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feat(codex): allow historical forks while a turn is running (#2185)

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* feat(codex): allow historical forks while a turn is running

* fix(web): fork user-only completed turns during generation
This commit is contained in:
Ananovo
2026-10-28 12:15:11 +08:00
committed by GitHub
parent 575e995480
commit 009e6d7799
14 changed files with 519 additions and 13 deletions
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cli/src/codex/shared/root.ts
+10 -2
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@@ -535,10 +535,18 @@ export class SharedCodexRoot {
});
rpc.registerHandler(RPC_METHODS.ForkConversation, async raw => {
const { messageLocalId } = z.object({ messageLocalId: z.string().optional() }).parse(raw);
if (this.currentTurn) throw new Error('Session is busy');
if (this.currentTurn && !messageLocalId) throw new Error('Session is busy');
const beforeTurnId = messageLocalId ? this.projection.turnFor(messageLocalId) : undefined;
if (messageLocalId && !beforeTurnId) throw new Error('No native history point for this message');
if (messageLocalId) await this.assertBoundary(messageLocalId, beforeTurnId!);
if (messageLocalId) {
const thread = await this.assertBoundary(messageLocalId, beforeTurnId!);
const turns = (Array.isArray(thread.turns) ? thread.turns : []).map(record);
const index = turns.findIndex(turn => turn.id === beforeTurnId);
if (index < 0 || turns.slice(0, index + 1).some(turn =>
!['completed', 'interrupted', 'failed'].includes(string(turn.status) ?? ''))) {
throw new Error('Historical fork requires a completed turn and history prefix');
}
}
const child = await this.host.create('thread/fork', { ...this.freshParams(), threadId: this.threadId,
...(beforeTurnId ? { beforeTurnId } : {}) }, this);
await child.initialSettings({ collaborationMode: this.settings.collaborationMode });