chore(NA): bazel machinery installation on kbn bootstrap

.bazeliskversion

@@ -0,0 +1 @@
+1.7.3

.bazelversion

@@ -0,0 +1 @@
+4.0.0

WORKSPACE.bazel

@@ -0,0 +1,3 @@
+workspace(
+    name = "kibana",
+)

package.json

@@ -346,6 +346,7 @@
     "@babel/register": "^7.12.10",
     "@babel/traverse": "^7.12.12",
     "@babel/types": "^7.12.12",
+    "@bazel/ibazel": "^0.14.0",
     "@cypress/snapshot": "^2.1.7",
     "@cypress/webpack-preprocessor": "^5.5.0",
     "@elastic/apm-rum": "^5.6.1",

packages/kbn-pm/src/commands/bootstrap.ts

@@ -17,19 +17,24 @@ import { getAllChecksums } from '../utils/project_checksums';
 import { BootstrapCacheFile } from '../utils/bootstrap_cache_file';
 import { readYarnLock } from '../utils/yarn_lock';
 import { validateDependencies } from '../utils/validate_dependencies';
+import { installBazelTools } from '../utils/bazel';
 
 export const BootstrapCommand: ICommand = {
   description: 'Install dependencies and crosslink projects',
   name: 'bootstrap',
 
-  async run(projects, projectGraph, { options, kbn }) {
+  async run(projects, projectGraph, { options, kbn, rootPath }) {
     const batchedProjects = topologicallyBatchProjects(projects, projectGraph);
     const kibanaProjectPath = projects.get('kibana')?.path;
     const extraArgs = [
       ...(options['frozen-lockfile'] === true ? ['--frozen-lockfile'] : []),
       ...(options['prefer-offline'] === true ? ['--prefer-offline'] : []),
     ];
 
+    // Install bazel machinery tools if needed
+    await installBazelTools(rootPath);
+
+    // Install monorepo npm dependencies
     for (const batch of batchedProjects) {
       for (const project of batch) {
         const isExternalPlugin = project.path.includes(`${kibanaProjectPath}${sep}plugins`);

packages/kbn-pm/src/utils/bazel/index.ts

@@ -0,0 +1,9 @@
+/*
+ * Copyright Elasticsearch B.V. and/or licensed to Elasticsearch B.V. under one
+ * or more contributor license agreements. Licensed under the Elastic License
+ * and the Server Side Public License, v 1; you may not use this file except in
+ * compliance with, at your election, the Elastic License or the Server Side
+ * Public License, v 1.
+ */
+
+export * from './install_tools';

packages/kbn-pm/src/utils/bazel/install_tools.ts

@@ -0,0 +1,69 @@
+/*
+ * Copyright Elasticsearch B.V. and/or licensed to Elasticsearch B.V. under one
+ * or more contributor license agreements. Licensed under the Elastic License
+ * and the Server Side Public License, v 1; you may not use this file except in
+ * compliance with, at your election, the Elastic License or the Server Side
+ * Public License, v 1.
+ */
+
+import { resolve } from 'path';
+import { spawn } from '../child_process';
+import { readFile } from '../fs';
+import { log } from '../log';
+
+export interface BazelToolsVersion {
+  bazelisk: string;
+  bazel: string;
+}
+
+async function readBazelToolsVersionFile(repoRootPath: string, versionFilename: string) {
+  const version = (await readFile(resolve(repoRootPath, versionFilename)))
+    .toString()
+    .split('\n')[0];
+
+  if (!version) {
+    throw new Error(`${versionFilename} file do not contain any version set`);
+  }
+
+  return version;
+}
+
+async function readBazelToolsVersion(repoRootPath: string) {
+  try {
+    const bazeliskVersion = await readBazelToolsVersionFile(repoRootPath, '.bazeliskversion');
+    const bazelVersion = await readBazelToolsVersionFile(repoRootPath, '.bazelversion');
+
+    return {
+      bazelisk: bazeliskVersion,
+      bazel: bazelVersion,
+    } as BazelToolsVersion;
+  } catch (e) {
+    throw new Error(`[bazel_tools] Failed on reading bazel tools versions\n ${e}`);
+  }
+}
+
+export async function installBazelTools(repoRootPath: string) {
+  log.debug(`[bazel_tools] reading bazel tools versions from version files`);
+  const bazelToolsVersions = await readBazelToolsVersion(repoRootPath);
+
+  // Check what globals are installed
+  log.debug(`[bazel_tools] verify if bazelisk is installed`);
+  const { stdout } = await spawn('yarn', ['global', 'list'], { stdio: 'pipe' });
+
+  // Install bazelisk if not installed
+  if (!stdout.includes(`@bazel/bazelisk@${bazelToolsVersions.bazelisk}`)) {
+    log.info(`[bazel_tools] installing Bazel tools`);
+
+    log.debug(
+      `[bazel_tools] bazelisk is not installed. Installing @bazel/bazelisk@${bazelToolsVersions.bazelisk} and bazel@${bazelToolsVersions.bazel}`
+    );
+    await spawn('yarn', ['global', 'add', `@bazel/bazelisk@${bazelToolsVersions.bazelisk}`], {
+      env: {
+        USE_BAZEL_VERSION: bazelToolsVersions.bazel,
+      },
+      stdio: 'pipe',
+    });
+  }
+
+  log.success(`[bazel_tools] all bazel tools are correctly installed`);
+}

src/dev/precommit_hook/casing_check_config.js

@@ -65,6 +65,10 @@ export const IGNORE_FILE_GLOBS = [
   'x-pack/test/fleet_api_integration/apis/fixtures/test_packages/**/*',
 
   '.teamcity/**/*',
+
+  // Bazel default files
+  '**/WORKSPACE.bazel',
+  '**/BUILD.bazel',
 ];
 
 /**

yarn.lock

@@ -1997,6 +1997,11 @@
   resolved "https://registry.yarnpkg.com/@base2/pretty-print-object/-/pretty-print-object-1.0.0.tgz#860ce718b0b73f4009e153541faff2cb6b85d047"
   integrity sha512-4Th98KlMHr5+JkxfcoDT//6vY8vM+iSPrLNpHhRyLx2CFYi8e2RfqPLdpbnpo0Q5lQC5hNB79yes07zb02fvCw==
 
+"@bazel/ibazel@^0.14.0":
+  version "0.14.0"
+  resolved "https://registry.yarnpkg.com/@bazel/ibazel/-/ibazel-0.14.0.tgz#86fa0002bed2ce1123b7ad98d4dd4623a0d93244"
+  integrity sha512-s0gyec6lArcRDwVfIP6xpY8iEaFpzrSpyErSppd3r2O49pOEg7n6HGS/qJ8ncvme56vrDk6crl/kQ6VAdEO+rg==
+
 "@bcoe/v8-coverage@^0.2.3":
   version "0.2.3"
   resolved "https://registry.yarnpkg.com/@bcoe/v8-coverage/-/v8-coverage-0.2.3.tgz#75a2e8b51cb758a7553d6804a5932d7aace75c39"