55 lines
1.7 KiB
JavaScript
55 lines
1.7 KiB
JavaScript
const { resolve, relative } = require('path')
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const mapWorkspaces = require('@npmcli/map-workspaces')
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const minimatch = require('minimatch')
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const rpj = require('read-package-json-fast')
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// minimatch wants forward slashes only for glob patterns
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const globify = pattern => pattern.split('\\').join('/')
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// Returns an Map of paths to workspaces indexed by workspace name
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// { foo => '/path/to/foo' }
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const getWorkspaces = async (filters, { path, includeWorkspaceRoot, relativeFrom }) => {
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// TODO we need a better error to be bubbled up here if this rpj call fails
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const pkg = await rpj(resolve(path, 'package.json'))
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const workspaces = await mapWorkspaces({ cwd: path, pkg })
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let res = new Map()
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if (includeWorkspaceRoot) {
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res.set(pkg.name, path)
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}
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if (!filters.length) {
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res = new Map([...res, ...workspaces])
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}
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for (const filterArg of filters) {
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for (const [workspaceName, workspacePath] of workspaces.entries()) {
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let relativePath = relative(relativeFrom, workspacePath)
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if (filterArg.startsWith('./')) {
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relativePath = `./${relativePath}`
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}
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const relativeFilter = relative(path, filterArg)
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if (filterArg === workspaceName
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|| resolve(relativeFrom, filterArg) === workspacePath
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|| minimatch(relativePath, `${globify(relativeFilter)}/*`)
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|| minimatch(relativePath, `${globify(filterArg)}/*`)
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) {
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res.set(workspaceName, workspacePath)
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}
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}
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}
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if (!res.size) {
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let msg = '!'
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if (filters.length) {
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msg = `:\n ${filters.reduce(
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(acc, filterArg) => `${acc} --workspace=${filterArg}`, '')}`
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}
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throw new Error(`No workspaces found${msg}`)
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}
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return res
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}
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module.exports = getWorkspaces
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