First commit

make_firmwareupdater_pkg.sh

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+#!/bin/sh
+# Based on investigations and work by Pepijn Bruienne
+# Expects a single /Applications/Install macOS High Sierra*.app on disk
+
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+IDENTIFIER="com.foo.FirmwareUpdateStandalone"
+VERSION=1.0
+
+# find the Install macOS High Sierra.app and mount the embedded InstallESD disk image
+echo "Mounting High Sierra ESD disk image..."
+/usr/bin/hdiutil mount /Applications/Install\ macOS\ High\ Sierra*.app/Contents/SharedSupport/InstallESD.dmg
+
+# expand the FirmwareUpdate.pkg so we can copy resources from it
+echo "Expanding FirmwareUpdate.pkg"
+/usr/sbin/pkgutil --expand /Volumes/InstallESD/Packages/FirmwareUpdate.pkg /tmp/FirmwareUpdate
+
+# we don't need the disk image any more
+echo "Ejecting disk image..."
+/usr/bin/hdiutil eject /Volumes/InstallESD
+
+# make a place to stage our pkg resources
+/bin/mkdir -p /tmp/FirmwareUpdateStandalone/scripts
+
+# copy the needed resources
+echo "Copying package resources..."
+/bin/cp /tmp/FirmwareUpdate/Scripts/postinstall_actions/update /tmp/FirmwareUpdateStandalone/scripts/postinstall
+# add an exit 0 at the end of the script
+echo "" >> /tmp/FirmwareUpdateStandalone/scripts/postinstall
+echo "" >> /tmp/FirmwareUpdateStandalone/scripts/postinstall
+echo "exit 0" >> /tmp/FirmwareUpdateStandalone/scripts/postinstall
+/bin/cp -R /tmp/FirmwareUpdate/Scripts/Tools /tmp/FirmwareUpdateStandalone/scripts/
+
+# build the package
+echo "Building standalone package..."
+/usr/bin/pkgbuild --nopayload --scripts /tmp/FirmwareUpdateStandalone/scripts --identifier "$IDENTIFIER" --version "$VERSION" /tmp/FirmwareUpdateStandalone/FirmwareUpdateStandalone.pkg
+
+# clean up
+/bin/rm -r /tmp/FirmwareUpdate
+/bin/rm -r /tmp/FirmwareUpdateStandalone/scripts