devops: show package names instead of missing libs on Ubuntu 18.04

This patch starts putting package names to install on Ubuntu instead
of missing dependencies list.

The mapping of library to package name is obtained using the following
script: https://gist.github.com/aslushnikov/2766200430228c3700537292fccad064

References microsoft#2745

Author: aslushnikov

src/server/validateDependencies.ts

@@ -24,6 +24,7 @@ const accessAsync = util.promisify(fs.access.bind(fs));
 const checkExecutable = (filePath: string) => accessAsync(filePath, fs.constants.X_OK).then(() => true).catch(e => false);
 const statAsync = util.promisify(fs.stat.bind(fs));
 const readdirAsync = util.promisify(fs.readdir.bind(fs));
+const readFileAsync = util.promisify(fs.readFile.bind(fs));
 
 export async function validateDependencies(browserPath: string, browser: BrowserDescriptor) {
   // We currently only support Linux.
@@ -34,15 +35,49 @@ export async function validateDependencies(browserPath: string, browser: Browser
   for (const directoryPath of directoryPaths)
     lddPaths.push(...(await executablesOrSharedLibraries(directoryPath)));
   const allMissingDeps = await Promise.all(lddPaths.map(lddPath => missingFileDependencies(lddPath)));
-  const missingDeps = new Set();
+  const missingDeps: Set<string> = new Set();
   for (const deps of allMissingDeps) {
     for (const dep of deps)
       missingDeps.add(dep);
   }
   if (!missingDeps.size)
     return;
-  const deps = [...missingDeps].sort().map(dep => '   ' + dep).join('\n');
-  throw new Error('Host system is missing the following dependencies to run browser\n' + deps);
+  // Check Ubuntu version.
+  const missingPackages = new Set();
+
+  const ubuntuVersion = await getUbuntuVersion();
+  if (ubuntuVersion === '18.04') {
+    // Translate missing dependencies to package names to install with apt.
+    for (const missingDep of missingDeps) {
+      const packageName = LIBRARY_TO_PACKAGE_NAME_UBUNTU_18_04[missingDep];
+      if (packageName) {
+        missingPackages.add(packageName);
+        missingDeps.delete(missingDep);
+      }
+    }
+  }
+
+  let missingPackagesMessage = '';
+  if (missingPackages.size) {
+    missingPackagesMessage = [
+      `  Install missing packages with:`,
+      `      apt-get install ${[...missingPackages].join('\\\n          ')}`,
+      ``,
+      ``,
+    ].join('\n');
+  }
+
+  let missingDependenciesMessage = '';
+  if (missingDeps.size) {
+    const header = missingPackages.size ? `Missing libraries we didn't find packages for:` : `Missing libraries are:`;
+    missingDependenciesMessage = [
+      `  ${header}`,
+      `      ${[...missingDeps].join('\n      ')}`,
+      ``,
+    ].join('\n');
+  }
+
+  throw new Error('Host system is missing dependencies!\n\n' + missingPackagesMessage + missingDependenciesMessage);
 }
 
 async function executablesOrSharedLibraries(directoryPath: string): Promise<string[]> {
@@ -86,3 +121,109 @@ function lddAsync(filePath: string): Promise<{stdout: string, stderr: string, co
     ldd.on('close', code => resolve({stdout, stderr, code}));
   });
 }
+
+async function getUbuntuVersion(): Promise<string> {
+  const osRelease = await readFileAsync('/etc/os-release', 'utf8').catch(e => '');
+  if (!osRelease)
+    return '';
+  const fields = new Map();
+  for (const line of osRelease.split('\n')) {
+    const tokens = line.split('=');
+    const name = tokens.shift();
+    let value = tokens.join('=').trim();
+    if (value.startsWith('"') && value.endsWith('"'))
+      value = value.substring(1, value.length - 1);
+    if (!name)
+      continue;
+    fields.set(name.toLowerCase(), value);
+  }
+  if (!fields.get('name') || fields.get('name').toLowerCase() !== 'ubuntu')
+    return '';
+  return fields.get('version_id') || '';
+}
+
+// This list is generated with https://gist.github.com/aslushnikov/2766200430228c3700537292fccad064
+const LIBRARY_TO_PACKAGE_NAME_UBUNTU_18_04: { [s: string]: string} = {
+  'libEGL.so.1': 'libegl1',
+  'libGL.so.1': 'libgl1',
+  'libX11-xcb.so.1': 'libx11-xcb1',
+  'libX11.so.6': 'libx11-6',
+  'libXcomposite.so.1': 'libxcomposite1',
+  'libXcursor.so.1': 'libxcursor1',
+  'libXdamage.so.1': 'libxdamage1',
+  'libXext.so.6': 'libxext6',
+  'libXfixes.so.3': 'libxfixes3',
+  'libXi.so.6': 'libxi6',
+  'libXrandr.so.2': 'libxrandr2',
+  'libXrender.so.1': 'libxrender1',
+  'libXt.so.6': 'libxt6',
+  'libXtst.so.6': 'libxtst6',
+  'libasound.so.2': 'libasound2',
+  'libatk-1.0.so.0': 'libatk1.0-0',
+  'libatk-bridge-2.0.so.0': 'libatk-bridge2.0-0',
+  'libatspi.so.0': 'libatspi2.0-0',
+  'libbrotlidec.so.1': 'libbrotli1',
+  'libcairo-gobject.so.2': 'libcairo-gobject2',
+  'libcairo.so.2': 'libcairo2',
+  'libcups.so.2': 'libcups2',
+  'libdbus-1.so.3': 'libdbus-1-3',
+  'libdbus-glib-1.so.2': 'libdbus-glib-1-2',
+  'libdrm.so.2': 'libdrm2',
+  'libenchant.so.1': 'libenchant1c2a',
+  'libepoxy.so.0': 'libepoxy0',
+  'libfontconfig.so.1': 'libfontconfig1',
+  'libfreetype.so.6': 'libfreetype6',
+  'libgbm.so.1': 'libgbm1',
+  'libgdk-3.so.0': 'libgtk-3-0',
+  'libgdk-x11-2.0.so.0': 'libgtk2.0-0',
+  'libgdk_pixbuf-2.0.so.0': 'libgdk-pixbuf2.0-0',
+  'libgio-2.0.so.0': 'libglib2.0-0',
+  'libglib-2.0.so.0': 'libglib2.0-0',
+  'libgmodule-2.0.so.0': 'libglib2.0-0',
+  'libgobject-2.0.so.0': 'libglib2.0-0',
+  'libgstapp-1.0.so.0': 'libgstreamer-plugins-base1.0-0',
+  'libgstaudio-1.0.so.0': 'libgstreamer-plugins-base1.0-0',
+  'libgstbase-1.0.so.0': 'libgstreamer1.0-0',
+  'libgstcodecparsers-1.0.so.0': 'libgstreamer-plugins-bad1.0-0',
+  'libgstfft-1.0.so.0': 'libgstreamer-plugins-base1.0-0',
+  'libgstgl-1.0.so.0': 'libgstreamer-gl1.0-0',
+  'libgstpbutils-1.0.so.0': 'libgstreamer-plugins-base1.0-0',
+  'libgstreamer-1.0.so.0': 'libgstreamer1.0-0',
+  'libgsttag-1.0.so.0': 'libgstreamer-plugins-base1.0-0',
+  'libgstvideo-1.0.so.0': 'libgstreamer-plugins-base1.0-0',
+  'libgthread-2.0.so.0': 'libglib2.0-0',
+  'libgtk-3.so.0': 'libgtk-3-0',
+  'libgtk-x11-2.0.so.0': 'libgtk2.0-0',
+  'libharfbuzz-icu.so.0': 'libharfbuzz-icu0',
+  'libharfbuzz.so.0': 'libharfbuzz0b',
+  'libhyphen.so.0': 'libhyphen0',
+  'libicui18n.so.60': 'libicu60',
+  'libicuuc.so.60': 'libicu60',
+  'libjpeg.so.8': 'libjpeg-turbo8',
+  'libnotify.so.4': 'libnotify4',
+  'libnspr4.so': 'libnspr4',
+  'libnss3.so': 'libnss3',
+  'libnssutil3.so': 'libnss3',
+  'libopenjp2.so.7': 'libopenjp2-7',
+  'libopus.so.0': 'libopus0',
+  'libpango-1.0.so.0': 'libpango-1.0-0',
+  'libpangocairo-1.0.so.0': 'libpangocairo-1.0-0',
+  'libpangoft2-1.0.so.0': 'libpangoft2-1.0-0',
+  'libpng16.so.16': 'libpng16-16',
+  'libsecret-1.so.0': 'libsecret-1-0',
+  'libsmime3.so': 'libnss3',
+  'libssl3.so': 'libnss3',
+  'libwayland-client.so.0': 'libwayland-client0',
+  'libwayland-egl.so.1': 'libwayland-egl1',
+  'libwayland-server.so.0': 'libwayland-server0',
+  'libwebp.so.6': 'libwebp6',
+  'libwebpdemux.so.2': 'libwebpdemux2',
+  'libwoff2dec.so.1.0.2': 'libwoff1',
+  'libxcb-dri3.so.0': 'libxcb-dri3-0',
+  'libxcb-shm.so.0': 'libxcb-shm0',
+  'libxcb.so.1': 'libxcb1',
+  'libxkbcommon.so.0': 'libxkbcommon0',
+  'libxml2.so.2': 'libxml2',
+  'libxslt.so.1': 'libxslt1.1',
+};
+