diff options
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\"." |