feat: git 操作 clone 的 repo

Dockerfile

@@ -1,9 +1,9 @@
-FROM node:20-slim
+FROM alpine
 
-# force rebuild to ensure git is installed
-RUN apt-get update && apt-get install -y --no-install-recommends \
-    git \
-    && rm -rf /var/lib/apt/lists/*
+RUN apk add --no-cache bash nodejs npm git \
+    && node --version \
+    && npm --version \
+    && git --version
 
 WORKDIR /action
 

app/git.js

@@ -1,4 +1,5 @@
 import { spawnSync } from 'child_process';
+import fs from 'fs';
 import path from 'path';
 import { GITEA_SERVER_URL, GITEA_REPOSITORY, GITEA_TOKEN, PR_HEAD_BRANCH, FINDINGS_PATH } from './config.js';
 
@@ -10,14 +11,28 @@ function git(args, cwd) {
 }
 
 export async function commitAndPush(workspace) {
-  const repoDir = path.join(workspace, GITEA_REPOSITORY);
-  const remoteUrl = GITEA_SERVER_URL.replace(/\/$/, '').replace('https://', `https://${GITEA_TOKEN}@`).replace('http://', `http://${GITEA_TOKEN}@`) + `/${GITEA_REPOSITORY}.git`;
+  const remoteUrl = GITEA_SERVER_URL.replace(/\/$/, '')
+    .replace('https://', `https://${GITEA_TOKEN}@`)
+    .replace('http://', `http://${GITEA_TOKEN}@`) + `/${GITEA_REPOSITORY}.git`;
+
+  const repoDir = path.join(workspace, 'repo');
 
   try {
+    if (!fs.existsSync(repoDir)) {
+      git(['clone', '--depth=1', '--branch', PR_HEAD_BRANCH, remoteUrl, repoDir], workspace);
+    }
+
     git(['config', 'user.email', 'ai-review[bot]@gitea'], repoDir);
     git(['config', 'user.name', 'AI Review Bot'], repoDir);
     git(['fetch', 'origin', PR_HEAD_BRANCH], repoDir);
     git(['checkout', PR_HEAD_BRANCH], repoDir);
+
+    // 將 findings.json 從 workspace 複製到 clone 的 repo
+    const srcFindings = path.join(workspace, FINDINGS_PATH);
+    const destFindings = path.join(repoDir, FINDINGS_PATH);
+    fs.mkdirSync(path.dirname(destFindings), { recursive: true });
+    fs.copyFileSync(srcFindings, destFindings);
+
     git(['add', FINDINGS_PATH], repoDir);
 
     const status = git(['status', '--porcelain'], repoDir);