Add upgrade command (#17)

README.md

@@ -6,7 +6,7 @@
 
 ## Install
 ```bash
-$ deno install --allow-env --allow-run --allow-net https://deno.land/x/commit_genius/cg.ts
+$ deno install --allow-env --allow-run --allow-net --allow-read https://deno.land/x/commit_genius/cg.ts
 ✅ Successfully installed cg
 
 $ cg --version

commands/main.ts

@@ -1,4 +1,10 @@
-import { Command, EnumType, ValidationError } from "../deps.ts";
+import {
+  Command,
+  DenoLandProvider,
+  EnumType,
+  UpgradeCommand,
+  ValidationError,
+} from "../deps.ts";
 import { getDiffText } from "../lib/get_diff_text.ts";
 import { getCommitMessageSuggestion } from "../lib/get_commit_message_suggestion.ts";
 
@@ -32,6 +38,15 @@ export class MainCommand extends Command {
         );
 
         console.log(commitMessageSuggestion);
-      });
+      })
+      .command(
+        "upgrade",
+        new UpgradeCommand({
+          main: "cg.ts",
+          args: ["--allow-env", "--allow-run", "--allow-net", "--allow-read"],
+          provider: new DenoLandProvider({ name: "commit_genius" }),
+        }),
+      )
+      .reset();
   }
 }

commands/main_test.ts

@@ -15,6 +15,10 @@ Deno.test("help command", () => {
 
     -m, --model  <model>  - Model Type  (Default: "gpt-3.5-turbo", Values: "gpt-3.5-turbo", "gpt-4")
 
+  Commands:
+
+    upgrade  - Upgrade cg executable to latest or given version.
+
   Environment variables:
 
     OPENAI_ACCESS_TOKEN  <value>  - OPENAI ACCESS TOKEN  

deps.ts

@@ -3,4 +3,8 @@ export {
   EnumType,
   ValidationError,
 } from "https://deno.land/x/[email protected]/command/mod.ts";
+export {
+  DenoLandProvider,
+  UpgradeCommand,
+} from "https://deno.land/x/[email protected]/command/upgrade/mod.ts";
 export { OpenAI } from "https://deno.land/x/[email protected]/mod.ts";