add runmigration and makemigration to cli

Author: Michael Maslov

README.md

@@ -13,12 +13,12 @@ This package provide two tools:
 * Create your models
 * Create initial migration - run:
 
-`node ./node_modules/sequelize-auto-migrations/bin/makemigration --name <migration name>`
+`makemigration --name <migration name>`
 * Change models and run it again, model difference will be saved to the next migration
 
 To preview new migration, without any changes, you can run:
 
-`node ./node_modules/sequelize-auto-migrations/bin/makemigration --preview`
+`makemigration --preview`
 
 `makemigration` tool creates `_current.json` file in `migrations` dir, that is used to calculate difference to the next migration. Do not remove it!
 
@@ -28,7 +28,7 @@ To create and then execute migration, use:
 ## Executing migrations
 * There is simple command to perform all created migrations (from selected revision):
 
-`node ./node_modules/sequelize-auto-migrations/bin/runmigration`
+`runmigration`
 * To select a revision, use `--rev <x>`
 * If migration fails, you can continue, use `--pos <x>`
 * To prevent execution next migrations, use `--one`

bin/makemigration.js

@@ -1,4 +1,4 @@
-#!/bin/node
+#!/usr/bin/env node
 
 const commandLineArgs = require('command-line-args');
 const beautify          = require('js-beautify').js_beautify;
@@ -32,6 +32,7 @@ if (options.help)
     process.exit(0);    
 }
 
+// Windows support
 if(!process.env.PWD){
     process.env.PWD = process.cwd()
 }
@@ -41,6 +42,16 @@ const {
     modelsDir
 } = pathConfig(options);
 
+if (!fs.existsSync(modelsDir)) {
+    console.log("Can't find models directory. Use `sequelize init` to create it")
+    return
+}
+
+if (!fs.existsSync(migrationsDir)) {
+    console.log("Can't find migrations directory. Use `sequelize init` to create it")
+    return
+}
+
 // current state
 const currentState = {
     tables: {}

bin/runmigration.js

@@ -1,4 +1,4 @@
-#!/bin/node
+#!/usr/bin/env node
 
 const path              = require("path");
 const commandLineArgs   = require('command-line-args');
@@ -20,6 +20,7 @@ const optionDefinitions = [
 
 const options = commandLineArgs(optionDefinitions);
 
+// Windows support
 if(!process.env.PWD){
     process.env.PWD = process.cwd()
 }
@@ -29,6 +30,16 @@ let {
     modelsDir
 } = pathConfig(options);
 
+if (!fs.existsSync(modelsDir)) {
+    console.log("Can't find models directory. Use `sequelize init` to create it")
+    return
+}
+
+if (!fs.existsSync(migrationsDir)) {
+    console.log("Can't find migrations directory. Use `sequelize init` to create it")
+    return
+}
+
 if (options.help)
 {
     console.log("Simple sequelize migration execution tool\n\nUsage:");
@@ -39,7 +50,6 @@ if (options.help)
     process.exit(0);
 }
 
-const Sequelize = require("sequelize");
 const sequelize = require(modelsDir).sequelize;
 const queryInterface = sequelize.getQueryInterface();