feat: allow custom config to be passed

src/init/CliRunner.ts

@@ -1,3 +1,4 @@
+import * as Path from 'path';
 import { ReadStream, WriteStream } from 'tty';
 import { Loader, LoaderProperties } from 'componentsjs';
 import yargs from 'yargs';
@@ -23,15 +24,21 @@ export const runCustom = function(
     .usage('node ./bin/server.js [args]')
     .options({
       port: { type: 'number', alias: 'p' },
+      config: { type: 'string', alias: 'c' },
     })
     .help();
 
   new Promise<RuntimeConfig>(async(resolve): Promise<void> => {
+    // Load provided or default config file
+    const configPath = argv.config ?
+      Path.join(process.cwd(), argv.config) :
+      `${__dirname}/../../config/config-default.json`;
+
     // Setup from config file
     const loader = new Loader(properties);
     await loader.registerAvailableModuleResources();
     const setup: Setup = await loader
-      .instantiateFromUrl('urn:solid-server:my', `${__dirname}/../../config/config-default.json`);
+      .instantiateFromUrl('urn:solid-server:my', configPath);
     resolve(await setup.setup({ port: argv.port }));
   }).then((runtimeConfig: RuntimeConfig): void => {
     stdout.write(`Running at ${runtimeConfig.base}\n`);