moved database creation to only run when a flag is passed

README.md

@@ -19,3 +19,15 @@ In the ```config``` folder, create the following files:
     - database
 
     You must GRANT ALL privileges to the given user on the given database
+
+Once you have created these files, run the program using
+```
+node index.js -d
+```
+The `-d` flag tells the program to create the database tables and indexes it
+needs.
+
+# Command Line Options
+- `-d`: create database tables and indexes that are missing. Does not delete or
+    modify existing tables, so you needn't worry if you run it when tables are
+    already set up.

index.js

@@ -11,10 +11,10 @@ const bodyParser = require("body-parser");
 const {mysqlOptions, get} = require("./src/config.js");
 const {createServices} = require("./src/model/export.js");
 const {registerControllers} = require("./src/controllers/export.js");
+const {parseCommandLineArguments} = require("./src/commandLine.js");
 const {
     extractMySqlConfig,
-    DatabaseConnection,
-    createRequiredTablesIn
+    DatabaseConnection
 } = require("./src/model/database.js");
 const {testDatabase} = require("./src/test.js");
 
@@ -42,7 +42,7 @@ app.use(session({
 
 
 const db = new DatabaseConnection(get("dbPrefix"), mysqlOptions);
-createRequiredTablesIn(db); //todo only run when cmd line flag is passed
+parseCommandLineArguments(db);
 //testDatabase(db);
 
 

src/commandLine.js

@@ -0,0 +1,19 @@
+/*
+This is a basic command line argument parser. Future versions will want to use a
+real CLI library as the program grows more complicated.
+*/
+
+
+
+const {createRequiredTablesIn} = require("./model/database.js");
+
+
+
+async function parseCommandLineArguments(databaseConnection){
+    const args = process.argv;
+
+    if(args.includes("-d")){
+        await createRequiredTablesIn(databaseConnection);
+    }
+}
+exports.parseCommandLineArguments = parseCommandLineArguments;