Adding support custom for CRON_DB_PATH

app.js

@@ -153,7 +153,7 @@ app.get(routes.restore_backup, function(req, res) {
 
 // export current crontab db so that user can download it
 app.get(routes.export, function(req, res) {
-	var file = __dirname + '/crontabs/crontab.db';
+	var file = crontab.crontab_db_file;
 
 	var filename = path.basename(file);
 	var mimetype = mime.lookup(file);
@@ -170,7 +170,7 @@ app.post(routes.import, function(req, res) {
 	var fstream;
 	req.pipe(req.busboy);
 	req.busboy.on('file', function (fieldname, file, filename) {
-		fstream = fs.createWriteStream(__dirname + '/crontabs/crontab.db');
+		fstream = fs.createWriteStream(crontab.crontab_db_file);
 		file.pipe(fstream);
 		fstream.on('close', function () {
 			crontab.reload_db();
@@ -244,7 +244,7 @@ app.listen(app.get('port'), app.get('host'), function() {
   // we do this by watching log file and setting a on change hook to it
   if (process.argv.includes("--autosave")){
     crontab.autosave_crontab(()=>{});
-    fs.watchFile(__dirname + '/crontabs/crontab.db', () => {
+    fs.watchFile(crontab.crontab_db_file, () => {
       crontab.autosave_crontab(()=>{
         console.log("Attempted to autosave crontab");
       });
@@ -252,8 +252,8 @@ app.listen(app.get('port'), app.get('host'), function() {
   }
   if (process.argv.includes("--reset")){
     console.log("Resetting crontab-ui");
-    var crontabdb = __dirname + "/crontabs/crontab.db";
+    var crontabdb = crontab.crontab_db_file;
-    var envdb = __dirname + "/crontabs/env.db";
+    var envdb = crontab.env_file;
 
     console.log("Deleting " + crontabdb);
     try{

crontab.js

@@ -2,7 +2,14 @@
 //load database
 var Datastore = require('nedb');
 var path = require("path");
-var db = new Datastore({ filename: __dirname + '/crontabs/crontab.db' });
+
+exports.db_folder = process.env.CRON_DB_PATH === undefined ? path.join(__dirname,  "crontabs") : process.env.CRON_DB_PATH;
+console.log("Cron db path: " + exports.db_folder);
+exports.log_folder = path.join(exports.db_folder, 'logs');
+exports.env_file =  path.join(exports.db_folder, 'env.db');
+exports.crontab_db_file = path.join(exports.db_folder, 'crontab.db');
+
+var db = new Datastore({ filename: exports.crontab_db_file});
 var cronPath = "/tmp";
 
 if(process.env.CRON_PATH !== undefined) {
@@ -18,8 +25,6 @@ var exec = require('child_process').exec;
 var fs = require('fs');
 var cron_parser = require("cron-parser");
 
-exports.log_folder = __dirname + '/crontabs/logs';
-exports.env_file = __dirname + '/crontabs/env.db';
 
 crontab = function(name, command, schedule, stopped, logging, mailing){
 	var data = {};
@@ -160,7 +165,7 @@ exports.set_crontab = function(env_vars, callback){
 
 exports.get_backup_names = function(){
 	var backups = [];
-	fs.readdirSync(__dirname + '/crontabs').forEach(function(file){
+	fs.readdirSync(exports.db_folder).forEach(function(file){
 		// file name begins with backup
 		if(file.indexOf("backup") === 0){
 			backups.push(file);
@@ -187,11 +192,11 @@ exports.get_backup_names = function(){
 
 exports.backup = function(){
 	//TODO check if it failed
-	fs.createReadStream( __dirname + '/crontabs/crontab.db').pipe(fs.createWriteStream( __dirname + '/crontabs/backup ' + (new Date()).toString().replace("+", " ") + '.db'));
+	fs.createReadStream(exports.crontab_db_file).pipe(fs.createWriteStream( path.join(exports.db_folder, 'backup ' + (new Date()).toString().replace("+", " ") + '.db')));
 };
 
 exports.restore = function(db_name){
-	fs.createReadStream( __dirname + '/crontabs/' + db_name).pipe(fs.createWriteStream( __dirname + '/crontabs/crontab.db'));
+	fs.createReadStream(path.join(exports.db_folder, db_name)).pipe(fs.createWriteStream(exports.crontab_db_file));
 	db.loadDatabase(); // reload the database
 };