diff options
Diffstat (limited to 'guix/build')
| -rw-r--r-- | guix/build/git.scm | 20 |
1 files changed, 16 insertions, 4 deletions
diff --git a/guix/build/git.scm b/guix/build/git.scm index 867cade2c4..4c69365a7b 100644 --- a/guix/build/git.scm +++ b/guix/build/git.scm @@ -1,5 +1,5 @@ ;;; GNU Guix --- Functional package management for GNU -;;; Copyright © 2014, 2016, 2019, 2023 Ludovic Courtès <ludo@gnu.org> +;;; Copyright © 2014, 2016, 2019, 2023-2024 Ludovic Courtès <ludo@gnu.org> ;;; Copyright © 2023 Maxim Cournoyer <maxim.cournoyer@gmail.com> ;;; ;;; This file is part of GNU Guix. @@ -20,7 +20,9 @@ (define-module (guix build git) #:use-module (guix build utils) #:autoload (guix build download-nar) (download-nar) - #:autoload (guix swh) (%verify-swh-certificate? swh-download) + #:autoload (guix swh) (%verify-swh-certificate? + swh-download + swh-download-directory-by-nar-hash) #:use-module (srfi srfi-34) #:use-module (ice-9 format) #:export (git-fetch @@ -91,10 +93,13 @@ fetched, recursively. Return #t on success, #f otherwise." (define* (git-fetch-with-fallback url commit directory #:key (git-command "git") + hash hash-algorithm lfs? recursive?) "Like 'git-fetch', fetch COMMIT from URL into DIRECTORY, but fall back to alternative methods when fetching from URL fails: attempt to download a nar, -and if that also fails, download from the Software Heritage archive." +and if that also fails, download from the Software Heritage archive. When +HASH and HASH-ALGORITHM are provided, they are interpreted as the nar hash of +the directory of interested and are used as its content address at SWH." (or (git-fetch url commit directory #:lfs? lfs? #:recursive? recursive? @@ -110,7 +115,14 @@ and if that also fails, download from the Software Heritage archive." (format (current-error-port) "Trying to download from Software Heritage...~%") - (swh-download url commit directory) + ;; First try to look up and download the directory corresponding + ;; to HASH: this is fundamentally more reliable than looking up + ;; COMMIT, especially when COMMIT denotes a tag. + (or (and hash hash-algorithm + (swh-download-directory-by-nar-hash hash hash-algorithm + directory)) + (swh-download url commit directory)) + (when (file-exists? (string-append directory "/.gitattributes")) ;; Perform CR/LF conversion and other changes |