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download: Add Software Heritage as a content-addressed mirror. 

* guix/download.scm (%content-addressed-mirrors): Add Software
Heritage.
This commit is contained in:
Ludovic Courtès 2018-11-13 22:26:07 +01:00
parent e921993c25
commit ee2cfdfe86
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1 changed files with 22 additions and 12 deletions
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guix/download.scm
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@ -373,8 +373,10 @@
;; procedure that takes a file name, an algorithm (symbol) and a hash
;; (bytevector), and returns a URL or #f.
;; Note: Avoid 'https' to mitigate <http://bugs.gnu.org/22774>.
;; TODO: Add more.
'(list (lambda (file algo hash)
'(begin
(use-modules (guix base32) (guix base16))
(list (lambda (file algo hash)
;; Files served by 'guix publish' are accessible under a single
;; hash algorithm.
(string-append "http://mirror.hydra.gnu.org/file/"
@ -384,7 +386,15 @@
;; 'tarballs.nixos.org' supports several algorithms.
(string-append "http://tarballs.nixos.org/"
(symbol->string algo) "/"
(bytevector->nix-base32-string hash)))))
(bytevector->nix-base32-string hash)))
(lambda (file algo hash)
;; Software Heritage usually archives VCS history rather than
;; tarballs, but tarballs are sometimes available (and can be
;; explicitly stored there.) For example, see
;; <https://archive.softwareheritage.org/api/1/content/sha256:92d0fa1c311cacefa89853bdb53c62f4110cdfda3820346b59cbd098f40f955e/>.
(string-append "http://archive.softwareheritage.org/api/1/content/"
(symbol->string algo) ":"
(bytevector->base16-string hash) "/raw/")))))
(define %content-addressed-mirror-file
;; Content-addressed mirrors stored in a file.