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fix: limit number of workers when creating haste maps in projects #9259

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merged 4 commits into from Dec 3, 2019
Merged

fix: limit number of workers when creating haste maps in projects #9259

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2940904
feat: limit number of workers when creating haste maps in projects
thymikee Dec 3, 2019
c24eaf8
add changelog
thymikee Dec 3, 2019
259fc2c
floor the division
thymikee Dec 3, 2019
f79f9b6
bring back WorkerPool doc
thymikee Dec 3, 2019
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6 changes: 2 additions & 4 deletions .vscode/settings.json
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Expand Up @@ -5,9 +5,7 @@
"**/node_modules": true,
"**/build": true
},
"editor.formatOnSave": true,
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sure? 😀

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Format on save may conflict with eslint fix, if editor settings for prettier differ

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@SimenB SimenB Dec 4, 2019 •
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seems silly to me to have editor specific config files checked in, but I'm not losing sleep over it 🤷‍♂

"flow.useNPMPackagedFlow": true,
"eslint.autoFixOnSave": true,
"javascript.validate.enable": false,
"jest.pathToJest": "yarn jest --",
"prettier.eslintIntegration": true
"jest.pathToJest": "yarn jest --"
}
2 changes: 1 addition & 1 deletion packages/jest-core/src/cli/index.ts
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Expand Up @@ -122,7 +122,7 @@ const buildContextsAndHasteMaps = async (
createDirectory(config.cacheDirectory);
const hasteMapInstance = Runtime.createHasteMap(config, {
console: new CustomConsole(outputStream, outputStream),
maxWorkers: globalConfig.maxWorkers,
maxWorkers: Math.max(1, globalConfig.maxWorkers / configs.length),
resetCache: !config.cache,
watch: globalConfig.watch || globalConfig.watchAll,
watchman: globalConfig.watchman,
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3 changes: 0 additions & 3 deletions packages/jest-runtime/src/cli/index.ts
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Expand Up @@ -35,7 +35,6 @@ export function run(cliArgv?: Config.Argv, cliInfo?: Array<string>) {
.version(false)
.options(args.options).argv;

// @ts-ignore: fix this at some point
validateCLIOptions(argv, {...args.options, deprecationEntries});
}

Expand Down Expand Up @@ -63,8 +62,6 @@ export function run(cliArgv?: Config.Argv, cliInfo?: Array<string>) {
const info = cliInfo ? ', ' + cliInfo.join(', ') : '';
console.log(`Using Jest Runtime v${VERSION}${info}`);
}
// TODO: Figure this out
// @ts-ignore: this might not have the correct arguments
const options = readConfig(argv, root);
const globalConfig = options.globalConfig;
// Always disable automocking in scripts.
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6 changes: 0 additions & 6 deletions packages/jest-worker/README.md
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Expand Up @@ -83,12 +83,6 @@ By default, no process is bound to any worker.

The arguments that will be passed to the `setup` method during initialization.

#### `workerPool: (workerPath: string, options?: WorkerPoolOptions) => WorkerPoolInterface` (optional)
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Provide a custom worker pool to be used for spawning child processes. By default, Jest will use a node thread pool if available and fall back to child process threads.

The arguments that will be passed to the `setup` method during initialization.

#### `enableWorkerThreads: boolean` (optional)

`jest-worker` will automatically detect if `worker_threads` are available, but will not use them unless passed `enableWorkerThreads: true`.
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