update_system_configure.sh

#!/usr/bin/sudo /bin/zsh

# Usage:
#   - put system configure files (with path) at $PWD
#     for example, $PWD/etc/mpd.conf ...
#   - run this script

autoload colors
colors

SELF_BASENAME=`basename $0`

for i in `find`; do
  FILE_BASENAME=`basename $i`
  if [[ -f $i ]] && [[ $FILE_BASENAME != $SELF_BASENAME ]] && [[ "$FILE_BASENAME[1]" != "." ]]; then
    printf "$fg[white]$i: "
    if [[ "/$i" -nt $i ]]; then
      # system has newer file
      print "$fg[red]System has newer version"
    else
      # system has older or different file
      if [[ -f /$i ]]; then
        if diff -q "/$i" $i &>/dev/null; then
          # same file
          print "$fg[green]Ok"
        else
          # need update
          printf "$fg[blue]Updating... "
          DEST_MOD=`stat -c %a /$i`
          DEST_GROUP=`stat -c %g /$i`
          DEST_USER=`stat -c %u /$i`

          # install
          /bin/install -g $DEST_GROUP -o $DEST_USER -m $DEST_MOD -p -T $i /$i
          print "Done"
        fi
      else
        # need create
        printf "$fg[blue]Creating... "
        SRC_MOD=`stat -c %a $i`

        # check directory and create
        DEST_DIR=`dirname /$i`
        if [[ ! -d $DEST_DIR ]]; then
          printf '(new dir) '
          mkdir -p $DEST_DIR
        fi

        if [[ -d $DEST_DIR ]]; then
          /bin/install -m $SRC_MOD -p -T $i /$i
          print "Done"
        else
          print "$fg[red]Failed"
        fi
      fi
    fi
  fi
done