diff options
| -rw-r--r-- | src/refs.c | 34 | ||||
| -rw-r--r-- | src/refs.h | 14 |
2 files changed, 48 insertions, 0 deletions
diff --git a/src/refs.c b/src/refs.c index 0837dc4a8..a53d094fc 100644 --- a/src/refs.c +++ b/src/refs.c @@ -249,6 +249,40 @@ int git_reference_lookup_resolved( return 0; } +int git_reference__read_head( + git_reference **out, + git_repository *repo, + const char *path) +{ + git_buf reference = GIT_BUF_INIT; + char *name = NULL; + int error; + + if ((error = git_futils_readbuffer(&reference, path)) < 0) + goto out; + git_buf_rtrim(&reference); + + if (git__strncmp(reference.ptr, GIT_SYMREF, strlen(GIT_SYMREF)) == 0) { + git_buf_consume(&reference, reference.ptr + strlen(GIT_SYMREF)); + + name = git_path_basename(path); + + if ((*out = git_reference__alloc_symbolic(name, reference.ptr)) == NULL) { + error = -1; + goto out; + } + } else { + if ((error = git_reference_lookup(out, repo, reference.ptr)) < 0) + goto out; + } + +out: + free(name); + git_buf_clear(&reference); + + return error; +} + int git_reference_dwim(git_reference **out, git_repository *repo, const char *refname) { int error = 0, i; diff --git a/src/refs.h b/src/refs.h index 80e655af7..0c90db3af 100644 --- a/src/refs.h +++ b/src/refs.h @@ -107,6 +107,20 @@ int git_reference_lookup_resolved( const char *name, int max_deref); +/** + * Read reference from a file. + * + * This function will read in the file at `path`. If it is a + * symref, it will return a new unresolved symbolic reference + * with the given name pointing to the reference pointed to by + * the file. If it is not a symbolic reference, it will return + * the resolved reference. + */ +int git_reference__read_head( + git_reference **out, + git_repository *repo, + const char *path); + int git_reference__log_signature(git_signature **out, git_repository *repo); /** Update a reference after a commit. */ |