mac
235 lines
7.7 KiB
JavaScript
235 lines
7.7 KiB
JavaScript
// sessions.js —— 读取 / 解析 / 导出 / 备份 / 导入 Codex 会话记录。
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// 直接读 ~/.codex/sessions / archived_sessions 下的 rollout-*.jsonl，不依赖数据库，跨平台。
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const fs = require("fs");
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const path = require("path");
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const os = require("os");
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const CODEX_HOME = path.join(os.homedir(), ".codex");
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const SESSIONS_DIR = path.join(CODEX_HOME, "sessions");
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const ARCHIVED_SESSIONS_DIR = path.join(CODEX_HOME, "archived_sessions");
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const SESSION_INDEX = path.join(CODEX_HOME, "session_index.jsonl");
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// 递归找出所有 rollout-*.jsonl
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function findRolloutFiles(base) {
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const out = [];
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function walk(dir) {
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let ents;
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try {
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ents = fs.readdirSync(dir, { withFileTypes: true });
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} catch {
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return;
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}
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for (const ent of ents) {
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const full = path.join(dir, ent.name);
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if (ent.isDirectory()) walk(full);
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else if (ent.isFile() && ent.name.startsWith("rollout-") && ent.name.endsWith(".jsonl")) out.push(full);
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}
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}
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walk(base);
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return out;
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}
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// 读取 session_index.jsonl，得到 {会话id: Codex 生成的标题}
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function loadIndexTitles() {
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const map = {};
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try {
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const txt = fs.readFileSync(SESSION_INDEX, "utf-8");
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for (const line of txt.split("\n")) {
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if (!line.trim()) continue;
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try {
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const d = JSON.parse(line);
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if (d.id && d.thread_name) map[d.id] = d.thread_name;
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} catch {}
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}
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} catch {}
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return map;
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}
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// 只读文件开头一段，快速取元信息与首条用户消息（避免整读大文件）
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function peekMeta(file) {
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let head = "";
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try {
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const fd = fs.openSync(file, "r");
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const buf = Buffer.alloc(262144); // 256KB：足够越过超长系统提示找到首条用户消息
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const n = fs.readSync(fd, buf, 0, buf.length, 0);
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fs.closeSync(fd);
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head = buf.slice(0, n).toString("utf-8");
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} catch {
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return null;
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}
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const meta = { id: "", cwd: "", ts: "", source: "", threadSource: "", provider: "", title: "" };
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const lines = head.split("\n");
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for (const line of lines) {
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if (!line.trim()) continue;
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let d;
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try {
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d = JSON.parse(line);
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} catch {
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continue; // 可能是被截断的最后一行
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}
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const p = d.payload || {};
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if (d.type === "session_meta") {
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meta.id = p.session_id || p.id || "";
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meta.cwd = p.cwd || "";
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meta.ts = p.timestamp || d.timestamp || "";
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meta.source = p.source || "";
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meta.threadSource = p.thread_source || "";
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meta.provider = p.model_provider || "";
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} else if (d.type === "event_msg" && p.type === "user_message" && !meta.title) {
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meta.title = String(p.message || "").replace(/\s+/g, " ").trim().slice(0, 60);
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}
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if (meta.id && meta.title) break;
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}
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return meta;
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}
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function normalizeListOptions(opts) {
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if (typeof opts === "boolean") return { includeSubagent: opts, includeArchived: false };
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return {
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includeSubagent: !!(opts && opts.includeSubagent),
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includeArchived: !!(opts && opts.includeArchived),
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};
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}
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// 列出会话（默认只列当前 sessions，并排除子 agent 派生线程；全量模式会带 archived_sessions）
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function listConversations(opts = {}) {
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const { includeSubagent, includeArchived } = normalizeListOptions(opts);
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const roots = [{ dir: SESSIONS_DIR, archived: false }];
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if (includeArchived) roots.push({ dir: ARCHIVED_SESSIONS_DIR, archived: true });
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const titles = loadIndexTitles();
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const items = [];
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for (const root of roots) {
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const files = findRolloutFiles(root.dir);
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for (const file of files) {
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const m = peekMeta(file);
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if (!m) continue;
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if (!includeSubagent && m.threadSource === "subagent") continue;
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let size = 0;
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try {
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size = fs.statSync(file).size;
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} catch {}
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items.push({
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id: m.id,
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title: titles[m.id] || m.title || "(无标题对话)",
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project: m.cwd ? path.basename(m.cwd) : "",
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cwd: m.cwd,
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ts: m.ts,
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source: m.source,
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threadSource: m.threadSource,
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provider: m.provider,
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path: file,
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size,
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archived: root.archived,
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});
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}
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}
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items.sort((a, b) => (b.ts || "").localeCompare(a.ts || ""));
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return items;
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}
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// 解析单个会话文件为可读消息列表
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function readConversation(file) {
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const messages = [];
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let meta = {};
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let content;
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try {
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content = fs.readFileSync(file, "utf-8");
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} catch (e) {
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return { meta, messages, error: String(e) };
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}
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for (const line of content.split("\n")) {
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if (!line.trim()) continue;
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let d;
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try {
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d = JSON.parse(line);
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} catch {
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continue;
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}
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const p = d.payload || {};
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const ts = d.timestamp || "";
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if (d.type === "session_meta") {
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meta = { id: p.session_id || p.id || "", cwd: p.cwd || "", ts: p.timestamp || ts, provider: p.model_provider || "" };
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} else if (d.type === "event_msg" && p.type === "user_message") {
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messages.push({ role: "user", text: String(p.message || ""), ts });
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} else if (d.type === "event_msg" && p.type === "agent_message") {
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messages.push({ role: "assistant", text: String(p.message || ""), ts });
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} else if (d.type === "response_item" && p.type === "function_call") {
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const name = p.name || "tool";
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messages.push({ role: "tool", text: `调用工具：${name}`, ts, collapsed: true });
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}
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}
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return { meta, messages };
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}
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// 导出为 Markdown 文本
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function toMarkdown(item, conv) {
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const lines = [];
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lines.push(`# ${item.title || "Codex 会话记录"}`);
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lines.push("");
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if (item.project) lines.push(`- 项目：${item.project}`);
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if (item.cwd) lines.push(`- 目录：${item.cwd}`);
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if (item.ts) lines.push(`- 时间：${item.ts}`);
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if (item.provider) lines.push(`- Provider：${item.provider}`);
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lines.push("");
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lines.push("---");
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lines.push("");
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for (const m of conv.messages) {
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if (m.role === "user") lines.push(`## 👤 用户\n\n${m.text}\n`);
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else if (m.role === "assistant") lines.push(`## 🤖 Codex\n\n${m.text}\n`);
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else if (m.role === "tool") lines.push(`> 🔧 ${m.text}\n`);
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}
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return lines.join("\n");
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}
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// 备份：把整个 sessions/ 与索引复制到目标目录下的 codex-sessions-backup/
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function backupAll(destDir, log = () => {}) {
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const out = path.join(destDir, "codex-sessions-backup");
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fs.mkdirSync(out, { recursive: true });
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const files = findRolloutFiles(SESSIONS_DIR);
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let n = 0;
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for (const f of files) {
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const rel = path.relative(SESSIONS_DIR, f);
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const dst = path.join(out, "sessions", rel);
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fs.mkdirSync(path.dirname(dst), { recursive: true });
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fs.copyFileSync(f, dst);
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n++;
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}
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if (fs.existsSync(SESSION_INDEX)) fs.copyFileSync(SESSION_INDEX, path.join(out, "session_index.jsonl"));
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log(`已备份 ${n} 个会话文件到 ${out}`);
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return { path: out, count: n };
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}
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// 导入：把外部备份目录里的 rollout-*.jsonl 合并进本机 sessions/（按原年月日结构，已存在则跳过）
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function importSessions(srcDir, log = () => {}) {
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// 支持传入 backup 根目录或其中的 sessions/ 子目录
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let base = srcDir;
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if (fs.existsSync(path.join(srcDir, "sessions"))) base = path.join(srcDir, "sessions");
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const files = findRolloutFiles(base);
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let added = 0;
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let skipped = 0;
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for (const f of files) {
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const rel = path.relative(base, f);
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const dst = path.join(SESSIONS_DIR, rel);
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if (fs.existsSync(dst)) {
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skipped++;
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continue;
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}
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fs.mkdirSync(path.dirname(dst), { recursive: true });
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fs.copyFileSync(f, dst);
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added++;
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}
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log(`导入完成：新增 ${added} 个，跳过 ${skipped} 个（已存在）`);
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return { added, skipped };
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}
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module.exports = {
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CODEX_HOME,
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SESSIONS_DIR,
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ARCHIVED_SESSIONS_DIR,
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listConversations,
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readConversation,
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toMarkdown,
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backupAll,
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importSessions,
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};
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