events : instrumentation start/stop/run/install/update/uninstall/doctor/repl/shell (issue #3) - un evenement JSONL par action reelle, dry-run sans evenement, session id sur start, duree et exit code sur stop/run

src/events.rs

@@ -90,8 +90,8 @@ impl Event {
         self
     }
 
-    pub fn with_cwd(mut self, cwd: impl Into<String>) -> Self {
-        self.cwd = Some(cwd.into());
+    pub fn with_cwd(mut self, cwd: Option<String>) -> Self {
+        self.cwd = cwd;
         self
     }
 
@@ -209,6 +209,46 @@ pub fn read_events(dir: &Path, limit: usize) -> Vec<Event> {
     out
 }
 
+/// Append one event as a single JSON line to the journal file for the
+/// event's month (created under `dir`). Returns the file written to.
+/// Retries briefly when the file is locked (Windows).
+pub fn append(dir: &Path, event: &Event) -> anyhow::Result<PathBuf> {
+    let path = dir.join(file_name_for_month(&month_of(&event.ts)));
+    append_to(&path, event)?;
+    Ok(path)
+}
+
+/// Append one event to a specific journal file.
+pub fn append_to(path: &Path, event: &Event) -> anyhow::Result<()> {
+    if let Some(parent) = path.parent() {
+        let _ = std::fs::create_dir_all(parent);
+    }
+    let line = serde_json::to_string(event)?;
+    let mut last_err: Option<std::io::Error> = None;
+    for attempt in 0..5 {
+        match std::fs::OpenOptions::new().create(true).append(true).open(path) {
+            Ok(mut f) => {
+                f.write_all(line.as_bytes())?;
+                f.write_all(b"\n")?;
+                return Ok(());
+            }
+            Err(e) => {
+                last_err = Some(e);
+                if attempt < 4 {
+                    std::thread::sleep(std::time::Duration::from_millis(20 * (attempt + 1)));
+                }
+            }
+        }
+    }
+    Err(anyhow::anyhow!(
+        "cannot append to journal {}: {}",
+        path.display(),
+        last_err
+            .map(|e| e.to_string())
+            .unwrap_or_else(|| "unknown error".to_string())
+    ))
+}
+
 /// Append-only journal living in a directory (the state directory).
 pub struct EventLog {
     dir: PathBuf,
@@ -247,41 +287,11 @@ impl EventLog {
     }
 
     /// Append one event as a single JSON line; returns the file written to.
-    /// Retries briefly when the file is locked (Windows).
     pub fn append(&mut self, event: &Event) -> anyhow::Result<PathBuf> {
         let month = month_of(&event.ts);
         let path = self.file_for(&month);
-        if let Some(parent) = path.parent() {
-            let _ = std::fs::create_dir_all(parent);
-        }
-        let line = serde_json::to_string(event)?;
-        let mut last_err: Option<std::io::Error> = None;
-        for attempt in 0..5 {
-            match std::fs::OpenOptions::new()
-                .create(true)
-                .append(true)
-                .open(&path)
-            {
-                Ok(mut f) => {
-                    f.write_all(line.as_bytes())?;
-                    f.write_all(b"\n")?;
-                    return Ok(path);
-                }
-                Err(e) => {
-                    last_err = Some(e);
-                    if attempt < 4 {
-                        std::thread::sleep(std::time::Duration::from_millis(20 * (attempt + 1)));
-                    }
-                }
-            }
-        }
-        Err(anyhow::anyhow!(
-            "cannot append to journal {}: {}",
-            path.display(),
-            last_err
-                .map(|e| e.to_string())
-                .unwrap_or_else(|| "unknown error".to_string())
-        ))
+        append_to(&path, event)?;
+        Ok(path)
     }
 }