Current File : //usr/lib/node_modules/npm/node_modules/glob/glob.js
// Approach:
//
// 1. Get the minimatch set
// 2. For each pattern in the set, PROCESS(pattern, false)
// 3. Store matches per-set, then uniq them
//
// PROCESS(pattern, inGlobStar)
// Get the first [n] items from pattern that are all strings
// Join these together. This is PREFIX.
// If there is no more remaining, then stat(PREFIX) and
// add to matches if it succeeds. END.
//
// If inGlobStar and PREFIX is symlink and points to dir
// set ENTRIES = []
// else readdir(PREFIX) as ENTRIES
// If fail, END
//
// with ENTRIES
// If pattern[n] is GLOBSTAR
// // handle the case where the globstar match is empty
// // by pruning it out, and testing the resulting pattern
// PROCESS(pattern[0..n] + pattern[n+1 .. $], false)
// // handle other cases.
// for ENTRY in ENTRIES (not dotfiles)
// // attach globstar + tail onto the entry
// // Mark that this entry is a globstar match
// PROCESS(pattern[0..n] + ENTRY + pattern[n .. $], true)
//
// else // not globstar
// for ENTRY in ENTRIES (not dotfiles, unless pattern[n] is dot)
// Test ENTRY against pattern[n]
// If fails, continue
// If passes, PROCESS(pattern[0..n] + item + pattern[n+1 .. $])
//
// Caveat:
// Cache all stats and readdirs results to minimize syscall. Since all
// we ever care about is existence and directory-ness, we can just keep
// `true` for files, and [children,...] for directories, or `false` for
// things that don't exist.
module.exports = glob
var fs = require('fs')
var rp = require('fs.realpath')
var minimatch = require('minimatch')
var Minimatch = minimatch.Minimatch
var inherits = require('inherits')
var EE = require('events').EventEmitter
var path = require('path')
var assert = require('assert')
var isAbsolute = require('path-is-absolute')
var globSync = require('./sync.js')
var common = require('./common.js')
var alphasort = common.alphasort
var alphasorti = common.alphasorti
var setopts = common.setopts
var ownProp = common.ownProp
var inflight = require('inflight')
var util = require('util')
var childrenIgnored = common.childrenIgnored
var isIgnored = common.isIgnored
var once = require('once')
function glob (pattern, options, cb) {
if (typeof options === 'function') cb = options, options = {}
if (!options) options = {}
if (options.sync) {
if (cb)
throw new TypeError('callback provided to sync glob')
return globSync(pattern, options)
}
return new Glob(pattern, options, cb)
}
glob.sync = globSync
var GlobSync = glob.GlobSync = globSync.GlobSync
// old api surface
glob.glob = glob
function extend (origin, add) {
if (add === null || typeof add !== 'object') {
return origin
}
var keys = Object.keys(add)
var i = keys.length
while (i--) {
origin[keys[i]] = add[keys[i]]
}
return origin
}
glob.hasMagic = function (pattern, options_) {
var options = extend({}, options_)
options.noprocess = true
var g = new Glob(pattern, options)
var set = g.minimatch.set
if (!pattern)
return false
if (set.length > 1)
return true
for (var j = 0; j < set[0].length; j++) {
if (typeof set[0][j] !== 'string')
return true
}
return false
}
glob.Glob = Glob
inherits(Glob, EE)
function Glob (pattern, options, cb) {
if (typeof options === 'function') {
cb = options
options = null
}
if (options && options.sync) {
if (cb)
throw new TypeError('callback provided to sync glob')
return new GlobSync(pattern, options)
}
if (!(this instanceof Glob))
return new Glob(pattern, options, cb)
setopts(this, pattern, options)
this._didRealPath = false
// process each pattern in the minimatch set
var n = this.minimatch.set.length
// The matches are stored as {<filename>: true,...} so that
// duplicates are automagically pruned.
// Later, we do an Object.keys() on these.
// Keep them as a list so we can fill in when nonull is set.
this.matches = new Array(n)
if (typeof cb === 'function') {
cb = once(cb)
this.on('error', cb)
this.on('end', function (matches) {
cb(null, matches)
})
}
var self = this
this._processing = 0
this._emitQueue = []
this._processQueue = []
this.paused = false
if (this.noprocess)
return this
if (n === 0)
return done()
var sync = true
for (var i = 0; i < n; i ++) {
this._process(this.minimatch.set[i], i, false, done)
}
sync = false
function done () {
--self._processing
if (self._processing <= 0) {
if (sync) {
process.nextTick(function () {
self._finish()
})
} else {
self._finish()
}
}
}
}
Glob.prototype._finish = function () {
assert(this instanceof Glob)
if (this.aborted)
return
if (this.realpath && !this._didRealpath)
return this._realpath()
common.finish(this)
this.emit('end', this.found)
}
Glob.prototype._realpath = function () {
if (this._didRealpath)
return
this._didRealpath = true
var n = this.matches.length
if (n === 0)
return this._finish()
var self = this
for (var i = 0; i < this.matches.length; i++)
this._realpathSet(i, next)
function next () {
if (--n === 0)
self._finish()
}
}
Glob.prototype._realpathSet = function (index, cb) {
var matchset = this.matches[index]
if (!matchset)
return cb()
var found = Object.keys(matchset)
var self = this
var n = found.length
if (n === 0)
return cb()
var set = this.matches[index] = Object.create(null)
found.forEach(function (p, i) {
// If there's a problem with the stat, then it means that
// one or more of the links in the realpath couldn't be
// resolved. just return the abs value in that case.
p = self._makeAbs(p)
rp.realpath(p, self.realpathCache, function (er, real) {
if (!er)
set[real] = true
else if (er.syscall === 'stat')
set[p] = true
else
self.emit('error', er) // srsly wtf right here
if (--n === 0) {
self.matches[index] = set
cb()
}
})
})
}
Glob.prototype._mark = function (p) {
return common.mark(this, p)
}
Glob.prototype._makeAbs = function (f) {
return common.makeAbs(this, f)
}
Glob.prototype.abort = function () {
this.aborted = true
this.emit('abort')
}
Glob.prototype.pause = function () {
if (!this.paused) {
this.paused = true
this.emit('pause')
}
}
Glob.prototype.resume = function () {
if (this.paused) {
this.emit('resume')
this.paused = false
if (this._emitQueue.length) {
var eq = this._emitQueue.slice(0)
this._emitQueue.length = 0
for (var i = 0; i < eq.length; i ++) {
var e = eq[i]
this._emitMatch(e[0], e[1])
}
}
if (this._processQueue.length) {
var pq = this._processQueue.slice(0)
this._processQueue.length = 0
for (var i = 0; i < pq.length; i ++) {
var p = pq[i]
this._processing--
this._process(p[0], p[1], p[2], p[3])
}
}
}
}
Glob.prototype._process = function (pattern, index, inGlobStar, cb) {
assert(this instanceof Glob)
assert(typeof cb === 'function')
if (this.aborted)
return
this._processing++
if (this.paused) {
this._processQueue.push([pattern, index, inGlobStar, cb])
return
}
//console.error('PROCESS %d', this._processing, pattern)
// Get the first [n] parts of pattern that are all strings.
var n = 0
while (typeof pattern[n] === 'string') {
n ++
}
// now n is the index of the first one that is *not* a string.
// see if there's anything else
var prefix
switch (n) {
// if not, then this is rather simple
case pattern.length:
this._processSimple(pattern.join('/'), index, cb)
return
case 0:
// pattern *starts* with some non-trivial item.
// going to readdir(cwd), but not include the prefix in matches.
prefix = null
break
default:
// pattern has some string bits in the front.
// whatever it starts with, whether that's 'absolute' like /foo/bar,
// or 'relative' like '../baz'
prefix = pattern.slice(0, n).join('/')
break
}
var remain = pattern.slice(n)
// get the list of entries.
var read
if (prefix === null)
read = '.'
else if (isAbsolute(prefix) || isAbsolute(pattern.join('/'))) {
if (!prefix || !isAbsolute(prefix))
prefix = '/' + prefix
read = prefix
} else
read = prefix
var abs = this._makeAbs(read)
//if ignored, skip _processing
if (childrenIgnored(this, read))
return cb()
var isGlobStar = remain[0] === minimatch.GLOBSTAR
if (isGlobStar)
this._processGlobStar(prefix, read, abs, remain, index, inGlobStar, cb)
else
this._processReaddir(prefix, read, abs, remain, index, inGlobStar, cb)
}
Glob.prototype._processReaddir = function (prefix, read, abs, remain, index, inGlobStar, cb) {
var self = this
this._readdir(abs, inGlobStar, function (er, entries) {
return self._processReaddir2(prefix, read, abs, remain, index, inGlobStar, entries, cb)
})
}
Glob.prototype._processReaddir2 = function (prefix, read, abs, remain, index, inGlobStar, entries, cb) {
// if the abs isn't a dir, then nothing can match!
if (!entries)
return cb()
// It will only match dot entries if it starts with a dot, or if
// dot is set. Stuff like @(.foo|.bar) isn't allowed.
var pn = remain[0]
var negate = !!this.minimatch.negate
var rawGlob = pn._glob
var dotOk = this.dot || rawGlob.charAt(0) === '.'
var matchedEntries = []
for (var i = 0; i < entries.length; i++) {
var e = entries[i]
if (e.charAt(0) !== '.' || dotOk) {
var m
if (negate && !prefix) {
m = !e.match(pn)
} else {
m = e.match(pn)
}
if (m)
matchedEntries.push(e)
}
}
//console.error('prd2', prefix, entries, remain[0]._glob, matchedEntries)
var len = matchedEntries.length
// If there are no matched entries, then nothing matches.
if (len === 0)
return cb()
// if this is the last remaining pattern bit, then no need for
// an additional stat *unless* the user has specified mark or
// stat explicitly. We know they exist, since readdir returned
// them.
if (remain.length === 1 && !this.mark && !this.stat) {
if (!this.matches[index])
this.matches[index] = Object.create(null)
for (var i = 0; i < len; i ++) {
var e = matchedEntries[i]
if (prefix) {
if (prefix !== '/')
e = prefix + '/' + e
else
e = prefix + e
}
if (e.charAt(0) === '/' && !this.nomount) {
e = path.join(this.root, e)
}
this._emitMatch(index, e)
}
// This was the last one, and no stats were needed
return cb()
}
// now test all matched entries as stand-ins for that part
// of the pattern.
remain.shift()
for (var i = 0; i < len; i ++) {
var e = matchedEntries[i]
var newPattern
if (prefix) {
if (prefix !== '/')
e = prefix + '/' + e
else
e = prefix + e
}
this._process([e].concat(remain), index, inGlobStar, cb)
}
cb()
}
Glob.prototype._emitMatch = function (index, e) {
if (this.aborted)
return
if (isIgnored(this, e))
return
if (this.paused) {
this._emitQueue.push([index, e])
return
}
var abs = isAbsolute(e) ? e : this._makeAbs(e)
if (this.mark)
e = this._mark(e)
if (this.absolute)
e = abs
if (this.matches[index][e])
return
if (this.nodir) {
var c = this.cache[abs]
if (c === 'DIR' || Array.isArray(c))
return
}
this.matches[index][e] = true
var st = this.statCache[abs]
if (st)
this.emit('stat', e, st)
this.emit('match', e)
}
Glob.prototype._readdirInGlobStar = function (abs, cb) {
if (this.aborted)
return
// follow all symlinked directories forever
// just proceed as if this is a non-globstar situation
if (this.follow)
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 && er.code === 'ENOENT')
return cb()
var isSym = lstat && 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 && !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.
var abs = this._makeAbs(f)
this.cache[abs] = 'FILE'
if (abs === this.cwdAbs) {
var error = new Error(er.code + ' invalid cwd ' + this.cwd)
error.path = this.cwd
error.code = er.code
this.emit('error', error)
this.abort()
}
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 && (er.code === 'ENOENT' || er.code === 'ENOTDIR')) {
this.statCache[abs] = false
return cb()
}
var needDir = f.slice(-1) === '/'
this.statCache[abs] = stat
if (abs.slice(-1) === '/' && stat && !stat.isDirectory())
return cb(null, false, stat)
var c = true
if (stat)
c = stat.isDirectory() ? 'DIR' : 'FILE'
this.cache[abs] = this.cache[abs] || c
if (needDir && c === 'FILE')
return cb()
return cb(null, c, stat)
}
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