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

NAME         top

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

SYNOPSIS         top

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

DESCRIPTION         top

       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

OPTIONS         top

       -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

           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.

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

           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.


       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         top

       Part of the git(1) suite

COLOPHON         top

       This page is part of the git (Git distributed version control system)
       project.  Information about the project can be found at 
       ⟨⟩.  If you have a bug report for this manual page,
       see ⟨⟩.  This page was obtained from the
       project's upstream Git repository ⟨⟩ on
       2018-10-29.  (At that time, the date of the most recent commit that
       was found in the repository was 2018-10-26.)  If you discover any
       rendering problems in this HTML version of the page, or you believe
       there is a better or more up-to-date source for the page, or you have
       corrections or improvements to the information in this COLOPHON
       (which is not part of the original manual page), send a mail to

Git           12/10/2016                 GIT-MERGETOOL(1)

Pages that refer to this page: git(1)git-config(1)git-difftool(1)git-gui(1)git-merge(1)