feat: Add common android checks

lib/doctor/checks.js

@@ -0,0 +1,197 @@
+import {ok, nok, okOptional, nokOptional, resolveExecutablePath} from './utils';
+import {system, fs, logger} from '@appium/support';
+import path from 'path';
+import '@colors/colors';
+import {getAndroidBinaryPath, getSdkRootFromEnv} from 'appium-adb';
+
+const log = logger.getLogger('AndroidDoctor');
+
+const JAVA_HOME_VAR_NAME = system.isWindows() ? '%JAVA_HOME%' : '$JAVA_HOME';
+const ENVIRONMENT_VARS_TUTORIAL_URL = 'https://github.com/appium/java-client/blob/master/docs/environment.md';
+const JAVA_HOME_TUTORIAL = 'https://docs.oracle.com/cd/E21454_01/html/821-2531/inst_jdk_javahome_t.html';
+const ANDROID_SDK_LINK1 = 'https://developer.android.com/studio#cmdline-tools';
+const ANDROID_SDK_LINK2 = 'https://developer.android.com/studio/intro/update#sdk-manager';
+const BUNDLETOOL_RELEASES_LINK = 'https://github.com/google/bundletool/releases/';
+const GSTREAMER_INSTALL_LINK = 'https://gstreamer.freedesktop.org/documentation/installing/index.html?gi-language=c';
+const FFMPEG_INSTALL_LINK = 'https://www.ffmpeg.org/download.html';
+
+/**
+ * @typedef EnvVarCheckOptions
+ * @property {boolean} [expectDir] If set to true then
+ * the path is expected to be a valid folder
+ * @property {boolean} [expectFile] If set to true then
+ * the path is expected to be a valid file
+ */
+
+class EnvVarAndPathCheck {
+  /**
+   * @param {string} varName
+   * @param {EnvVarCheckOptions} [opts={}]
+   */
+  constructor(varName, opts = {}) {
+    this.varName = varName;
+    this.opts = opts;
+  }
+
+  async diagnose() {
+    const varValue = process.env[this.varName];
+    if (!varValue) {
+      return nok(`${this.varName} environment variable is NOT set!`);
+    }
+
+    if (!await fs.exists(varValue)) {
+      let errMsg = `${this.varName} is set to '${varValue}' but this path does not exist!`;
+      if (system.isWindows() && varValue.includes('%')) {
+        errMsg += ` Consider replacing all references to other environment variables with absolute paths.`;
+      }
+      return nok(errMsg);
+    }
+
+    const stat = await fs.stat(varValue);
+    if (this.opts.expectDir && !stat.isDirectory()) {
+      return nok(`${this.varName} is expected to be a valid folder, got a file path instead`);
+    }
+    if (this.opts.expectFile && stat.isDirectory()) {
+      return nok(`${this.varName} is expected to be a valid file, got a folder path instead`);
+    }
+
+    return ok(`${this.varName} is set to: ${varValue}`);
+  }
+
+  async fix() {
+    return (
+      `Make sure the environment variable ${this.varName.bold} is properly configured for the Appium process. ` +
+      `Refer ${ENVIRONMENT_VARS_TUTORIAL_URL} for more details.`
+    );
+  }
+}
+export const androidHomeCheck = new EnvVarAndPathCheck('ANDROID_HOME', {expectDir: true});
+export const javaHomeCheck = new EnvVarAndPathCheck('JAVA_HOME', {expectDir: true});
+
+export class JavaHomeValueCheck {
+  async diagnose() {
+    const envVar = process.env.JAVA_HOME;
+    if (!envVar) {
+      return nok(`${JAVA_HOME_VAR_NAME} environment variable must be set`);
+    }
+
+    const javaBinaryRelativePath = path.join('bin', `java${system.isWindows() ? '.exe' : ''}`);
+    const javaBinary = path.join(envVar, javaBinaryRelativePath);
+    if (!await fs.exists(javaBinary)) {
+      return nok(
+        `${JAVA_HOME_VAR_NAME} is set to an invalid value. ` +
+        `It must be pointing to a folder containing ${javaBinaryRelativePath}`
+      );
+    }
+    return ok(`'${javaBinaryRelativePath}' exists under '${envVar}'`);
+  }
+
+  async fix() {
+    return `Set ${JAVA_HOME_VAR_NAME} environment variable to the root folder path of your local JDK installation. ` +
+      `Read ${JAVA_HOME_TUTORIAL}`;
+  }
+}
+export const javaHomeValueCheck = new JavaHomeValueCheck();
+
+export class AndroidSdkCheck {
+  TOOL_NAMES = ['adb', 'emulator', `apkanalyzer${system.isWindows() ? '.bat' : ''}`];
+
+  async diagnose() {
+    const listOfTools = this.TOOL_NAMES.join(', ');
+    const sdkRoot = getSdkRootFromEnv();
+    if (!sdkRoot) {
+      return nok(
+        `${listOfTools} could not be found because ANDROID_HOME is NOT set!`
+      );
+    }
+
+    log.info(`   Checking ${listOfTools}`);
+    const missingBinaries = [];
+    for (const binary of this.TOOL_NAMES) {
+      try {
+        log.info(`     '${binary}' exists in ${await getAndroidBinaryPath(binary)}`);
+      } catch (e) {
+        missingBinaries.push(binary);
+      }
+    }
+
+    if (missingBinaries.length > 0) {
+      return nok(`${missingBinaries.join(', ')} could NOT be found in '${sdkRoot}'!`);
+    }
+
+    return ok(`${listOfTools} exist in '${sdkRoot}'`);
+  }
+
+  async fix() {
+    return (
+      `Manually install ${'Android SDK'.bold} and set ${'ANDROID_HOME'.bold}. ` +
+      `Read ${[ANDROID_SDK_LINK1, ANDROID_SDK_LINK2].join(' and ')}.`
+    );
+  }
+}
+export const androidSdkCheck = new AndroidSdkCheck();
+
+export class OptionalBundletoolCheck {
+  async diagnose() {
+    const bundletoolPath = await resolveExecutablePath('bundletool.jar');
+    return bundletoolPath
+      ? okOptional(`bundletool.jar is installed at: ${bundletoolPath}`)
+      : nokOptional('bundletool.jar cannot be found');
+  }
+
+  async fix() {
+    return (
+      `${'bundletool.jar'.bold} is used to handle Android App bundles. ` +
+      `Please download the binary from ${BUNDLETOOL_RELEASES_LINK} and store it ` +
+      `to any folder listed in the PATH environment variable. Folders that ` +
+      `are currently present in PATH: ${process.env.PATH}`
+    );
+  }
+}
+export const optionalBundletoolCheck = new OptionalBundletoolCheck();
+
+export class OptionalGstreamerCheck {
+  GSTREAMER_BINARY = `gst-launch-1.0${system.isWindows() ? '.exe' : ''}`;
+  GST_INSPECT_BINARY = `gst-inspect-1.0${system.isWindows() ? '.exe' : ''}`;
+
+  async diagnose() {
+    const gstreamerPath = await resolveExecutablePath(this.GSTREAMER_BINARY);
+    const gstInspectPath = await resolveExecutablePath(this.GST_INSPECT_BINARY);
+
+    return gstreamerPath && gstInspectPath
+      ? okOptional(
+          `${this.GSTREAMER_BINARY} and ${this.GST_INSPECT_BINARY} are installed at: ${gstreamerPath} and ${gstInspectPath}`
+        )
+      : nokOptional(`${this.GSTREAMER_BINARY} and/or ${this.GST_INSPECT_BINARY} cannot be found`);
+  }
+
+  async fix() {
+    return (
+      `${
+        `${this.GSTREAMER_BINARY} and ${this.GST_INSPECT_BINARY}`.bold
+      } are used to stream the screen of the device under test. ` +
+      `Please read ${GSTREAMER_INSTALL_LINK}.`
+    );
+  }
+}
+export const optionalGstreamerCheck = new OptionalGstreamerCheck();
+
+export class OptionalFfmpegCheck {
+  FFMPEG_BINARY = `ffmpeg${system.isWindows() ? '.exe' : ''}`;
+
+  async diagnose() {
+    const ffmpegPath = await resolveExecutablePath(this.FFMPEG_BINARY);
+
+    return ffmpegPath
+      ? okOptional(`${this.FFMPEG_BINARY} exists at '${ffmpegPath}'`)
+      : nokOptional(`${this.FFMPEG_BINARY} cannot be found`);
+  }
+
+  async fix() {
+    return (
+      `${`${this.FFMPEG_BINARY}`.bold} is used to capture screen recordings from the device under test. ` +
+      `Please read ${FFMPEG_INSTALL_LINK}.`
+    );
+  }
+}
+export const optionalFfmpegCheck = new OptionalFfmpegCheck();

lib/doctor/utils.js

@@ -0,0 +1,45 @@
+import {fs} from '@appium/support';
+
+/**
+ * @param {string} message
+ */
+export function ok(message) {
+  return {ok: true, optional: false, message};
+}
+
+/**
+ * @param {string} message
+ */
+export function nok(message) {
+  return {ok: false, optional: false, message};
+}
+
+/**
+ * @param {string} message
+ */
+export function okOptional(message) {
+  return {ok: true, optional: true, message};
+}
+
+/**
+ * @param {string} message
+ */
+export function nokOptional(message) {
+  return {ok: false, optional: true, message};
+}
+
+/**
+ * Return an executable path of cmd
+ *
+ * @param {string} cmd Standard output by command
+ * @return {Promise<string?>} The full path of cmd. `null` if the cmd is not found.
+ */
+export async function resolveExecutablePath(cmd) {
+  try {
+    const executablePath = await fs.which(cmd);
+    if (executablePath && (await fs.exists(executablePath))) {
+      return executablePath;
+    }
+  } catch (err) {}
+  return null;
+}

lib/index.ts

@@ -5,6 +5,7 @@ import {AndroidDriver} from './driver';
 export type * from './commands';
 export {ANDROID_DRIVER_CONSTRAINTS as commonCapConstraints} from './constraints';
 export * from './driver';
+export * as doctor from './doctor/checks';
 export {SETTINGS_HELPER_PKG_ID, default as androidHelpers} from './helpers/android';
 export type * from './helpers/types';
 export {

package.json

@@ -55,6 +55,7 @@
     "singleQuote": true
   },
   "dependencies": {
+    "@colors/colors": "1.6.0",
     "appium-adb": "^11.0.1",
     "appium-chromedriver": "^5.5.1",
     "asyncbox": "^3.0.0",