204 lines
6.0 KiB
Plaintext
204 lines
6.0 KiB
Plaintext
git-diff(1)
|
|
===========
|
|
|
|
NAME
|
|
----
|
|
git-diff - Show changes between commits, commit and working tree, etc
|
|
|
|
|
|
SYNOPSIS
|
|
--------
|
|
[verse]
|
|
'git diff' [options] [<commit>] [--] [<path>...]
|
|
'git diff' [options] --cached [<commit>] [--] [<path>...]
|
|
'git diff' [options] <commit> <commit> [--] [<path>...]
|
|
'git diff' [options] <blob> <blob>
|
|
'git diff' [options] [--no-index] [--] <path> <path>
|
|
|
|
DESCRIPTION
|
|
-----------
|
|
Show changes between the working tree and the index or a tree, changes
|
|
between the index and a tree, changes between two trees, changes between
|
|
two blob objects, or changes between two files on disk.
|
|
|
|
'git diff' [--options] [--] [<path>...]::
|
|
|
|
This form is to view the changes you made relative to
|
|
the index (staging area for the next commit). In other
|
|
words, the differences are what you _could_ tell Git to
|
|
further add to the index but you still haven't. You can
|
|
stage these changes by using linkgit:git-add[1].
|
|
|
|
'git diff' --no-index [--options] [--] [<path>...]::
|
|
|
|
This form is to compare the given two paths on the
|
|
filesystem. You can omit the `--no-index` option when
|
|
running the command in a working tree controlled by Git and
|
|
at least one of the paths points outside the working tree,
|
|
or when running the command outside a working tree
|
|
controlled by Git.
|
|
|
|
'git diff' [--options] --cached [<commit>] [--] [<path>...]::
|
|
|
|
This form is to view the changes you staged for the next
|
|
commit relative to the named <commit>. Typically you
|
|
would want comparison with the latest commit, so if you
|
|
do not give <commit>, it defaults to HEAD.
|
|
If HEAD does not exist (e.g. unborn branches) and
|
|
<commit> is not given, it shows all staged changes.
|
|
--staged is a synonym of --cached.
|
|
|
|
'git diff' [--options] <commit> [--] [<path>...]::
|
|
|
|
This form is to view the changes you have in your
|
|
working tree relative to the named <commit>. You can
|
|
use HEAD to compare it with the latest commit, or a
|
|
branch name to compare with the tip of a different
|
|
branch.
|
|
|
|
'git diff' [--options] <commit> <commit> [--] [<path>...]::
|
|
|
|
This is to view the changes between two arbitrary
|
|
<commit>.
|
|
|
|
'git diff' [--options] <commit>..<commit> [--] [<path>...]::
|
|
|
|
This is synonymous to the previous form. If <commit> on
|
|
one side is omitted, it will have the same effect as
|
|
using HEAD instead.
|
|
|
|
'git diff' [--options] <commit>\...<commit> [--] [<path>...]::
|
|
|
|
This form is to view the changes on the branch containing
|
|
and up to the second <commit>, starting at a common ancestor
|
|
of both <commit>. "git diff A\...B" is equivalent to
|
|
"git diff $(git-merge-base A B) B". You can omit any one
|
|
of <commit>, which has the same effect as using HEAD instead.
|
|
|
|
Just in case if you are doing something exotic, it should be
|
|
noted that all of the <commit> in the above description, except
|
|
in the last two forms that use ".." notations, can be any
|
|
<tree>.
|
|
|
|
For a more complete list of ways to spell <commit>, see
|
|
"SPECIFYING REVISIONS" section in linkgit:gitrevisions[7].
|
|
However, "diff" is about comparing two _endpoints_, not ranges,
|
|
and the range notations ("<commit>..<commit>" and
|
|
"<commit>\...<commit>") do not mean a range as defined in the
|
|
"SPECIFYING RANGES" section in linkgit:gitrevisions[7].
|
|
|
|
'git diff' [options] <blob> <blob>::
|
|
|
|
This form is to view the differences between the raw
|
|
contents of two blob objects.
|
|
|
|
OPTIONS
|
|
-------
|
|
:git-diff: 1
|
|
include::diff-options.txt[]
|
|
|
|
-1 --base::
|
|
-2 --ours::
|
|
-3 --theirs::
|
|
Compare the working tree with the "base" version (stage #1),
|
|
"our branch" (stage #2) or "their branch" (stage #3). The
|
|
index contains these stages only for unmerged entries i.e.
|
|
while resolving conflicts. See linkgit:git-read-tree[1]
|
|
section "3-Way Merge" for detailed information.
|
|
|
|
-0::
|
|
Omit diff output for unmerged entries and just show
|
|
"Unmerged". Can be used only when comparing the working tree
|
|
with the index.
|
|
|
|
<path>...::
|
|
The <paths> parameters, when given, are used to limit
|
|
the diff to the named paths (you can give directory
|
|
names and get diff for all files under them).
|
|
|
|
|
|
include::diff-format.txt[]
|
|
|
|
EXAMPLES
|
|
--------
|
|
|
|
Various ways to check your working tree::
|
|
+
|
|
------------
|
|
$ git diff <1>
|
|
$ git diff --cached <2>
|
|
$ git diff HEAD <3>
|
|
------------
|
|
+
|
|
<1> Changes in the working tree not yet staged for the next commit.
|
|
<2> Changes between the index and your last commit; what you
|
|
would be committing if you run "git commit" without "-a" option.
|
|
<3> Changes in the working tree since your last commit; what you
|
|
would be committing if you run "git commit -a"
|
|
|
|
Comparing with arbitrary commits::
|
|
+
|
|
------------
|
|
$ git diff test <1>
|
|
$ git diff HEAD -- ./test <2>
|
|
$ git diff HEAD^ HEAD <3>
|
|
------------
|
|
+
|
|
<1> Instead of using the tip of the current branch, compare with the
|
|
tip of "test" branch.
|
|
<2> Instead of comparing with the tip of "test" branch, compare with
|
|
the tip of the current branch, but limit the comparison to the
|
|
file "test".
|
|
<3> Compare the version before the last commit and the last commit.
|
|
|
|
Comparing branches::
|
|
+
|
|
------------
|
|
$ git diff topic master <1>
|
|
$ git diff topic..master <2>
|
|
$ git diff topic...master <3>
|
|
------------
|
|
+
|
|
<1> Changes between the tips of the topic and the master branches.
|
|
<2> Same as above.
|
|
<3> Changes that occurred on the master branch since when the topic
|
|
branch was started off it.
|
|
|
|
Limiting the diff output::
|
|
+
|
|
------------
|
|
$ git diff --diff-filter=MRC <1>
|
|
$ git diff --name-status <2>
|
|
$ git diff arch/i386 include/asm-i386 <3>
|
|
------------
|
|
+
|
|
<1> Show only modification, rename, and copy, but not addition
|
|
or deletion.
|
|
<2> Show only names and the nature of change, but not actual
|
|
diff output.
|
|
<3> Limit diff output to named subtrees.
|
|
|
|
Munging the diff output::
|
|
+
|
|
------------
|
|
$ git diff --find-copies-harder -B -C <1>
|
|
$ git diff -R <2>
|
|
------------
|
|
+
|
|
<1> Spend extra cycles to find renames, copies and complete
|
|
rewrites (very expensive).
|
|
<2> Output diff in reverse.
|
|
|
|
SEE ALSO
|
|
--------
|
|
diff(1),
|
|
linkgit:git-difftool[1],
|
|
linkgit:git-log[1],
|
|
linkgit:gitdiffcore[7],
|
|
linkgit:git-format-patch[1],
|
|
linkgit:git-apply[1]
|
|
|
|
GIT
|
|
---
|
|
Part of the linkgit:git[1] suite
|