6 git-difftool - Show changes using common diff tools
10 'git difftool' [<options>] [<commit> [<commit>]] [--] [<path>...]
14 'git difftool' is a git command that allows you to compare and edit files
15 between revisions using common diff tools. 'git difftool' is a frontend
16 to 'git diff' and accepts the same options and arguments. See
23 Do not prompt before launching a diff tool.
26 Prompt before each invocation of the diff tool.
27 This is the default behaviour; the option is provided to
28 override any configuration settings.
32 Use the diff tool specified by <tool>.
33 Valid merge tools are:
34 kdiff3, kompare, tkdiff, meld, xxdiff, emerge, vimdiff, gvimdiff,
35 ecmerge, diffuse, opendiff, p4merge and araxis.
37 If a diff tool is not specified, 'git difftool'
38 will use the configuration variable `diff.tool`. If the
39 configuration variable `diff.tool` is not set, 'git difftool'
40 will pick a suitable default.
42 You can explicitly provide a full path to the tool by setting the
43 configuration variable `difftool.<tool>.path`. For example, you
44 can configure the absolute path to kdiff3 by setting
45 `difftool.kdiff3.path`. Otherwise, 'git difftool' assumes the
46 tool is available in PATH.
48 Instead of running one of the known diff tools,
49 'git difftool' can be customized to run an alternative program
50 by specifying the command line to invoke in a configuration
51 variable `difftool.<tool>.cmd`.
53 When 'git difftool' is invoked with this tool (either through the
54 `-t` or `--tool` option or the `diff.tool` configuration variable)
55 the configured command line will be invoked with the following
56 variables available: `$LOCAL` is set to the name of the temporary
57 file containing the contents of the diff pre-image and `$REMOTE`
58 is set to the name of the temporary file containing the contents
59 of the diff post-image. `$MERGED` is the name of the file which is
60 being compared. `$BASE` is provided for compatibility
61 with custom merge tool commands and has the same value as `$MERGED`.
65 Specify a custom command for viewing diffs.
66 'git-difftool' ignores the configured defaults and runs
67 `$command $LOCAL $REMOTE` when this option is specified.
68 Additionally, `$BASE` is set in the environment.
72 When 'git-difftool' is invoked with the `-g` or `--gui` option
73 the default diff tool will be read from the configured
74 `diff.guitool` variable instead of `diff.tool`.
76 See linkgit:git-diff[1] for the full list of supported options.
80 'git difftool' falls back to 'git mergetool' config variables when the
81 difftool equivalents have not been defined.
84 The default diff tool to use.
87 The default diff tool to use when `--gui` is specified.
89 difftool.<tool>.path::
90 Override the path for the given tool. This is useful in case
91 your tool is not in the PATH.
94 Specify the command to invoke the specified diff tool.
96 See the `--tool=<tool>` option above for more details.
99 Prompt before each invocation of the diff tool.
103 linkgit:git-diff[1]::
104 Show changes between commits, commit and working tree, etc
106 linkgit:git-mergetool[1]::
107 Run merge conflict resolution tools to resolve merge conflicts
109 linkgit:git-config[1]::
110 Get and set repository or global options
115 Written by David Aguilar <davvid@gmail.com>.
119 Documentation by David Aguilar and the git-list <git@vger.kernel.org>.
123 Part of the linkgit:git[1] suite