#!/bin/bash
# This Source Code Form
is subject
to the terms of the Mozilla Public
# License, v.
2.
0.
If a copy of the MPL was not distributed
with this
#
file, You can
obtain one at
http://mozilla.org/MPL/2.
0/.
# Unpack a disk image
to a specified target folder
#
# Usage: unpack-diskimage
🚫
#
🚫
#
🚫
DMG_PATH=$
1
MOUNTPOINT=$
2
TARGETPATH=$
3
# How long
to wait before giving up waiting
for the mount
to finish (seconds)
TIMEOUT=
90
#
If mnt already exists,
then the previous run may not
have cleaned up
# properly. We should try
to umount
and remove the mnt directory.
if [ -d $MOUNTPOINT ];
then
echo
"mnt already exists, trying to clean up"
hdiutil detach $MOUNTPOINT -force
rm -rdfv $MOUNTPOINT
fi
# Install an on-
exit handler that will unmount
and remove the '$MOUNTPOINT' directory
trap
"{ if [ -d $MOUNTPOINT ]; then hdiutil detach $MOUNTPOINT -force; rm -rdfv $MOUNTPOINT; fi; }" EXIT
mkdir -p $MOUNTPOINT
hdiutil
attach -verbose -noautoopen -mountpoint $MOUNTPOINT
"$DMG_PATH"
# Wait
for files
to show up
# hdiutil
uses a helper process, diskimages-helper, which isn't always
done its
# work
by the time hdiutil exits. So we wait until something
shows up
in the
# mnt directory. Due
to the async nature of diskimages-helper, the best thing
# we can do
is to make sure the glob() rsync
is making can find files.
i=
0
while [
"$(echo $MOUNTPOINT/*)" ==
"$MOUNTPOINT/*" ]; do
if [ $i -gt $TIMEOUT ];
then
echo
"No files found, exiting"
exit 1
fi
sleep
1
i=$(expr $i +
1)
done
# Now we can copy everything out of the $MOUNTPOINT directory into the target directory
rsync -av $MOUNTPOINT/* $MOUNTPOINT/.DS_Store $MOUNTPOINT/.background $MOUNTPOINT/.Vo
lumeIcon.icns $TARGETPATH/.
hdiutil detach $MOUNTPOINT
rm -rdf $MOUNTPOINT
# diskimage-helper prints messages to stdout asynchronously as well, sleep
# for a bit to ensure they don't disturb following commands in a script that
# might parse stdout messages
sleep 5