electron/.devcontainer/README.md
Samuel Attard cd09a54365
build: add basic codespaces configuration (#30528)
* build: @jasonetco said that this will make codespaces work

* tmp

* Codespaces

* Update docker-compose.yml

* Update docker-compose.yml

* tada?

* e use

* do not use pizza...

* point at correct goma file

* use ghcr for codespaces

* pass --yes to npx

* build: use auth.notgoma codespace token auth to auto-auth goma

* build: move build-tools set up to Dockerfile

* build: provide default extensions list

* Fix locale tests

* add vnc support

* use prebuilt devcontainer image

* update docker images

* update docker images

* update docker images

* add docs for codespaces

* chore: update docker images

* build: do not overwrite modified buildtools configs on container rebuilds

* use gn language server

* update docker images

* update docker images

* fill in missing links

Co-authored-by: Codespaces <codespaces@github.com>
2021-08-16 10:33:49 -07:00

59 lines
2.1 KiB
Markdown

# Electron Dev on Codespaces
Welcome to the Codespaces Electron Developer Environment.
## Quick Start
Upon creation of your codespace you should have [build tools](https://github.com/electron/build-tools) installed and an initialized gclient checkout of Electron. In order to build electron you'll need to run the following commands.
```bash
e sync -vv
e build
```
The initial sync will take approximately ~30 minutes and the build will take ~8 minutes. Incremental syncs and incremental builds are substantially quicker.
## Directory Structure
Codespaces doesn't lean very well into gclient based checkouts, the directory structure is slightly strange. There are two locations for the `electron` checkout that both map to the same files under the hood.
```graphql
# Primary gclient checkout container
/workspaces/gclient/*
└─ src/* - # Chromium checkout
└─ electron - # Electron checkout
# Symlinked Electron checkout (identical to the above)
/workspaces/electron
```
## Goma
If you are a maintainer [with Goma access](../docs/development/goma.md) it should be automatically configured and authenticated when you spin up a new codespaces instance. You can validate this by checking `e d goma_auth info` or by checking that your build-tools configuration has a goma mode of `cluster`.
## Running Electron
You can run Electron in a few ways. If you just want to see if it launches:
```bash
# Enter an interactive JS prompt headlessly
xvfb-run e start -i
```
But if you want to actually see Electron you will need to use the built-in VNC capability. If you click "Ports" in codespaces and then open the `VNC web client` forwarded port you should see a web based VNC portal in your browser. When you are asked for a password use `builduser`.
Once in the VNC UI you can open `Applications -> System -> XTerm` which will open a VNC based terminal app and then you can run `e start` like normal and Electron will open in your VNC session.
## Running Tests
You run tests via build-tools and `xvfb`.
```bash
# Run all tests
xvfb-run e test
# Run the main process tests
xvfb-run e test --runners=main
# Run the old remote tests
xvfb-run e test --runners=remote
```