add db init method, prepare for db testing

app.js

@@ -1,6 +1,7 @@
 'use strict';
 
-var http = require('http'),
+var db = require('./db'),
+	http = require('http'),
 	nodeStatic = require('node-static'),
 	jade = require('jade'),
 	path = require('path'),
@@ -72,6 +73,11 @@ Steppy(
 		console.log('Server config:', JSON.stringify(app.config, null, 4));
 
 		notifier.init(app.config.notify, this.slot());
+
+		db.init('path/to/db/ignored/for/memdown', {
+			db: require('memdown'),
+			valueEncoding: 'json'
+		}, this.slot());
 	},
 	function() {
 		// load all projects for the first time

db.js

@@ -2,11 +2,11 @@
 
 var Steppy = require('twostep').Steppy,
 	_ = require('underscore'),
-	nlevel = require('nlevel'),
-	ldb = nlevel.db('path/to/db/ignored/for/memdown', {
-		db: require('memdown'),
-		valueEncoding: 'json'
-	});
+	nlevel = require('nlevel');
+
+
+exports.init = function(dbPath, params, callback) {
+	var ldb = nlevel.db(dbPath, params, callback);
 
 	exports.builds = new nlevel.DocsSection(ldb, 'builds', {
 		projections: [
@@ -26,10 +26,6 @@ exports.builds = new nlevel.DocsSection(ldb, 'builds', {
 		]
 	});
 
-function pickProjectName(build) {
-	return build.project.name;
-}
-
 	exports.builds._beforePut = function(builds, callback) {
 		var self = this,
 			build;
@@ -68,6 +64,12 @@ exports.builds._beforePut = function(builds, callback) {
 			callback
 		);
 	};
+};
+
+function pickProjectName(build) {
+	return build.project.name;
+}
+
 
 function generateIds(section, docs, callback) {
 	Steppy(

test/db/concurrent.js

@@ -0,0 +1,5 @@
+'use strict';
+
+describe('Db concurrency', function() {
+
+});

test/db/index.js

@@ -0,0 +1,3 @@
+'use strict';
+
+require('./concurrent');

test/index.js

@@ -1,6 +1,7 @@
 'use strict';
 
 require('./commands');
+require('./db');
 require('./scm');
 require('./executor');
 require('./node');