feat(ai-pull-request): 以 opencode 分析 diff 自動產生並建立 Pull Request

2026-06-26 11:42:05 +08:00
parent 5db3b328a2
commit d42ccd8b08
10 changed files with 887 additions and 27 deletions
@@ -0,0 +1,81 @@
+import { log } from './util.js';
+
+/**
+ * 從環境變數讀取並驗證所有輸入參數。
+ *
+ * @returns {{
+ *   serverUrl: string,
+ *   repository: string,
+ *   owner: string,
+ *   repo: string,
+ *   token: string,
+ *   sourceBranch: string,
+ *   targetBranch: string,
+ *   opencode: { baseUrl: string, model: string, provider: string },
+ *   language: string,
+ *   maxDiffChars: number,
+ *   workspace: string,
+ * }}
+ */
+export function loadInputs() {
+  const serverUrl = trimSlash(required('GITEA_SERVER_URL'));
+  const repository = required('GITEA_REPOSITORY'); // owner/repo
+  const token = required('GITEA_TOKEN');
+  const sourceBranch = required('SOURCE_BRANCH');
+  const targetBranch = required('TARGET_BRANCH');
+
+  const [owner, repo] = repository.split('/');
+  if (!owner || !repo) {
+    throw new Error(`GITEA_REPOSITORY 格式應為 owner/repo，收到: ${repository}`);
+  }
+
+  if (sourceBranch === targetBranch) {
+    throw new Error(`來源分支與目標分支不可相同: ${sourceBranch}`);
+  }
+
+  const opencode = {
+    baseUrl: trimSlash(process.env.OPENCODE_BASE_URL || ''),
+    model: process.env.OPENCODE_MODEL || '',
+    provider: process.env.OPENCODE_PROVIDER || '',
+  };
+
+  // PR 標題/描述固定使用繁體中文，diff 截斷上限固定，皆不透過參數控制
+  const language = 'Traditional Chinese (繁體中文)';
+  const maxDiffChars = 60000;
+  const workspace = process.env.GITHUB_WORKSPACE || process.cwd();
+
+  return {
+    serverUrl,
+    repository,
+    owner,
+    repo,
+    token,
+    sourceBranch,
+    targetBranch,
+    opencode,
+    language,
+    maxDiffChars,
+    workspace,
+  };
+}
+
+function required(name) {
+  const value = process.env[name];
+  if (!value || !value.trim()) {
+    throw new Error(`缺少必要的環境變數: ${name}`);
+  }
+  return value.trim();
+}
+
+function trimSlash(url) {
+  return url.replace(/\/+$/, '');
+}
+
+/** 印出輸入摘要（遮蔽敏感資訊）。 */
+export function logInputs(inputs) {
+  log.info(`Gitea Server : ${inputs.serverUrl}`);
+  log.info(`Repository   : ${inputs.repository}`);
+  log.info(`來源分支     : ${inputs.sourceBranch}`);
+  log.info(`目標分支     : ${inputs.targetBranch}`);
+  log.info(`opencode     : provider=${inputs.opencode.provider || '(未設定)'} model=${inputs.opencode.model || '(未設定)'} baseUrl=${inputs.opencode.baseUrl || '(未設定)'}`);
+}