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54 lines
1.3 KiB
54 lines
1.3 KiB
'use strict';
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const fs = require('fs');
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const micromatch = require('micromatch');
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const path = require('path');
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module.exports = findWorkspaceRoot;
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/**
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* Adapted from:
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* https://github.com/yarnpkg/yarn/blob/ddf2f9ade211195372236c2f39a75b00fa18d4de/src/config.js#L612
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* @param {string} [initial]
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* @return {string|null}
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*/
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function findWorkspaceRoot(initial) {
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if (!initial) {
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initial = process.cwd();
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}
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let previous = null;
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let current = path.normalize(initial);
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do {
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const manifest = readPackageJSON(current);
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const workspaces = extractWorkspaces(manifest);
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if (workspaces) {
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const relativePath = path.relative(current, initial);
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if (relativePath === '' || micromatch([relativePath], workspaces).length > 0) {
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return current;
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} else {
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return null;
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}
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}
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previous = current;
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current = path.dirname(current);
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} while (current !== previous);
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return null;
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}
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function extractWorkspaces(manifest) {
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const workspaces = (manifest || {}).workspaces;
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return (workspaces && workspaces.packages) || (Array.isArray(workspaces) ? workspaces : null);
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}
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function readPackageJSON(dir) {
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const file = path.join(dir, 'package.json');
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if (fs.existsSync(file)) {
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return JSON.parse(fs.readFileSync(file, 'utf8'));
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}
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return null;
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}
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