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290 lines
8.5 KiB
290 lines
8.5 KiB
'use strict'
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// Do a two-pass walk, first to get the list of packages that need to be
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// bundled, then again to get the actual files and folders.
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// Keep a cache of node_modules content and package.json data, so that the
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// second walk doesn't have to re-do all the same work.
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const bundleWalk = require('npm-bundled')
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const BundleWalker = bundleWalk.BundleWalker
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const BundleWalkerSync = bundleWalk.BundleWalkerSync
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const ignoreWalk = require('ignore-walk')
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const IgnoreWalker = ignoreWalk.Walker
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const IgnoreWalkerSync = ignoreWalk.WalkerSync
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const rootBuiltinRules = Symbol('root-builtin-rules')
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const packageNecessaryRules = Symbol('package-necessary-rules')
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const path = require('path')
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const normalizePackageBin = require('npm-normalize-package-bin')
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const defaultRules = [
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'.npmignore',
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'.gitignore',
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'**/.git',
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'**/.svn',
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'**/.hg',
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'**/CVS',
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'**/.git/**',
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'**/.svn/**',
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'**/.hg/**',
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'**/CVS/**',
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'/.lock-wscript',
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'/.wafpickle-*',
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'/build/config.gypi',
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'npm-debug.log',
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'**/.npmrc',
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'.*.swp',
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'.DS_Store',
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'**/.DS_Store/**',
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'._*',
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'**/._*/**',
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'*.orig',
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'/package-lock.json',
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'/yarn.lock',
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'archived-packages/**',
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'core',
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'!core/',
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'!**/core/',
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'*.core',
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'*.vgcore',
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'vgcore.*',
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'core.+([0-9])',
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]
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// There may be others, but :?|<> are handled by node-tar
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const nameIsBadForWindows = file => /\*/.test(file)
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// a decorator that applies our custom rules to an ignore walker
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const npmWalker = Class => class Walker extends Class {
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constructor (opt) {
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opt = opt || {}
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// the order in which rules are applied.
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opt.ignoreFiles = [
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rootBuiltinRules,
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'package.json',
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'.npmignore',
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'.gitignore',
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packageNecessaryRules
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]
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opt.includeEmpty = false
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opt.path = opt.path || process.cwd()
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const dirName = path.basename(opt.path)
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const parentName = path.basename(path.dirname(opt.path))
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opt.follow =
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dirName === 'node_modules' ||
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(parentName === 'node_modules' && /^@/.test(dirName))
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super(opt)
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// ignore a bunch of things by default at the root level.
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// also ignore anything in node_modules, except bundled dependencies
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if (!this.parent) {
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this.bundled = opt.bundled || []
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this.bundledScopes = Array.from(new Set(
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this.bundled.filter(f => /^@/.test(f))
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.map(f => f.split('/')[0])))
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const rules = defaultRules.join('\n') + '\n'
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this.packageJsonCache = opt.packageJsonCache || new Map()
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super.onReadIgnoreFile(rootBuiltinRules, rules, _=>_)
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} else {
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this.bundled = []
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this.bundledScopes = []
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this.packageJsonCache = this.parent.packageJsonCache
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}
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}
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onReaddir (entries) {
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if (!this.parent) {
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entries = entries.filter(e =>
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e !== '.git' &&
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!(e === 'node_modules' && this.bundled.length === 0)
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)
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}
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return super.onReaddir(entries)
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}
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filterEntry (entry, partial) {
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// get the partial path from the root of the walk
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const p = this.path.substr(this.root.length + 1)
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const pkgre = /^node_modules\/(@[^\/]+\/?[^\/]+|[^\/]+)(\/.*)?$/
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const isRoot = !this.parent
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const pkg = isRoot && pkgre.test(entry) ?
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entry.replace(pkgre, '$1') : null
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const rootNM = isRoot && entry === 'node_modules'
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const rootPJ = isRoot && entry === 'package.json'
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return (
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// if we're in a bundled package, check with the parent.
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/^node_modules($|\/)/i.test(p) ? this.parent.filterEntry(
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this.basename + '/' + entry, partial)
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// if package is bundled, all files included
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// also include @scope dirs for bundled scoped deps
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// they'll be ignored if no files end up in them.
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// However, this only matters if we're in the root.
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// node_modules folders elsewhere, like lib/node_modules,
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// should be included normally unless ignored.
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: pkg ? -1 !== this.bundled.indexOf(pkg) ||
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-1 !== this.bundledScopes.indexOf(pkg)
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// only walk top node_modules if we want to bundle something
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: rootNM ? !!this.bundled.length
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// always include package.json at the root.
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: rootPJ ? true
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// otherwise, follow ignore-walk's logic
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: super.filterEntry(entry, partial)
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)
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}
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filterEntries () {
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if (this.ignoreRules['package.json'])
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this.ignoreRules['.gitignore'] = this.ignoreRules['.npmignore'] = null
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else if (this.ignoreRules['.npmignore'])
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this.ignoreRules['.gitignore'] = null
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this.filterEntries = super.filterEntries
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super.filterEntries()
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}
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addIgnoreFile (file, then) {
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const ig = path.resolve(this.path, file)
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if (this.packageJsonCache.has(ig))
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this.onPackageJson(ig, this.packageJsonCache.get(ig), then)
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else
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super.addIgnoreFile(file, then)
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}
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onPackageJson (ig, pkg, then) {
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this.packageJsonCache.set(ig, pkg)
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// if there's a bin, browser or main, make sure we don't ignore it
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// also, don't ignore the package.json itself!
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//
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// Weird side-effect of this: a readme (etc) file will be included
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// if it exists anywhere within a folder with a package.json file.
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// The original intent was only to include these files in the root,
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// but now users in the wild are dependent on that behavior for
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// localized documentation and other use cases. Adding a `/` to
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// these rules, while tempting and arguably more "correct", is a
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// breaking change.
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const rules = [
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pkg.browser ? '!' + pkg.browser : '',
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pkg.main ? '!' + pkg.main : '',
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'!package.json',
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'!npm-shrinkwrap.json',
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'!@(readme|copying|license|licence|notice|changes|changelog|history){,.*[^~$]}'
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]
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if (pkg.bin) {
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// always an object, because normalized already
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for (const key in pkg.bin)
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rules.push('!' + pkg.bin[key])
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}
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const data = rules.filter(f => f).join('\n') + '\n'
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super.onReadIgnoreFile(packageNecessaryRules, data, _=>_)
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if (Array.isArray(pkg.files))
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super.onReadIgnoreFile('package.json', '*\n' + pkg.files.map(
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f => '!' + f + '\n!' + f.replace(/\/+$/, '') + '/**'
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).join('\n') + '\n', then)
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else
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then()
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}
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// override parent stat function to completely skip any filenames
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// that will break windows entirely.
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// XXX(isaacs) Next major version should make this an error instead.
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stat (entry, file, dir, then) {
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if (nameIsBadForWindows(entry))
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then()
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else
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super.stat(entry, file, dir, then)
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}
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// override parent onstat function to nix all symlinks
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onstat (st, entry, file, dir, then) {
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if (st.isSymbolicLink())
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then()
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else
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super.onstat(st, entry, file, dir, then)
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}
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onReadIgnoreFile (file, data, then) {
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if (file === 'package.json')
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try {
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const ig = path.resolve(this.path, file)
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this.onPackageJson(ig, normalizePackageBin(JSON.parse(data)), then)
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} catch (er) {
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// ignore package.json files that are not json
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then()
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}
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else
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super.onReadIgnoreFile(file, data, then)
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}
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sort (a, b) {
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return sort(a, b)
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}
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}
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class Walker extends npmWalker(IgnoreWalker) {
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walker (entry, then) {
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new Walker(this.walkerOpt(entry)).on('done', then).start()
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}
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}
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class WalkerSync extends npmWalker(IgnoreWalkerSync) {
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walker (entry, then) {
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new WalkerSync(this.walkerOpt(entry)).start()
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then()
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}
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}
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const walk = (options, callback) => {
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options = options || {}
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const p = new Promise((resolve, reject) => {
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const bw = new BundleWalker(options)
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bw.on('done', bundled => {
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options.bundled = bundled
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options.packageJsonCache = bw.packageJsonCache
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new Walker(options).on('done', resolve).on('error', reject).start()
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})
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bw.start()
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})
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return callback ? p.then(res => callback(null, res), callback) : p
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}
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const walkSync = options => {
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options = options || {}
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const bw = new BundleWalkerSync(options).start()
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options.bundled = bw.result
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options.packageJsonCache = bw.packageJsonCache
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const walker = new WalkerSync(options)
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walker.start()
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return walker.result
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}
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// optimize for compressibility
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// extname, then basename, then locale alphabetically
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// https://twitter.com/isntitvacant/status/1131094910923231232
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const sort = (a, b) => {
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const exta = path.extname(a).toLowerCase()
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const extb = path.extname(b).toLowerCase()
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const basea = path.basename(a).toLowerCase()
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const baseb = path.basename(b).toLowerCase()
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return exta.localeCompare(extb) ||
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basea.localeCompare(baseb) ||
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a.localeCompare(b)
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}
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module.exports = walk
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walk.sync = walkSync
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walk.Walker = Walker
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walk.WalkerSync = WalkerSync
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