Deploy ArchiCAD hotfixes silently, from a URL

achotfix.sh

#! /usr/bin/env bash
# borrowed from @filipp's gist: https://gist.github.com/filipp/8975071
# sh <(curl -fSsk https://gist.githubusercontent.com/filipp/8975071/raw) https://example.com/hotfix.dmg
MOUNTPOINT=/tmp/InstallACFix
CACHEDIR=$(getconf DARWIN_USER_CACHE_DIR)

if [[ $# -eq 0 ]]; then
    echo "Usage: $(basename "$0")" url_to_dmg 2>&1
    exit 0
else
    hotfixURL=$1
    dmgFileName=$(basename "$hotfixURL")
    dmgPath="$CACHEDIR/$dmgFileName"
fi

echo "Downloading $dmgFileName..."
/usr/bin/curl --retry 3 "$hotfixURL" -o "$dmgPath" 

if [[ $? -gt 0 ]]; then
    echo "Failed to download hotfix image" 2>&1
    exit 1
fi

if [[ ! -d $MOUNTPOINT ]]; then
    /bin/mkdir $MOUNTPOINT
fi

/usr/bin/hdiutil attach -nobrowse "$dmgPath" -mountpoint $MOUNTPOINT > /dev/null 2>&1

if [[ $? -gt 0 ]]; then
    echo "Failed to mount hotfix image" 2>&1
    exit 1
fi

$MOUNTPOINT/ArchiCAD*.app/Contents/MacOS/ArchiCAD* -silent
/usr/bin/hdiutil detach $MOUNTPOINT
/bin/rm -f "$dmgPath"

exit 0