functionally complete

Author: annajowang

packages/@apphosting/adapter-nextjs/src/utils.ts

@@ -12,7 +12,7 @@ import {
   MiddlewareManifest,
 } from "./interfaces.js";
 import { NextConfigComplete } from "next/dist/server/config-shared.js";
-import { OutputBundleConfig } from "@apphosting/common";
+import { OutputBundleConfig, UpdateOrCreateGitignore } from "@apphosting/common";
 
 // fs-extra is CJS, readJson can't be imported using shorthand
 export const { copy, exists, writeFile, readJson, readdir, readFileSync, existsSync, ensureDir } =
@@ -203,6 +203,7 @@ async function generateBundleYaml(
   }
 
   await writeFile(opts.bundleYamlPath, yamlStringify(outputBundle));
+  UpdateOrCreateGitignore(cwd, ["/.apphosting/"]);
   return;
 }
 

packages/@apphosting/common/src/index.ts

@@ -1,4 +1,7 @@
 import { spawn } from "child_process";
+import * as path from "node:path";
+import * as fs from "fs-extra";
+
 
 // Output bundle metadata specifications to be written to bundle.yaml
 export interface OutputBundleConfig {
@@ -139,3 +142,27 @@ export function getBuildOptions(): BuildOptions {
     projectDirectory: process.cwd(),
   };
 }
+
+
+/**
+ * Updates or creates a .gitignore file with the given entries in the given path
+ */
+export function UpdateOrCreateGitignore(dirPath: string, entries: string[]) {
+  const gitignorePath = path.join(dirPath, ".gitignore");
+
+  if (!fs.existsSync(gitignorePath)) {
+    console.log(`creating ${gitignorePath} with entries: ${entries.join("\n")}`);
+    fs.writeFileSync(gitignorePath, entries.join("\n"));
+    return;
+  }
+
+  let content = fs.readFileSync(gitignorePath, "utf-8");
+  for (const entry of entries) {
+    if (!content.includes(entry)) {
+      console.log(`adding ${entry} to ${gitignorePath}`);
+      content += `\n${entry}\n`;
+    }
+  }
+
+  fs.writeFileSync(gitignorePath, content);
+}