From dae9c5c88efdc2efb3383e0c024bd340954b1f67 Mon Sep 17 00:00:00 2001
From: Jeff Dickey <216188+jdxcode@users.noreply.github.com>
Date: Tue, 14 Mar 2017 12:58:33 -0700
Subject: [PATCH 1/7] [wip] added duration example

---
 src/commands/duration.js | 18 ++++++++++++++++++
 src/index.js             |  6 ++++--
 src/mixins/duration.js   | 29 +++++++++++++++++++++++++++++
 3 files changed, 51 insertions(+), 2 deletions(-)
 create mode 100644 src/commands/duration.js
 create mode 100644 src/mixins/duration.js

diff --git a/src/commands/duration.js b/src/commands/duration.js
new file mode 100644
index 0000000..de9921b
--- /dev/null
+++ b/src/commands/duration.js
@@ -0,0 +1,18 @@
+// @ flow
+
+import Command from 'cli-engine-command'
+import DurationMixin from '../mixins/duration'
+
+export default class extends DurationMixin(Command) {
+  static topic = 'cli'
+  static command = 'duration'
+  static description = 'this is an example command showing duration parsing'
+
+  static flags = [
+    {name: 'foo'}
+  ]
+
+  run () {
+    this.log(`duration: ${this.duration}`)
+  }
+}
diff --git a/src/index.js b/src/index.js
index 143f283..f826392 100644
--- a/src/index.js
+++ b/src/index.js
@@ -4,5 +4,7 @@ export const topics = [
   {name: 'cli', description: 'example CLI engine topic'}
 ]
 
-import CLI from './commands/cli'
-export const commands = [CLI]
+export const commands = [
+  require('./commands/cli'),
+  require('./commands/duration')
+]
diff --git a/src/mixins/duration.js b/src/mixins/duration.js
new file mode 100644
index 0000000..02d0310
--- /dev/null
+++ b/src/mixins/duration.js
@@ -0,0 +1,29 @@
+// @flow
+
+import Command, {type Flag} from 'cli-engine-command' // eslint-disable-line
+
+const FLAG: Flag = {
+  name: 'duration',
+  description: 'a duration',
+  required: true,
+  hasValue: true
+}
+
+declare class App extends Command {
+  duration: Date
+}
+
+export default function <T: Class<Command>> (Base: T): $Shape<Class<App>> {
+  return class DurationMixin extends Base {
+    static get flags (): Flag[] { return this._flags.concat([FLAG]) }
+    static set flags (flags: Flag[]) { this._flags = flags }
+
+    get duration (): Date {
+      this.inspect(this.constructor.flags)
+
+      // this is a little gross but I think needed to cast it to a string
+      let duration = (((this.flags.duration): any): string)
+      return new Date(duration)
+    }
+  }
+}

From 5fa5361f031f1b3c3f0e7d335d91d73405ed3bbe Mon Sep 17 00:00:00 2001
From: Jeff Dickey <216188+jdxcode@users.noreply.github.com>
Date: Tue, 14 Mar 2017 13:20:36 -0700
Subject: [PATCH 2/7] remove debug statements

---
 src/commands/duration.js | 4 ----
 src/mixins/duration.js   | 4 +---
 2 files changed, 1 insertion(+), 7 deletions(-)

diff --git a/src/commands/duration.js b/src/commands/duration.js
index de9921b..bbd4d5a 100644
--- a/src/commands/duration.js
+++ b/src/commands/duration.js
@@ -8,10 +8,6 @@ export default class extends DurationMixin(Command) {
   static command = 'duration'
   static description = 'this is an example command showing duration parsing'
 
-  static flags = [
-    {name: 'foo'}
-  ]
-
   run () {
     this.log(`duration: ${this.duration}`)
   }
diff --git a/src/mixins/duration.js b/src/mixins/duration.js
index 02d0310..8262439 100644
--- a/src/mixins/duration.js
+++ b/src/mixins/duration.js
@@ -15,12 +15,10 @@ declare class App extends Command {
 
 export default function <T: Class<Command>> (Base: T): $Shape<Class<App>> {
   return class DurationMixin extends Base {
-    static get flags (): Flag[] { return this._flags.concat([FLAG]) }
+    static get flags (): Flag[] { return super.flags.concat([FLAG]) }
     static set flags (flags: Flag[]) { this._flags = flags }
 
     get duration (): Date {
-      this.inspect(this.constructor.flags)
-
       // this is a little gross but I think needed to cast it to a string
       let duration = (((this.flags.duration): any): string)
       return new Date(duration)

From a2b0252e24cd28065fdb5c10d5b194ac46318a0d Mon Sep 17 00:00:00 2001
From: Jeff Dickey <216188+jdxcode@users.noreply.github.com>
Date: Tue, 14 Mar 2017 13:28:53 -0700
Subject: [PATCH 3/7] flow fix

---
 src/commands/duration.js | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/commands/duration.js b/src/commands/duration.js
index bbd4d5a..8e504d2 100644
--- a/src/commands/duration.js
+++ b/src/commands/duration.js
@@ -1,4 +1,4 @@
-// @ flow
+// @flow
 
 import Command from 'cli-engine-command'
 import DurationMixin from '../mixins/duration'
@@ -9,6 +9,6 @@ export default class extends DurationMixin(Command) {
   static description = 'this is an example command showing duration parsing'
 
   run () {
-    this.log(`duration: ${this.duration}`)
+    this.log(`duration: ${this.duration.toString()}`)
   }
 }

From 24030bda1406d8959f20929044d455a75e23a4fe Mon Sep 17 00:00:00 2001
From: Jeff Dickey <216188+jdxcode@users.noreply.github.com>
Date: Wed, 15 Mar 2017 09:15:31 -0700
Subject: [PATCH 4/7] use new mixin syntax

---
 src/commands/duration.js |   6 +-
 src/mixins/duration.js   |  26 ++--
 yarn.lock                | 279 +++++++++++++++++++++------------------
 3 files changed, 164 insertions(+), 147 deletions(-)

diff --git a/src/commands/duration.js b/src/commands/duration.js
index 8e504d2..7ca8b96 100644
--- a/src/commands/duration.js
+++ b/src/commands/duration.js
@@ -1,13 +1,15 @@
 // @flow
 
 import Command from 'cli-engine-command'
-import DurationMixin from '../mixins/duration'
+import Duration from '../mixins/duration'
 
-export default class extends DurationMixin(Command) {
+export default class extends Command {
   static topic = 'cli'
   static command = 'duration'
   static description = 'this is an example command showing duration parsing'
 
+  duration = new Duration(this)
+
   run () {
     this.log(`duration: ${this.duration.toString()}`)
   }
diff --git a/src/mixins/duration.js b/src/mixins/duration.js
index 8262439..9b90b34 100644
--- a/src/mixins/duration.js
+++ b/src/mixins/duration.js
@@ -1,27 +1,23 @@
 // @flow
 
-import Command, {type Flag} from 'cli-engine-command' // eslint-disable-line
+import type Command from 'cli-engine-command'
 
-const FLAG: Flag = {
+export const FLAG = {
   name: 'duration',
   description: 'a duration',
   required: true,
   hasValue: true
 }
 
-declare class App extends Command {
-  duration: Date
-}
-
-export default function <T: Class<Command>> (Base: T): $Shape<Class<App>> {
-  return class DurationMixin extends Base {
-    static get flags (): Flag[] { return super.flags.concat([FLAG]) }
-    static set flags (flags: Flag[]) { this._flags = flags }
+export default class DurationMixin {
+  cmd: Command
+  constructor (cmd: Command) {
+    this.cmd = cmd
+  }
 
-    get duration (): Date {
-      // this is a little gross but I think needed to cast it to a string
-      let duration = (((this.flags.duration): any): string)
-      return new Date(duration)
-    }
+  get duration (): Date {
+    // this is a little gross but I think needed to cast it to a string
+    let duration = this.cmd.flags.duration
+    return new Date(duration)
   }
 }
diff --git a/yarn.lock b/yarn.lock
index d483eda..fdb7cd8 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -30,6 +30,13 @@ acorn@^3.0.4:
   version "3.3.0"
   resolved "https://registry.yarnpkg.com/acorn/-/acorn-3.3.0.tgz#45e37fb39e8da3f25baee3ff5369e2bb5f22017a"
 
+ajv@^4.9.1:
+  version "4.11.5"
+  resolved "https://registry.yarnpkg.com/ajv/-/ajv-4.11.5.tgz#b6ee74657b993a01dce44b7944d56f485828d5bd"
+  dependencies:
+    co "^4.6.0"
+    json-stable-stringify "^1.0.1"
+
 align-text@^0.1.1, align-text@^0.1.3:
   version "0.1.4"
   resolved "https://registry.yarnpkg.com/align-text/-/align-text-0.1.4.tgz#0cd90a561093f35d0a99256c22b7069433fad117"
@@ -137,14 +144,14 @@ asn1@~0.2.3:
   version "0.2.3"
   resolved "https://registry.yarnpkg.com/asn1/-/asn1-0.2.3.tgz#dac8787713c9966849fc8180777ebe9c1ddf3b86"
 
+assert-plus@1.0.0, assert-plus@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/assert-plus/-/assert-plus-1.0.0.tgz#f12e0f3c5d77b0b1cdd9146942e4e96c1e4dd525"
+
 assert-plus@^0.2.0:
   version "0.2.0"
   resolved "https://registry.yarnpkg.com/assert-plus/-/assert-plus-0.2.0.tgz#d74e1b87e7affc0db8aadb7021f3fe48101ab234"
 
-assert-plus@^1.0.0:
-  version "1.0.0"
-  resolved "https://registry.yarnpkg.com/assert-plus/-/assert-plus-1.0.0.tgz#f12e0f3c5d77b0b1cdd9146942e4e96c1e4dd525"
-
 async-each@^1.0.0:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/async-each/-/async-each-1.0.1.tgz#19d386a1d9edc6e7c1c85d388aedbcc56d33602d"
@@ -159,10 +166,6 @@ async@^2.1.4:
   dependencies:
     lodash "^4.14.0"
 
-async@~0.2.6:
-  version "0.2.10"
-  resolved "https://registry.yarnpkg.com/async/-/async-0.2.10.tgz#b6bbe0b0674b9d719708ca38de8c237cb526c3d1"
-
 asynckit@^0.4.0:
   version "0.4.0"
   resolved "https://registry.yarnpkg.com/asynckit/-/asynckit-0.4.0.tgz#c79ed97f7f34cb8f2ba1bc9790bcc366474b4b79"
@@ -432,8 +435,8 @@ block-stream@*:
     inherits "~2.0.0"
 
 bluebird@^3.1.1:
-  version "3.4.7"
-  resolved "https://registry.yarnpkg.com/bluebird/-/bluebird-3.4.7.tgz#f72d760be09b7f76d08ed8fae98b289a8d05fab3"
+  version "3.5.0"
+  resolved "https://registry.yarnpkg.com/bluebird/-/bluebird-3.5.0.tgz#791420d7f551eea2897453a8a77653f96606d67c"
 
 boom@2.x.x:
   version "2.10.1"
@@ -519,9 +522,9 @@ cardinal@^1.0.0:
     ansicolors "~0.2.1"
     redeyed "~1.0.0"
 
-caseless@~0.11.0:
-  version "0.11.0"
-  resolved "https://registry.yarnpkg.com/caseless/-/caseless-0.11.0.tgz#715b96ea9841593cc33067923f5ec60ebda4f7d7"
+caseless@~0.12.0:
+  version "0.12.0"
+  resolved "https://registry.yarnpkg.com/caseless/-/caseless-0.12.0.tgz#1b681c21ff84033c826543090689420d187151dc"
 
 center-align@^0.1.1:
   version "0.1.3"
@@ -610,6 +613,10 @@ cliui@^3.0.3, cliui@^3.2.0:
     strip-ansi "^3.0.1"
     wrap-ansi "^2.0.0"
 
+co@^4.6.0:
+  version "4.6.0"
+  resolved "https://registry.yarnpkg.com/co/-/co-4.6.0.tgz#6ea6bdf3d853ae54ccb8e47bfa0bf3f9031fb184"
+
 code-point-at@^1.0.0:
   version "1.1.0"
   resolved "https://registry.yarnpkg.com/code-point-at/-/code-point-at-1.1.0.tgz#0d070b4d043a5bea33a2f1a40e2edb3d9a4ccf77"
@@ -621,8 +628,8 @@ color-convert@^1.0.0:
     color-name "^1.1.1"
 
 color-name@^1.1.1:
-  version "1.1.1"
-  resolved "https://registry.yarnpkg.com/color-name/-/color-name-1.1.1.tgz#4b1415304cf50028ea81643643bd82ea05803689"
+  version "1.1.2"
+  resolved "https://registry.yarnpkg.com/color-name/-/color-name-1.1.2.tgz#5c8ab72b64bd2215d617ae9559ebb148475cf98d"
 
 colors@^1.1.2:
   version "1.1.2"
@@ -634,7 +641,7 @@ combined-stream@^1.0.5, combined-stream@~1.0.5:
   dependencies:
     delayed-stream "~1.0.0"
 
-commander@^2.8.1, commander@^2.9.0:
+commander@^2.8.1:
   version "2.9.0"
   resolved "https://registry.yarnpkg.com/commander/-/commander-2.9.0.tgz#9c99094176e12240cb22d6c5146098400fe0f7d4"
   dependencies:
@@ -698,11 +705,11 @@ cssom@0.3.x, "cssom@>= 0.3.2 < 0.4.0":
   dependencies:
     cssom "0.3.x"
 
-d@^0.1.1, d@~0.1.1:
-  version "0.1.1"
-  resolved "https://registry.yarnpkg.com/d/-/d-0.1.1.tgz#da184c535d18d8ee7ba2aa229b914009fae11309"
+d@1:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/d/-/d-1.0.0.tgz#754bb5bfe55451da69a58b94d45f4c5b0462d58f"
   dependencies:
-    es5-ext "~0.10.2"
+    es5-ext "^0.10.9"
 
 dashdash@^1.12.0:
   version "1.14.1"
@@ -715,8 +722,8 @@ debug-log@^1.0.0:
   resolved "https://registry.yarnpkg.com/debug-log/-/debug-log-1.0.1.tgz#2307632d4c04382b8df8a32f70b895046d52745f"
 
 debug@^2.1.1, debug@^2.2.0:
-  version "2.6.1"
-  resolved "https://registry.yarnpkg.com/debug/-/debug-2.6.1.tgz#79855090ba2c4e3115cc7d8769491d58f0491351"
+  version "2.6.3"
+  resolved "https://registry.yarnpkg.com/debug/-/debug-2.6.3.tgz#0f7eb8c30965ec08c72accfa0130c8b79984141d"
   dependencies:
     ms "0.7.2"
 
@@ -823,8 +830,8 @@ ecc-jsbn@~0.1.1:
     prr "~0.0.0"
 
 error-ex@^1.2.0:
-  version "1.3.0"
-  resolved "https://registry.yarnpkg.com/error-ex/-/error-ex-1.3.0.tgz#e67b43f3e82c96ea3a584ffee0b9fc3325d802d9"
+  version "1.3.1"
+  resolved "https://registry.yarnpkg.com/error-ex/-/error-ex-1.3.1.tgz#f855a86ce61adc4e8621c3cda21e7a7612c3a8dc"
   dependencies:
     is-arrayish "^0.2.1"
 
@@ -845,57 +852,57 @@ es-to-primitive@^1.1.1:
     is-date-object "^1.0.1"
     is-symbol "^1.0.1"
 
-es5-ext@^0.10.7, es5-ext@^0.10.8, es5-ext@~0.10.11, es5-ext@~0.10.2, es5-ext@~0.10.7:
-  version "0.10.12"
-  resolved "https://registry.yarnpkg.com/es5-ext/-/es5-ext-0.10.12.tgz#aa84641d4db76b62abba5e45fd805ecbab140047"
+es5-ext@^0.10.14, es5-ext@^0.10.9, es5-ext@~0.10.14:
+  version "0.10.14"
+  resolved "https://registry.yarnpkg.com/es5-ext/-/es5-ext-0.10.14.tgz#625bc9ab9cac0f6fb9dc271525823d1800b3d360"
   dependencies:
     es6-iterator "2"
     es6-symbol "~3.1"
 
-es6-iterator@2:
-  version "2.0.0"
-  resolved "https://registry.yarnpkg.com/es6-iterator/-/es6-iterator-2.0.0.tgz#bd968567d61635e33c0b80727613c9cb4b096bac"
+es6-iterator@2, es6-iterator@^2.0.1, es6-iterator@~2.0.1:
+  version "2.0.1"
+  resolved "https://registry.yarnpkg.com/es6-iterator/-/es6-iterator-2.0.1.tgz#8e319c9f0453bf575d374940a655920e59ca5512"
   dependencies:
-    d "^0.1.1"
-    es5-ext "^0.10.7"
-    es6-symbol "3"
+    d "1"
+    es5-ext "^0.10.14"
+    es6-symbol "^3.1"
 
 es6-map@^0.1.3:
-  version "0.1.4"
-  resolved "https://registry.yarnpkg.com/es6-map/-/es6-map-0.1.4.tgz#a34b147be224773a4d7da8072794cefa3632b897"
+  version "0.1.5"
+  resolved "https://registry.yarnpkg.com/es6-map/-/es6-map-0.1.5.tgz#9136e0503dcc06a301690f0bb14ff4e364e949f0"
   dependencies:
-    d "~0.1.1"
-    es5-ext "~0.10.11"
-    es6-iterator "2"
-    es6-set "~0.1.3"
-    es6-symbol "~3.1.0"
-    event-emitter "~0.3.4"
+    d "1"
+    es5-ext "~0.10.14"
+    es6-iterator "~2.0.1"
+    es6-set "~0.1.5"
+    es6-symbol "~3.1.1"
+    event-emitter "~0.3.5"
 
-es6-set@~0.1.3:
-  version "0.1.4"
-  resolved "https://registry.yarnpkg.com/es6-set/-/es6-set-0.1.4.tgz#9516b6761c2964b92ff479456233a247dc707ce8"
+es6-set@~0.1.5:
+  version "0.1.5"
+  resolved "https://registry.yarnpkg.com/es6-set/-/es6-set-0.1.5.tgz#d2b3ec5d4d800ced818db538d28974db0a73ccb1"
   dependencies:
-    d "~0.1.1"
-    es5-ext "~0.10.11"
-    es6-iterator "2"
-    es6-symbol "3"
-    event-emitter "~0.3.4"
+    d "1"
+    es5-ext "~0.10.14"
+    es6-iterator "~2.0.1"
+    es6-symbol "3.1.1"
+    event-emitter "~0.3.5"
 
-es6-symbol@3, es6-symbol@~3.1, es6-symbol@~3.1.0:
-  version "3.1.0"
-  resolved "https://registry.yarnpkg.com/es6-symbol/-/es6-symbol-3.1.0.tgz#94481c655e7a7cad82eba832d97d5433496d7ffa"
+es6-symbol@3.1.1, es6-symbol@^3.1, es6-symbol@^3.1.1, es6-symbol@~3.1, es6-symbol@~3.1.1:
+  version "3.1.1"
+  resolved "https://registry.yarnpkg.com/es6-symbol/-/es6-symbol-3.1.1.tgz#bf00ef4fdab6ba1b46ecb7b629b4c7ed5715cc77"
   dependencies:
-    d "~0.1.1"
-    es5-ext "~0.10.11"
+    d "1"
+    es5-ext "~0.10.14"
 
 es6-weak-map@^2.0.1:
-  version "2.0.1"
-  resolved "https://registry.yarnpkg.com/es6-weak-map/-/es6-weak-map-2.0.1.tgz#0d2bbd8827eb5fb4ba8f97fbfea50d43db21ea81"
+  version "2.0.2"
+  resolved "https://registry.yarnpkg.com/es6-weak-map/-/es6-weak-map-2.0.2.tgz#5e3ab32251ffd1538a1f8e5ffa1357772f92d96f"
   dependencies:
-    d "^0.1.1"
-    es5-ext "^0.10.8"
-    es6-iterator "2"
-    es6-symbol "3"
+    d "1"
+    es5-ext "^0.10.14"
+    es6-iterator "^2.0.1"
+    es6-symbol "^3.1.1"
 
 escape-string-regexp@^1.0.2, escape-string-regexp@^1.0.5:
   version "1.0.5"
@@ -1033,12 +1040,12 @@ esutils@^2.0.2:
   version "2.0.2"
   resolved "https://registry.yarnpkg.com/esutils/-/esutils-2.0.2.tgz#0abf4f1caa5bcb1f7a9d8acc6dea4faaa04bac9b"
 
-event-emitter@~0.3.4:
-  version "0.3.4"
-  resolved "https://registry.yarnpkg.com/event-emitter/-/event-emitter-0.3.4.tgz#8d63ddfb4cfe1fae3b32ca265c4c720222080bb5"
+event-emitter@~0.3.5:
+  version "0.3.5"
+  resolved "https://registry.yarnpkg.com/event-emitter/-/event-emitter-0.3.5.tgz#df8c69eef1647923c7157b9ce83840610b02cc39"
   dependencies:
-    d "~0.1.1"
-    es5-ext "~0.10.7"
+    d "1"
+    es5-ext "~0.10.14"
 
 exec-sh@^0.2.0:
   version "0.2.0"
@@ -1185,15 +1192,15 @@ flow-typed@2.0.0:
     which "^1.2.11"
     yargs "^4.2.0"
 
-for-in@^0.1.5:
-  version "0.1.6"
-  resolved "https://registry.yarnpkg.com/for-in/-/for-in-0.1.6.tgz#c9f96e89bfad18a545af5ec3ed352a1d9e5b4dc8"
+for-in@^1.0.1:
+  version "1.0.2"
+  resolved "https://registry.yarnpkg.com/for-in/-/for-in-1.0.2.tgz#81068d295a8142ec0ac726c6e2200c30fb6d5e80"
 
 for-own@^0.1.4:
-  version "0.1.4"
-  resolved "https://registry.yarnpkg.com/for-own/-/for-own-0.1.4.tgz#0149b41a39088c7515f51ebe1c1386d45f935072"
+  version "0.1.5"
+  resolved "https://registry.yarnpkg.com/for-own/-/for-own-0.1.5.tgz#5265c681a4f294dabbf17c9509b6763aa84510ce"
   dependencies:
-    for-in "^0.1.5"
+    for-in "^1.0.1"
 
 foreach@^2.0.5:
   version "2.0.5"
@@ -1252,8 +1259,8 @@ fstream-ignore@~1.0.5:
     minimatch "^3.0.0"
 
 fstream@^1.0.0, fstream@^1.0.2, fstream@~1.0.10:
-  version "1.0.10"
-  resolved "https://registry.yarnpkg.com/fstream/-/fstream-1.0.10.tgz#604e8a92fe26ffd9f6fae30399d4984e1ab22822"
+  version "1.0.11"
+  resolved "https://registry.yarnpkg.com/fstream/-/fstream-1.0.11.tgz#5c1fb1f117477114f0632a0eb4b71b3cb0fd3171"
   dependencies:
     graceful-fs "^4.1.2"
     inherits "~2.0.0"
@@ -1388,14 +1395,16 @@ handlebars@^4.0.3:
   optionalDependencies:
     uglify-js "^2.6"
 
-har-validator@~2.0.6:
-  version "2.0.6"
-  resolved "https://registry.yarnpkg.com/har-validator/-/har-validator-2.0.6.tgz#cdcbc08188265ad119b6a5a7c8ab70eecfb5d27d"
+har-schema@^1.0.5:
+  version "1.0.5"
+  resolved "https://registry.yarnpkg.com/har-schema/-/har-schema-1.0.5.tgz#d263135f43307c02c602afc8fe95970c0151369e"
+
+har-validator@~4.2.1:
+  version "4.2.1"
+  resolved "https://registry.yarnpkg.com/har-validator/-/har-validator-4.2.1.tgz#33481d0f1bbff600dd203d75812a6a5fba002e2a"
   dependencies:
-    chalk "^1.1.1"
-    commander "^2.9.0"
-    is-my-json-valid "^2.12.4"
-    pinkie-promise "^2.0.0"
+    ajv "^4.9.1"
+    har-schema "^1.0.5"
 
 has-ansi@^2.0.0:
   version "2.0.0"
@@ -1438,8 +1447,8 @@ home-or-tmp@^2.0.0:
     os-tmpdir "^1.0.1"
 
 hosted-git-info@^2.1.4:
-  version "2.2.0"
-  resolved "https://registry.yarnpkg.com/hosted-git-info/-/hosted-git-info-2.2.0.tgz#7a0d097863d886c0fabbdcd37bf1758d8becf8a5"
+  version "2.3.1"
+  resolved "https://registry.yarnpkg.com/hosted-git-info/-/hosted-git-info-2.3.1.tgz#ac439421605f0beb0ea1349de7d8bb28e50be1dd"
 
 html-encoding-sniffer@^1.0.1:
   version "1.0.1"
@@ -1464,8 +1473,8 @@ iconv-lite@0.4.13:
   resolved "https://registry.yarnpkg.com/iconv-lite/-/iconv-lite-0.4.13.tgz#1f88aba4ab0b1508e8312acc39345f36e992e2f2"
 
 ignore@^3.0.9, ignore@^3.2.0:
-  version "3.2.4"
-  resolved "https://registry.yarnpkg.com/ignore/-/ignore-3.2.4.tgz#4055e03596729a8fabe45a43c100ad5ed815c4e8"
+  version "3.2.6"
+  resolved "https://registry.yarnpkg.com/ignore/-/ignore-3.2.6.tgz#26e8da0644be0bb4cb39516f6c79f0e0f4ffe48c"
 
 imurmurhash@^0.1.4:
   version "0.1.4"
@@ -1529,8 +1538,8 @@ is-binary-path@^1.0.0:
     binary-extensions "^1.0.0"
 
 is-buffer@^1.0.2, is-buffer@~1.1.1:
-  version "1.1.4"
-  resolved "https://registry.yarnpkg.com/is-buffer/-/is-buffer-1.1.4.tgz#cfc86ccd5dc5a52fa80489111c6920c457e2d98b"
+  version "1.1.5"
+  resolved "https://registry.yarnpkg.com/is-buffer/-/is-buffer-1.1.5.tgz#1f3b26ef613b214b88cbca23cc6c01d87961eecc"
 
 is-builtin-module@^1.0.0:
   version "1.0.0"
@@ -1588,9 +1597,9 @@ is-glob@^2.0.0, is-glob@^2.0.1:
   dependencies:
     is-extglob "^1.0.0"
 
-is-my-json-valid@^2.10.0, is-my-json-valid@^2.12.4:
-  version "2.15.0"
-  resolved "https://registry.yarnpkg.com/is-my-json-valid/-/is-my-json-valid-2.15.0.tgz#936edda3ca3c211fd98f3b2d3e08da43f7b2915b"
+is-my-json-valid@^2.10.0:
+  version "2.16.0"
+  resolved "https://registry.yarnpkg.com/is-my-json-valid/-/is-my-json-valid-2.16.0.tgz#f079dd9bfdae65ee2038aae8acbc86ab109e3693"
   dependencies:
     generate-function "^2.0.0"
     generate-object-property "^1.1.0"
@@ -1621,7 +1630,7 @@ is-path-inside@^1.0.0:
 
 is-posix-bracket@^0.1.0:
   version "0.1.1"
-  resolved "http://registry.npmjs.org/is-posix-bracket/-/is-posix-bracket-0.1.1.tgz#3334dc79774368e92f016e6fbc0a88f5cd6e6bc4"
+  resolved "https://registry.yarnpkg.com/is-posix-bracket/-/is-posix-bracket-0.1.1.tgz#3334dc79774368e92f016e6fbc0a88f5cd6e6bc4"
 
 is-primitive@^2.0.0:
   version "2.0.0"
@@ -1962,8 +1971,8 @@ js-tokens@^3.0.0:
   resolved "https://registry.yarnpkg.com/js-tokens/-/js-tokens-3.0.1.tgz#08e9f132484a2c45a30907e9dc4d5567b7f114d7"
 
 js-yaml@^3.5.1, js-yaml@^3.7.0:
-  version "3.8.1"
-  resolved "https://registry.yarnpkg.com/js-yaml/-/js-yaml-3.8.1.tgz#782ba50200be7b9e5a8537001b7804db3ad02628"
+  version "3.8.2"
+  resolved "https://registry.yarnpkg.com/js-yaml/-/js-yaml-3.8.2.tgz#02d3e2c0f6beab20248d412c352203827d786721"
   dependencies:
     argparse "^1.0.7"
     esprima "^3.1.1"
@@ -1973,8 +1982,8 @@ jsbn@~0.1.0:
   resolved "https://registry.yarnpkg.com/jsbn/-/jsbn-0.1.1.tgz#a5e654c2e5a2deb5f201d96cefbca80c0ef2f513"
 
 jsdom@^9.11.0:
-  version "9.11.0"
-  resolved "https://registry.yarnpkg.com/jsdom/-/jsdom-9.11.0.tgz#a95b0304e521a2ca5a63c6ea47bf7708a7a84591"
+  version "9.12.0"
+  resolved "https://registry.yarnpkg.com/jsdom/-/jsdom-9.12.0.tgz#e8c546fffcb06c00d4833ca84410fed7f8a097d4"
   dependencies:
     abab "^1.0.3"
     acorn "^4.0.4"
@@ -2033,9 +2042,10 @@ jsonpointer@^4.0.0:
   resolved "https://registry.yarnpkg.com/jsonpointer/-/jsonpointer-4.0.1.tgz#4fd92cb34e0e9db3c89c8622ecf51f9b978c6cb9"
 
 jsprim@^1.2.2:
-  version "1.3.1"
-  resolved "https://registry.yarnpkg.com/jsprim/-/jsprim-1.3.1.tgz#2a7256f70412a29ee3670aaca625994c4dcff252"
+  version "1.4.0"
+  resolved "https://registry.yarnpkg.com/jsprim/-/jsprim-1.4.0.tgz#a3b87e40298d8c380552d8cc7628a0bb95a22918"
   dependencies:
+    assert-plus "1.0.0"
     extsprintf "1.0.2"
     json-schema "0.2.3"
     verror "1.3.6"
@@ -2246,8 +2256,8 @@ node-int64@^0.4.0:
   resolved "https://registry.yarnpkg.com/node-int64/-/node-int64-0.4.0.tgz#87a9065cdb355d3182d8f94ce11188b825c68a3b"
 
 node-notifier@^5.0.1:
-  version "5.0.2"
-  resolved "https://registry.yarnpkg.com/node-notifier/-/node-notifier-5.0.2.tgz#4438449fe69e321f941cef943986b0797032701b"
+  version "5.1.2"
+  resolved "https://registry.yarnpkg.com/node-notifier/-/node-notifier-5.1.2.tgz#2fa9e12605fa10009d44549d6fcd8a63dde0e4ff"
   dependencies:
     growly "^1.3.0"
     semver "^5.3.0"
@@ -2275,8 +2285,8 @@ nopt@~3.0.6:
     abbrev "1"
 
 normalize-package-data@^2.3.2:
-  version "2.3.5"
-  resolved "https://registry.yarnpkg.com/normalize-package-data/-/normalize-package-data-2.3.5.tgz#8d924f142960e1777e7ffe170543631cc7cb02df"
+  version "2.3.6"
+  resolved "https://registry.yarnpkg.com/normalize-package-data/-/normalize-package-data-2.3.6.tgz#498fa420c96401f787402ba21e600def9f981fff"
   dependencies:
     hosted-git-info "^2.1.4"
     is-builtin-module "^1.0.0"
@@ -2438,6 +2448,10 @@ path-type@^1.0.0:
     pify "^2.0.0"
     pinkie-promise "^2.0.0"
 
+performance-now@^0.2.0:
+  version "0.2.0"
+  resolved "https://registry.yarnpkg.com/performance-now/-/performance-now-0.2.0.tgz#33ef30c5c77d4ea21c5a53869d91b56d8f2555e5"
+
 pify@^2.0.0:
   version "2.3.0"
   resolved "https://registry.yarnpkg.com/pify/-/pify-2.3.0.tgz#ed141a6ac043a849ea588498e7dca8b15330e90c"
@@ -2509,9 +2523,9 @@ punycode@^1.4.1:
   version "1.4.1"
   resolved "https://registry.yarnpkg.com/punycode/-/punycode-1.4.1.tgz#c0d5a63b2718800ad8e1eb0fa5269c84dd41845e"
 
-qs@~6.3.0:
-  version "6.3.1"
-  resolved "https://registry.yarnpkg.com/qs/-/qs-6.3.1.tgz#918c0b3bcd36679772baf135b1acb4c1651ed79d"
+qs@~6.4.0:
+  version "6.4.0"
+  resolved "https://registry.yarnpkg.com/qs/-/qs-6.4.0.tgz#13e26d28ad6b0ffaa91312cd3bf708ed351e7233"
 
 randomatic@^1.1.3:
   version "1.1.6"
@@ -2545,8 +2559,8 @@ read-pkg@^1.0.0:
     path-type "^1.0.0"
 
 "readable-stream@^2.0.0 || ^1.1.13", readable-stream@^2.0.2, readable-stream@^2.2.2:
-  version "2.2.3"
-  resolved "https://registry.yarnpkg.com/readable-stream/-/readable-stream-2.2.3.tgz#9cf49463985df016c8ae8813097a9293a9b33729"
+  version "2.2.6"
+  resolved "https://registry.yarnpkg.com/readable-stream/-/readable-stream-2.2.6.tgz#8b43aed76e71483938d12a8d46c6cf1a00b1f816"
   dependencies:
     buffer-shims "^1.0.0"
     core-util-is "~1.0.0"
@@ -2603,7 +2617,7 @@ regenerator-runtime@^0.10.0:
 
 regex-cache@^0.4.2:
   version "0.4.3"
-  resolved "http://registry.npmjs.org/regex-cache/-/regex-cache-0.4.3.tgz#9b1a6c35d4d0dfcef5711ae651e8e9d3d7114145"
+  resolved "https://registry.yarnpkg.com/regex-cache/-/regex-cache-0.4.3.tgz#9b1a6c35d4d0dfcef5711ae651e8e9d3d7114145"
   dependencies:
     is-equal-shallow "^0.1.3"
     is-primitive "^2.0.0"
@@ -2623,17 +2637,17 @@ repeating@^2.0.0:
     is-finite "^1.0.0"
 
 request@^2.69.0, request@^2.79.0:
-  version "2.79.0"
-  resolved "https://registry.yarnpkg.com/request/-/request-2.79.0.tgz#4dfe5bf6be8b8cdc37fcf93e04b65577722710de"
+  version "2.81.0"
+  resolved "https://registry.yarnpkg.com/request/-/request-2.81.0.tgz#c6928946a0e06c5f8d6f8a9333469ffda46298a0"
   dependencies:
     aws-sign2 "~0.6.0"
     aws4 "^1.2.1"
-    caseless "~0.11.0"
+    caseless "~0.12.0"
     combined-stream "~1.0.5"
     extend "~3.0.0"
     forever-agent "~0.6.1"
     form-data "~2.1.1"
-    har-validator "~2.0.6"
+    har-validator "~4.2.1"
     hawk "~3.1.3"
     http-signature "~1.1.0"
     is-typedarray "~1.0.0"
@@ -2641,10 +2655,12 @@ request@^2.69.0, request@^2.79.0:
     json-stringify-safe "~5.0.1"
     mime-types "~2.1.7"
     oauth-sign "~0.8.1"
-    qs "~6.3.0"
+    performance-now "^0.2.0"
+    qs "~6.4.0"
+    safe-buffer "^5.0.1"
     stringstream "~0.0.4"
     tough-cookie "~2.3.0"
-    tunnel-agent "~0.4.1"
+    tunnel-agent "^0.6.0"
     uuid "^3.0.0"
 
 require-directory@^2.1.1:
@@ -2671,8 +2687,10 @@ resolve@1.1.7:
   resolved "https://registry.yarnpkg.com/resolve/-/resolve-1.1.7.tgz#203114d82ad2c5ed9e8e0411b3932875e889e97b"
 
 resolve@^1.1.6, resolve@^1.2.0:
-  version "1.2.0"
-  resolved "https://registry.yarnpkg.com/resolve/-/resolve-1.2.0.tgz#9589c3f2f6149d1417a40becc1663db6ec6bc26c"
+  version "1.3.2"
+  resolved "https://registry.yarnpkg.com/resolve/-/resolve-1.3.2.tgz#1f0442c9e0cbb8136e87b9305f932f46c7f28235"
+  dependencies:
+    path-parse "^1.0.5"
 
 restore-cursor@^1.0.1:
   version "1.0.1"
@@ -2750,8 +2768,8 @@ set-immediate-shim@^1.0.1:
   resolved "https://registry.yarnpkg.com/set-immediate-shim/-/set-immediate-shim-1.0.1.tgz#4b2b1b27eb808a9f8dcc481a58e5e56f599f3f61"
 
 shelljs@^0.7.5:
-  version "0.7.6"
-  resolved "https://registry.yarnpkg.com/shelljs/-/shelljs-0.7.6.tgz#379cccfb56b91c8601e4793356eb5382924de9ad"
+  version "0.7.7"
+  resolved "https://registry.yarnpkg.com/shelljs/-/shelljs-0.7.7.tgz#b2f5c77ef97148f4b4f6e22682e10bba8667cff1"
   dependencies:
     glob "^7.0.0"
     interpret "^1.0.0"
@@ -2780,10 +2798,10 @@ sntp@1.x.x:
     hoek "2.x.x"
 
 source-map-support@^0.4.2:
-  version "0.4.11"
-  resolved "https://registry.yarnpkg.com/source-map-support/-/source-map-support-0.4.11.tgz#647f939978b38535909530885303daf23279f322"
+  version "0.4.13"
+  resolved "https://registry.yarnpkg.com/source-map-support/-/source-map-support-0.4.13.tgz#9782e6f7deb424d5f173327a1879eb46453bdcd4"
   dependencies:
-    source-map "^0.5.3"
+    source-map "^0.5.6"
 
 source-map@^0.4.4:
   version "0.4.4"
@@ -2791,7 +2809,7 @@ source-map@^0.4.4:
   dependencies:
     amdefine ">=0.0.4"
 
-source-map@^0.5.0, source-map@^0.5.3, source-map@~0.5.1:
+source-map@^0.5.0, source-map@^0.5.3, source-map@^0.5.6, source-map@~0.5.1:
   version "0.5.6"
   resolved "https://registry.yarnpkg.com/source-map/-/source-map-0.5.6.tgz#75ce38f52bf0733c5a7f0c118d81334a2bb5f412"
 
@@ -2820,8 +2838,8 @@ sprintf-js@~1.0.2:
   resolved "https://registry.yarnpkg.com/sprintf-js/-/sprintf-js-1.0.3.tgz#04e6926f662895354f3dd015203633b857297e2c"
 
 sshpk@^1.7.0:
-  version "1.10.2"
-  resolved "https://registry.yarnpkg.com/sshpk/-/sshpk-1.10.2.tgz#d5a804ce22695515638e798dbe23273de070a5fa"
+  version "1.11.0"
+  resolved "https://registry.yarnpkg.com/sshpk/-/sshpk-1.11.0.tgz#2d8d5ebb4a6fab28ffba37fa62a90f4a3ea59d77"
   dependencies:
     asn1 "~0.2.3"
     assert-plus "^1.0.0"
@@ -3006,9 +3024,11 @@ tryit@^1.0.1:
   version "1.0.3"
   resolved "https://registry.yarnpkg.com/tryit/-/tryit-1.0.3.tgz#393be730a9446fd1ead6da59a014308f36c289cb"
 
-tunnel-agent@~0.4.1:
-  version "0.4.3"
-  resolved "https://registry.yarnpkg.com/tunnel-agent/-/tunnel-agent-0.4.3.tgz#6373db76909fe570e08d73583365ed828a74eeeb"
+tunnel-agent@^0.6.0:
+  version "0.6.0"
+  resolved "https://registry.yarnpkg.com/tunnel-agent/-/tunnel-agent-0.6.0.tgz#27a5dea06b36b04a0a9966774b290868f0fc40fd"
+  dependencies:
+    safe-buffer "^5.0.1"
 
 tv4@^1.2.7:
   version "1.2.7"
@@ -3029,10 +3049,9 @@ typedarray@^0.0.6:
   resolved "https://registry.yarnpkg.com/typedarray/-/typedarray-0.0.6.tgz#867ac74e3864187b1d3d47d996a78ec5c8830777"
 
 uglify-js@^2.6:
-  version "2.7.5"
-  resolved "https://registry.yarnpkg.com/uglify-js/-/uglify-js-2.7.5.tgz#4612c0c7baaee2ba7c487de4904ae122079f2ca8"
+  version "2.8.13"
+  resolved "https://registry.yarnpkg.com/uglify-js/-/uglify-js-2.8.13.tgz#d0cdf02f3c661484fac601b7e723207b735a374c"
   dependencies:
-    async "~0.2.6"
     source-map "~0.5.1"
     uglify-to-browserify "~1.0.0"
     yargs "~3.10.0"
@@ -3121,8 +3140,8 @@ whatwg-encoding@^1.0.1:
     iconv-lite "0.4.13"
 
 whatwg-url@^4.3.0:
-  version "4.5.0"
-  resolved "https://registry.yarnpkg.com/whatwg-url/-/whatwg-url-4.5.0.tgz#79bb6f0e370a4dda1cbc8f3062a490cf8bbb09ea"
+  version "4.6.0"
+  resolved "https://registry.yarnpkg.com/whatwg-url/-/whatwg-url-4.6.0.tgz#ef98da442273be04cf9632e176f257d2395a1ae4"
   dependencies:
     tr46 "~0.0.3"
     webidl-conversions "^3.0.0"

From 1d61fce1dca99774255a8a9f6d21fe879122e747 Mon Sep 17 00:00:00 2001
From: Jeff Dickey <216188+jdxcode@users.noreply.github.com>
Date: Wed, 15 Mar 2017 09:16:47 -0700
Subject: [PATCH 5/7] use new mixin syntax

---
 src/mixins/duration.js | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/src/mixins/duration.js b/src/mixins/duration.js
index 9b90b34..5f737c2 100644
--- a/src/mixins/duration.js
+++ b/src/mixins/duration.js
@@ -9,14 +9,13 @@ export const FLAG = {
   hasValue: true
 }
 
-export default class DurationMixin {
+export default class Duration {
   cmd: Command
   constructor (cmd: Command) {
     this.cmd = cmd
   }
 
   get duration (): Date {
-    // this is a little gross but I think needed to cast it to a string
     let duration = this.cmd.flags.duration
     return new Date(duration)
   }

From 052a8f1fcffd41584f07b94424093849bc484a44 Mon Sep 17 00:00:00 2001
From: Jeff Dickey <216188+jdxcode@users.noreply.github.com>
Date: Wed, 15 Mar 2017 09:20:50 -0700
Subject: [PATCH 6/7] fix mixin

---
 src/commands/duration.js | 6 ++++--
 src/mixins/duration.js   | 4 ++--
 2 files changed, 6 insertions(+), 4 deletions(-)

diff --git a/src/commands/duration.js b/src/commands/duration.js
index 7ca8b96..bfe7ea3 100644
--- a/src/commands/duration.js
+++ b/src/commands/duration.js
@@ -1,16 +1,18 @@
 // @flow
 
 import Command from 'cli-engine-command'
-import Duration from '../mixins/duration'
+import Duration, {DurationFlag} from '../mixins/duration'
 
 export default class extends Command {
   static topic = 'cli'
   static command = 'duration'
   static description = 'this is an example command showing duration parsing'
+  static flags = [DurationFlag]
 
   duration = new Duration(this)
 
   run () {
-    this.log(`duration: ${this.duration.toString()}`)
+    this.log('duration:')
+    this.inspect(this.duration.value)
   }
 }
diff --git a/src/mixins/duration.js b/src/mixins/duration.js
index 5f737c2..da6ccb1 100644
--- a/src/mixins/duration.js
+++ b/src/mixins/duration.js
@@ -2,7 +2,7 @@
 
 import type Command from 'cli-engine-command'
 
-export const FLAG = {
+export const DurationFlag = {
   name: 'duration',
   description: 'a duration',
   required: true,
@@ -15,7 +15,7 @@ export default class Duration {
     this.cmd = cmd
   }
 
-  get duration (): Date {
+  get value (): Date {
     let duration = this.cmd.flags.duration
     return new Date(duration)
   }

From a73fdd9a2cf46ff1377f667b32f58bde138fe447 Mon Sep 17 00:00:00 2001
From: Jeff Dickey <216188+jdxcode@users.noreply.github.com>
Date: Fri, 17 Mar 2017 21:26:03 -0700
Subject: [PATCH 7/7] use new flag syntax

---
 package.json             |  2 +-
 src/commands/duration.js | 10 ++++------
 src/flags/duration.js    | 19 +++++++++++++++++++
 src/mixins/duration.js   | 22 ----------------------
 yarn.lock                |  6 +++---
 5 files changed, 27 insertions(+), 32 deletions(-)
 create mode 100644 src/flags/duration.js
 delete mode 100644 src/mixins/duration.js

diff --git a/package.json b/package.json
index fdac133..5bd4d36 100644
--- a/package.json
+++ b/package.json
@@ -3,7 +3,7 @@
   "version": "2.1.0",
   "author": "Jeff Dickey @dickeyxxxx",
   "dependencies": {
-    "cli-engine-command": "2.2.4"
+    "cli-engine-command": "2.2.5"
   },
   "devDependencies": {
     "babel-cli": "^6.24.0",
diff --git a/src/commands/duration.js b/src/commands/duration.js
index bfe7ea3..a1ac8be 100644
--- a/src/commands/duration.js
+++ b/src/commands/duration.js
@@ -1,18 +1,16 @@
 // @flow
 
 import Command from 'cli-engine-command'
-import Duration, {DurationFlag} from '../mixins/duration'
+import DurationFlag from '../flags/duration'
 
 export default class extends Command {
   static topic = 'cli'
   static command = 'duration'
   static description = 'this is an example command showing duration parsing'
-  static flags = [DurationFlag]
+  static flags = {duration: DurationFlag()}
 
-  duration = new Duration(this)
-
-  run () {
+  async run () {
     this.log('duration:')
-    this.inspect(this.duration.value)
+    this.inspect(this.flags.duration)
   }
 }
diff --git a/src/flags/duration.js b/src/flags/duration.js
new file mode 100644
index 0000000..8d8fa87
--- /dev/null
+++ b/src/flags/duration.js
@@ -0,0 +1,19 @@
+// @flow
+
+import type {Flag} from 'cli-engine-command'
+
+type Options = $Shape<Flag<Date>>
+
+export default function DurationFlag (options: Options = {}, env: typeof process.env = process.env): Flag<Date> {
+  const defaultOptions: Options = {
+    description: 'a duration',
+    parse: (input) => {
+      if (!input) {
+        if (options.required) throw new Error('No org specified')
+        return
+      }
+      return new Date(input)
+    }
+  }
+  return Object.assign(defaultOptions, options)
+}
diff --git a/src/mixins/duration.js b/src/mixins/duration.js
deleted file mode 100644
index da6ccb1..0000000
--- a/src/mixins/duration.js
+++ /dev/null
@@ -1,22 +0,0 @@
-// @flow
-
-import type Command from 'cli-engine-command'
-
-export const DurationFlag = {
-  name: 'duration',
-  description: 'a duration',
-  required: true,
-  hasValue: true
-}
-
-export default class Duration {
-  cmd: Command
-  constructor (cmd: Command) {
-    this.cmd = cmd
-  }
-
-  get value (): Date {
-    let duration = this.cmd.flags.duration
-    return new Date(duration)
-  }
-}
diff --git a/yarn.lock b/yarn.lock
index fdb7cd8..d37b445 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -576,9 +576,9 @@ cli-cursor@^1.0.1:
   dependencies:
     restore-cursor "^1.0.1"
 
-cli-engine-command@2.2.4:
-  version "2.2.4"
-  resolved "https://registry.yarnpkg.com/cli-engine-command/-/cli-engine-command-2.2.4.tgz#5fec4faec100a3b7b437e5bc9d8ce543c27f68c5"
+cli-engine-command@2.2.5:
+  version "2.2.5"
+  resolved "https://registry.yarnpkg.com/cli-engine-command/-/cli-engine-command-2.2.5.tgz#31c4bd2e08bf8ea2a2e4404ae6f07da3f8f41e02"
   dependencies:
     ansi-escapes "^1.4.0"
     cardinal "^1.0.0"