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GIT-MERGETOOL(1)		  Git Manual		      GIT-MERGETOOL(1)

NAME
       git-mergetool - Run merge conflict resolution tools to resolve merge
       conflicts

SYNOPSIS
       git mergetool [--tool=<tool>] [-y | --[no-]prompt] [<file>...]

DESCRIPTION
       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.

OPTIONS
       -t <tool>, --tool=<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.

       --tool-help
	   Print a list	of merge tools that may	be used	with --tool.

       -y, --no-prompt
	   Don't prompt	before each invocation of the merge resolution
	   program. This is the	default	if the merge resolution	program	is
	   explicitly specified	with the --tool	option or with the merge.tool
	   configuration variable.

       --prompt
	   Prompt before each invocation of the	merge resolution program to
	   give	the user a chance to skip the path.

       -g, --gui
	   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.

       --no-gui
	   This	overrides a previous -g	or --gui setting and reads the default
	   merge tool will be read from	the configured merge.tool variable.

       -O<orderfile>
	   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 git-config(1)). To cancel
	   diff.orderFile, use -O/dev/null.

CONFIGURATION
       mergetool.<tool>.path
	   Override the	path for the given tool. This is useful	in case	your
	   tool	is not in the PATH.

       mergetool.<tool>.cmd
	   Specify the command to invoke the specified merge tool. The
	   specified command is	evaluated in shell with	the following
	   variables available:	BASE is	the name of a temporary	file
	   containing the common base of the files to be merged, if available;
	   LOCAL is the	name of	a temporary file containing the	contents of
	   the file on the current branch; REMOTE is the name of a temporary
	   file	containing the contents	of the file from the branch being
	   merged; MERGED contains the name of the file	to which the merge
	   tool	should write the results of a successful merge.

       mergetool.<tool>.hideResolved
	   Allows the user to override the global mergetool.hideResolved value
	   for a specific tool.	See mergetool.hideResolved for the full
	   description.

       mergetool.<tool>.trustExitCode
	   For a custom	merge command, specify whether the exit	code of	the
	   merge command can be	used to	determine whether the merge was
	   successful. If this is not set to true then the merge target	file
	   timestamp is	checked	and the	merge assumed to have been successful
	   if the file has been	updated, otherwise the user is prompted	to
	   indicate the	success	of the merge.

       mergetool.meld.hasOutput
	   Older versions of meld do not support the --output option. Git will
	   attempt to detect whether meld supports --output by inspecting the
	   output of meld --help. Configuring mergetool.meld.hasOutput will
	   make	Git skip these checks and use the configured value instead.
	   Setting mergetool.meld.hasOutput to true tells Git to
	   unconditionally use the --output option, and	false avoids using
	   --output.

       mergetool.meld.useAutoMerge
	   When	the --auto-merge is given, meld	will merge all non-conflicting
	   parts automatically,	highlight the conflicting parts	and wait for
	   user	decision. Setting mergetool.meld.useAutoMerge to true tells
	   Git to unconditionally use the --auto-merge option with meld.
	   Setting this	value to auto makes git	detect whether --auto-merge is
	   supported and will only use --auto-merge when available. A value of
	   false avoids	using --auto-merge altogether, and is the default
	   value.

       mergetool.hideResolved
	   During a merge Git will automatically resolve as many conflicts as
	   possible and	write the MERGED file containing conflict markers
	   around any conflicts	that it	cannot resolve;	LOCAL and REMOTE
	   normally represent the versions of the file from before Git's
	   conflict resolution.	This flag causes LOCAL and REMOTE to be
	   overwriten so that only the unresolved conflicts are	presented to
	   the merge tool. Can be configured per-tool via the
	   mergetool.<tool>.hideResolved configuration variable. Defaults to
	   false.

       mergetool.keepBackup
	   After performing a merge, the original file with conflict markers
	   can be saved	as a file with a .orig extension. If this variable is
	   set to false	then this file is not preserved. Defaults to true
	   (i.e. keep the backup files).

       mergetool.keepTemporaries
	   When	invoking a custom merge	tool, Git uses a set of	temporary
	   files to pass to the	tool. If the tool returns an error and this
	   variable is set to true, then these temporary files will be
	   preserved, otherwise	they will be removed after the tool has
	   exited. Defaults to false.

       mergetool.writeToTemp
	   Git writes temporary	BASE, LOCAL, and REMOTE	versions of
	   conflicting files in	the worktree by	default. Git will attempt to
	   use a temporary directory for these files when set true. Defaults
	   to false.

       mergetool.prompt
	   Prompt before each invocation of the	merge resolution program.

TEMPORARY FILES
       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.

GIT
       Part of the git(1) suite

Git 2.32.0			  06/06/2021		      GIT-MERGETOOL(1)

NAME | SYNOPSIS | DESCRIPTION | OPTIONS | CONFIGURATION | TEMPORARY FILES | GIT

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