diff options
Diffstat (limited to 'deps/npm/node_modules/pacote/node_modules/tar-stream/node_modules/bl/bl.js')
| -rw-r--r-- | deps/npm/node_modules/pacote/node_modules/tar-stream/node_modules/bl/bl.js | 280 |
1 files changed, 0 insertions, 280 deletions
diff --git a/deps/npm/node_modules/pacote/node_modules/tar-stream/node_modules/bl/bl.js b/deps/npm/node_modules/pacote/node_modules/tar-stream/node_modules/bl/bl.js deleted file mode 100644 index 98983316c4..0000000000 --- a/deps/npm/node_modules/pacote/node_modules/tar-stream/node_modules/bl/bl.js +++ /dev/null @@ -1,280 +0,0 @@ -var DuplexStream = require('readable-stream/duplex') - , util = require('util') - - -function BufferList (callback) { - if (!(this instanceof BufferList)) - return new BufferList(callback) - - this._bufs = [] - this.length = 0 - - if (typeof callback == 'function') { - this._callback = callback - - var piper = function piper (err) { - if (this._callback) { - this._callback(err) - this._callback = null - } - }.bind(this) - - this.on('pipe', function onPipe (src) { - src.on('error', piper) - }) - this.on('unpipe', function onUnpipe (src) { - src.removeListener('error', piper) - }) - } else { - this.append(callback) - } - - DuplexStream.call(this) -} - - -util.inherits(BufferList, DuplexStream) - - -BufferList.prototype._offset = function _offset (offset) { - var tot = 0, i = 0, _t - if (offset === 0) return [ 0, 0 ] - for (; i < this._bufs.length; i++) { - _t = tot + this._bufs[i].length - if (offset < _t || i == this._bufs.length - 1) - return [ i, offset - tot ] - tot = _t - } -} - - -BufferList.prototype.append = function append (buf) { - var i = 0 - - if (Buffer.isBuffer(buf)) { - this._appendBuffer(buf); - } else if (Array.isArray(buf)) { - for (; i < buf.length; i++) - this.append(buf[i]) - } else if (buf instanceof BufferList) { - // unwrap argument into individual BufferLists - for (; i < buf._bufs.length; i++) - this.append(buf._bufs[i]) - } else if (buf != null) { - // coerce number arguments to strings, since Buffer(number) does - // uninitialized memory allocation - if (typeof buf == 'number') - buf = buf.toString() - - this._appendBuffer(new Buffer(buf)); - } - - return this -} - - -BufferList.prototype._appendBuffer = function appendBuffer (buf) { - this._bufs.push(buf) - this.length += buf.length -} - - -BufferList.prototype._write = function _write (buf, encoding, callback) { - this._appendBuffer(buf) - - if (typeof callback == 'function') - callback() -} - - -BufferList.prototype._read = function _read (size) { - if (!this.length) - return this.push(null) - - size = Math.min(size, this.length) - this.push(this.slice(0, size)) - this.consume(size) -} - - -BufferList.prototype.end = function end (chunk) { - DuplexStream.prototype.end.call(this, chunk) - - if (this._callback) { - this._callback(null, this.slice()) - this._callback = null - } -} - - -BufferList.prototype.get = function get (index) { - return this.slice(index, index + 1)[0] -} - - -BufferList.prototype.slice = function slice (start, end) { - if (typeof start == 'number' && start < 0) - start += this.length - if (typeof end == 'number' && end < 0) - end += this.length - return this.copy(null, 0, start, end) -} - - -BufferList.prototype.copy = function copy (dst, dstStart, srcStart, srcEnd) { - if (typeof srcStart != 'number' || srcStart < 0) - srcStart = 0 - if (typeof srcEnd != 'number' || srcEnd > this.length) - srcEnd = this.length - if (srcStart >= this.length) - return dst || new Buffer(0) - if (srcEnd <= 0) - return dst || new Buffer(0) - - var copy = !!dst - , off = this._offset(srcStart) - , len = srcEnd - srcStart - , bytes = len - , bufoff = (copy && dstStart) || 0 - , start = off[1] - , l - , i - - // copy/slice everything - if (srcStart === 0 && srcEnd == this.length) { - if (!copy) { // slice, but full concat if multiple buffers - return this._bufs.length === 1 - ? this._bufs[0] - : Buffer.concat(this._bufs, this.length) - } - - // copy, need to copy individual buffers - for (i = 0; i < this._bufs.length; i++) { - this._bufs[i].copy(dst, bufoff) - bufoff += this._bufs[i].length - } - - return dst - } - - // easy, cheap case where it's a subset of one of the buffers - if (bytes <= this._bufs[off[0]].length - start) { - return copy - ? this._bufs[off[0]].copy(dst, dstStart, start, start + bytes) - : this._bufs[off[0]].slice(start, start + bytes) - } - - if (!copy) // a slice, we need something to copy in to - dst = new Buffer(len) - - for (i = off[0]; i < this._bufs.length; i++) { - l = this._bufs[i].length - start - - if (bytes > l) { - this._bufs[i].copy(dst, bufoff, start) - } else { - this._bufs[i].copy(dst, bufoff, start, start + bytes) - break - } - - bufoff += l - bytes -= l - - if (start) - start = 0 - } - - return dst -} - -BufferList.prototype.shallowSlice = function shallowSlice (start, end) { - start = start || 0 - end = end || this.length - - if (start < 0) - start += this.length - if (end < 0) - end += this.length - - var startOffset = this._offset(start) - , endOffset = this._offset(end) - , buffers = this._bufs.slice(startOffset[0], endOffset[0] + 1) - - if (endOffset[1] == 0) - buffers.pop() - else - buffers[buffers.length-1] = buffers[buffers.length-1].slice(0, endOffset[1]) - - if (startOffset[1] != 0) - buffers[0] = buffers[0].slice(startOffset[1]) - - return new BufferList(buffers) -} - -BufferList.prototype.toString = function toString (encoding, start, end) { - return this.slice(start, end).toString(encoding) -} - -BufferList.prototype.consume = function consume (bytes) { - while (this._bufs.length) { - if (bytes >= this._bufs[0].length) { - bytes -= this._bufs[0].length - this.length -= this._bufs[0].length - this._bufs.shift() - } else { - this._bufs[0] = this._bufs[0].slice(bytes) - this.length -= bytes - break - } - } - return this -} - - -BufferList.prototype.duplicate = function duplicate () { - var i = 0 - , copy = new BufferList() - - for (; i < this._bufs.length; i++) - copy.append(this._bufs[i]) - - return copy -} - - -BufferList.prototype.destroy = function destroy () { - this._bufs.length = 0 - this.length = 0 - this.push(null) -} - - -;(function () { - var methods = { - 'readDoubleBE' : 8 - , 'readDoubleLE' : 8 - , 'readFloatBE' : 4 - , 'readFloatLE' : 4 - , 'readInt32BE' : 4 - , 'readInt32LE' : 4 - , 'readUInt32BE' : 4 - , 'readUInt32LE' : 4 - , 'readInt16BE' : 2 - , 'readInt16LE' : 2 - , 'readUInt16BE' : 2 - , 'readUInt16LE' : 2 - , 'readInt8' : 1 - , 'readUInt8' : 1 - } - - for (var m in methods) { - (function (m) { - BufferList.prototype[m] = function (offset) { - return this.slice(offset, offset + methods[m])[m](0) - } - }(m)) - } -}()) - - -module.exports = BufferList |