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| author | Ludovic Courtès <ludo@gnu.org> | 2017-09-25 17:34:26 +0200 |
|---|---|---|
| committer | Ludovic Courtès <ludo@gnu.org> | 2017-09-26 00:35:06 +0200 |
| commit | 97abc90733270c4be5ce1f51e5e757d43787950b (patch) | |
| tree | f2878291f71835a31350250e5c19797e5c377971 /guix/upstream.scm | |
| parent | 8ddf20b286226e0e777c95046d824b1e586277c9 (diff) | |
| download | gnu-guix-97abc90733270c4be5ce1f51e5e757d43787950b.tar gnu-guix-97abc90733270c4be5ce1f51e5e757d43787950b.tar.gz | |
upstream: Add 'url-prefix-predicate'.
* guix/gnu-maintenance.scm (url-prefix-predicate): Move to...
* guix/upstream.scm (url-prefix-predicate): ... here.
Diffstat (limited to 'guix/upstream.scm')
| -rw-r--r-- | guix/upstream.scm | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/guix/upstream.scm b/guix/upstream.scm index 5083e6b805..6ad52ac960 100644 --- a/guix/upstream.scm +++ b/guix/upstream.scm @@ -45,6 +45,7 @@ upstream-source-signature-urls upstream-source-archive-types + url-prefix-predicate coalesce-sources upstream-updater @@ -81,6 +82,24 @@ (signature-urls upstream-source-signature-urls ;#f | list of strings (default #f))) +(define (url-prefix-predicate prefix) + "Return a predicate that returns true when passed a package where one of its +source URLs starts with PREFIX." + (lambda (package) + (define matching-uri? + (match-lambda + ((? string? uri) + (string-prefix? prefix uri)) + (_ + #f))) + + (match (package-source package) + ((? origin? origin) + (match (origin-uri origin) + ((? matching-uri?) #t) + (_ #f))) + (_ #f)))) + (define (upstream-source-archive-types release) "Return the available types of archives for RELEASE---a list of strings such as \"gz\" or \"xz\"." |