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node_modules/orchestrator/.npmignore generated vendored
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.DS_Store
*.log
node_modules
build
*.node
components
*.orig
.idea
test
.travis.yml

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node_modules/orchestrator/LICENSE generated vendored
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Copyright (c) 2013 [Richardson & Sons, LLC](http://richardsonandsons.com/)
Permission is hereby granted, free of charge, to any person obtaining
a copy of this software and associated documentation files (the
"Software"), to deal in the Software without restriction, including
without limitation the rights to use, copy, modify, merge, publish,
distribute, sublicense, and/or sell copies of the Software, and to
permit persons to whom the Software is furnished to do so, subject to
the following conditions:
The above copyright notice and this permission notice shall be
included in all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

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[![Build Status](https://secure.travis-ci.org/robrich/orchestrator.svg?branch=master)](https://travis-ci.org/robrich/orchestrator)
[![Dependency Status](https://david-dm.org/robrich/orchestrator.svg)](https://david-dm.org/robrich/orchestrator)
Orchestrator
============
A module for sequencing and executing tasks and dependencies in maximum concurrency
Usage
-----
### 1. Get a reference:
```javascript
var Orchestrator = require('orchestrator');
var orchestrator = new Orchestrator();
```
### 2. Load it up with stuff to do:
```javascript
orchestrator.add('thing1', function(){
// do stuff
});
orchestrator.add('thing2', function(){
// do stuff
});
```
### 3. Run the tasks:
```javascript
orchestrator.start('thing1', 'thing2', function (err) {
// all done
});
```
API
---
### orchestrator.add(name[, deps][, function]);
Define a task
```javascript
orchestrator.add('thing1', function(){
// do stuff
});
```
#### name
Type: `String`
The name of the task.
#### deps
Type: `Array`
An array of task names to be executed and completed before your task will run.
```javascript
orchestrator.add('mytask', ['array', 'of', 'task', 'names'], function() {
// Do stuff
});
```
**Note:** Are your tasks running before the dependencies are complete? Make sure your dependency tasks
are correctly using the async run hints: take in a callback or return a promise or event stream.
#### fn
Type: `function`
The function that performs the task's operations. For asynchronous tasks, you need to provide a hint when the task is complete:
- Take in a callback
- Return a stream or a promise
#### examples:
**Accept a callback:**
```javascript
orchestrator.add('thing2', function(callback){
// do stuff
callback(err);
});
```
**Return a promise:**
```javascript
var Q = require('q');
orchestrator.add('thing3', function(){
var deferred = Q.defer();
// do async stuff
setTimeout(function () {
deferred.resolve();
}, 1);
return deferred.promise;
});
```
**Return a stream:** (task is marked complete when stream ends)
```javascript
var map = require('map-stream');
orchestrator.add('thing4', function(){
var stream = map(function (args, cb) {
cb(null, args);
});
// do stream stuff
return stream;
});
```
**Note:** By default, tasks run with maximum concurrency -- e.g. it launches all the tasks at once and waits for nothing.
If you want to create a series where tasks run in a particular order, you need to do two things:
- give it a hint to tell it when the task is done,
- and give it a hint that a task depends on completion of another.
For these examples, let's presume you have two tasks, "one" and "two" that you specifically want to run in this order:
1. In task "one" you add a hint to tell it when the task is done. Either take in a callback and call it when you're
done or return a promise or stream that the engine should wait to resolve or end respectively.
2. In task "two" you add a hint telling the engine that it depends on completion of the first task.
So this example would look like this:
```javascript
var Orchestrator = require('orchestrator');
var orchestrator = new Orchestrator();
// takes in a callback so the engine knows when it'll be done
orchestrator.add('one', function (cb) {
// do stuff -- async or otherwise
cb(err); // if err is not null or undefined, the orchestration will stop, and note that it failed
});
// identifies a dependent task must be complete before this one begins
orchestrator.add('two', ['one'], function () {
// task 'one' is done now
});
orchestrator.start('one', 'two');
```
### orchestrator.hasTask(name);
Have you defined a task with this name?
#### name
Type: `String`
The task name to query
### orchestrator.start(tasks...[, cb]);
Start running the tasks
#### tasks
Type: `String` or `Array` of `String`s
Tasks to be executed. You may pass any number of tasks as individual arguments.
#### cb
Type: `function`: `function (err) {`
Callback to call after run completed.
Passes single argument: `err`: did the orchestration succeed?
**Note:** Tasks run concurrently and therefore may not complete in order.
**Note:** Orchestrator uses `sequencify` to resolve dependencies before running, and therefore may not start in order.
Listen to orchestration events to watch task running.
```javascript
orchestrator.start('thing1', 'thing2', 'thing3', 'thing4', function (err) {
// all done
});
```
```javascript
orchestrator.start(['thing1','thing2'], ['thing3','thing4']);
```
**FRAGILE:** Orchestrator catches exceptions on sync runs to pass to your callback
but doesn't hook to process.uncaughtException so it can't pass those exceptions
to your callback
**FRAGILE:** Orchestrator will ensure each task and each dependency is run once during an orchestration run
even if you specify it to run more than once. (e.g. `orchestrator.start('thing1', 'thing1')`
will only run 'thing1' once.) If you need it to run a task multiple times, wait for
the orchestration to end (start's callback) then call start again.
(e.g. `orchestrator.start('thing1', function () {orchestrator.start('thing1');})`.)
Alternatively create a second orchestrator instance.
### orchestrator.stop()
Stop an orchestration run currently in process
**Note:** It will call the `start()` callback with an `err` noting the orchestration was aborted
### orchestrator.on(event, cb);
Listen to orchestrator internals
#### event
Type: `String`
Event name to listen to:
- start: from start() method, shows you the task sequence
- stop: from stop() method, the queue finished successfully
- err: from stop() method, the queue was aborted due to a task error
- task_start: from _runTask() method, task was started
- task_stop: from _runTask() method, task completed successfully
- task_err: from _runTask() method, task errored
- task_not_found: from start() method, you're trying to start a task that doesn't exist
- task_recursion: from start() method, there are recursive dependencies in your task list
#### cb
Type: `function`: `function (e) {`
Passes single argument: `e`: event details
```javascript
orchestrator.on('task_start', function (e) {
// e.message is the log message
// e.task is the task name if the message applies to a task else `undefined`
// e.err is the error if event is 'err' else `undefined`
});
// for task_end and task_err:
orchestrator.on('task_stop', function (e) {
// e is the same object from task_start
// e.message is updated to show how the task ended
// e.duration is the task run duration (in seconds)
});
```
**Note:** fires either *stop or *err but not both.
### orchestrator.onAll(cb);
Listen to all orchestrator events from one callback
#### cb
Type: `function`: `function (e) {`
Passes single argument: `e`: event details
```javascript
orchestrator.onAll(function (e) {
// e is the original event args
// e.src is event name
});
```
LICENSE
-------
(MIT License)
Copyright (c) 2013-2015 [Richardson & Sons, LLC](http://richardsonandsons.com/)
Permission is hereby granted, free of charge, to any person obtaining
a copy of this software and associated documentation files (the
"Software"), to deal in the Software without restriction, including
without limitation the rights to use, copy, modify, merge, publish,
distribute, sublicense, and/or sell copies of the Software, and to
permit persons to whom the Software is furnished to do so, subject to
the following conditions:
The above copyright notice and this permission notice shall be
included in all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

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/*jshint node:true */
"use strict";
var util = require('util');
var events = require('events');
var EventEmitter = events.EventEmitter;
var runTask = require('./lib/runTask');
var Orchestrator = function () {
EventEmitter.call(this);
this.doneCallback = undefined; // call this when all tasks in the queue are done
this.seq = []; // the order to run the tasks
this.tasks = {}; // task objects: name, dep (list of names of dependencies), fn (the task to run)
this.isRunning = false; // is the orchestrator running tasks? .start() to start, .stop() to stop
};
util.inherits(Orchestrator, EventEmitter);
Orchestrator.prototype.reset = function () {
if (this.isRunning) {
this.stop(null);
}
this.tasks = {};
this.seq = [];
this.isRunning = false;
this.doneCallback = undefined;
return this;
};
Orchestrator.prototype.add = function (name, dep, fn) {
if (!fn && typeof dep === 'function') {
fn = dep;
dep = undefined;
}
dep = dep || [];
fn = fn || function () {}; // no-op
if (!name) {
throw new Error('Task requires a name');
}
// validate name is a string, dep is an array of strings, and fn is a function
if (typeof name !== 'string') {
throw new Error('Task requires a name that is a string');
}
if (typeof fn !== 'function') {
throw new Error('Task '+name+' requires a function that is a function');
}
if (!Array.isArray(dep)) {
throw new Error('Task '+name+' can\'t support dependencies that is not an array of strings');
}
dep.forEach(function (item) {
if (typeof item !== 'string') {
throw new Error('Task '+name+' dependency '+item+' is not a string');
}
});
this.tasks[name] = {
fn: fn,
dep: dep,
name: name
};
return this;
};
Orchestrator.prototype.task = function (name, dep, fn) {
if (dep || fn) {
// alias for add, return nothing rather than this
this.add(name, dep, fn);
} else {
return this.tasks[name];
}
};
Orchestrator.prototype.hasTask = function (name) {
return !!this.tasks[name];
};
// tasks and optionally a callback
Orchestrator.prototype.start = function() {
var args, arg, names = [], lastTask, i, seq = [];
args = Array.prototype.slice.call(arguments, 0);
if (args.length) {
lastTask = args[args.length-1];
if (typeof lastTask === 'function') {
this.doneCallback = lastTask;
args.pop();
}
for (i = 0; i < args.length; i++) {
arg = args[i];
if (typeof arg === 'string') {
names.push(arg);
} else if (Array.isArray(arg)) {
names = names.concat(arg); // FRAGILE: ASSUME: it's an array of strings
} else {
throw new Error('pass strings or arrays of strings');
}
}
}
if (this.isRunning) {
// reset specified tasks (and dependencies) as not run
this._resetSpecificTasks(names);
} else {
// reset all tasks as not run
this._resetAllTasks();
}
if (this.isRunning) {
// if you call start() again while a previous run is still in play
// prepend the new tasks to the existing task queue
names = names.concat(this.seq);
}
if (names.length < 1) {
// run all tasks
for (i in this.tasks) {
if (this.tasks.hasOwnProperty(i)) {
names.push(this.tasks[i].name);
}
}
}
seq = [];
try {
this.sequence(this.tasks, names, seq, []);
} catch (err) {
// Is this a known error?
if (err) {
if (err.missingTask) {
this.emit('task_not_found', {message: err.message, task:err.missingTask, err: err});
}
if (err.recursiveTasks) {
this.emit('task_recursion', {message: err.message, recursiveTasks:err.recursiveTasks, err: err});
}
}
this.stop(err);
return this;
}
this.seq = seq;
this.emit('start', {message:'seq: '+this.seq.join(',')});
if (!this.isRunning) {
this.isRunning = true;
}
this._runStep();
return this;
};
Orchestrator.prototype.stop = function (err, successfulFinish) {
this.isRunning = false;
if (err) {
this.emit('err', {message:'orchestration failed', err:err});
} else if (successfulFinish) {
this.emit('stop', {message:'orchestration succeeded'});
} else {
// ASSUME
err = 'orchestration aborted';
this.emit('err', {message:'orchestration aborted', err: err});
}
if (this.doneCallback) {
// Avoid calling it multiple times
this.doneCallback(err);
} else if (err && !this.listeners('err').length) {
// No one is listening for the error so speak louder
throw err;
}
};
Orchestrator.prototype.sequence = require('sequencify');
Orchestrator.prototype.allDone = function () {
var i, task, allDone = true; // nothing disputed it yet
for (i = 0; i < this.seq.length; i++) {
task = this.tasks[this.seq[i]];
if (!task.done) {
allDone = false;
break;
}
}
return allDone;
};
Orchestrator.prototype._resetTask = function(task) {
if (task) {
if (task.done) {
task.done = false;
}
delete task.start;
delete task.stop;
delete task.duration;
delete task.hrDuration;
delete task.args;
}
};
Orchestrator.prototype._resetAllTasks = function() {
var task;
for (task in this.tasks) {
if (this.tasks.hasOwnProperty(task)) {
this._resetTask(this.tasks[task]);
}
}
};
Orchestrator.prototype._resetSpecificTasks = function (names) {
var i, name, t;
if (names && names.length) {
for (i = 0; i < names.length; i++) {
name = names[i];
t = this.tasks[name];
if (t) {
this._resetTask(t);
if (t.dep && t.dep.length) {
this._resetSpecificTasks(t.dep); // recurse
}
//} else {
// FRAGILE: ignore that the task doesn't exist
}
}
}
};
Orchestrator.prototype._runStep = function () {
var i, task;
if (!this.isRunning) {
return; // user aborted, ASSUME: stop called previously
}
for (i = 0; i < this.seq.length; i++) {
task = this.tasks[this.seq[i]];
if (!task.done && !task.running && this._readyToRunTask(task)) {
this._runTask(task);
}
if (!this.isRunning) {
return; // task failed or user aborted, ASSUME: stop called previously
}
}
if (this.allDone()) {
this.stop(null, true);
}
};
Orchestrator.prototype._readyToRunTask = function (task) {
var ready = true, // no one disproved it yet
i, name, t;
if (task.dep.length) {
for (i = 0; i < task.dep.length; i++) {
name = task.dep[i];
t = this.tasks[name];
if (!t) {
// FRAGILE: this should never happen
this.stop("can't run "+task.name+" because it depends on "+name+" which doesn't exist");
ready = false;
break;
}
if (!t.done) {
ready = false;
break;
}
}
}
return ready;
};
Orchestrator.prototype._stopTask = function (task, meta) {
task.duration = meta.duration;
task.hrDuration = meta.hrDuration;
task.running = false;
task.done = true;
};
Orchestrator.prototype._emitTaskDone = function (task, message, err) {
if (!task.args) {
task.args = {task:task.name};
}
task.args.duration = task.duration;
task.args.hrDuration = task.hrDuration;
task.args.message = task.name+' '+message;
var evt = 'stop';
if (err) {
task.args.err = err;
evt = 'err';
}
// 'task_stop' or 'task_err'
this.emit('task_'+evt, task.args);
};
Orchestrator.prototype._runTask = function (task) {
var that = this;
task.args = {task:task.name, message:task.name+' started'};
this.emit('task_start', task.args);
task.running = true;
runTask(task.fn.bind(this), function (err, meta) {
that._stopTask.call(that, task, meta);
that._emitTaskDone.call(that, task, meta.runMethod, err);
if (err) {
return that.stop.call(that, err);
}
that._runStep.call(that);
});
};
// FRAGILE: ASSUME: this list is an exhaustive list of events emitted
var events = ['start','stop','err','task_start','task_stop','task_err','task_not_found','task_recursion'];
var listenToEvent = function (target, event, callback) {
target.on(event, function (e) {
e.src = event;
callback(e);
});
};
Orchestrator.prototype.onAll = function (callback) {
var i;
if (typeof callback !== 'function') {
throw new Error('No callback specified');
}
for (i = 0; i < events.length; i++) {
listenToEvent(this, events[i], callback);
}
};
module.exports = Orchestrator;

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/*jshint node:true */
"use strict";
var eos = require('end-of-stream');
var consume = require('stream-consume');
module.exports = function (task, done) {
var that = this, finish, cb, isDone = false, start, r;
finish = function (err, runMethod) {
var hrDuration = process.hrtime(start);
if (isDone && !err) {
err = new Error('task completion callback called too many times');
}
isDone = true;
var duration = hrDuration[0] + (hrDuration[1] / 1e9); // seconds
done.call(that, err, {
duration: duration, // seconds
hrDuration: hrDuration, // [seconds,nanoseconds]
runMethod: runMethod
});
};
cb = function (err) {
finish(err, 'callback');
};
try {
start = process.hrtime();
r = task(cb);
} catch (err) {
return finish(err, 'catch');
}
if (r && typeof r.then === 'function') {
// wait for promise to resolve
// FRAGILE: ASSUME: Promises/A+, see http://promises-aplus.github.io/promises-spec/
r.then(function () {
finish(null, 'promise');
}, function(err) {
finish(err, 'promise');
});
} else if (r && typeof r.pipe === 'function') {
// wait for stream to end
eos(r, { error: true, readable: r.readable, writable: r.writable && !r.readable }, function(err){
finish(err, 'stream');
});
// Ensure that the stream completes
consume(r);
} else if (task.length === 0) {
// synchronous, function took in args.length parameters, and the callback was extra
finish(null, 'sync');
//} else {
// FRAGILE: ASSUME: callback
}
};

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node_modules

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# end-of-stream
A node module that calls a callback when a readable/writable/duplex stream has completed or failed.
npm install end-of-stream
## Usage
Simply pass a stream and a callback to the `eos`.
Both legacy streams and streams2 are supported.
``` js
var eos = require('end-of-stream');
eos(readableStream, function(err) {
if (err) return console.log('stream had an error or closed early');
console.log('stream has ended');
});
eos(writableStream, function(err) {
if (err) return console.log('stream had an error or closed early');
console.log('stream has finished');
});
eos(duplexStream, function(err) {
if (err) return console.log('stream had an error or closed early');
console.log('stream has ended and finished');
});
eos(duplexStream, {readable:false}, function(err) {
if (err) return console.log('stream had an error or closed early');
console.log('stream has ended but might still be writable');
});
eos(duplexStream, {writable:false}, function(err) {
if (err) return console.log('stream had an error or closed early');
console.log('stream has ended but might still be readable');
});
eos(readableStream, {error:false}, function(err) {
// do not treat emit('error', err) as a end-of-stream
});
```
## License
MIT

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var once = require('once');
var noop = function() {};
var isRequest = function(stream) {
return stream.setHeader && typeof stream.abort === 'function';
};
var eos = function(stream, opts, callback) {
if (typeof opts === 'function') return eos(stream, null, opts);
if (!opts) opts = {};
callback = once(callback || noop);
var ws = stream._writableState;
var rs = stream._readableState;
var readable = opts.readable || (opts.readable !== false && stream.readable);
var writable = opts.writable || (opts.writable !== false && stream.writable);
var onlegacyfinish = function() {
if (!stream.writable) onfinish();
};
var onfinish = function() {
writable = false;
if (!readable) callback();
};
var onend = function() {
readable = false;
if (!writable) callback();
};
var onclose = function() {
if (readable && !(rs && rs.ended)) return callback(new Error('premature close'));
if (writable && !(ws && ws.ended)) return callback(new Error('premature close'));
};
var onrequest = function() {
stream.req.on('finish', onfinish);
};
if (isRequest(stream)) {
stream.on('complete', onfinish);
stream.on('abort', onclose);
if (stream.req) onrequest();
else stream.on('request', onrequest);
} else if (writable && !ws) { // legacy streams
stream.on('end', onlegacyfinish);
stream.on('close', onlegacyfinish);
}
stream.on('end', onend);
stream.on('finish', onfinish);
if (opts.error !== false) stream.on('error', callback);
stream.on('close', onclose);
return stream;
};
module.exports = eos;

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{
"_from": "end-of-stream@~0.1.5",
"_id": "end-of-stream@0.1.5",
"_inBundle": false,
"_integrity": "sha1-jhdyBsPICDfYVjLouTWd/osvbq8=",
"_location": "/orchestrator/end-of-stream",
"_phantomChildren": {},
"_requested": {
"type": "range",
"registry": true,
"raw": "end-of-stream@~0.1.5",
"name": "end-of-stream",
"escapedName": "end-of-stream",
"rawSpec": "~0.1.5",
"saveSpec": null,
"fetchSpec": "~0.1.5"
},
"_requiredBy": [
"/orchestrator"
],
"_resolved": "https://registry.npmjs.org/end-of-stream/-/end-of-stream-0.1.5.tgz",
"_shasum": "8e177206c3c80837d85632e8b9359dfe8b2f6eaf",
"_spec": "end-of-stream@~0.1.5",
"_where": "/Applications/XAMPP/xamppfiles/htdocs/wordpress/t-latehome/wp-content/plugins/opal-estate-pro/node_modules/orchestrator",
"author": {
"name": "Mathias Buus",
"email": "mathiasbuus@gmail.com"
},
"bugs": {
"url": "https://github.com/mafintosh/end-of-stream/issues"
},
"bundleDependencies": false,
"dependencies": {
"once": "~1.3.0"
},
"deprecated": false,
"description": "Call a callback when a readable/writable/duplex stream has completed or failed.",
"homepage": "https://github.com/mafintosh/end-of-stream",
"keywords": [
"stream",
"streams",
"callback",
"finish",
"close",
"end",
"wait"
],
"license": "MIT",
"main": "index.js",
"name": "end-of-stream",
"repository": {
"type": "git",
"url": "git://github.com/mafintosh/end-of-stream.git"
},
"scripts": {
"test": "node test.js"
},
"version": "0.1.5"
}

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var assert = require('assert');
var eos = require('./index');
var expected = 6;
var fs = require('fs');
var net = require('net');
var ws = fs.createWriteStream('/dev/null');
eos(ws, function(err) {
expected--;
assert(!!err);
if (!expected) process.exit(0);
});
ws.close();
var rs = fs.createReadStream('/dev/random');
eos(rs, function(err) {
expected--;
assert(!!err);
if (!expected) process.exit(0);
});
rs.close();
var rs = fs.createReadStream(__filename);
eos(rs, function(err) {
expected--;
assert(!err);
if (!expected) process.exit(0);
});
rs.pipe(fs.createWriteStream('/dev/null'));
var socket = net.connect(50000);
eos(socket, function(err) {
expected--;
assert(!!err);
if (!expected) process.exit(0);
});
var server = net.createServer(function(socket) {
eos(socket, function() {
expected--;
if (!expected) process.exit(0);
});
socket.destroy();
}).listen(30000, function() {
var socket = net.connect(30000);
eos(socket, function() {
expected--;
if (!expected) process.exit(0);
});
});
setTimeout(function() {
assert(expected === 0);
process.exit(0);
}, 1000);

View File

@@ -1,15 +0,0 @@
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.

View File

@@ -1,51 +0,0 @@
# once
Only call a function once.
## usage
```javascript
var once = require('once')
function load (file, cb) {
cb = once(cb)
loader.load('file')
loader.once('load', cb)
loader.once('error', cb)
}
```
Or add to the Function.prototype in a responsible way:
```javascript
// only has to be done once
require('once').proto()
function load (file, cb) {
cb = cb.once()
loader.load('file')
loader.once('load', cb)
loader.once('error', cb)
}
```
Ironically, the prototype feature makes this module twice as
complicated as necessary.
To check whether you function has been called, use `fn.called`. Once the
function is called for the first time the return value of the original
function is saved in `fn.value` and subsequent calls will continue to
return this value.
```javascript
var once = require('once')
function load (cb) {
cb = once(cb)
var stream = createStream()
stream.once('data', cb)
stream.once('end', function () {
if (!cb.called) cb(new Error('not found'))
})
}
```

View File

@@ -1,21 +0,0 @@
var wrappy = require('wrappy')
module.exports = wrappy(once)
once.proto = once(function () {
Object.defineProperty(Function.prototype, 'once', {
value: function () {
return once(this)
},
configurable: true
})
})
function once (fn) {
var f = function () {
if (f.called) return f.value
f.called = true
return f.value = fn.apply(this, arguments)
}
f.called = false
return f
}

View File

@@ -1,66 +0,0 @@
{
"_from": "once@~1.3.0",
"_id": "once@1.3.3",
"_inBundle": false,
"_integrity": "sha1-suJhVXzkwxTsgwTz+oJmPkKXyiA=",
"_location": "/orchestrator/once",
"_phantomChildren": {},
"_requested": {
"type": "range",
"registry": true,
"raw": "once@~1.3.0",
"name": "once",
"escapedName": "once",
"rawSpec": "~1.3.0",
"saveSpec": null,
"fetchSpec": "~1.3.0"
},
"_requiredBy": [
"/orchestrator/end-of-stream"
],
"_resolved": "https://registry.npmjs.org/once/-/once-1.3.3.tgz",
"_shasum": "b2e261557ce4c314ec8304f3fa82663e4297ca20",
"_spec": "once@~1.3.0",
"_where": "/Applications/XAMPP/xamppfiles/htdocs/wordpress/t-latehome/wp-content/plugins/opal-estate-pro/node_modules/orchestrator/node_modules/end-of-stream",
"author": {
"name": "Isaac Z. Schlueter",
"email": "i@izs.me",
"url": "http://blog.izs.me/"
},
"bugs": {
"url": "https://github.com/isaacs/once/issues"
},
"bundleDependencies": false,
"dependencies": {
"wrappy": "1"
},
"deprecated": false,
"description": "Run a function exactly one time",
"devDependencies": {
"tap": "^1.2.0"
},
"directories": {
"test": "test"
},
"files": [
"once.js"
],
"homepage": "https://github.com/isaacs/once#readme",
"keywords": [
"once",
"function",
"one",
"single"
],
"license": "ISC",
"main": "once.js",
"name": "once",
"repository": {
"type": "git",
"url": "git://github.com/isaacs/once.git"
},
"scripts": {
"test": "tap test/*.js"
},
"version": "1.3.3"
}

View File

@@ -1,71 +0,0 @@
{
"_from": "orchestrator@^0.3.0",
"_id": "orchestrator@0.3.8",
"_inBundle": false,
"_integrity": "sha1-FOfp4nZPcxX7rBhOUGx6pt+UrX4=",
"_location": "/orchestrator",
"_phantomChildren": {
"wrappy": "1.0.2"
},
"_requested": {
"type": "range",
"registry": true,
"raw": "orchestrator@^0.3.0",
"name": "orchestrator",
"escapedName": "orchestrator",
"rawSpec": "^0.3.0",
"saveSpec": null,
"fetchSpec": "^0.3.0"
},
"_requiredBy": [
"/gulp"
],
"_resolved": "https://registry.npmjs.org/orchestrator/-/orchestrator-0.3.8.tgz",
"_shasum": "14e7e9e2764f7315fbac184e506c7aa6df94ad7e",
"_spec": "orchestrator@^0.3.0",
"_where": "/Applications/XAMPP/xamppfiles/htdocs/wordpress/t-latehome/wp-content/plugins/opal-estate-pro/node_modules/gulp",
"author": {
"name": "Rob Richardson",
"url": "http://robrich.org/"
},
"bugs": {
"url": "https://github.com/robrich/orchestrator/issues"
},
"bundleDependencies": false,
"dependencies": {
"end-of-stream": "~0.1.5",
"sequencify": "~0.0.7",
"stream-consume": "~0.1.0"
},
"deprecated": false,
"description": "A module for sequencing and executing tasks and dependencies in maximum concurrency",
"devDependencies": {
"event-stream": "~3.3.4",
"gulp-uglify": "^2.0.0",
"jshint": "^2.9.4",
"map-stream": "~0.0.6",
"merge-stream": "~1.0.0",
"mocha": "~3.1.2",
"q": "~1.4.1",
"should": "~11.1.1",
"vinyl-fs": "~2.4.4"
},
"homepage": "https://github.com/robrich/orchestrator",
"keywords": [
"async",
"task",
"parallel",
"compose"
],
"license": "MIT",
"main": "./index.js",
"name": "orchestrator",
"repository": {
"type": "git",
"url": "git://github.com/robrich/orchestrator.git"
},
"scripts": {
"test": "mocha"
},
"version": "0.3.8"
}