diff options
Diffstat (limited to 'etc')
| -rw-r--r-- | etc/disarchive-manifest.scm | 112 |
1 files changed, 112 insertions, 0 deletions
diff --git a/etc/disarchive-manifest.scm b/etc/disarchive-manifest.scm new file mode 100644 index 0000000000..5cc59f5e2a --- /dev/null +++ b/etc/disarchive-manifest.scm @@ -0,0 +1,112 @@ +;;; GNU Guix --- Functional package management for GNU +;;; Copyright © 2021 Ludovic Courtès <ludo@gnu.org> +;;; +;;; 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/>. + +;;; This file returns a manifest that builds a directory containing Disarchive +;;; metadata for all the tarballs packages refer to. + +(use-modules (srfi srfi-1) (ice-9 match) + (guix packages) (guix gexp) (guix profiles) + (guix base16) + (gnu packages)) + +(include "source-manifest.scm") + +(define (tarball-origin? origin) + (match (origin-actual-file-name origin) + (#f #f) + ((? string? file) + ;; As of version 0.2.1, Disarchive can only deal with raw tarballs and + ;; gzip-compressed tarballs. + (and (origin-hash origin) + (or (string-suffix? ".tar.gz" file) + (string-suffix? ".tgz" file) + (string-suffix? ".tar" file)))))) + +(define (origin->disarchive origin) + "Return a directory containing Disarchive metadata for ORIGIN, a tarball, or +an empty directory if ORIGIN could not be disassembled." + (define file-name + (let ((hash (origin-hash origin))) + (string-append (symbol->string (content-hash-algorithm hash)) + "/" + (bytevector->base16-string + (content-hash-value hash))))) + + (define disarchive + (specification->package "disarchive")) + + (define build + (with-imported-modules '((guix build utils)) + #~(begin + (use-modules (guix build utils) + (srfi srfi-34)) + + (define tarball + #+(upstream-origin origin)) + + (define file-name + (string-append #$output "/" #$file-name)) + + (define profile + #+(profile (content (packages->manifest (list disarchive))))) + + (mkdir-p (dirname file-name)) + (setenv "PATH" (string-append profile "/bin")) + (setenv "GUILE_LOAD_PATH" + (string-append profile "/share/guile/site/" + (effective-version))) + (setenv "GUILE_LOAD_COMPILED_PATH" + (string-append profile "/lib/guile/" (effective-version) + "/site-ccache")) + + (guard (c ((invoke-error? c) + ;; Sometimes Disarchive fails with "could not find Gzip + ;; compressor". When that happens, produce an empty + ;; directory instead of failing. + (report-invoke-error c) + (delete-file file-name))) + (with-output-to-file file-name + (lambda () + ;; Disarchive records the tarball name in its output. Thus, + ;; strip the hash from TARBALL. + (let ((short-name (strip-store-file-name tarball))) + (symlink tarball short-name) + (invoke "disarchive" "disassemble" short-name)))))))) + + (computed-file (match (origin-actual-file-name origin) + ((? string? str) (string-append str ".dis")) + (#f "anonymous-tarball.dis")) + build)) + +(define (disarchive-collection origins) + "Return a directory containing all the Disarchive metadata for ORIGINS." + (directory-union "disarchive-collection" + (filter-map (lambda (origin) + (and (tarball-origin? origin) + (origin->disarchive origin))) + origins) + #:copy? #t)) + + +;; The manifest containing Disarchive data. +(let ((origins (all-origins))) + (manifest + (list (manifest-entry + (name "disarchive-collection") + (version (length origins)) + (item (disarchive-collection origins)))))) |