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git-mergetool - Run merge conflict resolution tools to resolve merge conflicts
'git mergetool' [--tool=<tool>] [-y | --[no-]prompt] [<file>...]
Use `git mergetool` to run one of several merge utilities to resolve
merge conflicts. It is typically run after 'git merge'.
If one or more <file> parameters are given, the merge tool program will
be run to resolve differences on each file (skipping those without
conflicts). Specifying a directory will include all unresolved files in
that path. If no <file> names are specified, 'git mergetool' will run
the merge tool program on every file with merge conflicts.
-t <tool>::
Use the merge resolution program specified by <tool>.
Valid values include emerge, gvimdiff, kdiff3,
meld, vimdiff, and tortoisemerge. Run `git mergetool --tool-help`
for the list of valid <tool> settings.
If a merge resolution program is not specified, 'git mergetool'
will use the configuration variable `merge.tool`. If the
configuration variable `merge.tool` is not set, 'git mergetool'
will pick a suitable default.
You can explicitly provide a full path to the tool by setting the
configuration variable `mergetool.<tool>.path`. For example, you
can configure the absolute path to kdiff3 by setting
`mergetool.kdiff3.path`. Otherwise, 'git mergetool' assumes the
tool is available in PATH.
Instead of running one of the known merge tool programs,
'git mergetool' can be customized to run an alternative program
by specifying the command line to invoke in a configuration
variable `mergetool.<tool>.cmd`.
When 'git mergetool' is invoked with this tool (either through the
`-t` or `--tool` option or the `merge.tool` configuration
variable) the configured command line will be invoked with `$BASE`
set to the name of a temporary file containing the common base for
the merge, if available; `$LOCAL` set to the name of a temporary
file containing the contents of the file on the current branch;
`$REMOTE` set to the name of a temporary file containing the
contents of the file to be merged, and `$MERGED` set to the name
of the file to which the merge tool should write the result of the
merge resolution.
If the custom merge tool correctly indicates the success of a
merge resolution with its exit code, then the configuration
variable `mergetool.<tool>.trustExitCode` can be set to `true`.
Otherwise, 'git mergetool' will prompt the user to indicate the
success of the resolution after the custom tool has exited.
Print a list of merge tools that may be used with `--tool`.
Don't prompt before each invocation of the merge resolution
This is the default if the merge resolution program is
explicitly specified with the `--tool` option or with the
`merge.tool` configuration variable.
Prompt before each invocation of the merge resolution program
to give the user a chance to skip the path.
When 'git-mergetool' is invoked with the `-g` or `--gui` option
the default merge tool will be read from the configured
`merge.guitool` variable instead of `merge.tool`. If
`merge.guitool` is not set, we will fallback to the tool
configured under `merge.tool`.
This overrides a previous `-g` or `--gui` setting and reads the
default merge tool will be read from the configured `merge.tool`
Process files in the order specified in the
<orderfile>, which has one shell glob pattern per line.
This overrides the `diff.orderFile` configuration variable
(see linkgit:git-config[1]). To cancel `diff.orderFile`,
use `-O/dev/null`.
:git-mergetool: 1
`git mergetool` creates `*.orig` backup files while resolving merges.
These are safe to remove once a file has been merged and its
`git mergetool` session has completed.
Setting the `mergetool.keepBackup` configuration variable to `false`
causes `git mergetool` to automatically remove the backup as files
are successfully merged.
Part of the linkgit:git[1] suite