrep' and
                 ;; 'fgrep' which breaks expected test output.
                 (("egrep") "grep -E")
                 (("fgrep") "grep -F")))))
    (build-system gnu-build-system)
    (arguments
     `(#:make-flags
       (list (string-append "PREFIX=" (assoc-ref %outputs "out")))
       #:phases
       (modify-phases %standard-phases
         (delete 'configure)
         (add-after 'unpack 'patch-tests
           (lambda _
             (substitute* (find-files "tests" "\\.(t|py)$")
               (("/bin/sh")
                (which "sh"))
               (("/usr/bin/env")
                (which "env")))))
         (replace 'check
           (lambda* (#:key tests? #:allow-other-keys)
             (with-directory-excursion "tests"
               ;; The following tests are known to fail.
               (for-each delete-file
                         '(;; XXX: This test calls 'run-tests.py --with-hg=
                           ;; `which hg`' and fails because there is no hg on
                           ;; PATH from before (that's why we are building it!)?
                           "test-hghave.t"

                           ;; This test creates a shebang spanning multiple
                           ;; lines which is difficult to substitute.  It
                           ;; only tests the test runner itself, which gets
                           ;; thoroughly tested during the check phase anyway.
                           "test-run-tests.t"

                           ;; These tests fail because the program is not
                           ;; connected to a TTY in the build container.
                           "test-nointerrupt.t"
                           "test-transaction-rollback-on-sigpipe.t"

                           ;; FIXME: This gets killed but does not receive an interrupt.
                           "test-commandserver.t"

                           ;; These tests get unexpected warnings about using
                           ;; deprecated functionality in Python, but otherwise
                           ;; succeed; try enabling for later Mercurial versions.
                           "test-demandimport.py"
                           "test-patchbomb-tls.t"
                           ;; Similarly, this gets a more informative error
                           ;; message from Python 3.10 than it expects.
                           "test-http-bad-server.t"

                           ;; Only works when run in a hg-repo, not in an
                           ;; extracted tarball
                           "test-doctest.py"

                           ;; TODO: the fqaddr() call fails in the build
                           ;; container, causing these server tests to fail.
                           "test-hgwebdir.t"
                           "test-http-branchmap.t"
                           "test-pull-bundle.t"
                           "test-push-http.t"
                           "test-serve.t"
                           "test-subrepo-deep-nested-change.t"
                           "test-subrepo-recursion.t"))
               (when tests?
                 (invoke "./run-tests.py"
                         ;; ‘make check’ does not respect ‘-j’.
                         (string-append "-j" (number->string
                                              (parallel-job-count)))
                         ;; The default time-outs are too low for many systems.
                         ;; Raise them generously: Guix enforces its own.
                         "--timeout" "86400"
                         "--slowtimeout" "86400"
                         ;; The test suite takes a long time and produces little
                         ;; output by default.  Prevent timeouts due to silence.
                         "-v"))))))))
    (native-inputs
     (list python-docutils
           ;; The following inputs are only needed to run the tests.
           python-nose unzip which))
    (inputs
     (list python-wrapper))
    ;; Find third-party extensions.
    (native-search-paths
     (list (search-path-specification
            (variable "HGEXTENSIONPATH")
            (files '("lib/python3.10/site-packages/hgext3rd")))))
    (home-page "https://www.mercurial-scm.org/")
    (synopsis "Decentralized version control system")
    (description
     "Mercurial is a free, distributed source control management tool.  It
efficiently handles projects of any size and offers an easy and intuitive
interface.")
    (license license:gpl2+)))

(define-public python-hg-evolve
  (package
    (name "python-hg-evolve")
    (version "10.3.2")
    (source
      (origin
        (method hg-fetch)
        (uri (hg-reference
               (url "https://www.mercurial-scm.org/repo/evolve")
               (changeset version)))
        (file-name (hg-file-name name version))
        (sha256
          (base32
            "0qgk39s5pwxbshfa6x1f1ccxahja3fs265dddxy6q99spy3b3x5h"))))
    (build-system python-build-system)
    (arguments
     ;; Tests need mercurial source code.
     '(#:tests? #f))
    (propagated-inputs
      (list mercurial))
    (home-page "https://www.mercurial-scm.org/doc/evolution/")
    (synopsis "Flexible evolution of Mercurial history")
    (description "Evolve is a Mercurial extension for faster and safer mutable
history.  It implements the changeset evolution concept for Mercurial.")
    (license license:gpl2)))

(define-public hg-commitsigs
  ;; Latest tag is 11 years old.
  (let ((changeset "b53eb6862bff")
        (revision "0"))
    (package
      (name "hg-commitsigs")
      (version (git-version "0.1.0" revision changeset))
      (source (origin
                (method hg-fetch)
                (uri (hg-reference
                      (url "https://foss.heptapod.net/mercurial/commitsigs")
                      (changeset changeset)))
                (file-name (git-file-name name version))
                (sha256
                 (base32
                  "059gm66q06m6ayl4brsc517zkw3ahmz249b6xm1m32ac5y24wb9x"))))
      (build-system copy-build-system)
      (arguments
       `(#:imported-modules ((guix build python-build-system)
                             ,@%copy-build-system-modules)
         #:modules ((srfi srfi-1)
                    (guix build python-build-system)
                    ;; Don't use `%copy-build-system-modules' because
                    ;; `standard-phases' from (guix build gnu-build-system)
                    ;; shadows the one from (guix build copy-build-system),
                    ;; which is the one we actually want.
                    (guix build copy-build-system)
                    ((guix build gnu-build-system) #:prefix gnu)
                    (guix build utils)
                    (guix build gremlin)
                    (ice-9 ftw)
                    (guix elf))
         #:phases
         (modify-phases %standard-phases
           (add-after 'unpack 'patch-paths
           (lambda* (#:key inputs #:allow-other-keys)
             (let ((gpg (search-input-file inputs "/bin/gpg"))
                   (openssl (search-input-file inputs "/bin/openssl")))
               (substitute* "commitsigs.py"
                 (("b'gpg',") (string-append "b'" gpg "',"))
                 (("b'openssl',") (string-append "b'" openssl "',")))))))
         #:install-plan
         `(("commitsigs.py" ,(string-append "lib/python"
                                            (python-version
                                             (assoc-ref %build-inputs "python"))
                                            "/site-packages/hgext3rd/commitsigs.py")))))
      (native-inputs
       (list python))
      (inputs
       (list gnupg openssl))
      (home-page "https://foss.heptapod.net/mercurial/commitsigs")
      (synopsis "Automatic signing of changeset hashes")
      (description "This package provides a Mercurial extension for signing
the changeset hash of commits.  The signure is embedded directly in the
changeset itself; there won't be any extra commits.  Either GnuPG or OpenSSL
can be used for signing.")
      (license license:gpl2))))                   ;per commitsigs.py

(define-public neon
  (package
    (name "neon")
    (version "0.32.2")
    (source (origin
             (method url-fetch)
             (uri (string-append "https://notroj.github.io/neon/neon-"
                                 version ".tar.gz"))
             (sha256
              (base32
               "11mj5zpp317dmds874wfwcpgij9i3scaahdi1xfzr5b2ii36crcq"))))
    (build-system gnu-build-system)
    (native-inputs
     (list perl pkg-config))
    (inputs
     (list libxml2 openssl zlib))
    (arguments
     `(;; FIXME: Add tests once reverse address lookup is fixed in glibc, see
       ;; https://sourceware.org/bugzilla/show_bug.cgi?id=16475
       #:tests? #f
       #:configure-flags '("--enable-shared"
                           "--disable-static"
                           ;; requires libgnutils-config, deprecated
                           ;; in gnutls 2.8.
                           ; "--with-ssl=gnutls")))
                           "--with-ssl=openssl")))
    (home-page "https://notroj.github.io/neon/")
    (synopsis "HTTP and WebDAV client library")
    (description
     "Neon is an HTTP and WebDAV client library, with a C interface and the
following features:
@enumerate
@item High-level wrappers for common HTTP and WebDAV operations (GET, MOVE,
  DELETE, etc.);
@item low-level interface to the HTTP request/response engine, allowing the use
  of arbitrary HTTP methods, headers, etc.;
@item authentication support including Basic and Digest support, along with
  GSSAPI-based Negotiate on Unix, and SSPI-based Negotiate/NTLM on Win32;
@item SSL/TLS support using OpenSSL or GnuTLS, exposing an abstraction layer for
  verifying server certificates, handling client certificates, and examining
  certificate properties, smartcard-based client certificates are also
  supported via a PKCS#11 wrapper interface;
@item abstract interface to parsing XML using libxml2 or expat, and wrappers for
  simplifying handling XML HTTP response bodies;
@item WebDAV metadata support, wrappers for PROPFIND and PROPPATCH to simplify
  property manipulation.
@end enumerate\n")
    (license license:gpl2+))) ; for documentation and tests; source under lgpl2.0+

(define-public subversion
  (package
    (name "subversion")
    (version "1.14.2")
    (source (origin
              (method url-fetch)
              (uri (string-append "mirror://apache/subversion/"
                                  "subversion-" version ".tar.bz2"))
              (sha256
               (base32
                "0a6csc84hfymm8b5cnvq1n1p3rjjf33qy0z7y1k8lwkm1f6hw4y9"))))
    (build-system gnu-build-system)
    (arguments
     (list
      ;; Running the tests in parallel causes test failures on i686-linux.
      ;; The issue was reported to users@subversion.apache.org, as suggested
      ;; at https://subversion.apache.org/reporting-issues.
      #:parallel-tests? #f
      #:configure-flags #~(list "--enable-static=no")
      #:phases
      #~(modify-phases %standard-phases
          (add-after 'configure 'patch-libtool-wrapper-ls
            (lambda* (#:key inputs #:allow-other-keys)
              ;; This substitution allows tests svnauthz_tests and svnlook_tests
              ;; to pass.  These tests execute svnauthz and svnlook through
              ;; their libtool wrapper scripts from svn hooks, whose empty
              ;; environments cause "ls: command not found" errors.  It would be
              ;; nice if this fix ultimately made its way into libtool.
              (substitute* "libtool"
                (("\\\\`ls")
                 (string-append "\\`" (search-input-file inputs "bin/ls"))))))
          (add-before 'build 'patch-test-sh
            (lambda _
              (substitute* "subversion/tests/libsvn_repos/repos-test.c"
                (("#!/bin/sh") (string-append "#!" (which "sh"))))))
          (add-before 'check 'set-PARALLEL
            (lambda* (#:key parallel-tests? #:allow-other-keys)
              (if parallel-tests?
                  (setenv "PARALLEL" (number->string (parallel-job-count)))
                  (simple-format #t "parallel-tests? are disabled\n"))))
          (add-after 'install 'install-perl-bindings
            (lambda _
              ;; Follow the instructions from 'subversion/bindings/swig/INSTALL'.
              (invoke "make" "swig-pl-lib")
              ;; FIXME: Test failures.
              ;; (invoke "make" "check-swig-pl")
              (invoke "make" "install-swig-pl-lib")

              ;; Set the right installation prefix.
              (with-directory-excursion "subversion/bindings/swig/perl/native"
                (invoke "perl" "Makefile.PL" "NO_PERLLOCAL=1"
                        (string-append "PREFIX=" #$output))
                (invoke "make" "install"
                        (string-append "OTHERLDFLAGS=-Wl,-rpath="
                                       #$output "/lib"))))))))
    (native-inputs
     (list pkg-config
           ;; For the Perl bindings.
           swig))
    (inputs
     (list apr
           apr-util
           lz4
           perl
           python-wrapper
           serf
           sqlite
           utf8proc
           zlib))
    (home-page "https://subversion.apache.org/")
    (synopsis "Revision control system")
    (description
     "@dfn{Subversion} (svn) exists to be recognized and adopted as a
centralized version control system characterized by its
reliability as a safe haven for valuable data; the simplicity of its model and
usage; and its ability to support the needs of a wide variety of users and
projects, from individuals to large-scale enterprise operations.")
    (license license:asl2.0)))

(define-public rcs
  (package
    (name "rcs")
    (version "5.10.1")
    (source (origin
             (method url-fetch)
             (uri (string-append "mirror://gnu/rcs/rcs-"
                                 version ".tar.lz"))
             (sha256
              (base32
               "1iac4d1dhsfy5zb0n3p605pihdq702v06r4g8vi8b2saf88gxpa3"))))
    (build-system gnu-build-system)
    (arguments `(#:phases
                 (modify-phases %standard-phases
                   (add-after 'install 'install-rcsfreeze
                     (lambda* (#:key outputs #:allow-other-keys)
                       (let* ((out (assoc-ref outputs "out"))
                              (bin (string-append out "/bin"))
                              (man1 (string-append out "/share/man/man1")))
                         (chmod "src/rcsfreeze" #o755)
                         (install-file "src/rcsfreeze" bin)
                         (install-file "man/rcsfreeze.1" man1)))))))
    (native-inputs (list ed lzip))
    (home-page "https://www.gnu.org/software/rcs/")
    (synopsis "Per-file local revision control system")
    (description
     "RCS is the original Revision Control System.  It works on a
file-by-file basis, in contrast to subsequent version control systems such as
CVS, Subversion, and Git.  This can make it suitable for system
administration files, for example, which are often inherently local to one
machine.")
    (license license:gpl3+)))

(define-public rcs-blame
  (package
    (name "rcs-blame")
    (version "1.3.1-20210207")
    (source (origin
             (method url-fetch)
             (uri (string-append
                   "https://invisible-mirror.net/archives/rcs-blame/blame-"
                   version ".tgz"))
             (sha256
              (base32
               "1j0brsvdx3hlbwchddafh8r2xmxv5vg4ahpd68v4bb9xhcq6pcih"))))
    (build-system gnu-build-system)
    (home-page "https://invisible-island.net/rcs-blame/rcs-blame.html")
    (synopsis "Display the last modification for each line in an RCS file")
    (description
     "@code{blame} outputs an annotated revision from each RCS file.  An
annotated RCS file describes the revision and date in which each line was
added to the file, and the author of each line.")
    (license license:gpl2+)))

(define-public rcshist
  (package
    (name "rcshist")
    (version "1.04-20190106")
    (source (origin
             (method url-fetch)
             (uri (string-append
                   "https://invisible-mirror.net/archives/rcshist/rcshist-"
                   version ".tgz"))
             (sha256
              (base32
               "01ab3xwgm934lxr8bm758am3vxwx4hxx7cc9prbgqj5nh30vdg1n"))))
    (build-system gnu-build-system)
    (home-page "https://invisible-island.net/rcshist/rcshist.html")
    (synopsis "Display RCS change history")
    (description
     "The @code{rcshist} utility displays the complete revision history of a
set of RCS files including log messages and patches.  It can also display the
patch associated with a particular revision of an RCS file.")
    (license (list license:bsd-2
                   license:bsd-3))))  ; bsd_queue.h

(define-public cvs
  (package
    (name "cvs")
    (version "1.12.13")
    (source (origin
             (method url-fetch)
             (uri (string-append
                   "https://ftp.gnu.org/non-gnu/cvs/source/feature/"
                   version "/cvs-" version ".tar.bz2"))
             (patches (search-patches "cvs-CVE-2017-12836.patch"))
             (sha256
              (base32
               "0pjir8cwn0087mxszzbsi1gyfc6373vif96cw4q3m1x6p49kd1bq"))))
    (build-system gnu-build-system)
    (arguments
     ;; XXX: The test suite looks flawed, and the package is obsolete anyway.
     '(#:tests? #f
       #:configure-flags (list "--with-external-zlib")))
    (inputs (list zlib nano))                    ; the default editor
    (home-page "https://cvs.nongnu.org")
    (synopsis "Historical centralized version control system")
    (description
     "CVS is a version control system, an important component of Source
Configuration Management (SCM).  Using it, you can record the history of
sources files, and documents.  It fills a similar role to the free software
RCS, PRCS, and Aegis packages.")
    (license license:gpl1+)))

(define-public cvs-fast-export
  (package
    (name "cvs-fast-export")
    (version "1.56")
    (source (origin
              (method url-fetch)
              (uri (string-append "http://www.catb.org/~esr/cvs-fast-export/"
                                  "cvs-fast-export-" version ".tar.gz"))
              (sha256
               (base32
                "058bzp3npng48ascls943m16kgvrl0h197a10brf7mvx8zpfc7sc"))))
    (build-system gnu-build-system)
    (arguments
     '(#:phases
       (modify-phases %standard-phases
         (delete 'configure))       ; no configure script
       #:parallel-build? #f         ; parallel a2x commands fail spectacularly
       #:make-flags
       (list "CC=gcc" (string-append "prefix?=" (assoc-ref %outputs "out")))))
    (inputs
     `(("git" ,git)
       ("python" ,python-wrapper)))
    (native-inputs
     (list asciidoc
           ;; These are needed for the tests.
           cvs rcs))
    (home-page "http://www.catb.org/esr/cvs-fast-export/")
    (synopsis "Export an RCS or CVS history as a fast-import stream")
    (description "This program analyzes a collection of RCS files in a CVS
repository (or outside of one) and, when possible, emits an equivalent history
in the form of a fast-import stream.  Not all possible histories can be
rendered this way; the program tries to emit useful warnings when it can't.

The program can also produce a visualization of the resulting commit directed
acyclic graph (DAG) in the input format of @uref{http://www.graphviz.org,
Graphviz}.  The package also includes @command{cvssync}, a tool for mirroring
masters from remote CVS hosts.")
    (license license:gpl2+)))

(define-public vc-dwim
  (package
    (name "vc-dwim")
    (version "1.10")
    (source (origin
             (method url-fetch)
             (uri (string-append "mirror://gnu/vc-dwim/vc-dwim-"
                                 version ".tar.xz"))
             (sha256
              (base32
               "0am6axxdvkm2vwgg0gjrd930yv4dlsdbf0rdv0zh5bhy1ir64rph"))))
    (build-system gnu-build-system)
    (inputs (list perl))
    (native-inputs
     (list emacs-minimal ; for `ctags'
           inetutils))   ; for `hostname', used in the tests
    (home-page "https://www.gnu.org/software/vc-dwim/")
    (synopsis "Version-control-agnostic ChangeLog diff and commit tool")
    (description
     "The vc-dwim package contains two tools, \"vc-dwim\" and \"vc-chlog\".
vc-dwim is a tool that simplifies the task of maintaining a ChangeLog and
using version control at the same time, for example by printing a reminder
when a file change has been described in the ChangeLog but the file has not
been added to the VC.  vc-chlog scans changed files and generates
standards-compliant ChangeLog entries based on the changes that it detects.")
    (license license:gpl3+)))

(define-public diffstat
  (package
    (name "diffstat")
    (version "1.65")
    (source (origin
              (method url-fetch)
              (uri
               (list
                 (string-append "ftp://invisible-island.net/diffstat/"
                                "diffstat-" version ".tgz")
                 (string-append "http://invisible-mirror.net/archives/diffstat/"
                                "diffstat-" version ".tgz")))
              (sha256
               (base32
                "12m2aysq6syw83bn4gqhpm284a2ran8w6m8pja2wvsvdj8j79wlc"))))
    (build-system gnu-build-system)
    (home-page "https://invisible-island.net/diffstat/")
    (synopsis "Make histograms from the output of @command{diff}")
    (description
     "Diffstat reads the output of @command{diff} and displays a histogram of
the insertions, deletions, and modifications per file.  It is useful for
reviewing large, complex patch files.")
    (license (license:x11-style "file://COPYING"))))

(define-public cssc
  (package
    (name "cssc")
    (version "1.4.1")
    (source (origin
              (method url-fetch)
              (uri (string-append "mirror://gnu/" name "/CSSC-"
                                  version ".tar.gz"))
              (sha256
               (base32
                "1vsisqq573xjr2qpn19iwmpqgl3mq03m790akpa4rvj60b4d1gni"))))
    (build-system gnu-build-system)
    (arguments
     `(#:phases
       (modify-phases %standard-phases
         (add-before 'check 'precheck
           (lambda _
             (begin
               (substitute* "tests/common/test-common"
                 (("/bin/pwd") (which "pwd")))

               (substitute* "tests/prt/all-512.sh"
                 (("/bin/sh") (which "sh")))

               ;; XXX: This test has no hope of passing until there is a "nogroup"
               ;; entry (or at least some group to which the guix builder does
               ;; not belong) in the /etc/group file of the build environment.
               ;; Currently we do not have such a group.  Disable this test for now.
               (substitute* "tests/Makefile"
                 (("test-delta ") ""))))))))
    ;; These are needed for the tests
    (native-inputs (list git cvs))
    (home-page "https://www.gnu.org/software/cssc/")
    (synopsis "File-based version control like SCCS")
    (description  "GNU CSSC provides a replacement for the legacy Unix source
code control system SCCS.  This allows old code still under that system to be
accessed and migrated on modern systems.")
    (license license:gpl3+)))

;; This package can unfortunately work only in -TEST mode, since Aegis
;; requires that it is installed setuid root.
(define-public aegis
  (package
    (name "aegis")
    (version "4.24")
    (source (origin
              (method url-fetch)
              (uri (string-append "mirror://sourceforge/aegis/aegis/" version
                                  "/aegis-" version ".tar.gz"))
              (sha256
               (base32
                "18s86ssarfmc4l17gbpzybca29m5wa37cbaimdji8czlcry3mcjl"))
            (patches (search-patches "aegis-perl-tempdir1.patch"
                                     "aegis-perl-tempdir2.patch"
                                     "aegis-test-fixup-1.patch"
                                     "aegis-test-fixup-2.patch"
                                     "aegis-constness-error.patch"))))
    (build-system gnu-build-system)
    (inputs
     `(("e2fsprogs" ,e2fsprogs)
       ("curl" ,curl)
       ("file" ,file)
       ("libxml2" ,libxml2)
       ("zlib" ,zlib)
       ("gettext" ,gettext-minimal)))
    (native-inputs
     (list bison
           groff
           perl
           ;; Various tests require the following:
           cvs
           flex
           cook
           subversion
           rcs
           ed))
    (arguments
     `(#:configure-flags (list "--with-no-aegis-configured"
                               "--sharedstatedir=/var/com/aegis"
                               ;; Uses the old 'throw()' specifier with 'new'
                               ;; which changed in C++11.
                               "CXXFLAGS=-std=c++03")
       #:parallel-build? #f ; There are some nasty racy rules in the Makefile.
       #:phases
       (modify-phases %standard-phases
         (add-before 'configure 'pre-conf
           (lambda _
              (substitute* (append '("configure"
                                     "etc/check-tar-gz.sh"
                                     "etc/patches.sh"
                                     "etc/test.sh"
                                     "script/aexver.in"
                                     "script/aebisect.in"
                                     "script/aeintegratq.in"
                                     "script/tkaegis.in"
                                     "script/test_funcs.in"
                                     "web/eg_oss_templ.sh"
                                     "web/webiface.html"
                                     "libaegis/getpw_cache.cc")
                                   (find-files "test" "\\.sh"))
                           (("/bin/sh") (which "sh")))
              (setenv "SH" (which "sh"))
              #t))
         (replace 'check
           (lambda _
             (let ((home (string-append (getcwd) "/my-new-home")))
               ;; Some tests need to write to $HOME.
               (mkdir home)
               (setenv "HOME" home)

               ;; This test assumes that flex has been symlinked to "lex".
               (substitute* "test/00/t0011a.sh"
                 (("type lex")  "type flex"))

               ;; XXX Disable tests that fail, for unknown reasons, ‘for now’.
               (for-each
                (lambda (test) (substitute* "Makefile"
                                 (((string-append "test/" test "\\.ES ")) "")))
                (list "00/t0011a"
                      "00/t0049a"
                      "01/t0196a"))

               ;; The author decided to call the check rule "sure".
               (invoke "make" "sure")))))))
    (home-page "https://sourceforge.net/projects/aegis/")
    (synopsis "Project change supervisor")
    (description "Aegis is a project change supervisor, and performs some of
the Software Configuration Management needed in a CASE environment.  Aegis
provides a framework within which a team of developers may work on many
changes to a program independently, and Aegis coordinates integrating these
changes back into the master source of the program, with as little disruption
as possible.  Resolution of contention for source files, a major headache for
any project with more than one developer, is one of Aegis's major functions.")
    (license license:gpl3+)))

(define-public tig
  (package
    (name "tig")
    (version "2.5.8")
    (source (origin
              (method url-fetch)
              (uri (string-append
                    "https://github.com/jonas/tig/releases/download/tig-"
                    version "/tig-" version ".tar.gz"))
              (sha256
               (base32
                "14b38200bmwvi3030hqnwdsp34854ck3bzncj0wlljnpmr10l3mp"))
              (modules '((guix build utils)))
              (snippet
               '(begin
                  ;; TODO: Delete and rebuild doc/*.(1|5|7).
                  (for-each delete-file (find-files "doc" "\\.html$"))))))
    (build-system gnu-build-system)
    (native-inputs
     (list asciidoc xmlto))
    (inputs
     (list ncurses readline))
    (arguments
     `(#:phases
       (modify-phases %standard-phases
         (add-after 'install 'install-doc
           (lambda _
             (invoke "make" "install-doc")))
         (add-after 'install 'install-completions
           (lambda* (#:key outputs #:allow-other-keys)
             (let* ((out   (assoc-ref outputs "out"))
                    (share (string-append out "/share")))
               (mkdir-p (string-append share "/bash-completion/completions"))
               (mkdir-p (string-append share "/zsh/site-functions"))
               (copy-file "contrib/tig-completion.bash"
                          (string-append share "/bash-completion/completions/tig"))
               (copy-file "contrib/tig-completion.zsh"
                          (string-append share "/zsh/site-functions/_tig"))))))
       #:test-target "test"
       #:tests? #f))                    ; tests require access to /dev/tty
    (home-page "https://jonas.github.io/tig/")
    (synopsis "Ncurses-based text user interface for Git")
    (description
     "Tig is an ncurses text user interface for Git, primarily intended as
a history browser.  It can also stage hunks for commit, or colorize the
output of the @code{git} command.")
    (license license:gpl2+)))

(define-public findnewest
  (package
    (name "findnewest")
    (version "0.3")
    (source
     (origin
       (method git-fetch)
       (uri (git-reference
             (url "https://github.com/0-wiz-0/findnewest")
             (commit (string-append "findnewest-" version))))
       (file-name (git-file-name name version))
       (sha256
        (base32 "1x1cbn2b27h5r0ah5xc06fkalfdci2ngrgd4wibxjw0h88h0nvgq"))))
    (build-system gnu-build-system)
    (native-inputs (list autoconf automake))
    (home-page "https://github.com/0-wiz-0/findnewest/releases")
    (synopsis "Print the modification time of the latest file")
    (description
     "Recursively find the newest file in a file tree and print its
modification time.")
    (license license:bsd-2)))

(define-public myrepos
  (package
    (name "myrepos")
    (version "1.20180726")
    (source
     (origin
       (method git-fetch)
       (uri (git-reference
             (url "git://myrepos.branchable.com/myrepos")
             (commit version)))
       (file-name (string-append name "-" version "-checkout"))
       (sha256
        (base32 "0jphw61plm8cgklja6hs639xhdvxgvjwbr6jpvjwpp7hc5gmhms5"))))
    (build-system gnu-build-system)
    (arguments
     '(#:test-target "test"
       #:make-flags (list (string-append "PREFIX=" %output))
       #:phases
       (modify-phases %standard-phases
         (delete 'configure)
         (add-after 'install 'wrap-webcheckout
           (lambda* (#:key inputs outputs #:allow-other-keys)
             (let ((out (assoc-ref outputs "out")))
               (wrap-program (string-append out "/bin/webcheckout")
                 `("PERL5LIB" ":" prefix
                   ,(map (lambda (i) (string-append (assoc-ref inputs i)
                                                    "/lib/perl5/site_perl"))
                         '("perl-encode-locale" "perl-http-date"
                           "perl-http-message" "perl-html-parser" "perl-libwww"
                           "perl-uri" "perl-try-tiny"))))
               #t))))))
    (inputs
     (list perl
           perl-encode-locale
           perl-html-parser
           perl-http-date
           perl-http-message
           perl-libwww
           perl-try-tiny
           perl-uri))
    (home-page "https://myrepos.branchable.com/")
    (synopsis "Multiple repository management tool")
    (description
     "Myrepos provides the @code{mr} command, which maps an operation (e.g.,
fetching updates) over a collection of version control repositories.  It
supports a large number of version control systems: Git, Subversion,
Mercurial, Bazaar, Darcs, CVS, Fossil, and Veracity.")
    (license license:gpl2+)))

(define-public grokmirror
  (package
    (name "grokmirror")
    (version "2.0.11")
    (source
     (origin
       (method git-fetch)
       (uri (git-reference
             (url (string-append "https://git.kernel.org/pub/scm/"
                                 "utils/grokmirror/grokmirror.git"))
             (commit (string-append "v" version))))
       (file-name (string-append name "-" version "-checkout"))
       (sha256
        (base32 "0c6nnfzzyl247r1dcjnsyx16d34nyra9ikjjhi0xzlrbiwnb0w32"))))
    (build-system python-build-system)
    (arguments
     `(#:tests? #f                      ; no test suite
       #:phases
       (modify-phases %standard-phases
         (add-after 'install 'install-manpages
           (lambda* (#:key outputs #:allow-other-keys)
             (let* ((man (string-append (assoc-ref outputs "out")
                                        "/man/man1/")))
               (mkdir-p man)
               (for-each (lambda (file) (install-file file man))
                         (find-files "." "\\.1$"))))))))
    (propagated-inputs
     (list python-packaging python-requests))
    (home-page
     "https://git.kernel.org/pub/scm/utils/grokmirror/grokmirror.git")
    (synopsis "Framework to smartly mirror git repositories")
    (description "Grokmirror enables replicating large git repository
collections efficiently.  Mirrors decide to clone and update repositories
based on a manifest file published by servers.")
    (license license:gpl3+)))

(define-public patatt
  (package
    (name "patatt")
    (version "0.4.9")
    (source
     (origin
       (method url-fetch)
       (uri (pypi-uri "patatt" version))
       (sha256
        (base32 "0fpbkmdlnz9s1lakw11jlrzpz4mb6f4dksdiir9g1ppq0g34sy58"))))
    (build-system python-build-system)
    (arguments '(#:tests? #f))          ; No tests.
    (propagated-inputs
     (list python-pynacl))
    (home-page "https://git.kernel.org/pub/scm/utils/patatt/patatt.git")
    (synopsis "Tool for cryptographic patch attestation")
    (description "This utility provides end-to-end cryptographic attestation
of patches sent via mail.  It does so by adapting the DKIM email signature
standard to include cryptographic signatures via the X-Developer-Signature
email header.")
    (license license:expat-0)))

(define-public b4
  (package
    (name "b4")
    (version "0.8.0")
    (source
     (origin
       (method url-fetch)
       (uri (pypi-uri "b4" version))
       (sha256
        (base32 "115ysciq15sxc8fd9hf7p0f4wnd5xapcfkmq8g33y1c8nbdxclbx"))))
    (build-system python-build-system)
    (arguments
     (list #:tests? #f                  ;no tests
           #:phases
           #~(modify-phases %standard-phases
               ;; XXX: dnspython attempts to read /etc/resolv.conf when loading
               ;; resolver.py, which breaks the sanity check in dependent
               ;; packages.  This should rather be fixed in dnspython.
               (delete 'sanity-check))))
    (inputs
     (list python-dkimpy python-dnspython python-requests))
    (propagated-inputs
     (list patatt))
    (home-page "https://git.kernel.org/pub/scm/utils/b4/b4.git")
    (synopsis "Tool for working with patches in public-inbox archives")
    (description
     "The @code{b4} command is designed to make it easier to participate in
patch-based workflows for projects that have public-inbox archives.

Features include:
@itemize
@item downloading a thread's mbox given a message ID
@item processing an mbox so that is ready to be fed to @code{git-am}
@item creating templated replies for processed patches and pull requests
@item submitting cryptographic attestation for patches.
@end itemize")
    (license license:gpl2+)))

(define-public git-annex-remote-rclone
  (package
    (name "git-annex-remote-rclone")
    (version "0.6")
    (source
     (origin
       (method git-fetch)
       (uri (git-reference
             (url "https://github.com/DanielDent/git-annex-remote-rclone")
             (commit (string-append "v" version))))
       (file-name (git-file-name name version))
       (sha256
        (base32
         "0j0hlxji8d974fq7zd4xc02n0jpi31ylhxc7z4zp8iiwad5mkpxp"))))
    (build-system trivial-build-system)
    (arguments
     `(#:modules ((guix build utils))
       #:builder
       (begin
         (use-modules (guix build utils))
         (let ((bash (search-input-file %build-inputs "/bin/bash"))
               (rclone (search-input-file %build-inputs "/bin/rclone")))
           (copy-file (string-append (assoc-ref %build-inputs "source")
                                     "/git-annex-remote-rclone")
                      "git-annex-remote-rclone")
           (substitute* "git-annex-remote-rclone"
             (("/bin/bash") bash)
             (("runcmd rclone") (string-append "runcmd " rclone)))
           (install-file "git-annex-remote-rclone"
                         (string-append %output "/bin"))
           #t))))
    (inputs
     (list bash rclone))
    (home-page "https://github.com/DanielDent/git-annex-remote-rclone")
    (synopsis "Use rclone-supported cloud storage providers with git-annex")
    (description "This wrapper around rclone makes any destination supported
by rclone usable with git-annex.")
    (license license:gpl3+)))

(define-public fossil
  (package
    (name "fossil")
    (version "2.20")
    (source
     (origin
       (method url-fetch)
       (uri (string-append
             "https://www.fossil-scm.org/home/tarball/"
             "210e89a0597f225f49722b096cf5563bf193e920e02a9bd38503a906deacd416"
             "/fossil-src-" version ".tar.gz"))
       ;; XXX: Currently the above hash must be manually updated.
       (sha256
        (base32 "08g7img88n2nwcdkpzmg4aqbp2iy40nllgas53502dspm97ym4h8"))
       (modules '((guix build utils)))
       (snippet
        '(delete-file-recursively "compat"))))
    (build-system gnu-build-system)
    (native-inputs
     (list tcl                          ;for configuration only
           which                        ;for tests only
           ed))                         ;ditto
    (inputs
     (list openssl zlib sqlite))
    (arguments
     `(#:configure-flags (list "--with-openssl=auto"
                               "--disable-internal-sqlite")
       #:test-target "test"
       #:phases (modify-phases %standard-phases
                  (add-after 'patch-source-shebangs 'patch-sh
                    (lambda _
                      (substitute* '("auto.def")
                        (("/bin/sh") (which "sh")))))
                  (replace 'configure
                    (lambda* (#:key outputs (configure-flags '())
                              #:allow-other-keys)
                      ;; The 'configure' script is not an autoconf script and
                      ;; chokes on unrecognized options.
                      (apply invoke
                             "./configure"
                             (string-append "--prefix="
                                            (assoc-ref outputs "out"))
                             configure-flags)))
                  (add-before 'check 'test-setup
                    (lambda _
                      (setenv "USER" "guix")
                      (setenv "TZ" "UTC"))))))
    (home-page "https://fossil-scm.org")
    (synopsis "Software configuration management system")
    (description
     "Fossil is a distributed source control management system which supports
access and administration over HTTP CGI or via a built-in HTTP server.  It has
a built-in wiki, built-in file browsing, built-in tickets system, etc.")
    (properties
     '((release-monitoring-url
        . "https://fossil-scm.org/home/uv/latest-release.md")))
    (license (list license:public-domain        ;src/miniz.c, src/shell.c
                   license:bsd-2))))

(define-public stagit
  (package
    (name "stagit")
    (version "1.0")
    (source (origin
              (method git-fetch)
              (uri (git-reference
                     (url "git://git.codemadness.org/stagit")
                     (commit version)))
              (file-name (git-file-name name version))
              (sha256
               (base32
                "0j2242vx5pbwdv79gcjxdbrwii48qphr8gk1lk7szj2irxdql171"))))
    (build-system gnu-build-system)
    (arguments
     `(#:tests? #f ; No tests
       #:make-flags (list (string-append "CC=" ,(cc-for-target))
                          (string-append "PREFIX=" %output))
       #:phases
       (modify-phases %standard-phases
         (delete 'configure)))) ; No configure script
    (inputs
     (list libgit2))
    (home-page "https://git.codemadness.org/stagit/")
    (synopsis "Static git page generator")
    (description "Stagit creates static pages for git repositories, the results can
be served with a HTTP file server of your choice.")
    (license license:expat)))

(define-public gource
  (package
    (name "gource")
    (version "0.51")
    (source (origin
              (method url-fetch)
              (uri (string-append
                    "https://github.com/acaudwell/Gource/releases/download"
                    "/gource-" version "/gource-" version ".tar.gz"))
              (sha256
               (base32
                "16p7b1x4r0915w883lp374jcdqqja37fnb7m8vnsfnl2n64gi8qr"))))
    (build-system gnu-build-system)
    (arguments
     `(#:configure-flags
       (list (string-append "--with-boost-libdir="
                            (assoc-ref %build-inputs "boost")
                            "/lib"))))
    (native-inputs
     (list pkg-config))
    (inputs
     (list boost
           ftgl
           glew
           glm
           glu
           libpng
           mesa
           pcre
           (sdl-union (list sdl2 sdl2-image))))
    (home-page "https://gource.io/")
    (synopsis "3D visualisation tool for source control repositories")
    (description "@code{gource} provides a software version control
visualization.  The repository is displayed as a tree where the root of the
repository is the centre, directories are branches and files are leaves.
Contributors to the source code appear and disappear as they contribute to
specific files and directories.")
    (license license:gpl3+)))

(define-public src
  (package
    (name "src")
    (version "1.31")
    (source (origin
              (method url-fetch)
              (uri (string-append
                    "http://www.catb.org/~esr/src/src-" version ".tar.gz"))
              (sha256
               (base32
                "1p8f5xc6k4jrli3iimi64ng11c246qqwsw9bqrrqkrmhvqdh4kcv"))))
    (build-system gnu-build-system)
    (arguments
     '(#:make-flags
       (list (string-append "prefix=" (assoc-ref %outputs "out")))
       #:phases
       (modify-phases %standard-phases
         (delete 'configure)            ; no 'configure' script
         (add-after 'install 'wrap-program
           (lambda* (#:key inputs outputs #:allow-other-keys)
             (let* ((out  (assoc-ref outputs "out"))
                    (prog (string-append out "/bin/src"))
                    (rcs  (assoc-ref inputs "rcs")))
               (wrap-program prog
                 `("PATH" ":" prefix (,(string-append rcs "/bin"))))
               #t)))
         (replace 'check
           (lambda _
             (setenv "HOME" (getenv "TMPDIR"))
             (invoke "git" "config" "--global" "user.name" "guix")
             (invoke "git" "config" "--global" "user.email" "guix")
             (invoke "./srctest"))))))
    (native-inputs
     ;; For testing.
     (list git perl))
    (inputs
     `(("cssc" ,cssc)
       ("python" ,python-wrapper)
       ("rcs" ,rcs)))
    (synopsis "Simple revision control")
    (home-page "http://www.catb.org/~esr/src/")
    (description
     "SRC (or src) is simple revision control, a version-control system for
single-file projects by solo developers and authors.  It modernizes the
venerable RCS, hence the anagrammatic acronym.  The design is tuned for use
cases like all those little scripts in your @file{~/bin} directory, or a
directory full of HOWTOs.")
    (license license:bsd-2)))

(define-public git-when-merged
  ;; Use an unreleased version to get a PY3 compatibility fix.
  (let ((commit "ab6af7865a0ba55ba364a6c507e0be6f84f31c6d"))
    (package
      (name "git-when-merged")
      (version (string-append "1.2.0-" (string-take commit 7)))
      (source (origin
                (method git-fetch)
                (uri (git-reference
                      (url "https://github.com/mhagger/git-when-merged/")
                      (commit commit)))
                (file-name (git-file-name name version))
                (sha256
                 (base32
                  "0iyk2psf97bc9h43m89p3xjmm79fsx99i7px29g4lcnmdy5kmz0p"))))
      (build-system gnu-build-system)
      (arguments
       `(#:tests? #f                    ; there are no tests
         #:phases
         (modify-phases %standard-phases
           (delete 'configure)
           (delete 'build)
           (replace 'install
             (lambda* (#:key outputs #:allow-other-keys)
               (install-file "bin/git-when-merged"
                             (string-append (assoc-ref outputs "out")
                                            "/bin"))
               #t))
           (add-before 'install 'patch-git
             (lambda* (#:key inputs #:allow-other-keys)
               (let ((git (search-input-file inputs "/bin/git")))
                 (substitute* "bin/git-when-merged"
                   (("'git'") (string-append "'" git "'")))
                 #t)))
           (add-after 'install 'wrap-script
             (lambda* (#:key outputs #:allow-other-keys)
               (wrap-program (string-append (assoc-ref outputs "out")
                                            "/bin/git-when-merged")
                 `("GUIX_PYTHONPATH" ":" prefix (,(getenv "GUIX_PYTHONPATH"))))
               #t)))))
      (inputs
       `(("git" ,git)
         ("python" ,python-wrapper)))
      (home-page "https://github.com/mhagger/git-when-merged")
      (synopsis "Determine when a commit was merged into a Git branch")
      (description "This Git extension defines a subcommand,
@code{when-merged}, whose core operation is to find the merge that brought a
given commit into the specified ref(s).  It has various options that control
how information about the merge is displayed.")
      (license license:gpl2+))))

(define-public git-imerge
  (package
    (name "git-imerge")
    (version "1.1.0")
    (source
     (origin
       (method git-fetch)
       (uri (git-reference
             (url "https://github.com/mhagger/git-imerge")
             (commit (string-append "v" version))))
       (file-name (git-file-name name version))
       (sha256
        (base32 "0vi1w3f0yk4gqhxj2hzqafqq28rihyhyfnp8x7xzib96j2si14a4"))))
    (build-system gnu-build-system)
    (arguments
     `(#:tests? #f                      ; only manual test scripts
       #:make-flags (list (string-append "DESTDIR=" %output)
                          "PREFIX=")
       #:phases
       (modify-phases %standard-phases
         (delete 'configure)
         (add-before 'install 'patch-git
           (lambda* (#:key inputs #:allow-other-keys)
             (let ((git (search-input-file inputs "/bin/git")))
               (substitute* "git-imerge"
                 (("'git'") (string-append "'" git "'")))
               #t)))
         (add-after 'install 'wrap-script
           (lambda* (#:key outputs #:allow-other-keys)
             (wrap-program (string-append (assoc-ref outputs "out")
                                          "/bin/git-imerge")
               `("GUIX_PYTHONPATH" ":" prefix (,(getenv "GUIX_PYTHONPATH"))))
             #t)))))
    (inputs
     `(("git" ,git)
       ("python" ,python-wrapper)))
    (home-page "https://github.com/mhagger/git-imerge")
    (synopsis "Incremental merge for Git")
    (description "This Git extension defines a subcommand, @code{imerge},
which performs an incremental merge between two branches.  Its two primary
design goals are to reduce the pain of resolving merge conflicts by finding
the smallest possible conflicts and to allow a merge to be saved, tested,
interrupted, published, and collaborated on while in progress.")
    (license license:gpl2+)))

(define-public go-github-com-git-lfs-pktline
  (let ((commit "06e9096e28253ba5c7825cbba43f469e4efd10f0")
        (revision "0"))
    (package
      (name "go-github-com-git-lfs-pktline")
      (version (git-version "0.0.0" revision commit))
      (source
       (origin
         (method git-fetch)
         (uri
          (git-reference
           (url "https://github.com/git-lfs/pktline")
           (commit commit)))
         (file-name (git-file-name name version))
         (sha256
          (base32 "02sn3v8vrl7qjnagbnrbrjnyjvzq8cwkxmc922zyc9b2hg187kpz"))))
      (build-system go-build-system)
      (arguments `(#:import-path "github.com/git-lfs/pktline"))
      (propagated-inputs (list go-github-com-stretchr-testify
                               go-github-com-pmezard-go-difflib
                               go-github-com-davecgh-go-spew))
      (home-page "https://github.com/git-lfs/pktline")
      (synopsis "Git pkt-line Go toolkit")
      (description "This package is a Go language toolkit for reading and
writing files using the Git pkt-line format used in various Git operations.")
(license license:expat))))

(define-public go-github-com-git-lfs-wildmatch-v2
  (package
    (name "go-github-com-git-lfs-wildmatch-v2")
    (version "2.0.1")
    (source (origin
              (method git-fetch)
              (uri (git-reference
                    (url "https://github.com/git-lfs/wildmatch")
                    (commit (string-append "v" version))))
              (file-name (git-file-name name version))
              (sha256
               (base32
                "0yg6d77d5l6v7cd8vr00y68z9aqb8qs4lidv0hkqh4fvz0ggvpln"))))
    (build-system go-build-system)
    (arguments
     '(#:import-path "github.com/git-lfs/wildmatch/v2"))
    (home-page "https://github.com/git-lfs/wildmatch")
    (synopsis "Go implementation of Git's wildmatch")
    (description
     "This package is an implementation of Git's wildmatch.c-style pattern
matching.")
    (license license:expat)))

(define-public go-github-com-git-lfs-gitobj-v2
  (package
    (name "go-github-com-git-lfs-gitobj-v2")
    (version "2.1.1")
    (source (origin
              (method git-fetch)
              (uri (git-reference
                    (url "https://github.com/git-lfs/gitobj")
                    (commit (string-append "v" version))))
              (file-name (git-file-name name version))
              (sha256
               (base32
                "1sd7y4xbx00js1g2az4nq8g5lvsm4d7nqr3v4kxy8fxrfzdm63j9"))))
    (build-system go-build-system)
    (arguments
     '(#:import-path "github.com/git-lfs/gitobj/v2"))
    (propagated-inputs (list go-github-com-stretchr-testify
                             go-github-com-pmezard-go-difflib
                             go-github-com-davecgh-go-spew))
    (home-page "https://github.com/git-lfs/gitobj")
    (synopsis "Read and write git objects")
    (description
     "This package reads and writes loose and packed (objects found in git
packfiles) Git objects.  It uses the pack package to search pack index files
and locate the corresponding delta-base chain in the appropriate pack file.
If gitobj can't find a loose object with the appropriate SHA-1, it will search
the repository's packfile(s) instead.  If it finds an object in a packfile, it
will reconstruct the object along its delta-base chain and return it.")
    (license license:expat)))

(define-public git-lfs
  (package
    (name "git-lfs")
    (version "3.3.0")
    (source (origin
              (method git-fetch)
              (uri (git-reference
                    (url "https://github.com/git-lfs/git-lfs")
                    (commit (string-append "v" version))))
              (file-name (git-file-name name version))
              (sha256
               (base32
                "1g268pplld04b9myhlrwc4fd8r1hvfyya5ja8wr558rar3pgsp5g"))))
    (build-system go-build-system)
    (arguments
     (list
      #:import-path "github.com/git-lfs/git-lfs"
      #:install-source? #f
      #:phases
      #~(modify-phases %standard-phases
          (add-after 'unpack 'fix-embed-x-net
            (lambda _
              (delete-file-recursively "src/golang.org/x/net/publicsuffix/data")
              (copy-recursively
               #$(file-append (this-package-input "go-golang-org-x-net")
                              "/src/golang.org/x/net/publicsuffix/data")
               "src/golang.org/x/net/publicsuffix/data")))
          (add-before 'build 'man-gen
            ;; Without this, the binary generated in 'build
            ;; phase won't have any embedded usage-text.
            (lambda _
              (with-directory-excursion "src/github.com/git-lfs/git-lfs"
                (invoke "make" "mangen"))))
          (add-after 'build 'build-man-pages
            (lambda _
              (with-directory-excursion "src/github.com/git-lfs/git-lfs"
                (invoke "make" "man"))))
          (add-after 'install 'install-man-pages
            (lambda* (#:key outputs #:allow-other-keys)
              (with-directory-excursion "src/github.com/git-lfs/git-lfs/man"
                (for-each
                 (lambda (manpage)
                   (install-file manpage
                                 (string-append #$output "/share/man/man1")))
                 (find-files "." "^git-lfs.*\\.1$"))))))))
    ;; make `ronn` available during build for man page generation
    (native-inputs (list ronn-ng git-minimal ruby-asciidoctor))
    (propagated-inputs
     (list go-github-com-xeipuuv-gojsonschema
           go-github-com-xeipuuv-gojsonreference
           go-github-com-xeipuuv-gojsonpointer
           go-golang-org-x-net
           go-golang.org-x-sync-semaphore
           go-github-com-ssgelm-cookiejarparser
           go-github-com-rubyist-tracerx
           go-github-com-olekukonko-ts
           go-github-com-leonelquinteros-gotext
           go-github-com-git-lfs-wildmatch-v2
           go-github-com-git-lfs-pktline
           go-github-com-git-lfs-go-netrc
           go-github-com-git-lfs-gitobj-v2
           go-github-com-dpotapov-go-spnego
           go-github-com-avast-retry-go
           go-github-com-mattn-go-isatty
           go-github-com-pkg-errors
           go-github-com-spf13-cobra))
    (home-page "https://git-lfs.github.com/")
    (synopsis "Git extension for versioning large files")
    (description
     "Git Large File Storage (LFS) replaces large files such as audio samples,
videos, datasets, and graphics with text pointers inside Git, while storing the
file contents on a remote server.")
    (license license:expat)))

(define-public lfs-s3
  (package
    (name "lfs-s3")
    (version "0.1")
    (source (origin
              (method git-fetch)
              (uri (git-reference
                    (url "https://git.sr.ht/~ngraves/lfs-s3")
                    (commit version)))
              (file-name (git-file-name name version))
              (sha256
               (base32
                "0nkxivb356f1zjlj34px601zy86w4398db9s2ivd178jp4v69raw"))))
    (build-system go-build-system)
    (arguments
     (list
      #:import-path "git.sr.ht/~ngraves/lfs-s3"))
    (inputs (list git-lfs))
    (propagated-inputs
     (list go-github-com-aws-aws-sdk-go-v2
           go-github-com-aws-aws-sdk-go-v2-config
           go-github-com-aws-aws-sdk-go-v2-feature-s3-manager
           go-github-com-aws-aws-sdk-go-v2-service-s3
           go-github-com-spf13-cobra))
    (home-page "https://git.sr.ht/~ngraves/lfs-s3/")
    (synopsis "Git extension for versioning large files in S3")
    (description
     "This package provides a custom transfer agent for Git LFS, allowing
plain S3 bucket usage as remote storage for media files. This package uses a
standalone agent instead of a server.")
    (license license:expat)))

(define-public git-open
  (package
    (name "git-open")
    (version "2.1.0")
    (source
     (origin
       (method git-fetch)
       (uri (git-reference
             (url "https://github.com/paulirish/git-open")
             (commit (string-append "v" version))))
       (file-name (git-file-name name version))
       (sha256
        (base32 "11n46bngvca5wbdbfcxzjhjbfdbad7sgf7h9gf956cb1q8swsdm0"))))
    (build-system copy-build-system)
    (inputs
     (list xdg-utils))
    (arguments
     `(#:phases
       (modify-phases %standard-phases
         (add-after 'install 'wrap-program
           (lambda* (#:key outputs inputs #:allow-other-keys)
             (let ((out (assoc-ref outputs "out"))
                   (xdg-utils (assoc-ref inputs "xdg-utils")))
               (wrap-program (string-append out "/bin/git-open")
                 `("PATH" ":" prefix (,(string-append xdg-utils "/bin"))))))))
       #:install-plan
       '(("git-open" "bin/git-open"))))
    (home-page "https://github.com/paulirish/git-open")
    (synopsis "Open a Git repository's homepage from the command-line")
    (description
     "@code{git open} opens the repository's website from the command-line,
guessing the URL pattern from the @code{origin} remote.")
    (license license:expat)))

(define-public tla
  (package
    (name "gnu-arch")
    (version "1.3.5")
    (source (origin
              (method url-fetch)
              (uri (string-append "https://ftp.gnu.org/old-gnu/gnu-arch/"
                                  "tla-" version ".tar.gz"))
              (sha256
               (base32
                "01mfzj1i6p4s8191cgd5850hds1zls88hkf9rb6qx1vqjv585aj0"))
              (modules '((guix build utils)))
              (snippet
               '(begin
                  ;; In tar 1.32, '--preserve' is ambiguous and leads to an
                  ;; error, so address that.
                  (substitute* "src/tla/libarch/archive.c"
                    (("\"--preserve\"")
                     "\"--preserve-permissions\""))
                  #t))))
    (build-system gnu-build-system)
    (arguments
     '(#:phases (modify-phases %standard-phases
                  (replace 'configure
                    (lambda* (#:key inputs outputs #:allow-other-keys)
                      (let ((out (assoc-ref outputs "out")))
                        (chdir "src")

                        (mkdir "=build")
                        (chdir "=build")

                        ;; For libneon's 'configure' script.
                        ;; XXX: There's a bundled copy of neon.
                        (setenv "CONFIG_SHELL" (which "sh"))

                        (invoke "../configure" "--prefix" out
                                "--config-shell" (which "sh")
                                "--with-posix-shell" (which "sh")
                                "--with-cc" "gcc")))))


       ;; There are build failures when building in parallel.
       #:parallel-build? #f
       #:parallel-tests? #f

       #:test-target "test"))
    (native-inputs
     (list which))
    (synopsis "Historical distributed version-control system")
    (description
     "GNU Arch, aka. @code{tla}, was one of the first free distributed
version-control systems (DVCS).  It saw its last release in 2006.  This
package is provided for users who need to recover @code{tla} repositories and
for historians.")
    (home-page "https://www.gnu.org/software/gnu-arch/")
    (license license:gpl2)))                      ;version 2 only

(define-public diff-so-fancy
  (package
    (name "diff-so-fancy")
    (version "1.4.3")
    (source (origin
              (method git-fetch)
              (uri (git-reference
                    (url "https://github.com/so-fancy/diff-so-fancy")
                    (commit (string-append "v" version))))
              (file-name (git-file-name name version))
              (sha256
               (base32
                "11vkq5njjlvjipic7db44ga875n61drszw1qrdzwxmmfmnz425zz"))))
    (inputs
     (list perl ncurses))
    (build-system copy-build-system)
    (arguments
     '(#:phases
       (modify-phases %standard-phases
         (add-after 'unpack 'patch-lib-path
           (lambda* (#:key outputs #:allow-other-keys)
             (let ((lib (string-append (assoc-ref outputs "out") "/lib")))
               (substitute* "diff-so-fancy"
                 (("use lib.*$")
                  (string-append "use lib '" lib "';\n"))))))
         (add-after 'install 'symlink-executable
           (lambda* (#:key outputs inputs #:allow-other-keys)
             (let ((out (assoc-ref outputs "out"))
                   (ncurses (assoc-ref inputs "ncurses"))
                   (perl (assoc-ref inputs "perl")))
               (wrap-program (string-append out "/bin/diff-so-fancy")
                 `("PATH" ":" prefix (,(string-append ncurses "/bin")
                                      ,(string-append perl "/bin"))))))))
       #:install-plan
       '(("lib" "lib")
         ("diff-so-fancy" "bin/"))))
    (home-page "https://github.com/so-fancy/diff-so-fancy")
    (synopsis "Makes diffs more human friendly and readable")
    (description
     "@code{diff-so-fancy} strives to make your diffs human readable instead
of machine readable.  This helps improve code quality and helps you spot
defects faster.")
    (license license:expat)))

(define-public go-github-go-git
  (package
    (name "go-github-go-git")
    (version "5.1.0")
    (source (origin
              (method git-fetch)
              (uri (git-reference
                    (url "https://github.com/go-git/go-git")
                    (commit (string-append "v" version))))
              (file-name (git-file-name name version))
              (sha256
               (base32
                "1vkcmhh2qq8c38sjbnzf0wvg2rzr19wssaq177bsvrjwj1xz1qbs"))))
    (build-system go-build-system)
    (arguments
     `(#:tests? #f ;requires network connection
       #:import-path "github.com/go-git/go-git/v5"
       #:phases
       (modify-phases %standard-phases
         (add-before 'build 'setup
           (lambda* (#:key inputs #:allow-other-keys)
             (let* ((git (assoc-ref inputs "git"))
                    (git-bin (string-append (assoc-ref inputs "git") "/bin"))
                    (git-exe (string-append git-bin "/git")))
               (setenv "GIT_DIST_PATH=" git)
               (setenv "GIT_EXEC_PATH=" git-bin)
               (setenv "HOME" (getcwd))
               (invoke git-exe "config" "--global" "user.email" "gha@example.com")
               (invoke git-exe "config" "--global" "user.name" "GitHub Actions")
               #t)
             #t)))))
    (native-inputs
     `(("go-github-com-emirpasic-gods" ,go-github-com-emirpasic-gods)
       ("go-github-com-go-git-gcfg" ,go-github-com-go-git-gcfg)
       ("go-github-com-go-git-go-billy" ,go-github-com-go-git-go-billy)
       ("go-github-com-imdario-mergo" ,go-github-com-imdario-mergo)
       ("go-github-com-jbenet-go-context" ,go-github-com-jbenet-go-context)
       ("go-github-com-kevinburke-ssh-config" ,go-github-com-kevinburke-ssh-config)
       ("go-github-com-mitchellh-go-homedir" ,go-github-com-mitchellh-go-homedir)
       ("go-github-com-sergi-go-diff" ,go-github-com-sergi-go-diff)
       ("go-github-com-xanzy-ssh-agentf" ,go-github-com-xanzy-ssh-agent)
       ("go-golang-org-x-crypto" ,go-golang-org-x-crypto)
       ("go-golang-org-x-net" ,go-golang-org-x-net)
       ("go-gopkg-in-warnings" ,go-gopkg-in-warnings)
       ("go-github-com-go-git-go-git-fixtures" ,go-github-com-go-git-go-git-fixtures)
       ("go-gopkg-in-check-v1" ,go-gopkg-in-check-v1)
       ("go-github-com-alcortesm-tgz" ,go-github-com-alcortesm-tgz)
       ("go-golang-org-x-text" ,go-golang-org-x-text)
       ("git" ,git)))
    (home-page "https://github.com/go-git/")
    (synopsis "Git implementation library")
    (description "This package provides a Git implementation library.")
    (license license:asl2.0)))

(define-public gita
  (let ((commit "e41b504dca90a25e9be27f296da7ce22e5782893")
        (revision "1"))
    (package
      (name "gita")
      (version (git-version "0.12.9" revision commit))
      (source (origin
                (method git-fetch)
                (uri (git-reference
                      (url "https://github.com/nosarthur/gita")
                      (commit commit)))
                (file-name (git-file-name name version))
                (sha256
                 (base32
                  "1k03zgcbhl91cgyh4k7ywyjp00y63q4bqbimncqh5b3lni8l8j5l"))))
      (build-system python-build-system)
      (native-inputs
       (list git ;for tests
             python-pytest))
      (propagated-inputs
       (list python-pyyaml))
      (arguments
       `(#:phases
         (modify-phases %standard-phases
           (replace 'check
             (lambda* (#:key inputs outputs #:allow-other-keys)
               (substitute* "tests/test_main.py"
                 (("'gita\\\\n'") "'source\\n'")
                 (("'gita'") "'source'"))
               (invoke (search-input-file inputs "/bin/git")
                       "init")
               (add-installed-pythonpath inputs outputs)
               (invoke (search-input-file inputs "/bin/pytest")
                       "-vv" "tests")))
           (add-after 'install 'install-shell-completions
             (lambda* (#:key outputs #:allow-other-keys)
               (let* ((out (assoc-ref outputs "out"))
                      (bash-completion (string-append out "/etc/bash_completion.d"))
                      (zsh-completion (string-append out "/etc/zsh/site-functions")))
                 (mkdir-p bash-completion)
                 (copy-file ".gita-completion.bash"
                            (string-append bash-completion "/gita"))
                 (mkdir-p zsh-completion)
                 (copy-file ".gita-completion.zsh"
                            (string-append zsh-completion "/_gita"))))))))
      (home-page "https://github.com/nosarthur/gita")
      (synopsis "Command-line tool to manage multiple Git repos")
      (description "This package provides a command-line tool to manage
multiple Git repos.

This tool does two things:
@itemize
@item display the status of multiple Git repos such as branch, modification,
commit message side by side
@item (batch) delegate Git commands/aliases from any working directory
@end itemize

If several repos are related, it helps to see their status together.")
      (license license:expat))))

(define-public ghq
  (package
    (name "ghq")
    (version "1.1.7")
    (home-page "https://github.com/x-motemen/ghq")
    (source (origin
              (method git-fetch)
              (uri (git-reference
                    (url home-page)
                    (commit (string-append "v" version))))
              (file-name (git-file-name name version))
              (sha256
               (base32
                "155sfmhmh4ia3iinm1s8fk7fxyn5dxdryad9xkbg7mr3i3ikqjwh"))))
    (build-system go-build-system)
    (arguments
     '(#:install-source? #f
       #:import-path "github.com/x-motemen/ghq"
       #:phases
       (modify-phases %standard-phases
         (add-after 'install 'install-completions
           (lambda* (#:key outputs import-path #:allow-other-keys)
             (let* ((out (assoc-ref outputs "out"))
                    (bash-completion (string-append out "/etc/bash_completion.d"))
                    (zsh-completion (string-append out "/share/zsh/site-functions")))
               (with-directory-excursion (string-append "src/" import-path)
                 (mkdir-p bash-completion)
                 (copy-file "misc/bash/_ghq"
                            (string-append bash-completion "/ghq"))
                 (mkdir-p zsh-completion)
                 (copy-file "misc/zsh/_ghq"
                            (string-append zsh-completion "/_ghq"))))
             #t)))))
    (native-inputs
     `(("git" ,git-minimal)))
    (inputs
     `(("github.com/songmu/gitconfig" ,go-github-com-songmu-gitconfig)
       ("github.com/mattn/go-isatty" ,go-github-com-mattn-go-isatty)
       ("github.com/motemen/go-colorine" ,go-github-com-motemen-go-colorine)
       ("github.com/saracen/walker" ,go-github-com-saracen-walker)
       ("github.com/urfave/cli/v2" ,go-github-com-urfave-cli-v2)
       ("golang.org/x/net/html" ,go-golang-org-x-net-html)
       ("golang.org/x/sync/errgroup" ,go-golang.org-x-sync-errgroup)))
    (synopsis "Manage remote repository clones")
    (description
     "@code{ghq} provides a way to organize remote repository clones, like
@code{go get} does.  When you clone a remote repository by @code{ghq get}, ghq
makes a directory under a specific root directory (by default @file{~/ghq})
using the remote repository URL's host and path.")
    (license license:expat)))

(define-public tkrev
  (package
    (name "tkrev")
    (version "9.4.1")
    (source
     (origin
       (method url-fetch)
       (uri (string-append
             "mirror://sourceforge/tkcvs/tkrev_" version ".tar.gz"))
       (sha256
        (base32 "0bpfbhkngzmwy476mfc69mkd94l0m2wxznrn0qzd81s450yxjw2q"))))
    (build-system gnu-build-system)
    (arguments
     `(#:phases
       (modify-phases %standard-phases
         (delete 'configure)
         (delete 'build)
         (replace 'install
           (lambda* (#:key outputs #:allow-other-keys)
             (let* ((out (assoc-ref outputs "out"))
                    (bin (string-append out "/bin")))
               (invoke "wish" "doinstall.tcl" "-nox" out)
               (install-file "contrib/tkdirdiff" bin))))
         (add-after 'install 'wrap-programs
           (lambda* (#:key outputs #:allow-other-keys)
             (for-each
               (lambda (file)
                 (wrap-program (string-append (assoc-ref outputs "out")
                                              "/bin/" file)
                   `("PATH" ":" prefix (,(dirname (which "wish"))))))
               '("tkdiff"
                 "tkdirdiff"
                 "tkrev")))))
       #:tests? #f))
    (inputs
     (list tk))
    (home-page "https://tkcvs.sourceforge.io")
    (synopsis "Graphical interface to CVS, Subversion, Git, and RCS")
    (description
     "TkRev (formerly TkCVS) is a Tcl/Tk-based graphical interface to the CVS,
Subversion and Git configuration management systems.  It will also help with
RCS.  It shows the status of the files in the current working directory, and
has tools for tagging, merging, checking in/out, and other user operations.
TkDiff is included for browsing and merging your changes.")
    (license license:gpl2+)))

(define-public git-filter-repo
  (package
    (name "git-filter-repo")
    (version "2.29.0")
    (source
     (origin
       ;; Use a release tarball instead of 'git-fetch' because it contains
       ;; pre-compiled man-pages which are too hard to build in this context
       ;; as it depends on Git's Makefile.
       (method url-fetch)
       (uri (string-append "https://github.com/newren/git-filter-repo/releases/"
                           "download/v" version
                           "/git-filter-repo-" version ".tar.xz"))
       (sha256
        (base32
         "00nn7k9jqrybb762486fmigsnbcn9lbvimgpfvvarz4ikdp9y9pb"))))
    (build-system copy-build-system)
    (arguments
     `(#:install-plan
       '(("git-filter-repo" "libexec/git-core/")
         ("Documentation/man1/" "share/man/man1")
         ("/" "" #:include ()))))
    (inputs (list python))                ;for the shebang
    (home-page "https://github.com/newren/git-filter-repo")
    (synopsis "Quickly rewrite Git repository history")
    (description
     "@command{git filter-repo} is a versatile tool for rewriting history,
which roughly falls into the same space of tool like git filter-branch but
with more capabilities.  @command{git filter-repo} is now recommended by the
Git project instead of @command{git filter-branch}.")
    (license (list license:expat ;; Main license.
                   license:gpl2)))) ;; For test harness.

(define-public gitlint
  (package
    (name "gitlint")
    (version "0.17.0")
    (source (origin
              (method url-fetch)
              ;; the gitlint-core pypi package contains the actual gitlint
              ;; code; the gitlint package only pulls in gitlint-core with
              ;; stricter dependency versioning
              (uri (pypi-uri "gitlint-core" version))
              (sha256
               (base32
                "14cn89biys8r7mwcdgllv371k34km9k1941ylxf53a7sxwrzsbbp"))))
    (build-system python-build-system)
    (arguments
     (list
      #:phases
      #~(modify-phases %standard-phases
          (add-before 'build 'loosen-requirements
            (lambda* (#:key inputs #:allow-other-keys)
              (substitute* "gitlint/shell.py"
                (("'git'") (string-append
                            "'"
                            (search-input-file inputs "bin/git")
                            "'"))
                ;; force using subprocess instead of sh so git does not need
                ;; to be a propagated input
                (("if USE_SH_LIB") "if False")))))))
    (inputs
     (list git python-arrow python-click python-sh))
    (home-page "https://jorisroovers.com/gitlint/")
    (synopsis "Linting Git commit messages")
    (description
     "Gitlint is a Git commit message linter written in Python: it checks your
commit messages for style.")
    (license license:expat)))

(define-public hut
  (package
    (name "hut")
    (version "0.2.0")
    (source
     (origin
       (method git-fetch)
       (uri (git-reference
             (url "https://git.sr.ht/~emersion/hut")
             (commit (string-append "v" version))))
       (file-name (git-file-name name version))
       (sha256
        (base32 "0ybngrwwmkm00dlkdhvkfcvcjhp5xzs8fh90zqr0h12ssqx9pll3"))))
    (build-system go-build-system)
    (arguments
     (list
      #:import-path "git.sr.ht/~emersion/hut"
      #:phases
      #~(modify-phases %standard-phases
          (replace 'build
            (lambda* (#:key import-path #:allow-other-keys)
              (with-directory-excursion (string-append "src/" import-path)
                ;; The flags are copied from (guix build go-build-system).
                (setenv "CGO_LDFLAGS" "-s -w")
                (invoke "make" "all" "GOFLAGS=-v -x"))))
          (replace 'install
            (lambda* (#:key import-path #:allow-other-keys)
              (with-directory-excursion (string-append "src/" import-path)
                (invoke "make" "install"
                        (string-append "PREFIX=" #$output))))))))
    (native-inputs
     (list scdoc))
    (inputs
     (list go-git-sr-ht-emersion-go-scfg
           go-git-sr-ht-emersion-gqlclient
           go-github-com-juju-ansiterm
           go-github-com-spf13-cobra
           go-golang-org-x-oauth2
           go-golang-org-x-term))
    (home-page "https://git.sr.ht/~emersion/hut")
    (synopsis "CLI tool for sr.ht")
    (description "@command{hut} is a CLI tool for
@uref{https://sr.ht/~sircmpwn/sourcehut/, sr.ht}.  It helps you interact with
sr.ht's public services:
@table @asis
@item builds
submit and manage build jobs
@item git
create, and manage git repositories and artifacts
@item hg
list Mercurial repositories
@item lists
manage mailing lists and patches
@item meta
manage PGP, and SSH keys
@item pages
publish and manage hosted websites
@item paste
create and manage pastes
@item todo
create and manage trackers, tickets
@item graphql
interact with GraphQL APIs directly
@end table")
    (license license:agpl3)))