mailstats

#!/bin/bash

# set -x

VERSION="0.1.0"
GREP=
SENT=
DAYS=30
HOSTNAME=`hostname`
MAILDIR=$HOME/Maildir

version.display() {
  echo "$VERSION"
}

help.display() {
  cat <<-EOF
  Usage: mailstats [args]

  Options:
    -V, --version   Output current version
    -h, --help      Display help
    -m, --maildir   set different maildir (default: ~/Maildir)
    -H, --hostname  set different hostname (default: hostname)
    -d, --days      last X days (in days, default: 30)
    -s, --sent-only count only sent emails (default: all)
    -S, --no-sent   don't count sent emails (default: all)
EOF
}

while test $# -ne 0; do
  case $1 in
    -V|--version) version.display; exit ;;
    -h|--help) help.display; exit ;;
    -d|--directory) MAILDIR=$1 ;;
    -H|--hostname) HOSTNAME=$1 ;;
    -d|--days) shift; DAYS=$1 ;;
    -s|--sent-only) SENT=true ;;
    -S|--no-sent) SENT=false ;;
  esac
  shift
done

if [[ ! -z $SENT && $SENT == true ]]; then GREP='grep .Sent'
elif [[ ! -z $SENT && $SENT == false ]]; then GREP='grep -v .Sent'
else GREP='cat '
fi

main() {
  find $MAILDIR -type f -not -empty -ctime -$DAYS -ls | grep $HOSTNAME | eval "$GREP"
}

main;