#!/bin/sh

# $Id: backup_old_dist,v 1.4 2017/10/22 14:28:37 gilles Exp gilles $

# Bye on any error not handled
set -e

DIST_PATH=${1:-dist}

echo $DIST_PATH

! test -f $DIST_PATH/imapsync && return

version_previous=`$DIST_PATH/imapsync --version || echo ERROR`
echo "previous: [$version_previous]"

test "ERROR" != "$version_previous" || return 1

version_current=`cat VERSION || echo ERROR`

test "ERROR" != "$version_current" || return 1

echo "current:  [$version_current]"

# nothing to backup
test "$version_previous" = "$version_current" && { echo "Nothing to backup, same release: $version_previous == $version_current" ; return 0 ; }

test -d $DIST_PATH/old_releases/$version_previous || mkdir $DIST_PATH/old_releases/$version_previous && ( cd $DIST_PATH/old_releases/$version_previous )

pwd
# all or nothing
ls -ld $DIST_PATH/imapsync  $DIST_PATH/imapsync-$version_previous.tgz  $DIST_PATH/imapsync_$version_previous.zip || return 1
# let's do it
mv -vf $DIST_PATH/imapsync $DIST_PATH/imapsync_bin_Darwin $DIST_PATH/imapsync-$version_previous.tgz  $DIST_PATH/imapsync_$version_previous.zip $DIST_PATH/old_releases/$version_previous