merge-tool documentation: describe custom command usage

The configuration variables for custom merge tools were documented
only in config.txt but there was no reference to the functionality in
git-mergetool.txt.

Signed-off-by: Charles Bailey <charles@hashpling.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Charles Bailey 2008-03-08 20:47:06 +00:00 committed by Junio C Hamano
parent bbdfbc4b01
commit caa99829a2

View file

@ -37,6 +37,28 @@ 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 configration
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.
Author
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