54 lines
1.4 KiB
TypeScript
54 lines
1.4 KiB
TypeScript
/**
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* Git Checkpoint Extension
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*
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* Creates git stash checkpoints at each turn so /fork can restore code state.
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* When forking, offers to restore code to that point in history.
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*/
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import type { ExtensionAPI } from "@mariozechner/pi-coding-agent";
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export default function (pi: ExtensionAPI) {
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const checkpoints = new Map<string, string>();
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let currentEntryId: string | undefined;
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// Track the current entry ID when user messages are saved
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pi.on("tool_result", async (_event, ctx) => {
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const leaf = ctx.sessionManager.getLeafEntry();
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if (leaf) currentEntryId = leaf.id;
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});
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pi.on("turn_start", async () => {
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// Create a git stash entry before LLM makes changes
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const { stdout } = await pi.exec("git", ["stash", "create"]);
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const ref = stdout.trim();
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if (ref && currentEntryId) {
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checkpoints.set(currentEntryId, ref);
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}
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});
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pi.on("session_before_fork", async (event, ctx) => {
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const ref = checkpoints.get(event.entryId);
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if (!ref) return;
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if (!ctx.hasUI) {
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// In non-interactive mode, don't restore automatically
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return;
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}
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const choice = await ctx.ui.select("Restore code state?", [
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"Yes, restore code to that point",
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"No, keep current code",
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]);
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if (choice?.startsWith("Yes")) {
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await pi.exec("git", ["stash", "apply", ref]);
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ctx.ui.notify("Code restored to checkpoint", "info");
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}
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});
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pi.on("agent_end", async () => {
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// Clear checkpoints after agent completes
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checkpoints.clear();
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});
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}
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