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sync.js11.7 KB · 487 lines
module.exports = globSyncglobSync.GlobSync = GlobSync var rp = require('fs.realpath')var minimatch = require('minimatch')var Minimatch = minimatch.Minimatchvar Glob = require('./glob.js').Globvar util = require('util')var path = require('path')var assert = require('assert')var isAbsolute = require('path-is-absolute')var common = require('./common.js')var setopts = common.setoptsvar ownProp = common.ownPropvar childrenIgnored = common.childrenIgnoredvar isIgnored = common.isIgnored function globSync (pattern, options) {  if (typeof options === 'function' || arguments.length === 3)    throw new TypeError('callback provided to sync glob\n'+                        'See: https://github.com/isaacs/node-glob/issues/167')   return new GlobSync(pattern, options).found} function GlobSync (pattern, options) {  if (!pattern)    throw new Error('must provide pattern')   if (typeof options === 'function' || arguments.length === 3)    throw new TypeError('callback provided to sync glob\n'+                        'See: https://github.com/isaacs/node-glob/issues/167')   if (!(this instanceof GlobSync))    return new GlobSync(pattern, options)   setopts(this, pattern, options)   if (this.noprocess)    return this   var n = this.minimatch.set.length  this.matches = new Array(n)  for (var i = 0; i < n; i ++) {    this._process(this.minimatch.set[i], i, false)  }  this._finish()} GlobSync.prototype._finish = function () {  assert.ok(this instanceof GlobSync)  if (this.realpath) {    var self = this    this.matches.forEach(function (matchset, index) {      var set = self.matches[index] = Object.create(null)      for (var p in matchset) {        try {          p = self._makeAbs(p)          var real = rp.realpathSync(p, self.realpathCache)          set[real] = true        } catch (er) {          if (er.syscall === 'stat')            set[self._makeAbs(p)] = true          else            throw er        }      }    })  }  common.finish(this)}  GlobSync.prototype._process = function (pattern, index, inGlobStar) {  assert.ok(this instanceof GlobSync)   // 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)      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.map(function (p) {        return typeof p === 'string' ? p : '[*]'      }).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   var isGlobStar = remain[0] === minimatch.GLOBSTAR  if (isGlobStar)    this._processGlobStar(prefix, read, abs, remain, index, inGlobStar)  else    this._processReaddir(prefix, read, abs, remain, index, inGlobStar)}  GlobSync.prototype._processReaddir = function (prefix, read, abs, remain, index, inGlobStar) {  var entries = this._readdir(abs, inGlobStar)   // if the abs isn't a dir, then nothing can match!  if (!entries)    return   // 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)    }  }   var len = matchedEntries.length  // If there are no matched entries, then nothing matches.  if (len === 0)    return   // 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.slice(-1) !== '/')          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  }   // 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)      newPattern = [prefix, e]    else      newPattern = [e]    this._process(newPattern.concat(remain), index, inGlobStar)  }}  GlobSync.prototype._emitMatch = function (index, e) {  if (isIgnored(this, e))    return   var abs = 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   if (this.stat)    this._stat(e)}  GlobSync.prototype._readdirInGlobStar = function (abs) {  // follow all symlinked directories forever  // just proceed as if this is a non-globstar situation  if (this.follow)    return this._readdir(abs, false)   var entries  var lstat  var stat  try {    lstat = this.fs.lstatSync(abs)  } catch (er) {    if (er.code === 'ENOENT') {      // lstat failed, doesn't exist      return null    }  }   var isSym = lstat && lstat.isSymbolicLink()  this.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())    this.cache[abs] = 'FILE'  else    entries = this._readdir(abs, false)   return entries} GlobSync.prototype._readdir = function (abs, inGlobStar) {  var entries   if (inGlobStar && !ownProp(this.symlinks, abs))    return this._readdirInGlobStar(abs)   if (ownProp(this.cache, abs)) {    var c = this.cache[abs]    if (!c || c === 'FILE')      return null     if (Array.isArray(c))      return c  }   try {    return this._readdirEntries(abs, this.fs.readdirSync(abs))  } catch (er) {    this._readdirError(abs, er)    return null  }} GlobSync.prototype._readdirEntries = function (abs, entries) {  // 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   // mark and cache dir-ness  return entries} GlobSync.prototype._readdirError = function (f, er) {  // 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        throw error      }      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)        throw er      if (!this.silent)        console.error('glob error', er)      break  }} GlobSync.prototype._processGlobStar = function (prefix, read, abs, remain, index, inGlobStar) {   var entries = this._readdir(abs, inGlobStar)   // no entries means not a dir, so it can never have matches  // foo.txt/** doesn't match foo.txt  if (!entries)    return   // 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)   var len = entries.length  var isSym = this.symlinks[abs]   // If it's a symlink, and we're in a globstar, then stop  if (isSym && inGlobStar)    return   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)     var below = gspref.concat(entries[i], remain)    this._process(below, index, true)  }} GlobSync.prototype._processSimple = function (prefix, index) {  // XXX review this.  Shouldn't it be doing the mounting etc  // before doing stat?  kinda weird?  var exists = this._stat(prefix)   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   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)} // Returns either 'DIR', 'FILE', or falseGlobSync.prototype._stat = function (f) {  var abs = this._makeAbs(f)  var needDir = f.slice(-1) === '/'   if (f.length > this.maxLength)    return false   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 c     if (needDir && c === 'FILE')      return false     // 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) {    var lstat    try {      lstat = this.fs.lstatSync(abs)    } catch (er) {      if (er && (er.code === 'ENOENT' || er.code === 'ENOTDIR')) {        this.statCache[abs] = false        return false      }    }     if (lstat && lstat.isSymbolicLink()) {      try {        stat = this.fs.statSync(abs)      } catch (er) {        stat = lstat      }    } else {      stat = lstat    }  }   this.statCache[abs] = stat   var c = true  if (stat)    c = stat.isDirectory() ? 'DIR' : 'FILE'   this.cache[abs] = this.cache[abs] || c   if (needDir && c === 'FILE')    return false   return c} GlobSync.prototype._mark = function (p) {  return common.mark(this, p)} GlobSync.prototype._makeAbs = function (f) {  return common.makeAbs(this, f)}