753 lines
18 KiB
JavaScript
753 lines
18 KiB
JavaScript
![]() |
// Approach:
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//
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// 1. Get the minimatch set
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// 2. For each pattern in the set, PROCESS(pattern, false)
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// 3. Store matches per-set, then uniq them
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//
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// PROCESS(pattern, inGlobStar)
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// Get the first [n] items from pattern that are all strings
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// Join these together. This is PREFIX.
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// If there is no more remaining, then stat(PREFIX) and
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// add to matches if it succeeds. END.
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//
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// If inGlobStar and PREFIX is symlink and points to dir
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// set ENTRIES = []
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// else readdir(PREFIX) as ENTRIES
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// If fail, END
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//
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// with ENTRIES
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// If pattern[n] is GLOBSTAR
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// // handle the case where the globstar match is empty
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// // by pruning it out, and testing the resulting pattern
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// PROCESS(pattern[0..n] + pattern[n+1 .. $], false)
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// // handle other cases.
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// for ENTRY in ENTRIES (not dotfiles)
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// // attach globstar + tail onto the entry
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// // Mark that this entry is a globstar match
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// PROCESS(pattern[0..n] + ENTRY + pattern[n .. $], true)
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//
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// else // not globstar
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// for ENTRY in ENTRIES (not dotfiles, unless pattern[n] is dot)
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// Test ENTRY against pattern[n]
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// If fails, continue
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// If passes, PROCESS(pattern[0..n] + item + pattern[n+1 .. $])
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//
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// Caveat:
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// Cache all stats and readdirs results to minimize syscall. Since all
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// we ever care about is existence and directory-ness, we can just keep
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// `true` for files, and [children,...] for directories, or `false` for
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// things that don't exist.
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module.exports = glob
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var fs = require('fs')
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var minimatch = require('minimatch')
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var Minimatch = minimatch.Minimatch
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var inherits = require('inherits')
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var EE = require('events').EventEmitter
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var path = require('path')
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var assert = require('assert')
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var isAbsolute = require('path-is-absolute')
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var globSync = require('./sync.js')
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var common = require('./common.js')
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var alphasort = common.alphasort
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var alphasorti = common.alphasorti
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var setopts = common.setopts
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var ownProp = common.ownProp
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var inflight = require('inflight')
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var util = require('util')
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var childrenIgnored = common.childrenIgnored
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var isIgnored = common.isIgnored
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var once = require('once')
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function glob (pattern, options, cb) {
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if (typeof options === 'function') cb = options, options = {}
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if (!options) options = {}
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if (options.sync) {
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if (cb)
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throw new TypeError('callback provided to sync glob')
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return globSync(pattern, options)
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}
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return new Glob(pattern, options, cb)
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}
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glob.sync = globSync
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var GlobSync = glob.GlobSync = globSync.GlobSync
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// old api surface
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glob.glob = glob
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glob.hasMagic = function (pattern, options_) {
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var options = util._extend({}, options_)
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options.noprocess = true
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var g = new Glob(pattern, options)
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var set = g.minimatch.set
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if (set.length > 1)
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return true
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for (var j = 0; j < set[0].length; j++) {
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if (typeof set[0][j] !== 'string')
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return true
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}
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return false
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}
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glob.Glob = Glob
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inherits(Glob, EE)
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function Glob (pattern, options, cb) {
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if (typeof options === 'function') {
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cb = options
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options = null
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}
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if (options && options.sync) {
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if (cb)
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throw new TypeError('callback provided to sync glob')
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return new GlobSync(pattern, options)
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}
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if (!(this instanceof Glob))
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return new Glob(pattern, options, cb)
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setopts(this, pattern, options)
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this._didRealPath = false
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// process each pattern in the minimatch set
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var n = this.minimatch.set.length
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// The matches are stored as {<filename>: true,...} so that
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// duplicates are automagically pruned.
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// Later, we do an Object.keys() on these.
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// Keep them as a list so we can fill in when nonull is set.
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this.matches = new Array(n)
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if (typeof cb === 'function') {
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cb = once(cb)
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this.on('error', cb)
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this.on('end', function (matches) {
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cb(null, matches)
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})
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}
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var self = this
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var n = this.minimatch.set.length
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this._processing = 0
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this.matches = new Array(n)
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this._emitQueue = []
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this._processQueue = []
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this.paused = false
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if (this.noprocess)
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return this
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if (n === 0)
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return done()
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for (var i = 0; i < n; i ++) {
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this._process(this.minimatch.set[i], i, false, done)
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}
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function done () {
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--self._processing
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if (self._processing <= 0)
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self._finish()
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}
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}
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Glob.prototype._finish = function () {
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assert(this instanceof Glob)
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if (this.aborted)
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return
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if (this.realpath && !this._didRealpath)
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return this._realpath()
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common.finish(this)
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this.emit('end', this.found)
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}
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Glob.prototype._realpath = function () {
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if (this._didRealpath)
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return
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this._didRealpath = true
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var n = this.matches.length
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if (n === 0)
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return this._finish()
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var self = this
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for (var i = 0; i < this.matches.length; i++)
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this._realpathSet(i, next)
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function next () {
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if (--n === 0)
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self._finish()
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}
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}
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Glob.prototype._realpathSet = function (index, cb) {
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var matchset = this.matches[index]
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if (!matchset)
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return cb()
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var found = Object.keys(matchset)
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var self = this
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var n = found.length
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if (n === 0)
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return cb()
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var set = this.matches[index] = Object.create(null)
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found.forEach(function (p, i) {
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// If there's a problem with the stat, then it means that
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// one or more of the links in the realpath couldn't be
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// resolved. just return the abs value in that case.
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p = self._makeAbs(p)
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fs.realpath(p, self.realpathCache, function (er, real) {
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if (!er)
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set[real] = true
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else if (er.syscall === 'stat')
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set[p] = true
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else
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self.emit('error', er) // srsly wtf right here
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if (--n === 0) {
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self.matches[index] = set
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cb()
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}
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})
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})
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}
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Glob.prototype._mark = function (p) {
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return common.mark(this, p)
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}
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Glob.prototype._makeAbs = function (f) {
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return common.makeAbs(this, f)
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}
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Glob.prototype.abort = function () {
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this.aborted = true
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this.emit('abort')
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}
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Glob.prototype.pause = function () {
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if (!this.paused) {
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this.paused = true
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this.emit('pause')
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}
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}
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Glob.prototype.resume = function () {
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if (this.paused) {
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this.emit('resume')
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this.paused = false
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if (this._emitQueue.length) {
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var eq = this._emitQueue.slice(0)
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this._emitQueue.length = 0
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for (var i = 0; i < eq.length; i ++) {
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var e = eq[i]
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this._emitMatch(e[0], e[1])
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}
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}
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if (this._processQueue.length) {
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var pq = this._processQueue.slice(0)
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this._processQueue.length = 0
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for (var i = 0; i < pq.length; i ++) {
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var p = pq[i]
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this._processing--
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this._process(p[0], p[1], p[2], p[3])
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}
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}
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}
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}
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Glob.prototype._process = function (pattern, index, inGlobStar, cb) {
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assert(this instanceof Glob)
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assert(typeof cb === 'function')
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if (this.aborted)
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return
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this._processing++
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if (this.paused) {
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this._processQueue.push([pattern, index, inGlobStar, cb])
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return
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}
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//console.error('PROCESS %d', this._processing, pattern)
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// Get the first [n] parts of pattern that are all strings.
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var n = 0
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while (typeof pattern[n] === 'string') {
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n ++
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}
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// now n is the index of the first one that is *not* a string.
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// see if there's anything else
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var prefix
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switch (n) {
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// if not, then this is rather simple
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case pattern.length:
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this._processSimple(pattern.join('/'), index, cb)
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return
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case 0:
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// pattern *starts* with some non-trivial item.
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// going to readdir(cwd), but not include the prefix in matches.
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prefix = null
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break
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default:
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// pattern has some string bits in the front.
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// whatever it starts with, whether that's 'absolute' like /foo/bar,
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// or 'relative' like '../baz'
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prefix = pattern.slice(0, n).join('/')
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break
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}
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var remain = pattern.slice(n)
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// get the list of entries.
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var read
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if (prefix === null)
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read = '.'
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else if (isAbsolute(prefix) || isAbsolute(pattern.join('/'))) {
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if (!prefix || !isAbsolute(prefix))
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prefix = '/' + prefix
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read = prefix
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} else
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read = prefix
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var abs = this._makeAbs(read)
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//if ignored, skip _processing
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if (childrenIgnored(this, read))
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return cb()
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var isGlobStar = remain[0] === minimatch.GLOBSTAR
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if (isGlobStar)
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this._processGlobStar(prefix, read, abs, remain, index, inGlobStar, cb)
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else
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this._processReaddir(prefix, read, abs, remain, index, inGlobStar, cb)
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}
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Glob.prototype._processReaddir = function (prefix, read, abs, remain, index, inGlobStar, cb) {
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var self = this
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this._readdir(abs, inGlobStar, function (er, entries) {
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return self._processReaddir2(prefix, read, abs, remain, index, inGlobStar, entries, cb)
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})
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}
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Glob.prototype._processReaddir2 = function (prefix, read, abs, remain, index, inGlobStar, entries, cb) {
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// if the abs isn't a dir, then nothing can match!
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if (!entries)
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return cb()
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// It will only match dot entries if it starts with a dot, or if
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// dot is set. Stuff like @(.foo|.bar) isn't allowed.
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var pn = remain[0]
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var negate = !!this.minimatch.negate
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var rawGlob = pn._glob
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var dotOk = this.dot || rawGlob.charAt(0) === '.'
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var matchedEntries = []
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for (var i = 0; i < entries.length; i++) {
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var e = entries[i]
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if (e.charAt(0) !== '.' || dotOk) {
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var m
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if (negate && !prefix) {
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m = !e.match(pn)
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} else {
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m = e.match(pn)
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}
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if (m)
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matchedEntries.push(e)
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}
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}
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//console.error('prd2', prefix, entries, remain[0]._glob, matchedEntries)
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var len = matchedEntries.length
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// If there are no matched entries, then nothing matches.
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if (len === 0)
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return cb()
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// if this is the last remaining pattern bit, then no need for
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// an additional stat *unless* the user has specified mark or
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// stat explicitly. We know they exist, since readdir returned
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// them.
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if (remain.length === 1 && !this.mark && !this.stat) {
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if (!this.matches[index])
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this.matches[index] = Object.create(null)
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for (var i = 0; i < len; i ++) {
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var e = matchedEntries[i]
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if (prefix) {
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if (prefix !== '/')
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e = prefix + '/' + e
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else
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e = prefix + e
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}
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if (e.charAt(0) === '/' && !this.nomount) {
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e = path.join(this.root, e)
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}
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this._emitMatch(index, e)
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}
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// This was the last one, and no stats were needed
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return cb()
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}
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// now test all matched entries as stand-ins for that part
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// of the pattern.
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remain.shift()
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for (var i = 0; i < len; i ++) {
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var e = matchedEntries[i]
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var newPattern
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if (prefix) {
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if (prefix !== '/')
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e = prefix + '/' + e
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else
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e = prefix + e
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}
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this._process([e].concat(remain), index, inGlobStar, cb)
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}
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cb()
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}
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Glob.prototype._emitMatch = function (index, e) {
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if (this.aborted)
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return
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if (this.matches[index][e])
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return
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if (isIgnored(this, e))
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return
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if (this.paused) {
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this._emitQueue.push([index, e])
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return
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}
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var abs = this._makeAbs(e)
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if (this.nodir) {
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var c = this.cache[abs]
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if (c === 'DIR' || Array.isArray(c))
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return
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}
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if (this.mark)
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e = this._mark(e)
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this.matches[index][e] = true
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var st = this.statCache[abs]
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if (st)
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this.emit('stat', e, st)
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this.emit('match', e)
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}
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Glob.prototype._readdirInGlobStar = function (abs, cb) {
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if (this.aborted)
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return
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// follow all symlinked directories forever
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// just proceed as if this is a non-globstar situation
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if (this.follow)
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|
return this._readdir(abs, false, cb)
|
||
|
|
||
|
var lstatkey = 'lstat\0' + abs
|
||
|
var self = this
|
||
|
var lstatcb = inflight(lstatkey, lstatcb_)
|
||
|
|
||
|
if (lstatcb)
|
||
|
fs.lstat(abs, lstatcb)
|
||
|
|
||
|
function lstatcb_ (er, lstat) {
|
||
|
if (er)
|
||
|
return cb()
|
||
|
|
||
|
var isSym = lstat.isSymbolicLink()
|
||
|
self.symlinks[abs] = isSym
|
||
|
|
||
|
// If it's not a symlink or a dir, then it's definitely a regular file.
|
||
|
// don't bother doing a readdir in that case.
|
||
|
if (!isSym && !lstat.isDirectory()) {
|
||
|
self.cache[abs] = 'FILE'
|
||
|
cb()
|
||
|
} else
|
||
|
self._readdir(abs, false, cb)
|
||
|
}
|
||
|
}
|
||
|
|
||
|
Glob.prototype._readdir = function (abs, inGlobStar, cb) {
|
||
|
if (this.aborted)
|
||
|
return
|
||
|
|
||
|
cb = inflight('readdir\0'+abs+'\0'+inGlobStar, cb)
|
||
|
if (!cb)
|
||
|
return
|
||
|
|
||
|
//console.error('RD %j %j', +inGlobStar, abs)
|
||
|
if (inGlobStar && !ownProp(this.symlinks, abs))
|
||
|
return this._readdirInGlobStar(abs, cb)
|
||
|
|
||
|
if (ownProp(this.cache, abs)) {
|
||
|
var c = this.cache[abs]
|
||
|
if (!c || c === 'FILE')
|
||
|
return cb()
|
||
|
|
||
|
if (Array.isArray(c))
|
||
|
return cb(null, c)
|
||
|
}
|
||
|
|
||
|
var self = this
|
||
|
fs.readdir(abs, readdirCb(this, abs, cb))
|
||
|
}
|
||
|
|
||
|
function readdirCb (self, abs, cb) {
|
||
|
return function (er, entries) {
|
||
|
if (er)
|
||
|
self._readdirError(abs, er, cb)
|
||
|
else
|
||
|
self._readdirEntries(abs, entries, cb)
|
||
|
}
|
||
|
}
|
||
|
|
||
|
Glob.prototype._readdirEntries = function (abs, entries, cb) {
|
||
|
if (this.aborted)
|
||
|
return
|
||
|
|
||
|
// if we haven't asked to stat everything, then just
|
||
|
// assume that everything in there exists, so we can avoid
|
||
|
// having to stat it a second time.
|
||
|
if (!this.mark && !this.stat) {
|
||
|
for (var i = 0; i < entries.length; i ++) {
|
||
|
var e = entries[i]
|
||
|
if (abs === '/')
|
||
|
e = abs + e
|
||
|
else
|
||
|
e = abs + '/' + e
|
||
|
this.cache[e] = true
|
||
|
}
|
||
|
}
|
||
|
|
||
|
this.cache[abs] = entries
|
||
|
return cb(null, entries)
|
||
|
}
|
||
|
|
||
|
Glob.prototype._readdirError = function (f, er, cb) {
|
||
|
if (this.aborted)
|
||
|
return
|
||
|
|
||
|
// handle errors, and cache the information
|
||
|
switch (er.code) {
|
||
|
case 'ENOTSUP': // https://github.com/isaacs/node-glob/issues/205
|
||
|
case 'ENOTDIR': // totally normal. means it *does* exist.
|
||
|
this.cache[this._makeAbs(f)] = 'FILE'
|
||
|
break
|
||
|
|
||
|
case 'ENOENT': // not terribly unusual
|
||
|
case 'ELOOP':
|
||
|
case 'ENAMETOOLONG':
|
||
|
case 'UNKNOWN':
|
||
|
this.cache[this._makeAbs(f)] = false
|
||
|
break
|
||
|
|
||
|
default: // some unusual error. Treat as failure.
|
||
|
this.cache[this._makeAbs(f)] = false
|
||
|
if (this.strict) {
|
||
|
this.emit('error', er)
|
||
|
// If the error is handled, then we abort
|
||
|
// if not, we threw out of here
|
||
|
this.abort()
|
||
|
}
|
||
|
if (!this.silent)
|
||
|
console.error('glob error', er)
|
||
|
break
|
||
|
}
|
||
|
|
||
|
return cb()
|
||
|
}
|
||
|
|
||
|
Glob.prototype._processGlobStar = function (prefix, read, abs, remain, index, inGlobStar, cb) {
|
||
|
var self = this
|
||
|
this._readdir(abs, inGlobStar, function (er, entries) {
|
||
|
self._processGlobStar2(prefix, read, abs, remain, index, inGlobStar, entries, cb)
|
||
|
})
|
||
|
}
|
||
|
|
||
|
|
||
|
Glob.prototype._processGlobStar2 = function (prefix, read, abs, remain, index, inGlobStar, entries, cb) {
|
||
|
//console.error('pgs2', prefix, remain[0], entries)
|
||
|
|
||
|
// no entries means not a dir, so it can never have matches
|
||
|
// foo.txt/** doesn't match foo.txt
|
||
|
if (!entries)
|
||
|
return cb()
|
||
|
|
||
|
// test without the globstar, and with every child both below
|
||
|
// and replacing the globstar.
|
||
|
var remainWithoutGlobStar = remain.slice(1)
|
||
|
var gspref = prefix ? [ prefix ] : []
|
||
|
var noGlobStar = gspref.concat(remainWithoutGlobStar)
|
||
|
|
||
|
// the noGlobStar pattern exits the inGlobStar state
|
||
|
this._process(noGlobStar, index, false, cb)
|
||
|
|
||
|
var isSym = this.symlinks[abs]
|
||
|
var len = entries.length
|
||
|
|
||
|
// If it's a symlink, and we're in a globstar, then stop
|
||
|
if (isSym && inGlobStar)
|
||
|
return cb()
|
||
|
|
||
|
for (var i = 0; i < len; i++) {
|
||
|
var e = entries[i]
|
||
|
if (e.charAt(0) === '.' && !this.dot)
|
||
|
continue
|
||
|
|
||
|
// these two cases enter the inGlobStar state
|
||
|
var instead = gspref.concat(entries[i], remainWithoutGlobStar)
|
||
|
this._process(instead, index, true, cb)
|
||
|
|
||
|
var below = gspref.concat(entries[i], remain)
|
||
|
this._process(below, index, true, cb)
|
||
|
}
|
||
|
|
||
|
cb()
|
||
|
}
|
||
|
|
||
|
Glob.prototype._processSimple = function (prefix, index, cb) {
|
||
|
// XXX review this. Shouldn't it be doing the mounting etc
|
||
|
// before doing stat? kinda weird?
|
||
|
var self = this
|
||
|
this._stat(prefix, function (er, exists) {
|
||
|
self._processSimple2(prefix, index, er, exists, cb)
|
||
|
})
|
||
|
}
|
||
|
Glob.prototype._processSimple2 = function (prefix, index, er, exists, cb) {
|
||
|
|
||
|
//console.error('ps2', prefix, exists)
|
||
|
|
||
|
if (!this.matches[index])
|
||
|
this.matches[index] = Object.create(null)
|
||
|
|
||
|
// If it doesn't exist, then just mark the lack of results
|
||
|
if (!exists)
|
||
|
return cb()
|
||
|
|
||
|
if (prefix && isAbsolute(prefix) && !this.nomount) {
|
||
|
var trail = /[\/\\]$/.test(prefix)
|
||
|
if (prefix.charAt(0) === '/') {
|
||
|
prefix = path.join(this.root, prefix)
|
||
|
} else {
|
||
|
prefix = path.resolve(this.root, prefix)
|
||
|
if (trail)
|
||
|
prefix += '/'
|
||
|
}
|
||
|
}
|
||
|
|
||
|
if (process.platform === 'win32')
|
||
|
prefix = prefix.replace(/\\/g, '/')
|
||
|
|
||
|
// Mark this as a match
|
||
|
this._emitMatch(index, prefix)
|
||
|
cb()
|
||
|
}
|
||
|
|
||
|
// Returns either 'DIR', 'FILE', or false
|
||
|
Glob.prototype._stat = function (f, cb) {
|
||
|
var abs = this._makeAbs(f)
|
||
|
var needDir = f.slice(-1) === '/'
|
||
|
|
||
|
if (f.length > this.maxLength)
|
||
|
return cb()
|
||
|
|
||
|
if (!this.stat && ownProp(this.cache, abs)) {
|
||
|
var c = this.cache[abs]
|
||
|
|
||
|
if (Array.isArray(c))
|
||
|
c = 'DIR'
|
||
|
|
||
|
// It exists, but maybe not how we need it
|
||
|
if (!needDir || c === 'DIR')
|
||
|
return cb(null, c)
|
||
|
|
||
|
if (needDir && c === 'FILE')
|
||
|
return cb()
|
||
|
|
||
|
// otherwise we have to stat, because maybe c=true
|
||
|
// if we know it exists, but not what it is.
|
||
|
}
|
||
|
|
||
|
var exists
|
||
|
var stat = this.statCache[abs]
|
||
|
if (stat !== undefined) {
|
||
|
if (stat === false)
|
||
|
return cb(null, stat)
|
||
|
else {
|
||
|
var type = stat.isDirectory() ? 'DIR' : 'FILE'
|
||
|
if (needDir && type === 'FILE')
|
||
|
return cb()
|
||
|
else
|
||
|
return cb(null, type, stat)
|
||
|
}
|
||
|
}
|
||
|
|
||
|
var self = this
|
||
|
var statcb = inflight('stat\0' + abs, lstatcb_)
|
||
|
if (statcb)
|
||
|
fs.lstat(abs, statcb)
|
||
|
|
||
|
function lstatcb_ (er, lstat) {
|
||
|
if (lstat && lstat.isSymbolicLink()) {
|
||
|
// If it's a symlink, then treat it as the target, unless
|
||
|
// the target does not exist, then treat it as a file.
|
||
|
return fs.stat(abs, function (er, stat) {
|
||
|
if (er)
|
||
|
self._stat2(f, abs, null, lstat, cb)
|
||
|
else
|
||
|
self._stat2(f, abs, er, stat, cb)
|
||
|
})
|
||
|
} else {
|
||
|
self._stat2(f, abs, er, lstat, cb)
|
||
|
}
|
||
|
}
|
||
|
}
|
||
|
|
||
|
Glob.prototype._stat2 = function (f, abs, er, stat, cb) {
|
||
|
if (er) {
|
||
|
this.statCache[abs] = false
|
||
|
return cb()
|
||
|
}
|
||
|
|
||
|
var needDir = f.slice(-1) === '/'
|
||
|
this.statCache[abs] = stat
|
||
|
|
||
|
if (abs.slice(-1) === '/' && !stat.isDirectory())
|
||
|
return cb(null, false, stat)
|
||
|
|
||
|
var c = stat.isDirectory() ? 'DIR' : 'FILE'
|
||
|
this.cache[abs] = this.cache[abs] || c
|
||
|
|
||
|
if (needDir && c !== 'DIR')
|
||
|
return cb()
|
||
|
|
||
|
return cb(null, c, stat)
|
||
|
}
|