diff options
Diffstat (limited to 'deps/node/deps/npm/node_modules/node-gyp/node_modules/tar/lib/parse.js')
| -rw-r--r-- | deps/node/deps/npm/node_modules/node-gyp/node_modules/tar/lib/parse.js | 275 |
1 files changed, 0 insertions, 275 deletions
diff --git a/deps/node/deps/npm/node_modules/node-gyp/node_modules/tar/lib/parse.js b/deps/node/deps/npm/node_modules/node-gyp/node_modules/tar/lib/parse.js deleted file mode 100644 index 600ad782..00000000 --- a/deps/node/deps/npm/node_modules/node-gyp/node_modules/tar/lib/parse.js +++ /dev/null @@ -1,275 +0,0 @@ - -// A writable stream. -// It emits "entry" events, which provide a readable stream that has -// header info attached. - -module.exports = Parse.create = Parse - -var stream = require("stream") - , Stream = stream.Stream - , BlockStream = require("block-stream") - , tar = require("../tar.js") - , TarHeader = require("./header.js") - , Entry = require("./entry.js") - , BufferEntry = require("./buffer-entry.js") - , ExtendedHeader = require("./extended-header.js") - , assert = require("assert").ok - , inherits = require("inherits") - , fstream = require("fstream") - -// reading a tar is a lot like reading a directory -// However, we're actually not going to run the ctor, -// since it does a stat and various other stuff. -// This inheritance gives us the pause/resume/pipe -// behavior that is desired. -inherits(Parse, fstream.Reader) - -function Parse () { - var me = this - if (!(me instanceof Parse)) return new Parse() - - // doesn't apply fstream.Reader ctor? - // no, becasue we don't want to stat/etc, we just - // want to get the entry/add logic from .pipe() - Stream.apply(me) - - me.writable = true - me.readable = true - me._stream = new BlockStream(512) - me.position = 0 - me._ended = false - - me._stream.on("error", function (e) { - me.emit("error", e) - }) - - me._stream.on("data", function (c) { - me._process(c) - }) - - me._stream.on("end", function () { - me._streamEnd() - }) - - me._stream.on("drain", function () { - me.emit("drain") - }) -} - -// overridden in Extract class, since it needs to -// wait for its DirWriter part to finish before -// emitting "end" -Parse.prototype._streamEnd = function () { - var me = this - if (!me._ended || me._entry) me.error("unexpected eof") - me.emit("end") -} - -// a tar reader is actually a filter, not just a readable stream. -// So, you should pipe a tarball stream into it, and it needs these -// write/end methods to do that. -Parse.prototype.write = function (c) { - if (this._ended) { - // gnutar puts a LOT of nulls at the end. - // you can keep writing these things forever. - // Just ignore them. - for (var i = 0, l = c.length; i > l; i ++) { - if (c[i] !== 0) return this.error("write() after end()") - } - return - } - return this._stream.write(c) -} - -Parse.prototype.end = function (c) { - this._ended = true - return this._stream.end(c) -} - -// don't need to do anything, since we're just -// proxying the data up from the _stream. -// Just need to override the parent's "Not Implemented" -// error-thrower. -Parse.prototype._read = function () {} - -Parse.prototype._process = function (c) { - assert(c && c.length === 512, "block size should be 512") - - // one of three cases. - // 1. A new header - // 2. A part of a file/extended header - // 3. One of two or more EOF null blocks - - if (this._entry) { - var entry = this._entry - if(!entry._abort) entry.write(c) - else { - entry._remaining -= c.length - if(entry._remaining < 0) entry._remaining = 0 - } - if (entry._remaining === 0) { - entry.end() - this._entry = null - } - } else { - // either zeroes or a header - var zero = true - for (var i = 0; i < 512 && zero; i ++) { - zero = c[i] === 0 - } - - // eof is *at least* 2 blocks of nulls, and then the end of the - // file. you can put blocks of nulls between entries anywhere, - // so appending one tarball to another is technically valid. - // ending without the eof null blocks is not allowed, however. - if (zero) { - if (this._eofStarted) - this._ended = true - this._eofStarted = true - } else { - this._eofStarted = false - this._startEntry(c) - } - } - - this.position += 512 -} - -// take a header chunk, start the right kind of entry. -Parse.prototype._startEntry = function (c) { - var header = new TarHeader(c) - , self = this - , entry - , ev - , EntryType - , onend - , meta = false - - if (null === header.size || !header.cksumValid) { - var e = new Error("invalid tar file") - e.header = header - e.tar_file_offset = this.position - e.tar_block = this.position / 512 - return this.emit("error", e) - } - - switch (tar.types[header.type]) { - case "File": - case "OldFile": - case "Link": - case "SymbolicLink": - case "CharacterDevice": - case "BlockDevice": - case "Directory": - case "FIFO": - case "ContiguousFile": - case "GNUDumpDir": - // start a file. - // pass in any extended headers - // These ones consumers are typically most interested in. - EntryType = Entry - ev = "entry" - break - - case "GlobalExtendedHeader": - // extended headers that apply to the rest of the tarball - EntryType = ExtendedHeader - onend = function () { - self._global = self._global || {} - Object.keys(entry.fields).forEach(function (k) { - self._global[k] = entry.fields[k] - }) - } - ev = "globalExtendedHeader" - meta = true - break - - case "ExtendedHeader": - case "OldExtendedHeader": - // extended headers that apply to the next entry - EntryType = ExtendedHeader - onend = function () { - self._extended = entry.fields - } - ev = "extendedHeader" - meta = true - break - - case "NextFileHasLongLinkpath": - // set linkpath=<contents> in extended header - EntryType = BufferEntry - onend = function () { - self._extended = self._extended || {} - self._extended.linkpath = entry.body - } - ev = "longLinkpath" - meta = true - break - - case "NextFileHasLongPath": - case "OldGnuLongPath": - // set path=<contents> in file-extended header - EntryType = BufferEntry - onend = function () { - self._extended = self._extended || {} - self._extended.path = entry.body - } - ev = "longPath" - meta = true - break - - default: - // all the rest we skip, but still set the _entry - // member, so that we can skip over their data appropriately. - // emit an event to say that this is an ignored entry type? - EntryType = Entry - ev = "ignoredEntry" - break - } - - var global, extended - if (meta) { - global = extended = null - } else { - var global = this._global - var extended = this._extended - - // extendedHeader only applies to one entry, so once we start - // an entry, it's over. - this._extended = null - } - entry = new EntryType(header, extended, global) - entry.meta = meta - - // only proxy data events of normal files. - if (!meta) { - entry.on("data", function (c) { - me.emit("data", c) - }) - } - - if (onend) entry.on("end", onend) - - this._entry = entry - var me = this - - entry.on("pause", function () { - me.pause() - }) - - entry.on("resume", function () { - me.resume() - }) - - if (this.listeners("*").length) { - this.emit("*", ev, entry) - } - - this.emit(ev, entry) - - // Zero-byte entry. End immediately. - if (entry.props.size === 0) { - entry.end() - this._entry = null - } -} |