scratch-desktop/README.md
2018-12-27 12:18:09 -08:00

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# scratch-desktop
Scratch 3.0 as a standalone desktop application
## Developer Instructions
### Prepare `scratch-gui`
This step is temporary: eventually, the `scratch-desktop` branch of the Scratch GUI repository will be merged with
that repository's main development line. For now, though, there's a separate branch:
1. Clone the `scratch-gui` repository if you haven't already.
2. Switch to the `scratch-desktop` branch with `git checkout scratch-desktop`
3. Build with `BUILD_MODE=dist`:
- macOS, WSL, or Cygwin: run `BUILD_MODE=dist npm run build` or `BUILD_MODE=dist npm run watch`
- CMD: run `set BUILD_MODE=dist` once, then `npm run build` or `npm run watch` any number of times in the same
window.
- PowerShell: run `$env:BUILD_MODE = "dist"` once, then `npm run build` or `npm run watch` any number of times in
the same window.
### Prepare media library assets
In the `scratch-desktop` directory, run `npm run fetch`. Re-run this any time you update `scratch-gui` or make any
other changes which might affect the media libraries.
### Run in development mode
`npm start`
### Make a packaged build
`npm run dist`
Node that on macOS this will require installing various certificates.
### Make a semi-packaged build
This will simulate a packaged build without actually packaging it: instead the files will be copied to a subdirectory
of `dist`.
`npm run dist:dir`
### Debugging
You can debug the renderer process by opening the Chromium development console. This should be the same keyboard
shortcut as Chrome on your platform. This won't work on a packaged build.
You can debug the main process the same way as any Node.js process. I like to use Visual Studio Code with a
configuration like this:
```json
"launch": {
"version": "0.2.0",
"configurations": [
{
"name": "Desktop",
"type": "node",
"request": "launch",
"cwd": "${workspaceFolder:scratch-desktop}",
"runtimeExecutable": "npm",
"autoAttachChildProcesses": true,
"runtimeArgs": ["start", "--"],
"protocol": "inspector",
"skipFiles": [
// it seems like skipFiles only reliably works with 1 entry :(
//"<node_internals>/**",
"${workspaceFolder:scratch-desktop}/node_modules/electron/dist/resources/*.asar/**"
],
"sourceMaps": true,
"timeout": 30000,
"outputCapture": "std"
}
]
},
```