scripts/gendiff

   1 #!/bin/sh
   2
   3 [ -z "$1" -o -z "$2" ] && {
   4 # usage
   5   echo "usage: $0 <directory> <diff-extension>" 1>&2
   6   exit 1
   7 }
   8
   9 : ${DIFF:=diff}
  10 : ${GENDIFF_DIFF_ARGS:=-up}
  11 : ${GENDIFF_DIFF_CHANGELOG_ARGS:=-U0}
  12
  13 find $1 \( -name "*$2" -o -name ".*$2" \) -print | sort |
  14 while read f; do
  15     U="${GENDIFF_DIFF_ARGS}"
  16     [ "`basename $f`" = "ChangeLog$2" ] && U="${GENDIFF_DIFF_CHANGELOG_ARGS}"
  17     diffcmd="${DIFF} ${U} /dev/null ${f%$2}"
  18 #    ${DIFF} ${U} $f `echo $f | sed s/$2\$//`
  19     if [ -r "$f" ]; then
  20         diffcmd="${DIFF} ${U} ${f} ${f%$2}"
  21     fi
  22     echo "${diffcmd}"
  23     ${diffcmd}
  24 done