nix: attempt to fix VM tests; general cleanup

Signed-off-by: NotAShelf <raf@notashelf.dev>
Change-Id: I65f6909ef02ab4599f5b0bbc0930367e6a6a6964

crates/common/src/models.rs

@@ -48,6 +48,7 @@ pub struct Evaluation {
 }
 
 #[derive(Debug, Clone, PartialEq, Eq, Serialize, Deserialize, sqlx::Type)]
+#[serde(rename_all = "lowercase")]
 #[sqlx(type_name = "text", rename_all = "lowercase")]
 pub enum EvaluationStatus {
   Pending,
@@ -121,6 +122,7 @@ pub struct Build {
 }
 
 #[derive(Debug, Clone, Serialize, Deserialize, sqlx::Type, PartialEq, Eq)]
+#[serde(rename_all = "lowercase")]
 #[sqlx(type_name = "text", rename_all = "lowercase")]
 pub enum BuildStatus {
   Pending,

crates/common/src/repo/evaluations.rs

@@ -170,3 +170,20 @@ pub async fn count(pool: &PgPool) -> Result<i64> {
     .map_err(CiError::Database)?;
   Ok(row.0)
 }
+
+/// Get an evaluation by jobset_id and commit_hash.
+pub async fn get_by_jobset_and_commit(
+  pool: &PgPool,
+  jobset_id: Uuid,
+  commit_hash: &str,
+) -> Result<Option<Evaluation>> {
+  sqlx::query_as::<_, Evaluation>(
+    "SELECT * FROM evaluations WHERE jobset_id = $1 AND commit_hash = $2 \
+     ORDER BY evaluation_time DESC LIMIT 1",
+  )
+  .bind(jobset_id)
+  .bind(commit_hash)
+  .fetch_optional(pool)
+  .await
+  .map_err(CiError::Database)
+}