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| author | Ludovic Courtès <ludo@gnu.org> | 2013-02-06 22:52:50 +0100 |
|---|---|---|
| committer | Ludovic Courtès <ludo@gnu.org> | 2013-02-06 23:04:10 +0100 |
| commit | 1be77eac08d33a316d0dd179fcfc2a8a6558aaf5 (patch) | |
| tree | 0d628aa8074fee9d0808dbea761d52f8fe96406e /guix/build/union.scm | |
| parent | 6211223021cdb477e93d7ba789d5a0119ffb4bd4 (diff) | |
| download | gnu-guix-1be77eac08d33a316d0dd179fcfc2a8a6558aaf5.tar gnu-guix-1be77eac08d33a316d0dd179fcfc2a8a6558aaf5.tar.gz | |
union: Don't warn when colliding leaves point to the same file.
* guix/build/union.scm (union-build)[resolve-collision]: Pass LEAVES
through `delete-duplicates'; warn iff the result contains more than
one item.
Diffstat (limited to 'guix/build/union.scm')
| -rw-r--r-- | guix/build/union.scm | 19 |
1 files changed, 13 insertions, 6 deletions
diff --git a/guix/build/union.scm b/guix/build/union.scm index a6a4450180..275746d83e 100644 --- a/guix/build/union.scm +++ b/guix/build/union.scm @@ -137,13 +137,20 @@ the DIRECTORIES." (define (resolve-collision leaves) ;; LEAVES all have the same basename, so choose one of them. - (format (current-error-port) "warning: collision encountered: ~{~a ~}~%" - leaves) + (match (delete-duplicates leaves string=?) + ((one-and-the-same) + ;; LEAVES all actually point to the same file, so nothing to worry + ;; about. + one-and-the-same) + ((and lst (head _ ...)) + ;; A real collision. + (format (current-error-port) "warning: collision encountered: ~{~a ~}~%" + lst) - ;; TODO: Implement smarter strategies. - (format (current-error-port) "warning: arbitrarily choosing ~a~%" - (car leaves)) - (car leaves)) + ;; TODO: Implement smarter strategies. + (format (current-error-port) "warning: arbitrarily choosing ~a~%" + head) + head))) (setvbuf (current-output-port) _IOLBF) (setvbuf (current-error-port) _IOLBF) |