*diff2 [#b93d077e]
あるプロジェクトとあるプロジェクト以下のディレクトリ・ファイルについて、再帰的なdiffを取る。
想定するのは、テスト環境から本番環境へファイルをコピー（本番反映）する場合に、テスト環境のディレクトリ以下と本番環境のディレクトリ以下の差分を取りたい場合など。
#!/bin/sh
# ------------------------------------------------------------------------------
# Configuration
# ------------------------------------------------------------------------------
EXCLUDES="
C/A
"
"
# ------------------------------------------------------------------------------
# Parse Arguments
# ------------------------------------------------------------------------------
uid=`id -u`
date=`date +%Y%m%d`
tmp_base=/tmp/.diff2.tmp.$uid
tmp_file=$tmp_base.$date
case $1 in
-ignore|-i)
echo $2 >> $tmp_file
exit
;;
-show|-s)
if [ -f $tmp_file ]; then
cat $tmp_file
fi
exit
;;
-clear|-c)
if [ -f $tmp_file ]; then
rm -f $tmp_base.*
fi
exit
;;
-rm)
RM=1
shift
;;
-cp)
CP=1
shift
;;
esac
if [ -f $tmp_file ]; then
exc=`cat $tmp_file`
EXCLUDES="$EXCLUDES$exc"
fi
# ----------------------------------
# Check two directories in arguments
# ----------------------------------
idx=1
for arg in $*; do
if [ -d $arg ]; then
eval DIR$idx=$arg
idx=`expr $idx + 1`
elif [ -f $arg ]; then
eval FILE$idx=$arg
idx=`expr $idx + 1`
elif [ -f $DIR1/$arg -a -f $DIR2/$arg ]; then
FILE0=$arg
else
ARGS="$ARGS $arg"
fi
done
# Remove the last '/' if exists
# /foo/var/ => /foo/var
if [ -d "$DIR1" ];then
DIR1=`echo "$DIR1" | sed -e 's/\/$//'`
fi
if [ -d "$DIR2" ];then
DIR2=`echo "$DIR2" | sed -e 's/\/$//'`
fi
err=1
if [ "$DIR1" != '' -a "$DIR2" != '' ]; then
err=
fi
if [ "$FILE1" != '' -a "$FILE2" != '' ]; then
err=
fi
if [ "$CP" -o "$RM" ]; then
if [ "$DIR1" = '' -o "$DIR2" = '' ]; then
err=1
fi
fi
if [ $err ]; then
echo "----------------------------"
echo " USAGE"
echo "----------------------------"
echo "DO DIFF"
echo "$0 DIR1 DIR2 or"
echo "$0 FILE1 FILE2 or"
echo "$0 DIR1 DIR2 COMMON_FILE"
echo
echo "SET/UNSET IGNORE FILES"
echo "$0 -ignore DIR|FILE or"
echo "$0 -show or"
echo "$0 -clear or"
echo
echo "ECHO CP COMMAND"
echo "$0 -cp DIR1 DIR2"
echo
echo "ECHO RM COMMAND"
echo "$0 -rm DIR1 DIR2"
exit 1
fi
# ------------------------------------------------------------------------------
# Do diff for files (not direcotries) and EXIT
# ------------------------------------------------------------------------------
if [ "$FILE0" ]; then
diff $ARGS "$DIR1/$FILE0" "$DIR2/$FILE0"
exit
elif [ "$FILE1" != '' -a "$FILE2" != '' ]; then
diff $ARGS $FILE1 $FILE2
exit
fi
# ------------------------------------------------------------------------------
# Do diff for direcotries
# ------------------------------------------------------------------------------
DIFF=`LC_ALL=C diff -r -q $ARGS $DIR1 $DIR2`
IFS="
"
for diff in $DIFF; do
# ------------
# Only in DIR1
# ------------
DIR1_=`echo $DIR1 | sed -e 's/\//\\\\\//g'`
DIR2_=`echo $DIR2 | sed -e 's/\//\\\\\//g'`
if echo $diff | grep "Only in $DIR1_" 2>&1 1>/dev/null; then
dir=`echo $diff | cut -f 3 -d ' ' | sed -e "s/$DIR1_//" | tr ':' '/'`
file=`echo $diff | cut -f 4 -d ' '`
mesg="<-- :"
# ------------
# Only in DIR2
# ------------
elif echo $diff | grep "Only in $DIR2" 2>&1 1>/dev/null; then
dir=`echo $diff | cut -f 3 -d ' ' | sed -e "s/$DIR2_//" | tr ':' '/'`
file=`echo $diff | cut -f 4 -d ' '`
mesg="--> :"
# ---------
# Different
# ---------
else
dir=
file=`echo $diff | cut -f 2 -d ' ' | sed -e "s/$DIR1_//"`
mesg=" * :"
fi
dir=`echo $dir | sed -e 's/^\///'`
file=`echo $file | sed -e 's/^\///'`
# ---------------------------------------
# Check where the file is excluded or not
# If so, skip
# ---------------------------------------
show=1
for e in $EXCLUDES; do
if echo "$dir$file" | grep -E "$e" 2>&1 1>/dev/null; then
show=
break
fi
done
# -----------------------
# Show the result of DIFF
# -----------------------
if [ $show ]; then
if [ $CP ]; then
if [ $mesg = '<-- :' -o $mesg = ' * :' ]; then
echo cp $DIR1/$dir$file $DIR2/$dir$file
fi
elif [ $RM ]; then
if [ $mesg = '--> :' ]; then
echo rm $DIR2/$dir$file
fi
else
echo $mesg $dir$file
fi
fi
done
# vim: sw=2:
