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| author | Marius Bakke <marius@gnu.org> | 2020-06-08 19:05:56 +0200 |
|---|---|---|
| committer | Marius Bakke <marius@gnu.org> | 2020-06-08 19:05:56 +0200 |
| commit | dd2d3ed2d30b5d705f9ed8695ab3171c29469f76 (patch) | |
| tree | 22e909cfe9de99fab471621a907b9f87045bb3bd /guix/git.scm | |
| parent | 24b61fb8ea8a9e8c5320d1db1447f9b62ad04b3d (diff) | |
| parent | 1fd2c00efbe701a81d86c254d5f4f285e63c1cde (diff) | |
| download | guix-patches-dd2d3ed2d30b5d705f9ed8695ab3171c29469f76.tar guix-patches-dd2d3ed2d30b5d705f9ed8695ab3171c29469f76.tar.gz | |
Merge branch 'master' into staging
Diffstat (limited to 'guix/git.scm')
| -rw-r--r-- | guix/git.scm | 29 |
1 files changed, 19 insertions, 10 deletions
diff --git a/guix/git.scm b/guix/git.scm index ab3b5075b1..1671f57d9f 100644 --- a/guix/git.scm +++ b/guix/git.scm @@ -39,6 +39,7 @@ honor-system-x509-certificates! with-repository + false-if-git-not-found update-cached-checkout url+commit->name latest-repository-commit @@ -243,18 +244,23 @@ Return true on success, false on failure." (G_ "Support for submodules is missing; \ please upgrade Guile-Git.~%")))) +(define-syntax-rule (false-if-git-not-found exp) + "Evaluate EXP, returning #false if a GIT_ENOTFOUND error is raised." + (catch 'git-error + (lambda () + exp) + (lambda (key error . rest) + (if (= GIT_ENOTFOUND (git-error-code error)) + #f + (apply throw key error rest))))) + (define (reference-available? repository ref) "Return true if REF, a reference such as '(commit . \"cabba9e\"), is definitely available in REPOSITORY, false otherwise." (match ref (('commit . commit) - (catch 'git-error - (lambda () - (->bool (commit-lookup repository (string->oid commit)))) - (lambda (key error . rest) - (if (= GIT_ENOTFOUND (git-error-code error)) - #f - (apply throw key error rest))))) + (false-if-git-not-found + (->bool (commit-lookup repository (string->oid commit))))) (_ #f))) @@ -311,10 +317,13 @@ When RECURSIVE? is true, check out submodules as well, if any." (new (and starting-commit (commit-lookup repository oid))) (old (and starting-commit - (commit-lookup repository - (string->oid starting-commit)))) + (false-if-git-not-found + (commit-lookup repository + (string->oid starting-commit))))) (relation (and starting-commit - (commit-relation old new)))) + (if old + (commit-relation old new) + 'unrelated)))) ;; Reclaim file descriptors and memory mappings associated with ;; REPOSITORY as soon as possible. |