add linting (and some initial fixes)

9 files changed, 337 insertions, 0 deletions

diff --git a/node_modules/slide/LICENSE b/node_modules/slide/LICENSE
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index 000000000..05eeeb88c
--- /dev/null
+++ b/node_modules/slide/LICENSE
@@ -0,0 +1,15 @@
+The ISC License
+
+Copyright (c) Isaac Z. Schlueter
+
+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/node_modules/slide/README.md b/node_modules/slide/README.md
new file mode 100644
index 000000000..59ad738bc
--- /dev/null
+++ b/node_modules/slide/README.md
@@ -0,0 +1,143 @@
+# Controlling Flow: callbacks are easy
+
+## What's actually hard?
+
+- Doing a bunch of things in a specific order.
+- Knowing when stuff is done.
+- Handling failures.
+- Breaking up functionality into parts (avoid nested inline callbacks)
+
+
+## Common Mistakes
+
+- Abandoning convention and consistency.
+- Putting all callbacks inline.
+- Using libraries without grokking them.
+- Trying to make async code look sync.
+
+## Define Conventions
+
+- Two kinds of functions: *actors* take action, *callbacks* get results.
+- Essentially the continuation pattern. Resulting code *looks* similar
+  to fibers, but is *much* simpler to implement.
+- Node works this way in the lowlevel APIs already, and it's very flexible.
+
+## Callbacks
+
+- Simple responders
+- Must always be prepared to handle errors, that's why it's the first argument.
+- Often inline anonymous, but not always.
+- Can trap and call other callbacks with modified data, or pass errors upwards.
+
+## Actors
+
+- Last argument is a callback.
+- If any error occurs, and can't be handled, pass it to the callback and return.
+- Must not throw. Return value ignored.
+- return x ==> return cb(null, x)
+- throw er ==> return cb(er)
+
+```javascript
+// return true if a path is either
+// a symlink or a directory.
+function isLinkOrDir (path, cb) {
+  fs.lstat(path, function (er, s) {
+    if (er) return cb(er)
+    return cb(null, s.isDirectory() || s.isSymbolicLink())
+  })
+}
+```
+
+# asyncMap
+
+## Usecases
+
+- I have a list of 10 files, and need to read all of them, and then continue when they're all done.
+- I have a dozen URLs, and need to fetch them all, and then continue when they're all done.
+- I have 4 connected users, and need to send a message to all of them, and then continue when that's done.
+- I have a list of n things, and I need to dosomething with all of them, in parallel, and get the results once they're all complete.
+
+
+## Solution
+
+```javascript
+var asyncMap = require("slide").asyncMap
+function writeFiles (files, what, cb) {
+  asyncMap(files, function (f, cb) {
+    fs.writeFile(f, what, cb)
+  }, cb)
+}
+writeFiles([my, file, list], "foo", cb)
+```
+
+# chain
+
+## Usecases
+
+- I have to do a bunch of things, in order. Get db credentials out of a file,
+  read the data from the db, write that data to another file.
+- If anything fails, do not continue.
+- I still have to provide an array of functions, which is a lot of boilerplate,
+  and a pita if your functions take args like
+
+```javascript
+function (cb) {
+  blah(a, b, c, cb)
+}
+```
+
+- Results are discarded, which is a bit lame.
+- No way to branch.
+
+## Solution
+
+- reduces boilerplate by converting an array of [fn, args] to an actor
+  that takes no arguments (except cb)
+- A bit like Function#bind, but tailored for our use-case.
+- bindActor(obj, "method", a, b, c)
+- bindActor(fn, a, b, c)
+- bindActor(obj, fn, a, b, c)
+- branching, skipping over falsey arguments
+
+```javascript
+chain([
+  doThing && [thing, a, b, c]
+, isFoo && [doFoo, "foo"]
+, subChain && [chain, [one, two]]
+], cb)
+```
+
+- tracking results: results are stored in an optional array passed as argument,
+  last result is always in results[results.length - 1].
+- treat chain.first and chain.last as placeholders for the first/last
+  result up until that point.
+
+
+## Non-trivial example
+
+- Read number files in a directory
+- Add the results together
+- Ping a web service with the result
+- Write the response to a file
+- Delete the number files
+
+```javascript
+var chain = require("slide").chain
+function myProgram (cb) {
+  var res = [], last = chain.last, first = chain.first
+  chain([
+    [fs, "readdir", "the-directory"]
+  , [readFiles, "the-directory", last]
+  , [sum, last]
+  , [ping, "POST", "example.com", 80, "/foo", last]
+  , [fs, "writeFile", "result.txt", last]
+  , [rmFiles, "./the-directory", first]
+  ], res, cb)
+}
+```
+
+# Conclusion: Convention Profits
+
+- Consistent API from top to bottom.
+- Sneak in at any point to inject functionality. Testable, reusable, ...
+- When ruby and python users whine, you can smile condescendingly.
diff --git a/node_modules/slide/index.js b/node_modules/slide/index.js
new file mode 100644
index 000000000..0a9277f6e
--- /dev/null
+++ b/node_modules/slide/index.js
@@ -0,0 +1 @@
+module.exports=require("./lib/slide")
diff --git a/node_modules/slide/lib/async-map-ordered.js b/node_modules/slide/lib/async-map-ordered.js
new file mode 100644
index 000000000..5cca79a82
--- /dev/null
+++ b/node_modules/slide/lib/async-map-ordered.js
@@ -0,0 +1,65 @@
+
+throw new Error("TODO: Not yet implemented.")
+
+/*
+usage:
+
+Like asyncMap, but only can take a single cb, and guarantees
+the order of the results.
+*/
+
+module.exports = asyncMapOrdered
+
+function asyncMapOrdered (list, fn, cb_) {
+  if (typeof cb_ !== "function") throw new Error(
+    "No callback provided to asyncMapOrdered")
+
+  if (typeof fn !== "function") throw new Error(
+    "No map function provided to asyncMapOrdered")
+
+  if (list === undefined || list === null) return cb_(null, [])
+  if (!Array.isArray(list)) list = [list]
+  if (!list.length) return cb_(null, [])
+
+  var errState = null
+    , l = list.length
+    , a = l
+    , res = []
+    , resCount = 0
+    , maxArgLen = 0
+
+  function cb (index) { return function () {
+    if (errState) return
+    var er = arguments[0]
+    var argLen = arguments.length
+    maxArgLen = Math.max(maxArgLen, argLen)
+    res[index] = argLen === 1 ? [er] : Array.apply(null, arguments)
+
+    // see if any new things have been added.
+    if (list.length > l) {
+      var newList = list.slice(l)
+      a += (list.length - l)
+      var oldLen = l
+      l = list.length
+      process.nextTick(function () {
+        newList.forEach(function (ar, i) { fn(ar, cb(i + oldLen)) })
+      })
+    }
+
+    if (er || --a === 0) {
+      errState = er
+      cb_.apply(null, [errState].concat(flip(res, resCount, maxArgLen)))
+    }
+  }}
+  // expect the supplied cb function to be called
+  // "n" times for each thing in the array.
+  list.forEach(function (ar) {
+    steps.forEach(function (fn, i) { fn(ar, cb(i)) })
+  })
+}
+
+function flip (res, resCount, argLen) {
+  var flat = []
+  // res = [[er, x, y], [er, x1, y1], [er, x2, y2, z2]]
+  // return [[x, x1, x2], [y, y1, y2], [undefined, undefined, z2]]
+  
diff --git a/node_modules/slide/lib/async-map.js b/node_modules/slide/lib/async-map.js
new file mode 100644
index 000000000..ccf345f3c
--- /dev/null
+++ b/node_modules/slide/lib/async-map.js
@@ -0,0 +1,54 @@
+
+/*
+usage:
+
+// do something to a list of things
+asyncMap(myListOfStuff, function (thing, cb) { doSomething(thing.foo, cb) }, cb)
+// do more than one thing to each item
+asyncMap(list, fooFn, barFn, cb)
+
+*/
+
+module.exports = asyncMap
+
+function asyncMap () {
+  var steps = Array.prototype.slice.call(arguments)
+    , list = steps.shift() || []
+    , cb_ = steps.pop()
+  if (typeof cb_ !== "function") throw new Error(
+    "No callback provided to asyncMap")
+  if (!list) return cb_(null, [])
+  if (!Array.isArray(list)) list = [list]
+  var n = steps.length
+    , data = [] // 2d array
+    , errState = null
+    , l = list.length
+    , a = l * n
+  if (!a) return cb_(null, [])
+  function cb (er) {
+    if (er && !errState) errState = er
+
+    var argLen = arguments.length
+    for (var i = 1; i < argLen; i ++) if (arguments[i] !== undefined) {
+      data[i - 1] = (data[i - 1] || []).concat(arguments[i])
+    }
+    // see if any new things have been added.
+    if (list.length > l) {
+      var newList = list.slice(l)
+      a += (list.length - l) * n
+      l = list.length
+      process.nextTick(function () {
+        newList.forEach(function (ar) {
+          steps.forEach(function (fn) { fn(ar, cb) })
+        })
+      })
+    }
+
+    if (--a === 0) cb_.apply(null, [errState].concat(data))
+  }
+  // expect the supplied cb function to be called
+  // "n" times for each thing in the array.
+  list.forEach(function (ar) {
+    steps.forEach(function (fn) { fn(ar, cb) })
+  })
+}
diff --git a/node_modules/slide/lib/bind-actor.js b/node_modules/slide/lib/bind-actor.js
new file mode 100644
index 000000000..6a3707274
--- /dev/null
+++ b/node_modules/slide/lib/bind-actor.js
@@ -0,0 +1,16 @@
+module.exports = bindActor
+function bindActor () {
+  var args = 
+        Array.prototype.slice.call
+        (arguments) // jswtf.
+    , obj = null
+    , fn
+  if (typeof args[0] === "object") {
+    obj = args.shift()
+    fn = args.shift()
+    if (typeof fn === "string")
+      fn = obj[ fn ]
+  } else fn = args.shift()
+  return function (cb) {
+    fn.apply(obj, args.concat(cb)) }
+}
diff --git a/node_modules/slide/lib/chain.js b/node_modules/slide/lib/chain.js
new file mode 100644
index 000000000..17b371149
--- /dev/null
+++ b/node_modules/slide/lib/chain.js
@@ -0,0 +1,20 @@
+module.exports = chain
+var bindActor = require("./bind-actor.js")
+chain.first = {} ; chain.last = {}
+function chain (things, cb) {
+  var res = []
+  ;(function LOOP (i, len) {
+    if (i >= len) return cb(null,res)
+    if (Array.isArray(things[i]))
+      things[i] = bindActor.apply(null,
+        things[i].map(function(i){
+          return (i===chain.first) ? res[0]
+           : (i===chain.last)
+             ? res[res.length - 1] : i }))
+    if (!things[i]) return LOOP(i + 1, len)
+    things[i](function (er, data) {
+      if (er) return cb(er, res)
+      if (data !== undefined) res = res.concat(data)
+      LOOP(i + 1, len)
+    })
+  })(0, things.length) }
diff --git a/node_modules/slide/lib/slide.js b/node_modules/slide/lib/slide.js
new file mode 100644
index 000000000..6e9ec2327
--- /dev/null
+++ b/node_modules/slide/lib/slide.js
@@ -0,0 +1,3 @@
+exports.asyncMap = require("./async-map")
+exports.bindActor = require("./bind-actor")
+exports.chain = require("./chain")
diff --git a/node_modules/slide/package.json b/node_modules/slide/package.json
new file mode 100644
index 000000000..779918479
--- /dev/null
+++ b/node_modules/slide/package.json
@@ -0,0 +1,20 @@
+{
+  "name": "slide",
+  "version": "1.1.6",
+  "author": "Isaac Z. Schlueter <i@izs.me> (http://blog.izs.me/)",
+  "contributors": [
+    "S. Sriram <ssriram@gmail.com> (http://www.565labs.com)"
+  ],
+  "description": "A flow control lib small enough to fit on in a slide presentation. Derived live at Oak.JS",
+  "main": "./lib/slide.js",
+  "dependencies": {},
+  "devDependencies": {},
+  "engines": {
+    "node": "*"
+  },
+  "repository": {
+    "type": "git",
+    "url": "git://github.com/isaacs/slide-flow-control.git"
+  },
+  "license": "ISC"
+}