fix: automates latest-rc build of sfdx-cli

src/commands/cli/latestrc/build.ts

@@ -0,0 +1,77 @@
+/*
+ * Copyright (c) 2020, salesforce.com, inc.
+ * All rights reserved.
+ * Licensed under the BSD 3-Clause license.
+ * For full license text, see LICENSE.txt file in the repo root or https://opensource.org/licenses/BSD-3-Clause
+ */
+import { SfdxCommand } from '@salesforce/command';
+import { exec, ExecOptions } from 'shelljs';
+import { ensureString } from '@salesforce/ts-types';
+import { Env } from '@salesforce/kit';
+import { Octokit } from '@octokit/core';
+import { bold } from 'chalk';
+import { SinglePackageRepo } from '../../../repository';
+
+export default class build extends SfdxCommand {
+  public async run(): Promise<void> {
+    const auth = ensureString(
+      new Env().getString('GH_TOKEN') ?? new Env().getString('GITHUB_TOKEN'),
+      'GH_TOKEN is required to be set in the environment'
+    );
+    // get the current version and implement the patch version for a default rc build
+    const repo = await SinglePackageRepo.create({ ux: this.ux });
+
+    const nextRCVersion = repo.package.getNextRCVersion();
+    repo.nextVersion = nextRCVersion;
+
+    this.ux.log(`starting on main and will checkout ${repo.nextVersion}`);
+
+    // start the latest-rc build process on a clean main branch
+    this.exec('git checkout main');
+    this.exec('git pull');
+    this.exec(`git checkout -b ${nextRCVersion}`);
+
+    // bump the version in the pjson to the new latest-rc
+    this.ux.log(`setting the version to ${nextRCVersion}`);
+    repo.package.setNextVersion(nextRCVersion);
+    repo.package.packageJson.version = nextRCVersion;
+
+    // bump resolution deps
+    this.ux.log('bumping resolutions in the package.json to their "latest"');
+    repo.package.bumpResolutions('latest');
+
+    // pin the pinned dependencies
+    this.ux.log('pinning dependencies in pinnedDependencies to "latest-rc"');
+    repo.package.pinDependencyVersions('latest-rc');
+    repo.package.writePackageJson();
+
+    // compare the command-snapshot and regenerate if they're changes, they'll be part of the PR
+    try {
+      this.exec('yarn snapshot-compare', { fatal: true, silent: true });
+    } catch {
+      this.exec('yarn snapshot-generate');
+    }
+
+    this.exec('yarn install');
+
+    // commit package.json/yarn.lock and potentially command-snapshot changes
+    this.exec('git add .');
+    this.exec(`git commit -m "chore(latest-rc): bump to ${nextRCVersion}"`);
+    this.exec(`git push --set-upstream origin ${nextRCVersion}`);
+
+    const octokit = new Octokit({ auth });
+    await octokit.request('POST /repos/salesforcecli/sfdx-cli/pulls', {
+      owner: 'salesforcecli',
+      repo: 'sfdx-cli',
+      head: nextRCVersion,
+      base: 'main',
+      title: `Release v${nextRCVersion} as latest-rc`,
+      body: 'Building latest-rc',
+    });
+  }
+
+  private exec(cmd: string, options: ExecOptions = { silent: true }): void {
+    this.log(bold(cmd));
+    exec(cmd, options);
+  }
+}

src/package.ts

@@ -9,7 +9,7 @@ import * as semver from 'semver';
 import { cli } from 'cli-ux';
 import { exec, pwd } from 'shelljs';
 import { fs, Logger, SfdxError } from '@salesforce/core';
-import { AsyncOptionalCreatable, findKey } from '@salesforce/kit';
+import { AsyncOptionalCreatable, findKey, toNumber } from '@salesforce/kit';
 import { AnyJson, get, Nullable } from '@salesforce/ts-types';
 import { Registry } from './registry';
 
@@ -21,6 +21,7 @@ export type PackageJson = {
   scripts: Record<string, string>;
   files?: string[];
   pinnedDependencies?: string[];
+  resolutions?: Record<string, string>;
   repository?: string;
   sfdx?: PackageJsonSfdxProperty;
 } & AnyJson;
@@ -123,6 +124,31 @@ export class Package extends AsyncOptionalCreatable {
     fs.writeJsonSync(pkgJsonPath, this.packageJson);
   }
 
+  public bumpResolutions(tag: string): void {
+    if (!this.packageJson.resolutions) {
+      throw new SfdxError('Bumping resolutions requires property "resolutions" to be present in package.json');
+    }
+
+    Object.keys(this.packageJson.resolutions).map((key: string) => {
+      const result = exec(`npm view ${key} dist-tags ${this.registry.getRegistryParameter()} --json`, {
+        silent: true,
+      });
+      const versions = JSON.parse(result.stdout) as Record<string, string>;
+      this.packageJson.resolutions[key] = versions[tag];
+    });
+  }
+
+  public getNextRCVersion(): string {
+    const result = exec(`npm view ${this.packageJson.name} dist-tags ${this.registry.getRegistryParameter()} --json`, {
+      silent: true,
+    });
+    const versions = JSON.parse(result.stdout) as Record<string, string>;
+
+    const versionParts = versions['latest-rc'].split('.');
+    const newPatch = toNumber(versionParts[1]) + 1;
+    return `${versionParts[0]}.${newPatch}.0`;
+  }
+
   public pinDependencyVersions(targetTag: string): ChangedPackageVersions {
     // get the list of dependencies to hardcode
     if (!this.packageJson.pinnedDependencies) {