unpack-diskimage (2049B)
1 #!/bin/bash 2 # This Source Code Form is subject to the terms of the Mozilla Public 3 # License, v. 2.0. If a copy of the MPL was not distributed with this 4 # file, You can obtain one at http://mozilla.org/MPL/2.0/. 5 6 # Unpack a disk image to a specified target folder 7 # 8 # Usage: unpack-diskimage <image_file> 9 # <mountpoint> 10 # <target_path> 11 12 DMG_PATH=$1 13 MOUNTPOINT=$2 14 TARGETPATH=$3 15 16 # How long to wait before giving up waiting for the mount to finish (seconds) 17 TIMEOUT=90 18 19 # If mnt already exists, then the previous run may not have cleaned up 20 # properly. We should try to umount and remove the mnt directory. 21 if [ -d $MOUNTPOINT ]; then 22 echo "mnt already exists, trying to clean up" 23 hdiutil detach $MOUNTPOINT -force 24 rm -rdfv $MOUNTPOINT 25 fi 26 27 # Install an on-exit handler that will unmount and remove the '$MOUNTPOINT' directory 28 trap "{ if [ -d $MOUNTPOINT ]; then hdiutil detach $MOUNTPOINT -force; rm -rdfv $MOUNTPOINT; fi; }" EXIT 29 30 mkdir -p $MOUNTPOINT 31 32 hdiutil attach -verbose -noautoopen -mountpoint $MOUNTPOINT "$DMG_PATH" 33 # Wait for files to show up 34 # hdiutil uses a helper process, diskimages-helper, which isn't always done its 35 # work by the time hdiutil exits. So we wait until something shows up in the 36 # mnt directory. Due to the async nature of diskimages-helper, the best thing 37 # we can do is to make sure the glob() rsync is making can find files. 38 i=0 39 while [ "$(echo $MOUNTPOINT/*)" == "$MOUNTPOINT/*" ]; do 40 if [ $i -gt $TIMEOUT ]; then 41 echo "No files found, exiting" 42 exit 1 43 fi 44 sleep 1 45 i=$(expr $i + 1) 46 done 47 # Now we can copy everything out of the $MOUNTPOINT directory into the target directory 48 rsync -av $MOUNTPOINT/* $MOUNTPOINT/.DS_Store $MOUNTPOINT/.background $MOUNTPOINT/.VolumeIcon.icns $TARGETPATH/. 49 hdiutil detach $MOUNTPOINT 50 rm -rdf $MOUNTPOINT 51 # diskimage-helper prints messages to stdout asynchronously as well, sleep 52 # for a bit to ensure they don't disturb following commands in a script that 53 # might parse stdout messages 54 sleep 5