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searchRoot.ts
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searchRoot.ts
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import fs from 'fs'
import { dirname, join } from 'path'
import { isFileReadable } from '../utils'
// https://github.com/vitejs/vite/issues/2820#issuecomment-812495079
const ROOT_FILES = [
// '.git',
// https://pnpm.js.org/workspaces/
'pnpm-workspace.yaml',
// https://rushjs.io/pages/advanced/config_files/
// 'rush.json',
// https://nx.dev/latest/react/getting-started/nx-setup
// 'workspace.json',
// 'nx.json',
// https://github.com/lerna/lerna#lernajson
'lerna.json'
]
// npm: https://docs.npmjs.com/cli/v7/using-npm/workspaces#installing-workspaces
// yarn: https://classic.yarnpkg.com/en/docs/workspaces/#toc-how-to-use-it
function hasWorkspacePackageJSON(root: string): boolean {
const path = join(root, 'package.json')
if (!isFileReadable(path)) {
return false
}
const content = JSON.parse(fs.readFileSync(path, 'utf-8')) || {}
return !!content.workspaces
}
function hasRootFile(root: string): boolean {
return ROOT_FILES.some((file) => fs.existsSync(join(root, file)))
}
function hasPackageJSON(root: string) {
const path = join(root, 'package.json')
return fs.existsSync(path)
}
/**
* Search up for the nearest `package.json`
*/
export function searchForPackageRoot(current: string, root = current): string {
if (hasPackageJSON(current)) return current
const dir = dirname(current)
// reach the fs root
if (!dir || dir === current) return root
return searchForPackageRoot(dir, root)
}
/**
* Search up for the nearest workspace root
*/
export function searchForWorkspaceRoot(
current: string,
root = searchForPackageRoot(current)
): string {
if (hasRootFile(current)) return current
if (hasWorkspacePackageJSON(current)) return current
const dir = dirname(current)
// reach the fs root
if (!dir || dir === current) return root
return searchForWorkspaceRoot(dir, root)
}