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| author | Ludovic Courtès <ludo@gnu.org> | 2013-02-22 21:08:06 +0100 |
|---|---|---|
| committer | Ludovic Courtès <ludo@gnu.org> | 2013-02-22 21:08:06 +0100 |
| commit | 4d60610ad7929f5745afec36bd856434cc825bd9 (patch) | |
| tree | 97afc5601b68f853404909dc8778708cfaaa24e8 /guix/ui.scm | |
| parent | 7b50c68455b07713392cb92a56dbf74fbcc2d182 (diff) | |
| download | gnu-guix-4d60610ad7929f5745afec36bd856434cc825bd9.tar gnu-guix-4d60610ad7929f5745afec36bd856434cc825bd9.tar.gz | |
pull: Distinguish "already up to date" from "updated".
* guix/ui.scm (show-what-to-build): Return (length req*).
* guix/scripts/pull.scm (guix-pull): Print an "already up to date"
message when there's nothing to build.
Diffstat (limited to 'guix/ui.scm')
| -rw-r--r-- | guix/ui.scm | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/guix/ui.scm b/guix/ui.scm index 7d1ea2bcbd..7e0c61b4f8 100644 --- a/guix/ui.scm +++ b/guix/ui.scm @@ -118,7 +118,8 @@ General help using GNU software: <http://www.gnu.org/gethelp/>")) (define* (show-what-to-build store drv #:optional dry-run?) "Show what will or would (depending on DRY-RUN?) be built in realizing the -derivations listed in DRV." +derivations listed in DRV. Return #t if there's something to build, #f +otherwise." (let* ((req (append-map (lambda (drv-path) (let ((d (call-with-input-file drv-path read-derivation))) @@ -140,7 +141,8 @@ derivations listed in DRV." (N_ "~:[the following derivation will be built:~%~{ ~a~%~}~;~]" "~:[the following derivations will be built:~%~{ ~a~%~}~;~]" (length req*)) - (null? req*) req*)))) + (null? req*) req*)) + (pair? req*))) (define-syntax with-error-handling (syntax-rules () |