6 git-diff-tree - Compares the content and mode of blobs found via two tree objects
12 'git diff-tree' [--stdin] [-m] [-s] [-v] [--no-commit-id] [--pretty]
13 [-t] [-r] [-c | --cc] [--combined-all-paths] [--root]
14 [<common diff options>] <tree-ish> [<tree-ish>] [<path>...]
18 Compares the content and mode of the blobs found via two tree objects.
20 If there is only one <tree-ish> given, the commit is compared with its parents
23 Note that 'git diff-tree' can use the tree encapsulated in a commit object.
27 include::diff-options.txt[]
30 The id of a tree object.
33 If provided, the results are limited to a subset of files
34 matching one of these prefix strings.
35 i.e., file matches `/^<pattern1>|<pattern2>|.../`
36 Note that this parameter does not provide any wildcard or regexp
40 recurse into sub-trees
43 show tree entry itself as well as subtrees. Implies -r.
46 When `--root` is specified the initial commit will be shown as a big
47 creation event. This is equivalent to a diff against the NULL tree.
50 When `--stdin` is specified, the command does not take
51 <tree-ish> arguments from the command line. Instead, it
52 reads lines containing either two <tree>, one <commit>, or a
53 list of <commit> from its standard input. (Use a single space
56 When two trees are given, it compares the first tree with the second.
57 When a single commit is given, it compares the commit with its
58 parents. The remaining commits, when given, are used as if they are
59 parents of the first commit.
61 When comparing two trees, the ID of both trees (separated by a space
62 and terminated by a newline) is printed before the difference. When
63 comparing commits, the ID of the first (or only) commit, followed by a
66 The following flags further affect the behavior when comparing
67 commits (but not trees).
70 By default, 'git diff-tree --stdin' does not show
71 differences for merge commits. With this flag, it shows
72 differences to that commit from all of its parents. See
76 By default, 'git diff-tree --stdin' shows differences,
77 either in machine-readable form (without `-p`) or in patch
78 form (with `-p`). This output can be suppressed. It is
79 only useful with `-v` flag.
82 This flag causes 'git diff-tree --stdin' to also show
83 the commit message before the differences.
85 include::pretty-options.txt[]
88 'git diff-tree' outputs a line with the commit ID when
89 applicable. This flag suppressed the commit ID output.
92 This flag changes the way a merge commit is displayed
93 (which means it is useful only when the command is given
94 one <tree-ish>, or `--stdin`). It shows the differences
95 from each of the parents to the merge result simultaneously
96 instead of showing pairwise diff between a parent and the
97 result one at a time (which is what the `-m` option does).
98 Furthermore, it lists only files which were modified
102 This flag changes the way a merge commit patch is displayed,
103 in a similar way to the `-c` option. It implies the `-c`
104 and `-p` options and further compresses the patch output
105 by omitting uninteresting hunks whose the contents in the parents
106 have only two variants and the merge result picks one of them
107 without modification. When all hunks are uninteresting, the commit
108 itself and the commit log message is not shown, just like in any other
111 --combined-all-paths::
112 This flag causes combined diffs (used for merge commits) to
113 list the name of the file from all parents. It thus only has
114 effect when -c or --cc are specified, and is likely only
115 useful if filename changes are detected (i.e. when either
116 rename or copy detection have been requested).
119 Show the commit itself and the commit log message even
120 if the diff itself is empty.
123 include::pretty-formats.txt[]
128 If you're only interested in differences in a subset of files, for
129 example some architecture-specific files, you might do:
131 git diff-tree -r <tree-ish> <tree-ish> arch/ia64 include/asm-ia64
133 and it will only show you what changed in those two directories.
135 Or if you are searching for what changed in just `kernel/sched.c`, just do
137 git diff-tree -r <tree-ish> <tree-ish> kernel/sched.c
139 and it will ignore all differences to other files.
141 The pattern is always the prefix, and is matched exactly. There are no
142 wildcards. Even stricter, it has to match a complete path component.
143 I.e. "foo" does not pick up `foobar.h`. "foo" does match `foo/bar.h`
144 so it can be used to name subdirectories.
146 An example of normal usage is:
148 torvalds@ppc970:~/git> git diff-tree --abbrev 5319e4
149 :100664 100664 ac348b... a01513... git-fsck-objects.c
151 which tells you that the last commit changed just one file (it's from
154 -----------------------------------------------------------------------------
155 commit 3c6f7ca19ad4043e9e72fa94106f352897e651a8
156 tree 5319e4d609cdd282069cc4dce33c1db559539b03
157 parent b4e628ea30d5ab3606119d2ea5caeab141d38df7
158 author Linus Torvalds <torvalds@ppc970.osdl.org> Sat Apr 9 12:02:30 2005
159 committer Linus Torvalds <torvalds@ppc970.osdl.org> Sat Apr 9 12:02:30 2005
161 Make "git-fsck-objects" print out all the root commits it finds.
163 Once I do the reference tracking, I'll also make it print out all the
164 HEAD commits it finds, which is even more interesting.
165 -----------------------------------------------------------------------------
170 include::diff-format.txt[]
174 Part of the linkgit:git[1] suite