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git/mergetools/p4merge
David Aguilar 3facc60031 mergetools/p4merge: Handle "/dev/null"
p4merge does not properly handle the case where "/dev/null"
is passed as a filename.

Work it around by creating a temporary file for this purpose.

Reported-by: Jeremy Morton <admin@game-point.net>
Signed-off-by: David Aguilar <davvid@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
---

 Needs to be amended with Tested-by when a report comes...
2012-10-11 11:50:00 -07:00

35 lines
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Text

diff_cmd () {
# p4merge does not like /dev/null
rm_local=
rm_remote=
if test "/dev/null" = "$LOCAL"
then
LOCAL="./p4merge-dev-null.LOCAL.$$"
>"$LOCAL"
rm_local=true
fi
if test "/dev/null" = "$REMOTE"
then
REMOTE="./p4merge-dev-null.REMOTE.$$"
>"$REMOTE"
rm_remote=true
fi
"$merge_tool_path" "$LOCAL" "$REMOTE"
if test -n "$rm_local"
then
rm -f "$LOCAL"
fi
if test -n "$rm_remote"
then
rm -f "$REMOTE"
fi
}
merge_cmd () {
touch "$BACKUP"
$base_present || >"$BASE"
"$merge_tool_path" "$BASE" "$LOCAL" "$REMOTE" "$MERGED"
check_unchanged
}