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+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.