Implement update shim

ci_tooling/build_module/autopkg.py

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+from pathlib import Path
+
+from opencore_legacy_patcher.support import subprocess_wrapper
+
+class GenerateAutoPkg:
+
+    def __init__(self) -> None:
+        self._package_build_bin = "/usr/local/bin/packagesbuild"
+        self._autopkg_config    = "./ci_tooling/autopkg/AutoPkg-Assets-Setup.pkgproj"
+
+
+    def generate(self) -> None:
+        """
+        Generate AutoPkg Assets
+        """
+        print("Generating AutoPkg Assets")
+        subprocess_wrapper.run_and_verify([self._package_build_bin, self._autopkg_config])

ci_tooling/build_module/shim.py

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+
+
+from pathlib import Path
+
+from opencore_legacy_patcher.support import subprocess_wrapper
+
+
+class GenerateShim:
+
+    def __init__(self) -> None:
+        self._shim_path = "./ci_tooling/update_shim/OpenCore-Patcher.app"
+        self._shim_pkg  = f"{self._shim_path}/Contents/Resources/OpenCore-Patcher.pkg"
+
+        self._build_pkg   = "./dist/OpenCore-Patcher.pkg"
+        self._output_shim = "./dist/OpenCore-Patcher (Shim).app"
+
+
+    def generate(self) -> None:
+        """
+        Generate Update Shim
+        """
+        print("Generating Update Shim")
+        if Path(self._shim_pkg).exists():
+            Path(self._shim_pkg).unlink()
+
+        subprocess_wrapper.run_and_verify(["/bin/cp", "-R", self._build_pkg, self._shim_pkg])
+
+        if Path(self._output_shim).exists():
+            Path(self._output_shim).unlink()
+
+        subprocess_wrapper.run_and_verify(["/bin/cp", "-R", self._shim_path, self._output_shim])

ci_tooling/update_shim/OpenCore-Patcher.app/Contents/Info.plist

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+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>CFBundleDisplayName</key>
+	<string>OpenCore-Patcher</string>
+	<key>CFBundleExecutable</key>
+	<string>OpenCore-Patcher</string>
+	<key>CFBundleIconFile</key>
+	<string>OC-Patcher.icns</string>
+	<key>CFBundleIdentifier</key>
+	<string>com.dortania.opencore-legacy-patcher-helper</string>
+	<key>CFBundleInfoDictionaryVersion</key>
+	<string>6.0</string>
+	<key>CFBundleName</key>
+	<string>OpenCore-Patcher</string>
+	<key>CFBundlePackageType</key>
+	<string>APPL</string>
+	<key>LSMinimumSystemVersion</key>
+	<string>10.10.0</string>
+	<key>NSHighResolutionCapable</key>
+	<true/>
+	<key>NSHumanReadableCopyright</key>
+	<string>Copyright © 2020-2023 Dortania</string>
+	<key>LSUIElement</key>
+	<true/>
+</dict>
+</plist>

ci_tooling/update_shim/README.md

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+# OpenCore-Patcher Update Shim
+
+To handle the new PKG installation method, old versions of OpenCore Legacy Patcher updating to newer versions will still require 'OpenCore-Patcher.app' to be available for download.
+
+Thus the goal of this app is to install an embedded PKG under ./OpenCore-Patcher.app/Contents/Resources/OpenCore-Patcher.pkg to handle the update process.
+
+Source is available at:
+* https://github.com/dortania/OCLP-Helper