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feat(FN-4935): complete Step 1 — structured liveness classifier

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Ref: Runfusion/Fusion#601
Fusion-Task-Id: FN-4935
Fusion-Task-Lineage: 8c842b69-1427-47be-9ba5-8ec66449cc7c
This commit is contained in:
Fusion (runfusion.ai)
2026-05-17 14:22:09 -07:00
committed by gsxdsm
parent eba4eb5161
commit 0f69412c20
3 changed files with 107 additions and 13 deletions
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33
packages/engine/src/worktree-pool.ts
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@@ -91,28 +91,34 @@ export async function isGitRepository(dir: string): Promise<boolean> {
}
}
export async function getRegisteredWorktreePaths(rootDir: string): Promise<Set<string>> {
export async function describeRegisteredWorktrees(rootDir: string): Promise<{ rawOutput: string; canonicalized: string[] }> {
try {
const result = await execAsync("git worktree list --porcelain", {
cwd: rootDir,
encoding: "utf-8",
timeout: 10_000,
maxBuffer: 10 * 1024 * 1024,
});
const stdout = getExecStdout(result);
const paths = new Set<string>();
const canonicalized: string[] = [];
for (const line of stdout.split("\n")) {
if (line.startsWith("worktree ")) {
paths.add(canonicalizePath(line.slice("worktree ".length)));
canonicalized.push(canonicalizePath(line.slice("worktree ".length)));
}
}
return paths;
} catch (err: unknown) {
const errorMessage = err instanceof Error ? err.message : String(err);
worktreePoolLog.warn(`Failed to list registered worktrees: ${errorMessage}`);
return new Set();
return { rawOutput: stdout, canonicalized };
} catch {
return { rawOutput: "", canonicalized: [] };
}
}
export async function getRegisteredWorktreePaths(rootDir: string): Promise<Set<string>> {
const { canonicalized } = await describeRegisteredWorktrees(rootDir);
return new Set(canonicalized);
}
export async function isRegisteredGitWorktree(rootDir: string, worktreePath: string): Promise<boolean> {
return (await getRegisteredWorktreePaths(rootDir)).has(canonicalizePath(worktreePath));
}
@@ -135,9 +141,11 @@ export async function isInsideGitWorkTree(worktreePath: string): Promise<boolean
}
}
export type TaskWorktreeClassification = "missing" | "incomplete" | "unregistered" | "outside-work-tree";
export type TaskWorktreeClassificationResult =
| { ok: true }
| { ok: false; classification: "missing" | "incomplete" | "unregistered"; reason: string };
| { ok: false; classification: TaskWorktreeClassification; reason: string };
/**
* Language-agnostic liveness/classification gate for task worktrees.
@@ -146,12 +154,15 @@ export async function classifyTaskWorktree(rootDir: string, worktreePath: string
if (!existsSync(worktreePath)) {
return { ok: false, classification: "missing", reason: "worktree directory does not exist" };
}
if (!hasRequiredWorktreeFiles(worktreePath) || !await isInsideGitWorkTree(worktreePath)) {
return { ok: false, classification: "incomplete", reason: "missing or invalid .git metadata" };
if (!hasRequiredWorktreeFiles(worktreePath)) {
return { ok: false, classification: "incomplete", reason: "missing .git metadata" };
}
if (!await isRegisteredGitWorktree(rootDir, worktreePath)) {
return { ok: false, classification: "unregistered", reason: "not registered in git worktree list" };
}
if (!await isInsideGitWorkTree(worktreePath)) {
return { ok: false, classification: "outside-work-tree", reason: "git rev-parse --is-inside-work-tree returned false" };
}
return { ok: true };
}