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Diffstat (limited to 'deps/npm/node_modules/node-gyp/node_modules/tar/node_modules/block-stream')
5 files changed, 326 insertions, 0 deletions
diff --git a/deps/npm/node_modules/node-gyp/node_modules/tar/node_modules/block-stream/LICENCE b/deps/npm/node_modules/node-gyp/node_modules/tar/node_modules/block-stream/LICENCE new file mode 100644 index 0000000000..74489e2e26 --- /dev/null +++ b/deps/npm/node_modules/node-gyp/node_modules/tar/node_modules/block-stream/LICENCE @@ -0,0 +1,25 @@ +Copyright (c) Isaac Z. Schlueter +All rights reserved. + +The BSD License + +Redistribution and use in source and binary forms, with or without +modification, are permitted provided that the following conditions +are met: +1. Redistributions of source code must retain the above copyright + notice, this list of conditions and the following disclaimer. +2. Redistributions in binary form must reproduce the above copyright + notice, this list of conditions and the following disclaimer in the + documentation and/or other materials provided with the distribution. + +THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS +``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED +TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR +PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS +BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR +CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF +SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS +INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN +CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) +ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE +POSSIBILITY OF SUCH DAMAGE. diff --git a/deps/npm/node_modules/node-gyp/node_modules/tar/node_modules/block-stream/LICENSE b/deps/npm/node_modules/node-gyp/node_modules/tar/node_modules/block-stream/LICENSE new file mode 100644 index 0000000000..19129e315f --- /dev/null +++ b/deps/npm/node_modules/node-gyp/node_modules/tar/node_modules/block-stream/LICENSE @@ -0,0 +1,15 @@ +The ISC License + +Copyright (c) Isaac Z. Schlueter and Contributors + +Permission to use, copy, modify, and/or distribute this software for any +purpose with or without fee is hereby granted, provided that the above +copyright notice and this permission notice appear in all copies. + +THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES +WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF +MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR +ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES +WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN +ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR +IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. diff --git a/deps/npm/node_modules/node-gyp/node_modules/tar/node_modules/block-stream/README.md b/deps/npm/node_modules/node-gyp/node_modules/tar/node_modules/block-stream/README.md new file mode 100644 index 0000000000..c16e9c4688 --- /dev/null +++ b/deps/npm/node_modules/node-gyp/node_modules/tar/node_modules/block-stream/README.md @@ -0,0 +1,14 @@ +# block-stream + +A stream of blocks. + +Write data into it, and it'll output data in buffer blocks the size you +specify, padding with zeroes if necessary. + +```javascript +var block = new BlockStream(512) +fs.createReadStream("some-file").pipe(block) +block.pipe(fs.createWriteStream("block-file")) +``` + +When `.end()` or `.flush()` is called, it'll pad the block with zeroes. diff --git a/deps/npm/node_modules/node-gyp/node_modules/tar/node_modules/block-stream/block-stream.js b/deps/npm/node_modules/node-gyp/node_modules/tar/node_modules/block-stream/block-stream.js new file mode 100644 index 0000000000..008de035c2 --- /dev/null +++ b/deps/npm/node_modules/node-gyp/node_modules/tar/node_modules/block-stream/block-stream.js @@ -0,0 +1,209 @@ +// write data to it, and it'll emit data in 512 byte blocks. +// if you .end() or .flush(), it'll emit whatever it's got, +// padded with nulls to 512 bytes. + +module.exports = BlockStream + +var Stream = require("stream").Stream + , inherits = require("inherits") + , assert = require("assert").ok + , debug = process.env.DEBUG ? console.error : function () {} + +function BlockStream (size, opt) { + this.writable = this.readable = true + this._opt = opt || {} + this._chunkSize = size || 512 + this._offset = 0 + this._buffer = [] + this._bufferLength = 0 + if (this._opt.nopad) this._zeroes = false + else { + this._zeroes = new Buffer(this._chunkSize) + for (var i = 0; i < this._chunkSize; i ++) { + this._zeroes[i] = 0 + } + } +} + +inherits(BlockStream, Stream) + +BlockStream.prototype.write = function (c) { + // debug(" BS write", c) + if (this._ended) throw new Error("BlockStream: write after end") + if (c && !Buffer.isBuffer(c)) c = new Buffer(c + "") + if (c.length) { + this._buffer.push(c) + this._bufferLength += c.length + } + // debug("pushed onto buffer", this._bufferLength) + if (this._bufferLength >= this._chunkSize) { + if (this._paused) { + // debug(" BS paused, return false, need drain") + this._needDrain = true + return false + } + this._emitChunk() + } + return true +} + +BlockStream.prototype.pause = function () { + // debug(" BS pausing") + this._paused = true +} + +BlockStream.prototype.resume = function () { + // debug(" BS resume") + this._paused = false + return this._emitChunk() +} + +BlockStream.prototype.end = function (chunk) { + // debug("end", chunk) + if (typeof chunk === "function") cb = chunk, chunk = null + if (chunk) this.write(chunk) + this._ended = true + this.flush() +} + +BlockStream.prototype.flush = function () { + this._emitChunk(true) +} + +BlockStream.prototype._emitChunk = function (flush) { + // debug("emitChunk flush=%j emitting=%j paused=%j", flush, this._emitting, this._paused) + + // emit a <chunkSize> chunk + if (flush && this._zeroes) { + // debug(" BS push zeroes", this._bufferLength) + // push a chunk of zeroes + var padBytes = (this._bufferLength % this._chunkSize) + if (padBytes !== 0) padBytes = this._chunkSize - padBytes + if (padBytes > 0) { + // debug("padBytes", padBytes, this._zeroes.slice(0, padBytes)) + this._buffer.push(this._zeroes.slice(0, padBytes)) + this._bufferLength += padBytes + // debug(this._buffer[this._buffer.length - 1].length, this._bufferLength) + } + } + + if (this._emitting || this._paused) return + this._emitting = true + + // debug(" BS entering loops") + var bufferIndex = 0 + while (this._bufferLength >= this._chunkSize && + (flush || !this._paused)) { + // debug(" BS data emission loop", this._bufferLength) + + var out + , outOffset = 0 + , outHas = this._chunkSize + + while (outHas > 0 && (flush || !this._paused) ) { + // debug(" BS data inner emit loop", this._bufferLength) + var cur = this._buffer[bufferIndex] + , curHas = cur.length - this._offset + // debug("cur=", cur) + // debug("curHas=%j", curHas) + // If it's not big enough to fill the whole thing, then we'll need + // to copy multiple buffers into one. However, if it is big enough, + // then just slice out the part we want, to save unnecessary copying. + // Also, need to copy if we've already done some copying, since buffers + // can't be joined like cons strings. + if (out || curHas < outHas) { + out = out || new Buffer(this._chunkSize) + cur.copy(out, outOffset, + this._offset, this._offset + Math.min(curHas, outHas)) + } else if (cur.length === outHas && this._offset === 0) { + // shortcut -- cur is exactly long enough, and no offset. + out = cur + } else { + // slice out the piece of cur that we need. + out = cur.slice(this._offset, this._offset + outHas) + } + + if (curHas > outHas) { + // means that the current buffer couldn't be completely output + // update this._offset to reflect how much WAS written + this._offset += outHas + outHas = 0 + } else { + // output the entire current chunk. + // toss it away + outHas -= curHas + outOffset += curHas + bufferIndex ++ + this._offset = 0 + } + } + + this._bufferLength -= this._chunkSize + assert(out.length === this._chunkSize) + // debug("emitting data", out) + // debug(" BS emitting, paused=%j", this._paused, this._bufferLength) + this.emit("data", out) + out = null + } + // debug(" BS out of loops", this._bufferLength) + + // whatever is left, it's not enough to fill up a block, or we're paused + this._buffer = this._buffer.slice(bufferIndex) + if (this._paused) { + // debug(" BS paused, leaving", this._bufferLength) + this._needsDrain = true + this._emitting = false + return + } + + // if flushing, and not using null-padding, then need to emit the last + // chunk(s) sitting in the queue. We know that it's not enough to + // fill up a whole block, because otherwise it would have been emitted + // above, but there may be some offset. + var l = this._buffer.length + if (flush && !this._zeroes && l) { + if (l === 1) { + if (this._offset) { + this.emit("data", this._buffer[0].slice(this._offset)) + } else { + this.emit("data", this._buffer[0]) + } + } else { + var outHas = this._bufferLength + , out = new Buffer(outHas) + , outOffset = 0 + for (var i = 0; i < l; i ++) { + var cur = this._buffer[i] + , curHas = cur.length - this._offset + cur.copy(out, outOffset, this._offset) + this._offset = 0 + outOffset += curHas + this._bufferLength -= curHas + } + this.emit("data", out) + } + // truncate + this._buffer.length = 0 + this._bufferLength = 0 + this._offset = 0 + } + + // now either drained or ended + // debug("either draining, or ended", this._bufferLength, this._ended) + // means that we've flushed out all that we can so far. + if (this._needDrain) { + // debug("emitting drain", this._bufferLength) + this._needDrain = false + this.emit("drain") + } + + if ((this._bufferLength === 0) && this._ended && !this._endEmitted) { + // debug("emitting end", this._bufferLength) + this._endEmitted = true + this.emit("end") + } + + this._emitting = false + + // debug(" BS no longer emitting", flush, this._paused, this._emitting, this._bufferLength, this._chunkSize) +} diff --git a/deps/npm/node_modules/node-gyp/node_modules/tar/node_modules/block-stream/package.json b/deps/npm/node_modules/node-gyp/node_modules/tar/node_modules/block-stream/package.json new file mode 100644 index 0000000000..bf449e9633 --- /dev/null +++ b/deps/npm/node_modules/node-gyp/node_modules/tar/node_modules/block-stream/package.json @@ -0,0 +1,63 @@ +{ + "_args": [ + [ + "block-stream@0.0.9", + "/Users/rebecca/code/npm" + ] + ], + "_from": "block-stream@0.0.9", + "_id": "block-stream@0.0.9", + "_inBundle": false, + "_integrity": "sha1-E+v+d4oDIFz+A3UUgeu0szAMEmo=", + "_location": "/node-gyp/tar/block-stream", + "_phantomChildren": {}, + "_requested": { + "type": "version", + "registry": true, + "raw": "block-stream@0.0.9", + "name": "block-stream", + "escapedName": "block-stream", + "rawSpec": "0.0.9", + "saveSpec": null, + "fetchSpec": "0.0.9" + }, + "_requiredBy": [ + "/node-gyp/tar" + ], + "_resolved": "https://registry.npmjs.org/block-stream/-/block-stream-0.0.9.tgz", + "_spec": "0.0.9", + "_where": "/Users/rebecca/code/npm", + "author": { + "name": "Isaac Z. Schlueter", + "email": "i@izs.me", + "url": "http://blog.izs.me/" + }, + "bugs": { + "url": "https://github.com/isaacs/block-stream/issues" + }, + "dependencies": { + "inherits": "~2.0.0" + }, + "description": "a stream of blocks", + "devDependencies": { + "tap": "^5.7.1" + }, + "engines": { + "node": "0.4 || >=0.5.8" + }, + "files": [ + "block-stream.js" + ], + "homepage": "https://github.com/isaacs/block-stream#readme", + "license": "ISC", + "main": "block-stream.js", + "name": "block-stream", + "repository": { + "type": "git", + "url": "git://github.com/isaacs/block-stream.git" + }, + "scripts": { + "test": "tap test/*.js --cov" + }, + "version": "0.0.9" +} |