ファイルを作成・編集する際に、ロード前の復号、セーブ後の暗号化を自動で行う

secuedit.sh

#! /bin/sh

if [ -z "$EDITOR" ]; then
  echo "EDITOR is not set."
  exit 1
fi

TMPFILE="${TMPDIR}secuedit.$$"

NEW=0
[ "-n" == "$2" ] && NEW=1

if [ "$NEW" == "0" ]; then
  openssl des3 -d -salt -in "$1" -out "$TMPFILE"
else
  touch "$TMPFILE"
fi
cp -f "$TMPFILE" "$TMPFILE.orig"
"$EDITOR" $TMPFILE

diff -q "$TMPFILE.orig" "$TMPFILE" >/dev/null 2>&1
if [ "$?" == "0" ]; then
  echo "not modified."
else
  [ "$NEW" == "1" ] && cp -f "$1" "$1~"
  openssl des3 -salt -in "$TMPFILE" -out "$1"
fi
rm -f "$TMPFILE" "$TMPFILE.orig"