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#!/bin/bash | |
## Install Java Development Kit (JDK) without all the junk | |
# Strips the non-jdk stuff (Updater, Applet, Web Start, file associations) out of the installer. | |
# NB: this also removes the pre-installation checks and will install the JDK unconditionally | |
# to /Library/Java/JavaVirtualMachines/ with possible but unlikely dire consequences | |
## Usage | |
set -e | |
if [[ -z "$2" ]] ; then | |
echo 'usage: ./strip-jdk-installer dmgin dmgout' | |
exit 0 | |
fi | |
if [ ! -f "$1" ]; then | |
echo "$1 does not exist" | |
exit 0 | |
fi | |
if [ -f "$2" ]; then | |
echo "$2 already exists" | |
exit 0 | |
fi | |
TEMP_DIR="$(mktemp -d)/jdk" | |
## Unpack | |
INSTALLER_VOL=$(hdiutil attach "$1" | grep -oe "/Volumes/.*") | |
INSTALLER_PKG=$(ls -1 "$INSTALLER_VOL" | grep -oe "^.*pkg$") | |
pkgutil --expand "$INSTALLER_VOL/$INSTALLER_PKG" "$TEMP_DIR" | |
hdiutil detach "$INSTALLER_VOL" > /dev/null | |
JDK_PKG=$(ls -1 "$TEMP_DIR" | grep -oe "^jdk.*pkg$") | |
## Strip JDK | |
# disable Java Flight Recorder (JFR) | |
sed -i '' '/^\(\.\/\)/d' "$TEMP_DIR/$JDK_PKG/Scripts/postinstall" | |
rm "$TEMP_DIR/$JDK_PKG/Scripts/Tools" | |
# disable Java Mission Control (JMC) | |
sed -i '' '/com.oracle.jmc/d' "$TEMP_DIR/$JDK_PKG/PackageInfo" | |
## Repackage | |
INSTALLER_NAME=$(echo "$INSTALLER_PKG" | grep -oe "[^.]*") | |
mkdir -p "$TEMP_DIR/installer" | |
pkgutil --flatten "$TEMP_DIR/$JDK_PKG" "$TEMP_DIR/installer/$INSTALLER_PKG" | |
hdiutil create -volname "$INSTALLER_NAME" -srcfolder "$TEMP_DIR/installer" $2 | |
rm -rf "$TEMP_DIR" | |
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