SYNOPSIS
--------
[verse]
-'git-diff-tree' [--stdin] [-m] [-s] [-v] [--no-commit-id] [--pretty]
+'git diff-tree' [--stdin] [-m] [-s] [-v] [--no-commit-id] [--pretty]
[-t] [-r] [-c | --cc] [--root] [<common diff options>]
<tree-ish> [<tree-ish>] [<path>...]
If there is only one <tree-ish> given, the commit is compared with its parents
(see --stdin below).
-Note that "git-diff-tree" can use the tree encapsulated in a commit object.
+Note that 'git-diff-tree' can use the tree encapsulated in a commit object.
OPTIONS
-------
<path>...::
If provided, the results are limited to a subset of files
matching one of these prefix strings.
- i
e file matches `/^<pattern1>|<pattern2>|.../`
+ i
.e., file matches `/^<pattern1>|<pattern2>|.../`
Note that this parameter does not provide any wildcard or regexp
features.
+
When a single commit is given on one line of such input, it compares
the commit with its parents. The following flags further affects its
-behaviour. This does not apply to the case where two <tree-ish>
+behavior. This does not apply to the case where two <tree-ish>
separated with a single space are given.
-m::
- By default, "git-diff-tree --stdin" does not show
+ By default, 'git-diff-tree --stdin' does not show
differences for merge commits. With this flag, it shows
- differences to that commit from all of its parents.
+ differences to that commit from all of its parents. See
+ also '-c'.
-s::
- By default, "git-diff-tree --stdin" shows differences,
+ By default, 'git-diff-tree --stdin' shows differences,
either in machine-readable form (without '-p') or in patch
form (with '-p'). This output can be suppressed. It is
only useful with '-v' flag.
-v::
- This flag causes "git-diff-tree --stdin" to also show
+ This flag causes 'git-diff-tree --stdin' to also show
the commit message before the differences.
---pretty[=(raw|medium|short)]::
- This is used to control "pretty printing" format of the
- commit message. Without "=<style>", it defaults to
- medium.
+include::pretty-options.txt[]
--no-commit-id::
- git-diff-tree outputs a line with the commit ID when
+ 'git-diff-tree' outputs a line with the commit ID when
applicable. This flag suppressed the commit ID output.
--c,--cc::
- These flags change the way a merge commit is displayed
+-c::
+ This flag changes the way a merge commit is displayed
(which means it is useful only when the command is given
one <tree-ish>, or '--stdin'). It shows the differences
- from each of the parents to the merge result
- simultaneously, instead of showing pairwise diff between
- a parent and the result one at a time, which '-m' option
- output does. '--cc' further compresses the output by
- omiting hunks that show differences from only one
- parent, or show the same change from all but one parent
- for an Octopus merge. When this optimization makes all
- hunks disappear, the commit itself and the commit log
- message is not shown, unless '-m' is specified.
+ from each of the parents to the merge result simultaneously
+ instead of showing pairwise diff between a parent and the
+ result one at a time (which is what the '-m' option does).
+ Furthermore, it lists only files which were modified
+ from all parents.
+
+--cc::
+ This flag changes the way a merge commit patch is displayed,
+ in a similar way to the '-c' option. It implies the '-c'
+ and '-p' options and further compresses the patch output
+ by omitting uninteresting hunks whose the contents in the parents
+ have only two variants and the merge result picks one of them
+ without modification. When all hunks are uninteresting, the commit
+ itself and the commit log message is not shown, just like in any other
+ "empty diff" case.
+
+--always::
+ Show the commit itself and the commit log message even
+ if the diff itself is empty.
+
+
+include::pretty-formats.txt[]
Limiting Output
If you're only interested in differences in a subset of files, for
example some architecture-specific files, you might do:
- git-diff-tree -r <tree-ish> <tree-ish> arch/ia64 include/asm-ia64
+ git diff-tree -r <tree-ish> <tree-ish> arch/ia64 include/asm-ia64
and it will only show you what changed in those two directories.
Or if you are searching for what changed in just `kernel/sched.c`, just do
- git-diff-tree -r <tree-ish> <tree-ish> kernel/sched.c
+ git diff-tree -r <tree-ish> <tree-ish> kernel/sched.c
and it will ignore all differences to other files.
An example of normal usage is:
- torvalds@ppc970:~/git> git-diff-tree 5319e4......
+ torvalds@ppc970:~/git> git diff-tree 5319e4......
*100664->100664 blob ac348b.......->a01513....... git-fsck-objects.c
which tells you that the last commit changed just one file (it's from
GIT
---
-Part of the gitlink:git[7] suite
-
+Part of the linkgit:git[1] suite