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const { resolve } = require('path')
const mapWorkspaces = require('@npmcli/map-workspaces')
const minimatch = require('minimatch')
const rpj = require('read-package-json-fast')
// Returns an Map of paths to workspaces indexed by workspace name
// { foo => '/path/to/foo' }
const getWorkspaces = async (filters, { path }) => {
// TODO we need a better error to be bubbled up here if this rpj call fails
const pkg = await rpj(resolve(path, 'package.json'))
const workspaces = await mapWorkspaces({ cwd: path, pkg })
const res = filters.length ? new Map() : workspaces
for (const filterArg of filters) {
for (const [workspaceName, workspacePath] of workspaces.entries()) {
if (filterArg === workspaceName
|| resolve(path, filterArg) === workspacePath
|| minimatch(workspacePath, `${resolve(path, filterArg)}/*`))
res.set(workspaceName, workspacePath)
}
}
if (!res.size) {
let msg = '!'
if (filters.length) {
msg = `:\n ${filters.reduce(
(res, filterArg) => `${res} --workspace=${filterArg}`, '')}`
}
throw new Error(`No workspaces found${msg}`)
}
return res
}
module.exports = getWorkspaces