diff options
| -rw-r--r-- | doc/guix.texi | 6 | ||||
| -rw-r--r-- | guix/scripts/gc.scm | 21 | ||||
| -rw-r--r-- | tests/guix-gc.sh | 6 |
3 files changed, 29 insertions, 4 deletions
diff --git a/doc/guix.texi b/doc/guix.texi index 2f9fcbe3bf..2345617b2e 100644 --- a/doc/guix.texi +++ b/doc/guix.texi @@ -3385,7 +3385,7 @@ deleted. The set of garbage collector roots (``GC roots'' for short) includes default user profiles; by default, the symlinks under @file{/var/guix/gcroots} represent these GC roots. New GC roots can be added with @command{guix build --root}, for example (@pxref{Invoking -guix build}). +guix build}). The @command{guix gc --list-roots} command lists them. Prior to running @code{guix gc --collect-garbage} to make space, it is often useful to remove old generations from user profiles; that way, old @@ -3451,6 +3451,10 @@ This prints nothing unless the daemon was started with @option{--cache-failures} (@pxref{Invoking guix-daemon, @option{--cache-failures}}). +@item --list-roots +List the GC roots owned by the user; when run as root, list @emph{all} the GC +roots. + @item --clear-failures Remove the specified store items from the failed-build cache. diff --git a/guix/scripts/gc.scm b/guix/scripts/gc.scm index 6f37b767ff..2606e20deb 100644 --- a/guix/scripts/gc.scm +++ b/guix/scripts/gc.scm @@ -1,5 +1,5 @@ ;;; GNU Guix --- Functional package management for GNU -;;; Copyright © 2012, 2013, 2015, 2016, 2017, 2018 Ludovic Courtès <ludo@gnu.org> +;;; Copyright © 2012, 2013, 2015, 2016, 2017, 2018, 2019 Ludovic Courtès <ludo@gnu.org> ;;; ;;; This file is part of GNU Guix. ;;; @@ -20,6 +20,7 @@ #:use-module (guix ui) #:use-module (guix scripts) #:use-module (guix store) + #:use-module (guix store roots) #:autoload (guix build syscalls) (free-disk-space) #:use-module (ice-9 match) #:use-module (ice-9 regex) @@ -49,6 +50,8 @@ Invoke the garbage collector.\n")) (display (G_ " -d, --delete attempt to delete PATHS")) (display (G_ " + --list-roots list the user's garbage collector roots")) + (display (G_ " --optimize optimize the store by deduplicating identical files")) (display (G_ " --list-dead list dead paths")) @@ -135,6 +138,10 @@ Invoke the garbage collector.\n")) (alist-cons 'verify-options options (alist-delete 'action result)))))) + (option '("list-roots") #f #f + (lambda (opt name arg result) + (alist-cons 'action 'list-roots + (alist-delete 'action result)))) (option '("list-dead") #f #f (lambda (opt name arg result) (alist-cons 'action 'list-dead @@ -205,6 +212,15 @@ Invoke the garbage collector.\n")) (info (G_ "freeing ~h MiBs~%") (/ to-free 1024. 1024.)) (collect-garbage store to-free))))) + (define (list-roots) + ;; List all the user-owned GC roots. + (let ((roots (filter (if (zero? (getuid)) (const #t) user-owned?) + (gc-roots)))) + (for-each (lambda (root) + (display root) + (newline)) + roots))) + (with-error-handling (let* ((opts (parse-options)) (store (open-connection)) @@ -238,6 +254,9 @@ Invoke the garbage collector.\n")) (else (let-values (((paths freed) (collect-garbage store))) (info (G_ "freed ~h MiBs~%") (/ freed 1024. 1024.))))))) + ((list-roots) + (assert-no-extra-arguments) + (list-roots)) ((delete) (delete-paths store (map direct-store-path paths))) ((list-references) diff --git a/tests/guix-gc.sh b/tests/guix-gc.sh index ef2d9543b7..8284287730 100644 --- a/tests/guix-gc.sh +++ b/tests/guix-gc.sh @@ -1,5 +1,5 @@ # GNU Guix --- Functional package management for GNU -# Copyright © 2013, 2015, 2017, 2018 Ludovic Courtès <ludo@gnu.org> +# Copyright © 2013, 2015, 2017, 2018, 2019 Ludovic Courtès <ludo@gnu.org> # # This file is part of GNU Guix. # @@ -34,7 +34,7 @@ unset drv unset out # For some operations, passing extra arguments is an error. -for option in "" "-C 500M" "--verify" "--optimize" +for option in "" "-C 500M" "--verify" "--optimize" "--list-roots" do if guix gc $option whatever; then false; else true; fi done @@ -69,6 +69,8 @@ guix gc --delete "$drv" drv="`guix build --root=guix-gc-root lsh -d`" test -f "$drv" && test -L guix-gc-root +guix gc --list-roots | grep "$PWD/guix-gc-root" + guix gc --list-live | grep "$drv" if guix gc --delete "$drv"; then false; else true; fi |