6 git-diff - Show changes between commits, commit and working tree, etc
12 'git diff' [<options>] [<commit>] [--] [<path>...]
13 'git diff' [<options>] --cached [--merge-base] [<commit>] [--] [<path>...]
14 'git diff' [<options>] [--merge-base] <commit> [<commit>...] <commit> [--] [<path>...]
15 'git diff' [<options>] <commit>...<commit> [--] [<path>...]
16 'git diff' [<options>] <blob> <blob>
17 'git diff' [<options>] --no-index [--] <path> <path>
21 Show changes between the working tree and the index or a tree, changes
22 between the index and a tree, changes between two trees, changes resulting
23 from a merge, changes between two blob objects, or changes between two
26 'git diff' [<options>] [--] [<path>...]::
28 This form is to view the changes you made relative to
29 the index (staging area for the next commit). In other
30 words, the differences are what you _could_ tell Git to
31 further add to the index but you still haven't. You can
32 stage these changes by using linkgit:git-add[1].
34 'git diff' [<options>] --no-index [--] <path> <path>::
36 This form is to compare the given two paths on the
37 filesystem. You can omit the `--no-index` option when
38 running the command in a working tree controlled by Git and
39 at least one of the paths points outside the working tree,
40 or when running the command outside a working tree
41 controlled by Git. This form implies `--exit-code`.
43 'git diff' [<options>] --cached [--merge-base] [<commit>] [--] [<path>...]::
45 This form is to view the changes you staged for the next
46 commit relative to the named <commit>. Typically you
47 would want comparison with the latest commit, so if you
48 do not give <commit>, it defaults to HEAD.
49 If HEAD does not exist (e.g. unborn branches) and
50 <commit> is not given, it shows all staged changes.
51 --staged is a synonym of --cached.
53 If --merge-base is given, instead of using <commit>, use the merge base
54 of <commit> and HEAD. `git diff --cached --merge-base A` is equivalent to
55 `git diff --cached $(git merge-base A HEAD)`.
57 'git diff' [<options>] [--merge-base] <commit> [--] [<path>...]::
59 This form is to view the changes you have in your
60 working tree relative to the named <commit>. You can
61 use HEAD to compare it with the latest commit, or a
62 branch name to compare with the tip of a different
65 If --merge-base is given, instead of using <commit>, use the merge base
66 of <commit> and HEAD. `git diff --merge-base A` is equivalent to
67 `git diff $(git merge-base A HEAD)`.
69 'git diff' [<options>] [--merge-base] <commit> <commit> [--] [<path>...]::
71 This is to view the changes between two arbitrary
74 If --merge-base is given, use the merge base of the two commits for the
75 "before" side. `git diff --merge-base A B` is equivalent to
76 `git diff $(git merge-base A B) B`.
78 'git diff' [<options>] <commit> <commit>... <commit> [--] [<path>...]::
80 This form is to view the results of a merge commit. The first
81 listed <commit> must be the merge itself; the remaining two or
82 more commits should be its parents. Convenient ways to produce
83 the desired set of revisions are to use the suffixes `^@` and
84 `^!`. If A is a merge commit, then `git diff A A^@`,
85 `git diff A^!` and `git show A` all give the same combined diff.
87 'git diff' [<options>] <commit>..<commit> [--] [<path>...]::
89 This is synonymous to the earlier form (without the `..`) for
90 viewing the changes between two arbitrary <commit>. If <commit> on
91 one side is omitted, it will have the same effect as
94 'git diff' [<options>] <commit>\...<commit> [--] [<path>...]::
96 This form is to view the changes on the branch containing
97 and up to the second <commit>, starting at a common ancestor
98 of both <commit>. `git diff A...B` is equivalent to
99 `git diff $(git merge-base A B) B`. You can omit any one
100 of <commit>, which has the same effect as using HEAD instead.
102 Just in case you are doing something exotic, it should be
103 noted that all of the <commit> in the above description, except
104 in the `--merge-base` case and in the last two forms that use `..`
105 notations, can be any <tree>. A tree of interest is the one pointed to
106 by the ref named `AUTO_MERGE`, which is written by the 'ort' merge
107 strategy upon hitting merge conflicts (see linkgit:git-merge[1]).
108 Comparing the working tree with `AUTO_MERGE` shows changes you've made
109 so far to resolve textual conflicts (see the examples below).
111 For a more complete list of ways to spell <commit>, see
112 "SPECIFYING REVISIONS" section in linkgit:gitrevisions[7].
113 However, "diff" is about comparing two _endpoints_, not ranges,
114 and the range notations (`<commit>..<commit>` and
115 `<commit>...<commit>`) do not mean a range as defined in the
116 "SPECIFYING RANGES" section in linkgit:gitrevisions[7].
118 'git diff' [<options>] <blob> <blob>::
120 This form is to view the differences between the raw
121 contents of two blob objects.
126 include::diff-options.txt[]
131 Compare the working tree with the "base" version (stage #1),
132 "our branch" (stage #2) or "their branch" (stage #3). The
133 index contains these stages only for unmerged entries i.e.
134 while resolving conflicts. See linkgit:git-read-tree[1]
135 section "3-Way Merge" for detailed information.
138 Omit diff output for unmerged entries and just show
139 "Unmerged". Can be used only when comparing the working tree
143 The <paths> parameters, when given, are used to limit
144 the diff to the named paths (you can give directory
145 names and get diff for all files under them).
148 include::diff-format.txt[]
153 Various ways to check your working tree::
157 $ git diff --cached <2>
159 $ git diff AUTO_MERGE <4>
162 <1> Changes in the working tree not yet staged for the next commit.
163 <2> Changes between the index and your last commit; what you
164 would be committing if you run `git commit` without `-a` option.
165 <3> Changes in the working tree since your last commit; what you
166 would be committing if you run `git commit -a`
167 <4> Changes in the working tree you've made to resolve textual
170 Comparing with arbitrary commits::
174 $ git diff HEAD -- ./test <2>
175 $ git diff HEAD^ HEAD <3>
178 <1> Instead of using the tip of the current branch, compare with the
179 tip of "test" branch.
180 <2> Instead of comparing with the tip of "test" branch, compare with
181 the tip of the current branch, but limit the comparison to the
183 <3> Compare the version before the last commit and the last commit.
188 $ git diff topic master <1>
189 $ git diff topic..master <2>
190 $ git diff topic...master <3>
193 <1> Changes between the tips of the topic and the master branches.
195 <3> Changes that occurred on the master branch since when the topic
196 branch was started off it.
198 Limiting the diff output::
201 $ git diff --diff-filter=MRC <1>
202 $ git diff --name-status <2>
203 $ git diff arch/i386 include/asm-i386 <3>
206 <1> Show only modification, rename, and copy, but not addition
208 <2> Show only names and the nature of change, but not actual
210 <3> Limit diff output to named subtrees.
212 Munging the diff output::
215 $ git diff --find-copies-harder -B -C <1>
219 <1> Spend extra cycles to find renames, copies and complete
220 rewrites (very expensive).
221 <2> Output diff in reverse.
226 include::includes/cmd-config-section-all.txt[]
228 include::config/diff.txt[]
233 linkgit:git-difftool[1],
235 linkgit:gitdiffcore[7],
236 linkgit:git-format-patch[1],
237 linkgit:git-apply[1],
242 Part of the linkgit:git[1] suite