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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")
, getType = require("./get-type.js")
, inherits = require("inherits")
, collect = require("./collect.js")
, fs = require("fs")
inherits(ProxyWriter, Writer)
function ProxyWriter (props) {
var me = this
if (!(me instanceof ProxyWriter)) throw new Error(
"ProxyWriter must be called as constructor.")
me.props = props
me._needDrain = false
Writer.call(me, props)
}
ProxyWriter.prototype._stat = function () {
var me = this
, props = me.props
// stat the thing to see what the proxy should be.
, 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 = me.type = type
me._old = current
me._addProxy(Writer(props, current))
})
}
ProxyWriter.prototype._addProxy = function (proxy) {
// console.error("~~ set proxy", this.path)
var me = this
if (me._proxy) {
return me.error("proxy already set")
}
me._proxy = proxy
; [ "ready"
, "error"
, "close"
, "pipe"
, "drain"
, "warn"
].forEach(function (ev) {
proxy.on(ev, me.emit.bind(me, ev))
})
me.emit("proxy", proxy)
var calls = me._buffer
calls.forEach(function (c) {
// console.error("~~ ~~ proxy buffered call", c[0], c[1])
proxy[c[0]].apply(proxy, c[1])
})
me._buffer.length = 0
if (me._needsDrain) me.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)
}
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