This changes the Common.Worker to create Workers that use the module scope rather than the global scope. It allows us to use es-imports, which consequently allows us to remove the bundling during the build step. This should hopefully improve the Ninja non-determinism that we were facing when making changes to files that are used in the various workers. Bug: 1006759 Change-Id: I7ac209817b1576d2accd790f1bf7ef6a658f5605 Fixed: 1013129 Reviewed-on: https://chromium-review.googlesource.com/c/devtools/devtools-frontend/+/1981615 Commit-Queue: Tim van der Lippe <tvanderlippe@chromium.org> Reviewed-by: Paul Lewis <aerotwist@chromium.org>
DevTools Scripts
Development workflow scripts
These are scripts that can be useful to run independently as you're working on Chrome DevTools front-end.
The newer scripts such as for testing and hosted mode are written in Node.js, which has become the standard toolchain for web apps. The older scripts such as building (e.g. bundling and minifying) are written in Python, which has first-class support in Chromium's infrastructure.
Overview
Folders
- build - Python package for generating DevTools debug and release mode
- chrome_debug_launcher - automagically finds Chrome Canary and launches it with debugging flags (e.g. remote debugging port)
- closure - see section on Closure Compiler below
- gulp - experimental build process written in node.js & gulp to remove the dependency on Chromium-specific build tools (i.e. gn and ninja)
- hosted_mode - run DevTools on a localhost development server
- jsdoc_validator - enforces the use of Closure type annotations
Python Scripts
- compile_frontend.py - runs closure compiler to do static type analysis
- Note: the compiled outputs are not actually used to run DevTools
- lint_javascript.py - run eslint
- optimize_svg_images.py - manually run when changing svg images
Node.js scripts
The easiest way to run the node.js scripts is to use npm run which displays all the commands. For more information on the specific npm run commands, take a look at the primary devtools front-end readme (../readme.md).
Closure
DevTools manually rolls the closure compiler to ./closure. If you manually roll closure compiler, you will need to re-generate the closure_runner (in ./closure) and jsdoc_validator custom jars using the python scripts in their respective directory.