---
# nbd-m9q2
title: 'nbd init: add cache.db to .nbd/.gitignore'
status: todo
type: task
priority: normal
created_at: 2026-03-10T23:30:30Z
updated_at: 2026-03-10T23:30:30Z
---

## Problem

`.nbd/cache.db` is a Turso/libsql SQLite cache file created automatically by `list_tickets_cached`. It should never be committed to git. Currently `nbd init` does not create a `.gitignore` to exclude it.

## Implementation

**`src/main.rs`** — `cmd_init`

After `ensure_tickets_dir` succeeds, write (or append to) `.nbd/.gitignore`:

```
cache.db
```

Use idempotent logic: read the file if it exists, check whether `cache.db` is already listed, and only append/create if it is absent. This keeps `nbd init` safe to run multiple times.

Suggested helper (can be inline in `cmd_init`):
1. Read `.nbd/.gitignore` if it exists.
2. If `cache.db` is not a line in the file, append `cache.db\n`.
3. If the file does not exist, create it with `cache.db\n`.

The JSON output for `--json` should include a `gitignore` key indicating the path that was created/updated (or unchanged).

**`tests/integration.rs`**

Add a test that runs `nbd init` and asserts `.nbd/.gitignore` contains `cache.db`. Run `nbd init` a second time and assert the file is unchanged (idempotent).