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>.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.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.