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| author | Jeff King <peff@peff.net> | 2008-02-13 06:25:04 -0500 |
|---|---|---|
| committer | Junio C Hamano <gitster@pobox.com> | 2008-02-13 13:44:17 -0800 |
| commit | 346245a1bb6272dd370ba2f7b9bf86d3df5fed9a (patch) | |
| tree | 96aef73bb331d94b46d0d6c70d364df74ae77cc9 /sha1_file.c | |
| parent | 6c47d0e8f3983cff5bf633cb8e6f7ecfecf48db7 (diff) | |
| download | git-346245a1bb6272dd370ba2f7b9bf86d3df5fed9a.tar.gz git-346245a1bb6272dd370ba2f7b9bf86d3df5fed9a.tar.xz | |
hard-code the empty tree object
Now any commands may reference the empty tree object by its
sha1 (4b825dc642cb6eb9a060e54bf8d69288fbee4904). This is
useful for showing some diffs, especially for initial
commits.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Diffstat (limited to 'sha1_file.c')
| -rw-r--r-- | sha1_file.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/sha1_file.c b/sha1_file.c index 66a4e00fa..f7b75b2ac 100644 --- a/sha1_file.c +++ b/sha1_file.c @@ -1845,6 +1845,15 @@ static struct cached_object { } *cached_objects; static int cached_object_nr, cached_object_alloc; +static struct cached_object empty_tree = { + /* empty tree sha1: 4b825dc642cb6eb9a060e54bf8d69288fbee4904 */ + "\x4b\x82\x5d\xc6\x42\xcb\x6e\xb9\xa0\x60" + "\xe5\x4b\xf8\xd6\x92\x88\xfb\xee\x49\x04", + OBJ_TREE, + "", + 0 +}; + static struct cached_object *find_cached_object(const unsigned char *sha1) { int i; @@ -1854,6 +1863,8 @@ static struct cached_object *find_cached_object(const unsigned char *sha1) if (!hashcmp(co->sha1, sha1)) return co; } + if (!hashcmp(sha1, empty_tree.sha1)) + return &empty_tree; return NULL; } |