feat: add inject-bundle-id command to CLI

[eskirk]

For applications that don't use Webpack or Rollup, or in cases where you need to add the bundle ID to already built JavaScript files, you can use the inject-bundle-id command:

npx faro-cli inject-bundle-id \
  --bundle-id "your-bundle-id" \
  --app-name "your-app-name" \
  --files "dist/**/*.js" \
  --verbose

This command will:

1. Locate all JavaScript files matching the specified glob patterns
2. Check if each file already has a bundle ID snippet
3. Prepend the bundle ID snippet to files that don't have it
4. Export the bundle ID to an environment variable for potential later use with other commands

[Copilot]

Pull Request Overview

This pull request introduces a new CLI command (inject-bundle-id) to add a bundle ID snippet to JavaScript files after they are built, without requiring a bundler like Webpack or Rollup. Key changes include:

• Adding a new function (injectBundleId) to insert the bundle ID snippet into files.
• Creating tests (bundleId.test.ts) to verify snippet injection, skipping files with an existing snippet, and respecting dry run mode.
• Updating the CLI (cli.ts) and README.md to support and document the new inject-bundle-id command.

Reviewed Changes

Copilot reviewed 6 out of 7 changed files in this pull request and generated no comments.

Show a summary per file

File	Description
packages/faro-cli/src/test/index.test.ts	Added teardown logic (afterAll) to reset and unmock modules after tests.
packages/faro-cli/src/test/bundleId.test.ts	New tests covering bundle ID injection behavior and dry run functionality.
packages/faro-cli/src/index.ts	Added core implementation of injectBundleId along with related interfaces and documentation.
packages/faro-cli/src/cli.ts	Integrated the inject-bundle-id command into the CLI with file globbing and verbose logging.
packages/faro-cli/README.md	Updated documentation to include the new command with examples and option details.

Files not reviewed (1)

• packages/faro-cli/package.json: Language not supported

Comments suppressed due to low confidence (1)

packages/faro-cli/src/test/bundleId.test.ts:41

• Consider using fs.rmSync(testDir, { recursive: true }) instead of fs.rmdirSync, as the latter may be deprecated in newer Node versions.

fs.rmdirSync(testDir);