osx-create-dmg.sh.in

#!/bin/bash

set -ex

# Original by Andy Maloney
# http://asmaloney.com/2013/07/howto/packaging-a-mac-os-x-application-using-a-dmg/
# Changes specific to SCAP Workbench by Martin Preisler <mpreisle@redhat.com>

# set up your app name, version number, and background image file name
APP_NAME="scap-workbench"
VERSION="@SCAP_WORKBENCH_VERSION@"
DMG_BACKGROUND_IMG="@CMAKE_SOURCE_DIR@/osx-dmg-background.png"

# you should not need to change these
APP_EXE="@CMAKE_BINARY_DIR@/${APP_NAME}.app/Contents/MacOS/${APP_NAME}"

# make sure Qt frameworks are included
macdeployqt @CMAKE_BINARY_DIR@/${APP_NAME}.app

VOL_NAME="${APP_NAME}-${VERSION}"   # volume name will be "SuperCoolApp-1.0.0"
DMG_TMP="${VOL_NAME}-temp.dmg"
DMG_FINAL="${VOL_NAME}.dmg"         # final DMG name will be "SuperCoolApp-1.0.0.dmg"
STAGING_DIR="@CMAKE_BINARY_DIR@/OSX-DMG-TEMP"  # we copy all our stuff into this dir

# Check the background image DPI and convert it if it isn't 72x72
_BACKGROUND_IMAGE_DPI_H=`sips -g dpiHeight ${DMG_BACKGROUND_IMG} | grep -Eo '[0-9]+\.[0-9]+'`
_BACKGROUND_IMAGE_DPI_W=`sips -g dpiWidth ${DMG_BACKGROUND_IMG} | grep -Eo '[0-9]+\.[0-9]+'`

if [ $(echo " $_BACKGROUND_IMAGE_DPI_H != 72.0 " | bc) -eq 1 -o $(echo " $_BACKGROUND_IMAGE_DPI_W != 72.0 " | bc) -eq 1 ]; then
   echo "WARNING: The background image's DPI is not 72.  This will result in distorted backgrounds on Mac OS X 10.7+."
   echo "         I will convert it to 72 DPI for you."
   _DMG_BACKGROUND_TMP="${DMG_BACKGROUND_IMG%.*}"_dpifix."${DMG_BACKGROUND_IMG##*.}"
   sips -s dpiWidth 72 -s dpiHeight 72 ${DMG_BACKGROUND_IMG} --out ${_DMG_BACKGROUND_TMP}
   DMG_BACKGROUND_IMG="${_DMG_BACKGROUND_TMP}"
fi

# clear out any old data
rm -rf "${STAGING_DIR}" "${DMG_TMP}" "${DMG_FINAL}"

# copy over the stuff we want in the final disk image to our staging dir
mkdir -p "${STAGING_DIR}"
cp -rpf "${APP_NAME}.app" "${STAGING_DIR}"
# ... cp anything else you want in the DMG - documentation, etc.

pushd "${STAGING_DIR}"

# strip the executable
echo "Stripping ${APP_EXE}..."
strip -u -r "${APP_EXE}"

# compress the executable if we have upx in PATH
#  UPX: http://upx.sourceforge.net/
if hash upx 2>/dev/null; then
   echo "Compressing (UPX) ${APP_EXE}..."
   upx -9 "${APP_EXE}"
fi

# ... perform any other stripping/compressing of libs and executables

popd

#------------- Updated section to support creating a dmg in macOS 10.13+ -------------#
# Changes made by Carlos Matos <cmatos@redhat.com
# Issues identified when trying to port CI from Travis to Github Actions. Using macOS 10.14+
# would cause the CI job to fail due to security enhancements made after High Sierra. This
# was essentially causing the original applescript to timeout after it's default 2 minute waiting
# period. After making several attempts to work around this issue - it became clear that this was
# going to take too much effort - if it even would work at all. I began looking at alternative
# solutions, which lead me to a couple of open source projects created by people who simply wanted
# to make the process of creating a dmg easier. After testing dmgbuild and appdmg, I settled with
# appdmg since it was easy to port our existing configuration to it.
cat << EOF > scapwb.json
{
    "title": "SCAP Workbench",
    "background": "${DMG_BACKGROUND_IMG}",
    "format": "UDZO",
    "window": { "position": { "x": 300, "y": 300 } },
    "contents": [
        { "x": 360, "y": 225, "type": "link", "path": "/Applications" },
        { "x": 160, "y": 225, "type": "file", "path": "${STAGING_DIR}/${APP_NAME}.app" }
    ]
}
EOF

echo "Creating customized DMG image..."
appdmg scapwb.json ${DMG_FINAL}

echo 'Done.'

exit