X-Git-Url: https://gerrit.simantics.org/r/gitweb?a=blobdiff_plain;ds=sidebyside;f=org.simantics.maps.server%2Fnode%2Fnode-v4.8.0-win-x64%2Fnode_modules%2Fnpm%2Fnode_modules%2Ffstream%2Flib%2Freader.js;fp=org.simantics.maps.server%2Fnode%2Fnode-v4.8.0-win-x64%2Fnode_modules%2Fnpm%2Fnode_modules%2Ffstream%2Flib%2Freader.js;h=876021f92bc9a208714b872f72e2c62c4c5e6f9e;hb=2529be6d456deeb07c128603ce4971f1dc29b695;hp=0000000000000000000000000000000000000000;hpb=2636fc31c16c23711cf2b06a4ae8537bba9c1d35;p=simantics%2Fdistrict.git diff --git a/org.simantics.maps.server/node/node-v4.8.0-win-x64/node_modules/npm/node_modules/fstream/lib/reader.js b/org.simantics.maps.server/node/node-v4.8.0-win-x64/node_modules/npm/node_modules/fstream/lib/reader.js new file mode 100644 index 00000000..876021f9 --- /dev/null +++ b/org.simantics.maps.server/node/node-v4.8.0-win-x64/node_modules/npm/node_modules/fstream/lib/reader.js @@ -0,0 +1,255 @@ +module.exports = Reader + +var fs = require('graceful-fs') +var Stream = require('stream').Stream +var inherits = require('inherits') +var path = require('path') +var getType = require('./get-type.js') +var hardLinks = Reader.hardLinks = {} +var Abstract = require('./abstract.js') + +// Must do this *before* loading the child classes +inherits(Reader, Abstract) + +var LinkReader = require('./link-reader.js') + +function Reader (props, currentStat) { + var self = this + if (!(self instanceof Reader)) return new Reader(props, currentStat) + + if (typeof props === 'string') { + props = { path: props } + } + + if (!props.path) { + self.error('Must provide a path', null, true) + } + + // polymorphism. + // call fstream.Reader(dir) to get a DirReader object, etc. + // Note that, unlike in the Writer case, ProxyReader is going + // to be the *normal* state of affairs, since we rarely know + // the type of a file prior to reading it. + + var type + var ClassType + + if (props.type && typeof props.type === 'function') { + type = props.type + ClassType = type + } else { + type = getType(props) + ClassType = Reader + } + + if (currentStat && !type) { + type = getType(currentStat) + props[type] = true + props.type = type + } + + switch (type) { + case 'Directory': + ClassType = require('./dir-reader.js') + break + + case 'Link': + // XXX hard links are just files. + // However, it would be good to keep track of files' dev+inode + // and nlink values, and create a HardLinkReader that emits + // a linkpath value of the original copy, so that the tar + // writer can preserve them. + // ClassType = HardLinkReader + // break + + case 'File': + ClassType = require('./file-reader.js') + break + + case 'SymbolicLink': + ClassType = LinkReader + break + + case 'Socket': + ClassType = require('./socket-reader.js') + break + + case null: + ClassType = require('./proxy-reader.js') + break + } + + if (!(self instanceof ClassType)) { + return new ClassType(props) + } + + Abstract.call(self) + + self.readable = true + self.writable = false + + self.type = type + self.props = props + self.depth = props.depth = props.depth || 0 + self.parent = props.parent || null + self.root = props.root || (props.parent && props.parent.root) || self + + self._path = self.path = path.resolve(props.path) + if (process.platform === 'win32') { + self.path = self._path = self.path.replace(/\?/g, '_') + if (self._path.length >= 260) { + // how DOES one create files on the moon? + // if the path has spaces in it, then UNC will fail. + self._swallowErrors = true + // if (self._path.indexOf(" ") === -1) { + self._path = '\\\\?\\' + self.path.replace(/\//g, '\\') + // } + } + } + self.basename = props.basename = path.basename(self.path) + self.dirname = props.dirname = path.dirname(self.path) + + // these have served their purpose, and are now just noisy clutter + props.parent = props.root = null + + // console.error("\n\n\n%s setting size to", props.path, props.size) + self.size = props.size + self.filter = typeof props.filter === 'function' ? props.filter : null + if (props.sort === 'alpha') props.sort = alphasort + + // start the ball rolling. + // this will stat the thing, and then call self._read() + // to start reading whatever it is. + // console.error("calling stat", props.path, currentStat) + self._stat(currentStat) +} + +function alphasort (a, b) { + return a === b ? 0 + : a.toLowerCase() > b.toLowerCase() ? 1 + : a.toLowerCase() < b.toLowerCase() ? -1 + : a > b ? 1 + : -1 +} + +Reader.prototype._stat = function (currentStat) { + var self = this + var props = self.props + var stat = props.follow ? 'stat' : 'lstat' + // console.error("Reader._stat", self._path, currentStat) + if (currentStat) process.nextTick(statCb.bind(null, null, currentStat)) + else fs[stat](self._path, statCb) + + function statCb (er, props_) { + // console.error("Reader._stat, statCb", self._path, props_, props_.nlink) + if (er) return self.error(er) + + Object.keys(props_).forEach(function (k) { + props[k] = props_[k] + }) + + // if it's not the expected size, then abort here. + if (undefined !== self.size && props.size !== self.size) { + return self.error('incorrect size') + } + self.size = props.size + + var type = getType(props) + var handleHardlinks = props.hardlinks !== false + + // special little thing for handling hardlinks. + if (handleHardlinks && type !== 'Directory' && props.nlink && props.nlink > 1) { + var k = props.dev + ':' + props.ino + // console.error("Reader has nlink", self._path, k) + if (hardLinks[k] === self._path || !hardLinks[k]) { + hardLinks[k] = self._path + } else { + // switch into hardlink mode. + type = self.type = self.props.type = 'Link' + self.Link = self.props.Link = true + self.linkpath = self.props.linkpath = hardLinks[k] + // console.error("Hardlink detected, switching mode", self._path, self.linkpath) + // Setting __proto__ would arguably be the "correct" + // approach here, but that just seems too wrong. + self._stat = self._read = LinkReader.prototype._read + } + } + + if (self.type && self.type !== type) { + self.error('Unexpected type: ' + type) + } + + // if the filter doesn't pass, then just skip over this one. + // still have to emit end so that dir-walking can move on. + if (self.filter) { + var who = self._proxy || self + // special handling for ProxyReaders + if (!self.filter.call(who, who, props)) { + if (!self._disowned) { + self.abort() + self.emit('end') + self.emit('close') + } + return + } + } + + // last chance to abort or disown before the flow starts! + var events = ['_stat', 'stat', 'ready'] + var e = 0 + ;(function go () { + if (self._aborted) { + self.emit('end') + self.emit('close') + return + } + + if (self._paused && self.type !== 'Directory') { + self.once('resume', go) + return + } + + var ev = events[e++] + if (!ev) { + return self._read() + } + self.emit(ev, props) + go() + })() + } +} + +Reader.prototype.pipe = function (dest) { + var self = this + if (typeof dest.add === 'function') { + // piping to a multi-compatible, and we've got directory entries. + self.on('entry', function (entry) { + var ret = dest.add(entry) + if (ret === false) { + self.pause() + } + }) + } + + // console.error("R Pipe apply Stream Pipe") + return Stream.prototype.pipe.apply(this, arguments) +} + +Reader.prototype.pause = function (who) { + this._paused = true + who = who || this + this.emit('pause', who) + if (this._stream) this._stream.pause(who) +} + +Reader.prototype.resume = function (who) { + this._paused = false + who = who || this + this.emit('resume', who) + if (this._stream) this._stream.resume(who) + this._read() +} + +Reader.prototype._read = function () { + this.error('Cannot read unknown type: ' + this.type) +}