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#!/bin/sh
# Copyright (C) 2005 Junio C Hamano
#
# This script is designed to emulate what the built-in diff driver
# does when set as GIT_EXTERNAL_SCRIPT.
case "$#" in
1)
echo "* Unmerged path $1"
exit 0 ;;
*)
name1="$1" tmp1="$2" hex1="$3" mode1="$4" tmp2="$5" hex2="$6" mode2="$7"
case "$#" in
7)
name2="$name1" ;;
9)
name2="$8" xfrm_msg="$9" ;;
esac ;;
esac
show_create () {
name_="$1" tmp_="$2" hex_="$3" mode_="$4"
echo "diff --git a/$name_ b/$name_"
echo "new file mode $mode_"
diff ${GIT_DIFF_OPTS-'-pu'} -L /dev/null -L "b/$name_" /dev/null "$tmp_"
}
show_delete () {
name_="$1" tmp_="$2" hex_="$3" mode_="$4"
echo "diff --git a/$name_ b/$name_"
echo "deleted file mode $mode_"
diff ${GIT_DIFF_OPTS-'-pu'} -L "a/$name_" -L /dev/null "$tmp_" /dev/null
}
case "$mode1" in
120*) type1=l ;;
100*) type1=f ;;
.) show_create "$name2" "$tmp2" "$hex2" "$mode2"
exit 0 ;;
esac
case "$mode2" in
120*) type2=l ;;
100*) type2=f ;;
.) show_delete "$name1" "$tmp1" "$hex1" "$mode1"
exit 0 ;;
esac
if test "$type1" != "$type2"
then
show_delete "$name1" "$tmp1" "$hex1" "$mode1"
show_create "$name2" "$tmp2" "$hex2" "$mode2"
exit 0
fi
echo diff --git "a/$name1" "b/$name2"
if test "$mode1" != "$mode2"
then
echo "old mode $mode1"
echo "new mode $mode2"
if test "$xfrm_msg" != ""
then
echo "$xfrm_msg"
fi
fi
diff ${GIT_DIFF_OPTS-'-pu'} -L "a/$name1" -L "b/$name2" "$tmp1" "$tmp2"
exit 0