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import: github: Gracefully handle projects that have disappeared.

Fixes <https://bugs.gnu.org/42509>.
Reported by Alexandru-Sergiu Marton <brown121407@posteo.ro>.

* guix/import/github.scm (fetch-releases-or-tags): Use 'http-fetch'
instead of 'json-fetch', and guard against 404 errors.  Upon 404, emit a
warning and return the empty vector.
gn-latest-20200725
Ludovic Courtès 9 months ago
parent
commit
ac928d3e9e
No known key found for this signature in database GPG Key ID: 90B11993D9AEBB5
1 changed files with 17 additions and 6 deletions
  1. +17
    -6
      guix/import/github.scm

+ 17
- 6
guix/import/github.scm View File

@ -26,10 +26,13 @@
#:use-module (srfi srfi-26)
#:use-module (srfi srfi-34)
#:use-module (guix utils)
#:use-module (guix i18n)
#:use-module (guix diagnostics)
#:use-module ((guix download) #:prefix download:)
#:use-module ((guix git-download) #:prefix download:)
#:use-module (guix import utils)
#:use-module (guix import json)
#:use-module (json)
#:use-module (guix packages)
#:use-module (guix upstream)
#:use-module (guix http-client)
@ -162,12 +165,20 @@ empty list."
`((Authorization . ,(string-append "token " (%github-token))))
'())))
(match (json-fetch release-url #:headers headers)
(#()
;; We got the empty list, presumably because the user didn't use GitHub's
;; "release" mechanism, but hopefully they did use Git tags.
(json-fetch tag-url #:headers headers))
(x x)))
(guard (c ((and (http-get-error? c)
(= 404 (http-get-error-code c)))
(warning (G_ "~a is unreachable (~a)~%")
release-url (http-get-error-code c))
'#())) ;return an empty release set
(let* ((port (http-fetch release-url #:headers headers))
(result (json->scm port)))
(close-port port)
(match result
(#()
;; We got the empty list, presumably because the user didn't use GitHub's
;; "release" mechanism, but hopefully they did use Git tags.
(json-fetch tag-url #:headers headers))
(x x)))))
(define (latest-released-version url package-name)
"Return a string of the newest released version name given a string URL like


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