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git-storage: fix up old broken local caches to use the right branch

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If you had one of the unfortunate local git caches with a local HEAD
just pointing to 'master', this will make note of that and then fix it
up to use the proper branch name in the cache repository.

[Dirk Hohndel: demoted from error to fprintf as most users won't care]

Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
This commit is contained in:
Linus Torvalds 2020-04-14 15:16:36 -07:00 • committed by Dirk Hohndel
parent 433149af19
commit f4ffd7a8fb
1 changed files with 16 additions and 0 deletions
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16
core/git-access.c
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@ -652,6 +652,7 @@ static git_repository *update_local_repo(const char *localdir, const char *remot
{
int error;
git_repository *repo = NULL;
git_reference *head;
if (verbose)
fprintf(stderr, "git storage: update local repo\n");
@ -664,6 +665,21 @@ static git_repository *update_local_repo(const char *localdir, const char *remot
report_error("Unable to open git cache repository at %s: %s", localdir, giterr_last()->message);
return NULL;
}
/* Check the HEAD being the right branch */
if (!git_repository_head(&head, repo)) {
const char *name;
if (!git_branch_name(&name, head)) {
if (strcmp(name, branch)) {
char *branchref = format_string("refs/heads/%s", branch);
fprintf(stderr, "Setting cache branch from '%s' to '%s'", name, branch);
git_repository_set_head(repo, branchref);
free(branchref);
}
}
git_reference_free(head);
}
if (!git_local_only)
sync_with_remote(repo, remote, branch, rt);