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git/mergetools/vimdiff
David Aguilar 2967284456 mergetools/vimdiff: trust Vim's exit code
Allow vimdiff users to signal that they do not want to use the
result of a merge by exiting with ":cquit", which tells Vim to
exit with an error code.

This is better than the current behavior because it allows users
to directly flag that the merge is bad, using a standard Vim
feature, rather than relying on a timestamp heuristic that is
unforgiving to users that save in-progress merge files.

The original behavior can be restored by configuring
mergetool.vimdiff.trustExitCode to false.

Reported-by: Dun Peal <dunpealer@gmail.com>
Signed-off-by: David Aguilar <davvid@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-11-29 10:57:41 -08:00

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diff_cmd () {
"$merge_tool_path" -R -f -d \
-c 'wincmd l' -c 'cd $GIT_PREFIX' "$LOCAL" "$REMOTE"
}
merge_cmd () {
case "$1" in
gvimdiff|vimdiff)
if $base_present
then
"$merge_tool_path" -f -d -c '4wincmd w | wincmd J' \
"$LOCAL" "$BASE" "$REMOTE" "$MERGED"
else
"$merge_tool_path" -f -d -c 'wincmd l' \
"$LOCAL" "$MERGED" "$REMOTE"
fi
;;
gvimdiff2|vimdiff2)
"$merge_tool_path" -f -d -c 'wincmd l' \
"$LOCAL" "$MERGED" "$REMOTE"
;;
gvimdiff3|vimdiff3)
if $base_present
then
"$merge_tool_path" -f -d -c 'hid | hid | hid' \
"$LOCAL" "$REMOTE" "$BASE" "$MERGED"
else
"$merge_tool_path" -f -d -c 'hid | hid' \
"$LOCAL" "$REMOTE" "$MERGED"
fi
;;
esac
}
translate_merge_tool_path() {
case "$1" in
gvimdiff|gvimdiff2|gvimdiff3)
echo gvim
;;
vimdiff|vimdiff2|vimdiff3)
echo vim
;;
esac
}
exit_code_trustable () {
true
}