mergetool

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 is 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.<variant>.layout
Configure the split window layout for vimdiff’s <variant>, which is any of vimdiff, nvimdiff, gvimdiff. Upon launching git mergetool with --tool=<variant> (or without --tool if merge.tool is configured as <variant>), Git will consult mergetool.<variant>.layout to determine the tool’s layout. If the variant-specific configuration is not available, vimdiff ’ s is used as fallback. If that too is not available, a default layout with 4 windows will be used. ifdef::git-mergetool[] To configure the layout, see the ’BACKEND SPECIFIC HINTS’ section. endif::[] ifndef::git-mergetool[] To configure the layout, see the ’BACKEND SPECIFIC HINTS’ section in linkgit:git-mergetool[1]. endif::[]

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 are the versions of the file from before Git’s conflict resolution. This flag causes $LOCAL and $REMOTE to be overwritten 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.

mergetool.guiDefault
Set true to use the merge.guitool by default (equivalent to specifying the --gui argument), or auto to select merge.guitool or merge.tool depending on the presence of a DISPLAY environment variable value. The default is false, where the --gui argument must be provided explicitly for the merge.guitool to be used.