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%2Ftar%2Flib%2Fentry.js;fp=org.simantics.maps.server%2Fnode%2Fnode-v4.8.0-win-x64%2Fnode_modules%2Fnpm%2Fnode_modules%2Ftar%2Flib%2Fentry.js;h=5f5dd3c2688a8b9bfe88c7f4b0a54e77a9142ca9;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/tar/lib/entry.js b/org.simantics.maps.server/node/node-v4.8.0-win-x64/node_modules/npm/node_modules/tar/lib/entry.js new file mode 100644 index 00000000..5f5dd3c2 --- /dev/null +++ b/org.simantics.maps.server/node/node-v4.8.0-win-x64/node_modules/npm/node_modules/tar/lib/entry.js @@ -0,0 +1,220 @@ +// A passthrough read/write stream that sets its properties +// based on a header, extendedHeader, and globalHeader +// +// Can be either a file system object of some sort, or +// a pax/ustar metadata entry. + +module.exports = Entry + +var TarHeader = require("./header.js") + , tar = require("../tar") + , assert = require("assert").ok + , Stream = require("stream").Stream + , inherits = require("inherits") + , fstream = require("fstream").Abstract + +function Entry (header, extended, global) { + Stream.call(this) + this.readable = true + this.writable = true + + this._needDrain = false + this._paused = false + this._reading = false + this._ending = false + this._ended = false + this._remaining = 0 + this._abort = false + this._queue = [] + this._index = 0 + this._queueLen = 0 + + this._read = this._read.bind(this) + + this.props = {} + this._header = header + this._extended = extended || {} + + // globals can change throughout the course of + // a file parse operation. Freeze it at its current state. + this._global = {} + var me = this + Object.keys(global || {}).forEach(function (g) { + me._global[g] = global[g] + }) + + this._setProps() +} + +inherits(Entry, Stream) + +Entry.prototype.write = function (c) { + if (this._ending) this.error("write() after end()", null, true) + if (this._remaining === 0) { + this.error("invalid bytes past eof") + } + + // often we'll get a bunch of \0 at the end of the last write, + // since chunks will always be 512 bytes when reading a tarball. + if (c.length > this._remaining) { + c = c.slice(0, this._remaining) + } + this._remaining -= c.length + + // put it on the stack. + var ql = this._queueLen + this._queue.push(c) + this._queueLen ++ + + this._read() + + // either paused, or buffered + if (this._paused || ql > 0) { + this._needDrain = true + return false + } + + return true +} + +Entry.prototype.end = function (c) { + if (c) this.write(c) + this._ending = true + this._read() +} + +Entry.prototype.pause = function () { + this._paused = true + this.emit("pause") +} + +Entry.prototype.resume = function () { + // console.error(" Tar Entry resume", this.path) + this.emit("resume") + this._paused = false + this._read() + return this._queueLen - this._index > 1 +} + + // This is bound to the instance +Entry.prototype._read = function () { + // console.error(" Tar Entry _read", this.path) + + if (this._paused || this._reading || this._ended) return + + // set this flag so that event handlers don't inadvertently + // get multiple _read() calls running. + this._reading = true + + // have any data to emit? + while (this._index < this._queueLen && !this._paused) { + var chunk = this._queue[this._index ++] + this.emit("data", chunk) + } + + // check if we're drained + if (this._index >= this._queueLen) { + this._queue.length = this._queueLen = this._index = 0 + if (this._needDrain) { + this._needDrain = false + this.emit("drain") + } + if (this._ending) { + this._ended = true + this.emit("end") + } + } + + // if the queue gets too big, then pluck off whatever we can. + // this should be fairly rare. + var mql = this._maxQueueLen + if (this._queueLen > mql && this._index > 0) { + mql = Math.min(this._index, mql) + this._index -= mql + this._queueLen -= mql + this._queue = this._queue.slice(mql) + } + + this._reading = false +} + +Entry.prototype._setProps = function () { + // props = extended->global->header->{} + var header = this._header + , extended = this._extended + , global = this._global + , props = this.props + + // first get the values from the normal header. + var fields = tar.fields + for (var f = 0; fields[f] !== null; f ++) { + var field = fields[f] + , val = header[field] + if (typeof val !== "undefined") props[field] = val + } + + // next, the global header for this file. + // numeric values, etc, will have already been parsed. + ;[global, extended].forEach(function (p) { + Object.keys(p).forEach(function (f) { + if (typeof p[f] !== "undefined") props[f] = p[f] + }) + }) + + // no nulls allowed in path or linkpath + ;["path", "linkpath"].forEach(function (p) { + if (props.hasOwnProperty(p)) { + props[p] = props[p].split("\0")[0] + } + }) + + + // set date fields to be a proper date + ;["mtime", "ctime", "atime"].forEach(function (p) { + if (props.hasOwnProperty(p)) { + props[p] = new Date(props[p] * 1000) + } + }) + + // set the type so that we know what kind of file to create + var type + switch (tar.types[props.type]) { + case "OldFile": + case "ContiguousFile": + type = "File" + break + + case "GNUDumpDir": + type = "Directory" + break + + case undefined: + type = "Unknown" + break + + case "Link": + case "SymbolicLink": + case "CharacterDevice": + case "BlockDevice": + case "Directory": + case "FIFO": + default: + type = tar.types[props.type] + } + + this.type = type + this.path = props.path + this.size = props.size + + // size is special, since it signals when the file needs to end. + this._remaining = props.size +} + +// the parser may not call write if _abort is true. +// useful for skipping data from some files quickly. +Entry.prototype.abort = function(){ + this._abort = true +} + +Entry.prototype.warn = fstream.warn +Entry.prototype.error = fstream.error