Adding migrations scrips directory as optional parameter

Author: Jesus

README.md

@@ -14,6 +14,7 @@ Down migrations are run in reverse run order.
 Options:
   --datasource specify database name (optional, default: db)
   --since specify date to run migrations from (options, default: run all migrations)
+  --directory specify directory where migration scripts will live (options, default: '/server/migrations/'). A trailing slash is added at the end if not present 
 ```
 
 <h2>Using the CLI directly</h2>
@@ -27,6 +28,11 @@ Run all new migrations since 01012014 that have not previously been run, using d
 NODE_ENV=qa ./node_modules/loopback-db-migrate/loopback-db-migrate.js up --datasource my_db_name --since 01012014
 ```
 
+Run all migrations living in the '/server/schema-migrations/' directory that have not previously been run, using datasource.json and database 'db'.
+```javascript
+./node_modules/loopback-db-migrate/loopback-db-migrate.js up --directory /server/schema-migrations/
+```
+
 <h2>Using the CLI with npm by updating your package.json</h2>
 ```javascript
 "scripts": {
@@ -62,4 +68,4 @@ module.exports = {
         dataSource.connector.query('DROP TABLE `my_table`;', next);
     }
 };
-```
+```

loopback-db-migrate.js

@@ -7,7 +7,8 @@ var fs = require('fs'),
     dbName = (dbNameFlag > -1) ? process.argv[dbNameFlag + 1] : 'db',
     dateSinceFlag = process.argv.indexOf('--since'),
     dateSinceFilter = (dateSinceFlag > -1) ? process.argv[dateSinceFlag + 1] : '',
-    migrationsFolder = process.cwd() + '/server/migrations/',
+    migrationsFolderFlag = process.argv.indexOf('--directory'),
+    migrationsFolder = process.cwd() + ( migrationsFolderFlag > -1 ? process.argv[migrationsFolderFlag + 1].replace(/\/?$/, '/') : '/server/migrations/'),
     dbMigrationsFolder = migrationsFolder+dbName,
     datasource = require(process.cwd() + '/server/server.js').dataSources[dbName];