initial commit

node_modules/fstream/lib/proxy-writer.js

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+// A writer for when we don't know what kind of thing
+// the thing is.  That is, it's not explicitly set,
+// so we're going to make it whatever the thing already
+// is, or "File"
+//
+// Until then, collect all events.
+
+module.exports = ProxyWriter
+
+var Writer = require('./writer.js')
+var getType = require('./get-type.js')
+var inherits = require('inherits')
+var collect = require('./collect.js')
+var fs = require('fs')
+
+inherits(ProxyWriter, Writer)
+
+function ProxyWriter (props) {
+  var self = this
+  if (!(self instanceof ProxyWriter)) {
+    throw new Error('ProxyWriter must be called as constructor.')
+  }
+
+  self.props = props
+  self._needDrain = false
+
+  Writer.call(self, props)
+}
+
+ProxyWriter.prototype._stat = function () {
+  var self = this
+  var props = self.props
+  // stat the thing to see what the proxy should be.
+  var stat = props.follow ? 'stat' : 'lstat'
+
+  fs[stat](props.path, function (er, current) {
+    var type
+    if (er || !current) {
+      type = 'File'
+    } else {
+      type = getType(current)
+    }
+
+    props[type] = true
+    props.type = self.type = type
+
+    self._old = current
+    self._addProxy(Writer(props, current))
+  })
+}
+
+ProxyWriter.prototype._addProxy = function (proxy) {
+  // console.error("~~ set proxy", this.path)
+  var self = this
+  if (self._proxy) {
+    return self.error('proxy already set')
+  }
+
+  self._proxy = proxy
+  ;[
+    'ready',
+    'error',
+    'close',
+    'pipe',
+    'drain',
+    'warn'
+  ].forEach(function (ev) {
+    proxy.on(ev, self.emit.bind(self, ev))
+  })
+
+  self.emit('proxy', proxy)
+
+  var calls = self._buffer
+  calls.forEach(function (c) {
+    // console.error("~~ ~~ proxy buffered call", c[0], c[1])
+    proxy[c[0]].apply(proxy, c[1])
+  })
+  self._buffer.length = 0
+  if (self._needsDrain) self.emit('drain')
+}
+
+ProxyWriter.prototype.add = function (entry) {
+  // console.error("~~ proxy add")
+  collect(entry)
+
+  if (!this._proxy) {
+    this._buffer.push(['add', [entry]])
+    this._needDrain = true
+    return false
+  }
+  return this._proxy.add(entry)
+}
+
+ProxyWriter.prototype.write = function (c) {
+  // console.error('~~ proxy write')
+  if (!this._proxy) {
+    this._buffer.push(['write', [c]])
+    this._needDrain = true
+    return false
+  }
+  return this._proxy.write(c)
+}
+
+ProxyWriter.prototype.end = function (c) {
+  // console.error('~~ proxy end')
+  if (!this._proxy) {
+    this._buffer.push(['end', [c]])
+    return false
+  }
+  return this._proxy.end(c)
+}