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const { resolve, relative, sep } = require('path')
const relativePrefix = `.${sep}`
const { EOL } = require('os')
const archy = require('archy')
const chalk = require('chalk')
const Arborist = require('@npmcli/arborist')
const { breadth } = require('treeverse')
const npa = require('npm-package-arg')
const completion = require('./utils/completion/installed-deep.js')
const _depth = Symbol('depth')
const _dedupe = Symbol('dedupe')
const _filteredBy = Symbol('filteredBy')
const _include = Symbol('include')
const _invalid = Symbol('invalid')
const _name = Symbol('name')
const _missing = Symbol('missing')
const _parent = Symbol('parent')
const _problems = Symbol('problems')
const _required = Symbol('required')
const _type = Symbol('type')
const ArboristWorkspaceCmd = require('./workspaces/arborist-cmd.js')
class LS extends ArboristWorkspaceCmd {
/* istanbul ignore next - see test/lib/load-all-commands.js */
static get description () {
return 'List installed packages'
}
/* istanbul ignore next - see test/lib/load-all-commands.js */
static get name () {
return 'ls'
}
/* istanbul ignore next - see test/lib/load-all-commands.js */
static get usage () {
return ['[[<@scope>/]<pkg> ...]']
}
/* istanbul ignore next - see test/lib/load-all-commands.js */
static get params () {
return [
'all',
'json',
'long',
'parseable',
'global',
'depth',
'omit',
'link',
'package-lock-only',
'unicode',
...super.params,
]
}
/* istanbul ignore next - see test/lib/load-all-commands.js */
async completion (opts) {
return completion(this.npm, opts)
}
exec (args, cb) {
this.ls(args).then(() => cb()).catch(cb)
}
async ls (args) {
const all = this.npm.config.get('all')
const color = this.npm.color
const depth = this.npm.config.get('depth')
const dev = this.npm.config.get('dev')
const development = this.npm.config.get('development')
const global = this.npm.config.get('global')
const json = this.npm.config.get('json')
const link = this.npm.config.get('link')
const long = this.npm.config.get('long')
const only = this.npm.config.get('only')
const parseable = this.npm.config.get('parseable')
const prod = this.npm.config.get('prod')
const production = this.npm.config.get('production')
const unicode = this.npm.config.get('unicode')
const packageLockOnly = this.npm.config.get('package-lock-only')
const path = global ? resolve(this.npm.globalDir, '..') : this.npm.prefix
const arb = new Arborist({
global,
...this.npm.flatOptions,
legacyPeerDeps: false,
path,
})
const tree = await this.initTree({arb, args, packageLockOnly })
// filters by workspaces nodes when using -w <workspace-name>
// We only have to filter the first layer of edges, so we don't
// explore anything that isn't part of the selected workspace set.
let wsNodes
if (this.workspaceNames && this.workspaceNames.length)
wsNodes = arb.workspaceNodes(tree, this.workspaceNames)
const filterBySelectedWorkspaces = edge => {
if (!wsNodes || !wsNodes.length)
return true
if (edge.from.isProjectRoot) {
return edge.to &&
edge.to.isWorkspace &
wsNodes.includes(edge.to.target)
}
return true
}
const seenItems = new Set()
const seenNodes = new Map()
const problems = new Set()
// defines special handling of printed depth when filtering with args
const filterDefaultDepth = depth === null ? Infinity : depth
const depthToPrint = (all || args.length)
? filterDefaultDepth
: (depth || 0)
// add root node of tree to list of seenNodes
seenNodes.set(tree.path, tree)
// tree traversal happens here, using treeverse.breadth
const result = await breadth({
tree,
// recursive method, `node` is going to be the current elem (starting from
// the `tree` obj) that was just visited in the `visit` method below
// `nodeResult` is going to be the returned `item` from `visit`
getChildren (node, nodeResult) {
const seenPaths = new Set()
const workspace = node.isWorkspace
const currentDepth = workspace ? 0 : node[_depth]
const shouldSkipChildren =
!(node instanceof Arborist.Node) || (currentDepth > depthToPrint)
return (shouldSkipChildren)
? []
: [...(node.target).edgesOut.values()]
.filter(filterBySelectedWorkspaces)
.filter(filterByEdgesTypes({
currentDepth,
dev,
development,
link,
prod,
production,
only,
}))
.map(mapEdgesToNodes({ seenPaths }))
.concat(appendExtraneousChildren({ node, seenPaths }))
.sort(sortAlphabetically)
.map(augmentNodesWithMetadata({
args,
currentDepth,
nodeResult,
seenNodes,
}))
},
// visit each `node` of the `tree`, returning an `item` - these are
// the elements that will be used to build the final output
visit (node) {
node[_problems] = getProblems(node, { global })
const item = json
? getJsonOutputItem(node, { global, long })
: parseable
? null
: getHumanOutputItem(node, { args, color, global, long })
// loop through list of node problems to add them to global list
if (node[_include]) {
for (const problem of node[_problems])
problems.add(problem)
}
seenItems.add(item)
// return a promise so we don't blow the stack
return Promise.resolve(item)
},
})
// handle the special case of a broken package.json in the root folder
const [rootError] = tree.errors.filter(e =>
e.code === 'EJSONPARSE' && e.path === resolve(path, 'package.json'))
this.npm.output(
json
? jsonOutput({ path, problems, result, rootError, seenItems })
: parseable
? parseableOutput({ seenNodes, global, long })
: humanOutput({ color, result, seenItems, unicode })
)
// if filtering items, should exit with error code on no results
if (result && !result[_include] && args.length)
process.exitCode = 1
if (rootError) {
throw Object.assign(
new Error('Failed to parse root package.json'),
{ code: 'EJSONPARSE' }
)
}
const shouldThrow = problems.size &&
![...problems].every(problem => problem.startsWith('extraneous:'))
if (shouldThrow) {
throw Object.assign(
new Error([...problems].join(EOL)),
{ code: 'ELSPROBLEMS' }
)
}
}
async initTree ({ arb, args, packageLockOnly }) {
const tree = await (
packageLockOnly
? arb.loadVirtual()
: arb.loadActual()
)
tree[_include] = args.length === 0
tree[_depth] = 0
return tree
}
}
module.exports = LS
const isGitNode = (node) => {
if (!node.resolved)
return
try {
const { type } = npa(node.resolved)
return type === 'git' || type === 'hosted'
} catch (err) {
return false
}
}
const isOptional = (node) =>
node[_type] === 'optional' || node[_type] === 'peerOptional'
const isExtraneous = (node, { global }) =>
node.extraneous && !global
const getProblems = (node, { global }) => {
const problems = new Set()
if (node[_missing] && !isOptional(node))
problems.add(`missing: ${node.pkgid}, required by ${node[_missing]}`)
if (node[_invalid])
problems.add(`invalid: ${node.pkgid} ${node.path}`)
if (isExtraneous(node, { global }))
problems.add(`extraneous: ${node.pkgid} ${node.path}`)
return problems
}
// annotates _parent and _include metadata into the resulting
// item obj allowing for filtering out results during output
const augmentItemWithIncludeMetadata = (node, item) => {
item[_parent] = node[_parent]
item[_include] = node[_include]
// append current item to its parent.nodes which is the
// structure expected by archy in order to print tree
if (node[_include]) {
// includes all ancestors of included node
let p = node[_parent]
while (p) {
p[_include] = true
p = p[_parent]
}
}
return item
}
const getHumanOutputItem = (node, { args, color, global, long }) => {
const { pkgid, path } = node
const workspacePkgId = color ? chalk.green(pkgid) : pkgid
let printable = node.isWorkspace ? workspacePkgId : pkgid
// special formatting for top-level package name
if (node.isRoot) {
const hasNoPackageJson = !Object.keys(node.package).length
if (hasNoPackageJson || global)
printable = path
else
printable += `${long ? EOL : ' '}${path}`
}
const highlightDepName =
color && args.length && node[_filteredBy]
const missingColor = isOptional(node)
? chalk.yellow.bgBlack
: chalk.red.bgBlack
const missingMsg = `UNMET ${isOptional(node) ? 'OPTIONAL ' : ''}DEPENDENCY`
const targetLocation = node.root
? relative(node.root.realpath, node.realpath)
: node.targetLocation
const invalid = node[_invalid]
? `invalid: ${node[_invalid]}`
: ''
const label =
(
node[_missing]
? (color ? missingColor(missingMsg) : missingMsg) + ' '
: ''
) +
`${highlightDepName ? chalk.yellow.bgBlack(printable) : printable}` +
(
node[_dedupe]
? ' ' + (color ? chalk.gray('deduped') : 'deduped')
: ''
) +
(
invalid
? ' ' + (color ? chalk.red.bgBlack(invalid) : invalid)
: ''
) +
(
isExtraneous(node, { global })
? ' ' + (color ? chalk.green.bgBlack('extraneous') : 'extraneous')
: ''
) +
(isGitNode(node) ? ` (${node.resolved})` : '') +
(node.isLink ? ` -> ${relativePrefix}${targetLocation}` : '') +
(long ? `${EOL}${node.package.description || ''}` : '')
return augmentItemWithIncludeMetadata(node, { label, nodes: [] })
}
const getJsonOutputItem = (node, { global, long }) => {
const item = {}
if (node.version)
item.version = node.version
if (node.resolved)
item.resolved = node.resolved
item[_name] = node.name
// special formatting for top-level package name
const hasPackageJson =
node && node.package && Object.keys(node.package).length
if (node.isRoot && hasPackageJson)
item.name = node.package.name || node.name
if (long && !node[_missing]) {
item.name = item[_name]
const { dependencies, ...packageInfo } = node.package
Object.assign(item, packageInfo)
item.extraneous = false
item.path = node.path
item._dependencies = {
...node.package.dependencies,
...node.package.optionalDependencies,
}
item.devDependencies = node.package.devDependencies || {}
item.peerDependencies = node.package.peerDependencies || {}
}
// augment json output items with extra metadata
if (isExtraneous(node, { global }))
item.extraneous = true
if (node[_invalid])
item.invalid = node[_invalid]
if (node[_missing] && !isOptional(node)) {
item.required = node[_required]
item.missing = true
}
if (node[_include] && node[_problems] && node[_problems].size)
item.problems = [...node[_problems]]
return augmentItemWithIncludeMetadata(node, item)
}
const filterByEdgesTypes = ({
currentDepth,
dev,
development,
link,
prod,
production,
only,
}) => {
// filter deps by type, allows for: `npm ls --dev`, `npm ls --prod`,
// `npm ls --link`, `npm ls --only=dev`, etc
const filterDev = currentDepth === 0 &&
(dev || development || /^dev(elopment)?$/.test(only))
const filterProd = currentDepth === 0 &&
(prod || production || /^prod(uction)?$/.test(only))
const filterLink = currentDepth === 0 && link
return (edge) =>
(filterDev ? edge.dev : true) &&
(filterProd ? (!edge.dev && !edge.peer && !edge.peerOptional) : true) &&
(filterLink ? (edge.to && edge.to.isLink) : true)
}
const appendExtraneousChildren = ({ node, seenPaths }) =>
// extraneous children are not represented
// in edges out, so here we add them to the list:
[...node.children.values()]
.filter(i => !seenPaths.has(i.path) && i.extraneous)
const mapEdgesToNodes = ({ seenPaths }) => (edge) => {
let node = edge.to
// if the edge is linking to a missing node, we go ahead
// and create a new obj that will represent the missing node
if (edge.missing || (edge.optional && !node)) {
const { name, spec } = edge
const pkgid = `${name}@${spec}`
node = { name, pkgid, [_missing]: edge.from.pkgid }
}
// keeps track of a set of seen paths to avoid the edge case in which a tree
// item would appear twice given that it's a children of an extraneous item,
// so it's marked extraneous but it will ALSO show up in edgesOuts of
// its parent so it ends up as two diff nodes if we don't track it
if (node.path)
seenPaths.add(node.path)
node[_required] = edge.spec || '*'
node[_type] = edge.type
if (edge.invalid) {
const spec = JSON.stringify(node[_required])
const from = edge.from.location || 'the root project'
node[_invalid] = (node[_invalid] ? node[_invalid] + ', ' : '') +
(`${spec} from ${from}`)
}
return node
}
const filterByPositionalArgs = (args, { node }) =>
args.length > 0 ? args.some(
(spec) => (node.satisfies && node.satisfies(spec))
) : true
const augmentNodesWithMetadata = ({
args,
currentDepth,
nodeResult,
seenNodes,
}) => (node) => {
// if the original edge was a deduped dep, treeverse will fail to
// revisit that node in tree traversal logic, so we make it so that
// we have a diff obj for deduped nodes:
if (seenNodes.has(node.path)) {
const { realpath, root } = node
const targetLocation = root ? relative(root.realpath, realpath)
: node.targetLocation
node = {
name: node.name,
version: node.version,
pkgid: node.pkgid,
package: node.package,
path: node.path,
isLink: node.isLink,
realpath: node.realpath,
targetLocation,
[_type]: node[_type],
[_invalid]: node[_invalid],
[_missing]: node[_missing],
// if it's missing, it's not deduped, it's just missing
[_dedupe]: !node[_missing],
}
} else {
// keeps track of already seen nodes in order to check for dedupes
seenNodes.set(node.path, node)
}
// _parent is going to be a ref to a treeverse-visited node (returned from
// getHumanOutputItem, getJsonOutputItem, etc) so that we have an easy
// shortcut to place new nodes in their right place during tree traversal
node[_parent] = nodeResult
// _include is the property that allow us to filter based on position args
// e.g: `npm ls foo`, `npm ls simple-output@2`
// _filteredBy is used to apply extra color info to the item that
// was used in args in order to filter
node[_filteredBy] = node[_include] =
filterByPositionalArgs(args, { node: seenNodes.get(node.path) })
// _depth keeps track of how many levels deep tree traversal currently is
// so that we can `npm ls --depth=1`
node[_depth] = currentDepth + 1
return node
}
const sortAlphabetically = (a, b) =>
a.pkgid.localeCompare(b.pkgid, 'en')
const humanOutput = ({ color, result, seenItems, unicode }) => {
// we need to traverse the entire tree in order to determine which items
// should be included (since a nested transitive included dep will make it
// so that all its ancestors should be displayed)
// here is where we put items in their expected place for archy output
for (const item of seenItems) {
if (item[_include] && item[_parent])
item[_parent].nodes.push(item)
}
if (!result.nodes.length)
result.nodes = ['(empty)']
const archyOutput = archy(result, '', { unicode })
return color ? chalk.reset(archyOutput) : archyOutput
}
const jsonOutput = ({ path, problems, result, rootError, seenItems }) => {
if (problems.size)
result.problems = [...problems]
if (rootError) {
result.problems = [
...(result.problems || []),
...[`error in ${path}: Failed to parse root package.json`],
]
result.invalid = true
}
// we need to traverse the entire tree in order to determine which items
// should be included (since a nested transitive included dep will make it
// so that all its ancestors should be displayed)
// here is where we put items in their expected place for json output
for (const item of seenItems) {
// append current item to its parent item.dependencies obj in order
// to provide a json object structure that represents the installed tree
if (item[_include] && item[_parent]) {
if (!item[_parent].dependencies)
item[_parent].dependencies = {}
item[_parent].dependencies[item[_name]] = item
}
}
return JSON.stringify(result, null, 2)
}
const parseableOutput = ({ global, long, seenNodes }) => {
let out = ''
for (const node of seenNodes.values()) {
if (node.path && node[_include]) {
out += node.path
if (long) {
out += `:${node.pkgid}`
out += node.path !== node.realpath ? `:${node.realpath}` : ''
out += isExtraneous(node, { global }) ? ':EXTRANEOUS' : ''
out += node[_invalid] ? ':INVALID' : ''
}
out += EOL
}
}
return out.trim()
}