Add support for parsing the flake.lock.

src/nix_util/running_build.rs

@@ -26,14 +26,16 @@ pub(crate) struct RunningBuild<'db> {
     db_handle: &'db DbHandle,
     activity_tree: ActivityTreeStream,
     last_announce: Option<Instant>,
+    build_id: i64,
 }
 
 impl<'db> RunningBuild<'db> {
-    pub(crate) fn new(db_handle: &'db DbHandle) -> Result<Self> {
+    pub(crate) fn new(db_handle: &'db DbHandle, build_id: i64) -> Result<Self> {
         Ok(RunningBuild {
             db_handle,
             activity_tree: ActivityTreeStream::new(),
             last_announce: None,
+            build_id,
         })
     }
 
@@ -45,16 +47,6 @@ impl<'db> RunningBuild<'db> {
     where
         TN: AsRef<str>,
     {
-        let foo = SystemTime::now().duration_since(SystemTime::UNIX_EPOCH)?;
-        let now = Instant::now();
-        let build_id: i64 = sqlx::query(
-            r#"INSERT INTO build (start_time, target) SELECT unixepoch('now'), ? RETURNING id"#,
-        )
-        .bind(target_name.as_ref())
-        .fetch_one(&self.db_handle.conn)
-        .await?
-        .try_get("id")?;
-
         let output_stream = OutputStream::from_child(&mut child)?;
         let mut nix_output_stream: NixOutputStream<OutputStream> =
             NixOutputStream::new(output_stream);
@@ -81,7 +73,7 @@ impl<'db> RunningBuild<'db> {
                         .code()
                         .expect("Process should have an exit code."),
                 )
-                .bind(build_id)
+                .bind(self.build_id)
                 .execute(&self.db_handle.conn)
                 .await?
                 .rows_affected();