git-mergetool(1) ================ NAME ---- git-mergetool - Run merge conflict resolution tools to resolve merge conflicts SYNOPSIS -------- [verse] 'git mergetool' [--tool=<tool>] [-y|--no-prompt|--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. -y:: --no-prompt:: Don't prompt before each invocation of the merge resolution program. --prompt:: Prompt before each invocation of the merge resolution program. This is the default behaviour; the option is provided to override any configuration settings. 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 linkgit:git[1] suite