ev/
events.rs

1//! A local, append-only events log (results/events.jsonl) — the decision-data埋点 for
2//! metrics. Gitignored, 0-network, best-effort (a write failure never fails the command).
3use crate::store::Store;
4use serde_json::{json, Value};
5use std::io::Write;
6use time::{format_description::well_known::Rfc3339, OffsetDateTime};
7
8/// Append one event line: {ts, op, tick_id?, verdict?}.
9pub fn append(store: &Store, op: &str, tick_id: Option<&str>, verdict: Option<&str>) {
10    let ts = OffsetDateTime::now_utc()
11        .format(&Rfc3339)
12        .unwrap_or_default();
13    let mut e = json!({ "ts": ts, "op": op });
14    if let Some(o) = e.as_object_mut() {
15        if let Some(id) = tick_id {
16            o.insert("tick_id".into(), Value::String(id.into()));
17        }
18        if let Some(v) = verdict {
19            o.insert("verdict".into(), Value::String(v.into()));
20        }
21    }
22    let dir = store.root.join("results");
23    if std::fs::create_dir_all(&dir).is_err() {
24        return;
25    }
26    if let Ok(mut f) = std::fs::OpenOptions::new()
27        .create(true)
28        .append(true)
29        .open(dir.join("events.jsonl"))
30    {
31        let _ = writeln!(f, "{}", serde_json::to_string(&e).unwrap_or_default());
32    }
33}
ev/events.rs

ev/
events.rs
