Automate darwin install

lib/install/macos.js

@@ -1,9 +1,100 @@
 'use strict';
 
-exports.install = async function() {
-    throw new Error('macos install not implemented');
+const { exec: _exec } = require('child_process');
+const { resolve } = require('path');
+const { promisify } = require('util');
+
+const LSREGISTER_EXECUTABLE_PATH =
+  '/System/Library/Frameworks/CoreServices.framework/Versions/Current/Frameworks/LaunchServices.framework/Versions/Current/Support/lsregister';
+const APPLICATION_NAME = 'ATDriverGenericMacOS.app';
+const EXTENSION_IDENTIFIER = 'com.bocoup.ATDriverGenericMacOS.ATDriverGenericMacOSExtension';
+const VOICE_IDENTIFIER =
+  'com.bocoup.ATDriverGenericMacOS.ATDriverGenericMacOSExtension.ATDriverGenericMacOSExtension';
+const SYSTEM_VOICE_IDENTIFIER = 'com.apple.Fred';
+const PLUGIN_TRIPLET_IDENTIFIER = 'ausp atdg BOCU';
+
+const exec = promisify(_exec);
+
+/** @typedef {import('child_process').ExecOptions} ExecOptions */
+
+/**
+ * @returns {Promise<void>}
+ */
+exports.install = async function () {
+  const options = await getExecOptions();
+
+  if (await isInstalled()) {
+    throw new Error('Already installed');
+  }
+
+  await removeQuarantine(options);
+  await registerExtensions(options);
+  await enableExtension();
+  await setSystemVoice(VOICE_IDENTIFIER);
 };
 
-exports.uninstall = async function() {
-    throw new Error('macos uninstall not implemented');
+/**
+ * @returns {Promise<void>}
+ */
+exports.uninstall = async function () {
+  const options = await getExecOptions();
+
+  if (!(await isInstalled())) {
+    throw new Error('Not installed');
+  }
+
+  await setSystemVoice(SYSTEM_VOICE_IDENTIFIER);
+  await unregisterExtensions(options);
 };
+
+const isInstalled = async function () {
+  const { stdout } = await exec(`auval -v ${PLUGIN_TRIPLET_IDENTIFIER}`);
+  return /ATDriverGenericMacOSExtension/.test(stdout);
+};
+
+/**
+ * @returns {Promise<ExecOptions>}
+ */
+const getExecOptions = async function () {
+  return {
+    cwd: resolve(__dirname, '../../Release/macos'),
+  };
+};
+
+/**
+ * @param {ExecOptions} options
+ * @returns {Promise<void>}
+ */
+async function removeQuarantine(options) {
+  await exec(`xattr -r -d com.apple.quarantine ${APPLICATION_NAME}`, options);
+}
+
+/**
+ * @param {ExecOptions} options
+ * @returns {Promise<void>}
+ */
+async function registerExtensions(options) {
+  await exec(`${LSREGISTER_EXECUTABLE_PATH} -f -R -trusted ${APPLICATION_NAME}`, options);
+}
+
+/**
+ * @param {ExecOptions} options
+ * @returns {Promise<void>}
+ */
+async function unregisterExtensions(options) {
+  await exec(`${LSREGISTER_EXECUTABLE_PATH} -f -R -trusted -u ${APPLICATION_NAME}`, options);
+}
+
+async function enableExtension() {
+  await exec(`pluginkit -e use -i ${EXTENSION_IDENTIFIER}`);
+}
+
+/**
+ * @param {string} voice
+ * @returns {Promise<void>}
+ */
+async function setSystemVoice(voice) {
+  await exec(
+    `defaults write com.apple.Accessibility SpeechVoiceIdentifierForLanguage '{2 = {en = "${voice}";};}`,
+  );
+}