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Add git_repository_is_detached, git_repository_is_orphan

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Signed-off-by: Carlos Martín Nieto <cmn@elego.de>
This commit is contained in:
Carlos Martín Nieto 2011-06-28 13:55:00 +02:00
parent 0b10c9ea6e
commit 35502d2ec4
2 changed files with 65 additions and 0 deletions
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24
include/git2/repository.h
View File

@ -218,6 +218,30 @@ GIT_EXTERN(void) git_repository_free(git_repository *repo);
*/
GIT_EXTERN(int) git_repository_init(git_repository **repo_out, const char *path, unsigned is_bare);
/**
* Check if a repository's HEAD is detached
*
* A repository's HEAD is detached when it points directly to a commit
* instead of a branch.
*
* @param repo Repo to test
* @return 1 if HEAD is detached, 0 if i'ts not; error code if there
* was an error.
*/
int git_repository_is_detached(git_repository *repo);
/**
* Check if the current branch is an orphan
*
* An orphan branch is one named from HEAD but which doesn't exist in
* the refs namespace, because it doesn't have any commit to point to.
*
* @param repo Repo to test
* @return 1 if the current branch is an orphan, 0 if it's not; error
* code if therewas an error
*/
int git_repository_is_orphan(git_repository *repo);
/**
* Check if a repository is empty
*

41
src/repository.c
View File

@ -752,6 +752,47 @@ cleanup:
return git__rethrow(error, "Failed to (re)init the repository `%s`", path);
}
int git_repository_is_detached(git_repository *repo)
{
git_reference *ref;
int error;
size_t GIT_UNUSED(_size);
git_otype type;
error = git_reference_lookup(&ref, repo, GIT_HEAD_FILE);
if (error < GIT_SUCCESS)
return error;
if (git_reference_type(ref) == GIT_REF_SYMBOLIC)
return 0;
error = git_odb_read_header(&_size, &type, repo->db, git_reference_oid(ref));
if (error < GIT_SUCCESS)
return error;
if (type != GIT_OBJ_COMMIT)
return git__throw(GIT_EOBJCORRUPTED, "HEAD is not a commit");
return 1;
}
int git_repository_is_orphan(git_repository *repo)
{
git_reference *ref;
int error;
error = git_reference_lookup(&ref, repo, GIT_HEAD_FILE);
if (error < GIT_SUCCESS)
return error;
if (git_reference_type(ref) == GIT_REF_OID)
return 0;
error = git_reference_resolve(&ref, ref);
return error == GIT_ENOTFOUND ? 1 : error;
}
int git_repository_is_empty(git_repository *repo)
{
git_reference *head, *branch;