77 lines
1.5 KiB
Markdown
77 lines
1.5 KiB
Markdown
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# yarn-or-npm
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Execute scripts with Yarn or npm.
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```sh
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yarn add -D yarn-or-npm
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# or
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npm i --save-dev yarn-or-npm
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```
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The client is determined by a series of ordered checks:
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1. `yarn.lock` file is in the nearest package directory - **yarn**
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1. `package-lock.json` file is in the nearest package directory - **npm**
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1. `yarn` is installed - **yarn**
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1. Fallback - **npm**
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## Module
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```js
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import yarnOrNpm, { spawn, hasYarn, hasNpm } from 'yarn-or-npm';
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// String of `yarn` or `npm` returned
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console.log(yarnOrNpm());
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// Boolean values for hasYarn, hasNpm
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console.log(hasYarn());
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// Spawn yarn or npm command
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spawn(['init']);
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// Spawn sync option
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spawn.sync(['init'], { stdio: 'inherit' });
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```
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Under the covers, there are cached lookup values being used for efficiency. These can be manually cleared:
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```js
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import yarnOrNpm from 'yarn-or-npm';
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import { spawnSync } from 'child_process';
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console.log(yarnOrNpm.hasYarn()); // false
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spawnSync('npm', ['i', '-g', 'yarn'], { stdio: 'inherit' });
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console.log(yarnOrNpm.hasYarn()); // false (cached)
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yarnOrNpm.clearCache();
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console.log(yarnOrNpm.hasYarn()); // true
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```
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## CLI
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```sh
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yarn-or-npm <command>
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# Can also use `yon` shorthand
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yon <command>
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```
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## Package
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Modules with bin files can be called directly in `package.json` scripts:
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```json
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{
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"devDependencies": {
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...
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"yarn-or-npm": "^1.0.0"
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},
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"scripts": {
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"compile": "babel src --out-dir dist",
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"lint": "eslint .",
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"prepublish": "yarn-or-npm run lint && yarn-or-npm run compile"
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}
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}
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```
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