From a3f0b86fea4f8aafbd561c1a8e102cc4cd290828 Mon Sep 17 00:00:00 2001
From: Pierre HUBERT <pierre.git@communiquons.org>
Date: Mon, 25 May 2020 18:21:37 +0200
Subject: [PATCH] Can show command line help

---
 src/help.ts | 16 ++++++++++++++++
 src/main.ts | 15 ++++++++++++++-
 2 files changed, 30 insertions(+), 1 deletion(-)
 create mode 100644 src/help.ts

diff --git a/src/help.ts b/src/help.ts
new file mode 100644
index 0000000..e84fcce
--- /dev/null
+++ b/src/help.ts
@@ -0,0 +1,16 @@
+/**
+ * Command-line usage help
+ * 
+ * @author Pierre Hubert
+ */
+
+export function showHelp() {
+	console.info(
+		"Usage:\n" +
+		"* server (default) : Start the API server\n" +
+		"* help : Show this message\n" +
+		"* migration [mig_id] : Start a migration"
+	);
+
+	process.exit(0);
+}
\ No newline at end of file
diff --git a/src/main.ts b/src/main.ts
index 850e632..f692c04 100644
--- a/src/main.ts
+++ b/src/main.ts
@@ -1,6 +1,7 @@
 import { ConfigurationHelper } from "./helpers/ConfigHelper";
 import { DatabaseHelper } from "./helpers/DatabaseHelper";
 import { startServer } from "./server";
+import { showHelp } from "./help";
 
 /**
  * Main project script
@@ -20,6 +21,18 @@ async function init() {
 	console.info("Connect to database");
 	await DatabaseHelper.connect();
 
-	await startServer();
+	const action = process.argv.length < 4 ? "server" : process.argv[3];
+
+	switch(action) {
+		case "help":
+			showHelp();
+			break;
+		
+		case "server":
+			await startServer();
+			break;
+		
+		
+	}
 }
 init();
\ No newline at end of file