hash.h: move some oid-related declarations from cache.h

[thirdparty/git.git] / hash.h

diff --git a/hash.h b/hash.h
index 351afc2ce3b5971e9a14b3e2c73fcfa215229408..d39f73618cb8d9e8678ccf3d0794fbef1a55243c 100644 (file)
--- a/hash.h
+++ b/hash.h
@@ -123,6 +123,40 @@ struct object_id {
        int algo;       /* XXX requires 4-byte alignment */
 };
 
+#define GET_OID_QUIETLY           01
+#define GET_OID_COMMIT            02
+#define GET_OID_COMMITTISH        04
+#define GET_OID_TREE             010
+#define GET_OID_TREEISH          020
+#define GET_OID_BLOB             040
+#define GET_OID_FOLLOW_SYMLINKS 0100
+#define GET_OID_RECORD_PATH     0200
+#define GET_OID_ONLY_TO_DIE    04000
+#define GET_OID_REQUIRE_PATH  010000
+
+#define GET_OID_DISAMBIGUATORS \
+       (GET_OID_COMMIT | GET_OID_COMMITTISH | \
+       GET_OID_TREE | GET_OID_TREEISH | \
+       GET_OID_BLOB)
+
+enum get_oid_result {
+       FOUND = 0,
+       MISSING_OBJECT = -1, /* The requested object is missing */
+       SHORT_NAME_AMBIGUOUS = -2,
+       /* The following only apply when symlinks are followed */
+       DANGLING_SYMLINK = -4, /*
+                               * The initial symlink is there, but
+                               * (transitively) points to a missing
+                               * in-tree file
+                               */
+       SYMLINK_LOOP = -5,
+       NOT_DIR = -6, /*
+                      * Somewhere along the symlink chain, a path is
+                      * requested which contains a file as a
+                      * non-final element.
+                      */
+};
+
 /* A suitably aligned type for stack allocations of hash contexts. */
 union git_hash_ctx {
        git_SHA_CTX sha1;