path: root/Documentation/diff-format.txt
diff options
authorJunio C Hamano <>2005-05-22 02:42:18 (GMT)
committerLinus Torvalds <>2005-05-22 05:49:19 (GMT)
commit81e50eabf06dd68e8e62a9b697eaf60904c58b22 (patch)
treef7cf8566f2a72a669b6e4bbaca0cf6ca5a781dd3 /Documentation/diff-format.txt
parent38c6f78059c3060db6f94b24f4a90063a91090d2 (diff)
[PATCH] The diff-raw format updates.
Update the diff-raw format as Linus and I discussed, except that it does not use sequence of underscore '_' letters to express nonexistence. All '0' mode is used for that purpose instead. The new diff-raw format can express rename/copy, and the earlier restriction that -M and -C _must_ be used with the patch format output is no longer necessary. The patch makes -M and -C flags independent of -p flag, so you need to say git-whatchanged -M -p to get the diff/patch format. Updated are both documentations and tests. Signed-off-by: Junio C Hamano <> Signed-off-by: Linus Torvalds <>
Diffstat (limited to 'Documentation/diff-format.txt')
1 files changed, 17 insertions, 12 deletions
diff --git a/Documentation/diff-format.txt b/Documentation/diff-format.txt
index 9e64539..7e9a515 100644
--- a/Documentation/diff-format.txt
+++ b/Documentation/diff-format.txt
@@ -16,25 +16,30 @@ git-diff-tree [-r] <tree-ish-1> <tree-ish-2> [<pattern>...]::
git-diff-files [<pattern>...]::
compares the cache and the files on the filesystem.
-The following desription uses "old" and "new" to mean those
-compared entities.
-For files in old but not in new (i.e. removed):
+An output line is formatted this way:
- -<mode> \t <type> \t <object> \t <path>
+ ':' <mode> ' ' <mode> ' ' <sha1> ' ' <sha1> I <path> I <path> L
-For files not in old but in new (i.e. added):
+By default, I and L are '\t' and '\n' respectively. When '-z'
+flag is in effect, both I and L are '\0'.
- +<mode> \t <type> \t <object> \t <path>
+In each <mode>, <sha1> and <path> pair, left hand side describes
+the left hand side of what is being compared (<tree-ish> in
+git-diff-cache, <tree-ish-1> in git-diff-tree, cache contents in
+git-diff-files). Non-existence is shown by having 000000 in the
+<mode> column. That is, 000000 appears as the first <mode> for
+newly created files, and as the second <mode> for deleted files.
-For files that differ:
+Usually two <path> are the same. When rename/copy detection is
+used, however, an "create" and another "delete" records can be
+merged into a single record that has two <path>, old name and
+new name.
- *<old-mode>-><new-mode> \t <type> \t <old-sha1>-><new-sha1> \t <path>
+<sha1> is shown as all 0's if new is a file on the filesystem
+and it is out of sync with the cache. Example:
-<new-sha1> is shown as all 0's if new is a file on the
-filesystem and it is out of sync with the cache. Example:
- *100644->100644 blob 5be4a4.......->000000....... file.c
+ :100644 100644 5be4a4...... 000000...... file.c file.c
Generating patches with -p