#! /bin/bash
# Last edited on 2003-07-20 19:41:57 by stolfi

usage="${0##*/} DIR..."

# Lists dates of all full-size raw JPG or TIF images the
# given Mavica CD image directories.

if [ $# -lt 1 ]; then echo "usage: ${usage}"; exit 1; fi

curdir="`pwd`"
tmp="/tmp/$$"
tmpdirs="${tmp}.dirs"
tmpdates="${tmp}.dates"
tmpimgs="${tmp}.imgs"

for dir in $@ ; do
  cd ${curdir}
  cd ${dir}
  ls -a1 \
    | egrep '[.](JPG|TIF|jpg|tif) *$' \
    | egrep -v '[-][a-z][.]' \
    > ${tmpimgs}
  if [ -s ${tmpimgs} ]; then
    rm -f ${tmpdates}
    for f in `cat ${tmpimgs}` ; do
      /usr/bin/printf "%s " ${f} >> ${tmpdates}
      strings ${f} \
        | egrep '200[23]:[01][0-9]:[0-3][0-9] ' \
        | head -1 \
        >> ${tmpdates}
    done
    cat ${tmpdates} | sort -b +1 > .dates
    /usr/bin/printf "%s  %s -- %s\n" ${dir} "`head -1 .dates`" "`tail -1 .dates`"
  fi
done
rm -f ${tmp}.*