Stop if running low on disk space

[picsort] / pic-mv

#!/bin/bash

destdir=
if [[ -e .default-pic-mv-destdir ]];then
  destdir=$( < .default-pic-mv-destdir )
fi

exposure=
rotate=
while getopts d:e:r: opt;do
 case $opt in
  d)	destdir=$OPTARG;;
  e)	exposure=$OPTARG;;
  r)	rotate=$OPTARG;;
 esac
done
shift `expr $OPTIND - 1`

if [[ -z "$destdir" ]];then
  echo "Please specify a destdir with -d or .default-pic-mv-destdir" >&2
  exit 1
fi

file="$1"
name="$2"

re_escaped_name=$(sed 's/[?+*.]/\\&/g' <<< "$name")

# Find next number
max=$(ls "$destdir" | sed -rn "s/^$re_escaped_name ([0-9]+).jpeg$/\1/p" | sort -n | tail -n1)
if [[ "$max" ]];then
  number=$((max + 1))
else
  number=1
fi

out="$destdir/$name $number.jpeg"

if [[ "$file" == *.NEF ]];then
  base="${file%.NEF}"
  NEFout="$destdir/$name $number.NEF"
  if [[ "$rotate" ]];then
    numeric_exposure=$(dc <<< "2k $exposure 4 / 3.5-p")
    pics-run-ufraw "$numeric_exposure" "$file" "$out" "$rotate"
  else
    mv -vi "$exposure/$base.jpeg" "$out"
  fi
  touch -r "$file" "$out"
  mv -vi "$file" "$NEFout"
  chmod 644 "$NEFout"
else
  if [[ "$rotate" ]];then
    sed -i "s/^# ROBOTS_INSERT_THINGS_HERE\$/\"$name $number.jpeg\" => $rotate,\n&/" "$destdir/rotations.php"
  fi
  mv -vi "$file" "$out"
fi
chmod 644 "$out"