From 82a55ff3d5ecb3d3697ad64398310a5829e20c53 Mon Sep 17 00:00:00 2001
From: Vladimir Guguiev <wizardzloy@gmail.com>
Date: Sun, 19 Feb 2017 13:29:58 +0100
Subject: [PATCH] refactor(cli): allow cli to accept flags

affects: lerna-semantic-release

also print --help message with usage documentation
---
 .../bin/lerna-semantic-release.js             | 24 ++++++++++++++++++-
 packages/lerna-semantic-release/package.json  |  9 +++----
 2 files changed, 28 insertions(+), 5 deletions(-)

diff --git a/packages/lerna-semantic-release/bin/lerna-semantic-release.js b/packages/lerna-semantic-release/bin/lerna-semantic-release.js
index bea8047a6c..acf039c0b8 100755
--- a/packages/lerna-semantic-release/bin/lerna-semantic-release.js
+++ b/packages/lerna-semantic-release/bin/lerna-semantic-release.js
@@ -1,9 +1,30 @@
 #!/usr/bin/env node
 
-var task = process.argv[2];
+var meow = require('meow');
 var io = require('lerna-semantic-release-io').default;
 var log = require('lerna-semantic-release-utils').log;
 
+var cli = meow(
+  {
+    help: `
+      Usage
+        $ lerna-semantic-release [command]
+        
+      Commands: 
+        pre       Set up the versions, tags and commits
+        perform   Publishes to npm
+        post      Generates a changelog in each package in a file named CHANGELOG.md - will not commit or push that file. If you want to do something with it, you will need to do this manually.
+    `,
+  },
+  {
+    alias: {
+      h: 'help'
+    }
+  }
+);
+
+var task = cli.input && cli.input[0];
+
 var tasks = {
   pre: require('lerna-semantic-release-pre'),
   perform: require('lerna-semantic-release-perform'),
@@ -17,6 +38,7 @@ function errorHandler(err) {
 
 try {
   tasks[task]({
+    flags: cli.flags,
     io: io,
     callback: errorHandler
   });
diff --git a/packages/lerna-semantic-release/package.json b/packages/lerna-semantic-release/package.json
index 744fc6be64..299e9bb00a 100644
--- a/packages/lerna-semantic-release/package.json
+++ b/packages/lerna-semantic-release/package.json
@@ -14,11 +14,12 @@
     }
   },
   "dependencies": {
-    "lerna-semantic-release-pre": "^4.1.1",
-    "lerna-semantic-release-post": "^6.0.0",
-    "lerna-semantic-release-perform": "^4.0.15",
     "lerna-semantic-release-io": "^7.0.0",
-    "lerna-semantic-release-utils": "^4.0.0"
+    "lerna-semantic-release-perform": "^4.0.15",
+    "lerna-semantic-release-post": "^6.0.0",
+    "lerna-semantic-release-pre": "^4.1.1",
+    "lerna-semantic-release-utils": "^4.0.0",
+    "meow": "^3.7.0"
   },
   "peerDependencies": {
     "lerna": "^2.0.0-beta.31"