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| author | Daniel Barkalow <barkalow@iabervon.org> | 2005-06-06 16:31:29 -0400 |
|---|---|---|
| committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-06-06 17:09:45 -0700 |
| commit | 95fc75129acf14d980bdd56b9b2ee74190f81d91 (patch) | |
| tree | d3a6988ffe8b9ae0b554ddb4485ffb0f1cac0dc7 /refs.h | |
| parent | 451322512f2f72fe07461a8aeae0df4cfce7fda1 (diff) | |
| download | git-95fc75129acf14d980bdd56b9b2ee74190f81d91.tar.gz | |
[PATCH] Operations on refs
This patch adds code to read a hash out of a specified file under
{GIT_DIR}/refs/, and to write such files atomically and optionally with an
compare and lock.
Signed-off-by: Daniel Barkalow <barkalow@iabervon.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'refs.h')
| -rw-r--r-- | refs.h | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/refs.h b/refs.h new file mode 100644 index 0000000000..60cf48086f --- /dev/null +++ b/refs.h @@ -0,0 +1,21 @@ +#ifndef REFS_H +#define REFS_H + +/** Reads the refs file specified into sha1 **/ +extern int get_ref_sha1(const char *ref, unsigned char *sha1); + +/** Locks ref and returns the fd to give to write_ref_sha1() if the ref + * has the given value currently; otherwise, returns -1. + **/ +extern int lock_ref_sha1(const char *ref, const unsigned char *old_sha1); + +/** Writes sha1 into the refs file specified, locked with the given fd. **/ +extern int write_ref_sha1(const char *ref, int fd, const unsigned char *sha1); + +/** Writes sha1 into the refs file specified. **/ +extern int write_ref_sha1_unlocked(const char *ref, const unsigned char *sha1); + +/** Returns 0 if target has the right format for a ref. **/ +extern int check_ref_format(const char *target); + +#endif /* REFS_H */ |