feat: added min duaration checking in RepositorConfig

 Changes to be committed:
	modified:   src/bors/event.rs
	modified:   src/bors/handlers/workflow.rs
	modified:   src/config.rs
	modified:   src/github/webhook.rs

src/bors/event.rs

@@ -1,5 +1,6 @@
 use crate::database::{WorkflowStatus, WorkflowType};
 use crate::github::{CommitSha, GithubRepoName, GithubUser, PullRequest, PullRequestNumber};
+use chrono::Duration;
 use octocrab::models::RunId;
 
 #[derive(Debug)]
@@ -88,6 +89,7 @@ pub struct WorkflowCompleted {
     pub commit_sha: CommitSha,
     pub run_id: RunId,
     pub status: WorkflowStatus,
+    pub running_time: Option<Duration>,
 }
 
 #[derive(Debug)]

src/bors/handlers/workflow.rs

@@ -1,4 +1,5 @@
 use std::sync::Arc;
+use std::time::Duration;
 
 use crate::bors::comment::try_build_succeeded_comment;
 use crate::bors::event::{CheckSuiteCompleted, WorkflowCompleted, WorkflowStarted};
@@ -61,12 +62,29 @@ pub(super) async fn handle_workflow_started(
 pub(super) async fn handle_workflow_completed(
     repo: Arc<RepositoryState>,
     db: Arc<PgDbClient>,
-    payload: WorkflowCompleted,
+    mut payload: WorkflowCompleted,
 ) -> anyhow::Result<()> {
     if !is_bors_observed_branch(&payload.branch) {
         return Ok(());
     }
 
+    if let Some(running_time) = payload.running_time {
+        let running_time_as_duration =
+            chrono::Duration::to_std(&running_time).unwrap_or(Duration::from_secs(0));
+        if let Some(min_ci_time) = repo.config.load().min_ci_time {
+            if running_time_as_duration < min_ci_time {
+                payload.status = WorkflowStatus::Failure;
+                tracing::warn!(
+                    "Workflow running time is less than the minimum CI duration: {:?} < {:?}",
+                    running_time_as_duration,
+                    min_ci_time
+                );
+            }
+        }
+    } else {
+        tracing::warn!("Running time is not available.");
+    }
+
     tracing::info!("Updating status of workflow to {:?}", payload.status);
     db.update_workflow_status(*payload.run_id, payload.status)
         .await?;

src/config.rs

@@ -19,12 +19,23 @@ pub struct RepositoryConfig {
     pub timeout: Duration,
     #[serde(default, deserialize_with = "deserialize_labels")]
     pub labels: HashMap<LabelTrigger, Vec<LabelModification>>,
+    #[serde(default, deserialize_with = "deserialize_duration_from_secs_opt")]
+    pub min_ci_time: Option<Duration>,
 }
 
 fn default_timeout() -> Duration {
     Duration::from_secs(3600)
 }
 
+fn deserialize_duration_from_secs_opt<'de, D>(deserializer: D) -> Result<Option<Duration>, D::Error>
+where
+    D: Deserializer<'de>,
+{
+    // Allow null values for the option
+    let maybe_seconds = Option::<u64>::deserialize(deserializer)?;
+    Ok(maybe_seconds.map(Duration::from_secs))
+}
+
 fn deserialize_duration_from_secs<'de, D>(deserializer: D) -> Result<Duration, D::Error>
 where
     D: Deserializer<'de>,
@@ -124,7 +135,7 @@ where
 
 #[cfg(test)]
 mod tests {
-    use std::collections::BTreeMap;
+    use std::{collections::BTreeMap, time::Duration};
 
     use crate::config::{default_timeout, RepositoryConfig};
 
@@ -142,6 +153,20 @@ mod tests {
         assert_eq!(config.timeout.as_secs(), 3600);
     }
 
+    #[test]
+    fn deserialize_min_ci_time_empty() {
+        let content = "";
+        let config = load_config(content);
+        assert_eq!(config.min_ci_time, None);
+    }
+
+    #[test]
+    fn deserialize_min_ci_time() {
+        let content = "min_ci_time = 3600";
+        let config = load_config(content);
+        assert_eq!(config.min_ci_time, Some(Duration::from_secs(3600)));
+    }
+
     #[test]
     fn deserialize_labels() {
         let content = r#"[labels]

src/github/webhook.rs

@@ -273,18 +273,29 @@ fn parse_workflow_run_events(body: &[u8]) -> anyhow::Result<Option<BorsEvent>> {
                 url: payload.workflow_run.html_url.into(),
             },
         ))),
-        "completed" => Some(BorsEvent::Repository(
-            BorsRepositoryEvent::WorkflowCompleted(WorkflowCompleted {
-                repository: repository_name,
-                branch: payload.workflow_run.head_branch,
-                commit_sha: CommitSha(payload.workflow_run.head_sha),
-                run_id: RunId(payload.workflow_run.id.0),
-                status: match payload.workflow_run.conclusion.unwrap_or_default().as_str() {
-                    "success" => WorkflowStatus::Success,
-                    _ => WorkflowStatus::Failure,
-                },
-            }),
-        )),
+        "completed" => {
+            let running_time = if let (Some(started_at), Some(completed_at)) = (
+                Some(payload.workflow_run.created_at),
+                Some(payload.workflow_run.updated_at),
+            ) {
+                Some(completed_at - started_at)
+            } else {
+                None
+            };
+            Some(BorsEvent::Repository(
+                BorsRepositoryEvent::WorkflowCompleted(WorkflowCompleted {
+                    repository: repository_name,
+                    branch: payload.workflow_run.head_branch,
+                    commit_sha: CommitSha(payload.workflow_run.head_sha),
+                    run_id: RunId(payload.workflow_run.id.0),
+                    running_time,
+                    status: match payload.workflow_run.conclusion.unwrap_or_default().as_str() {
+                        "success" => WorkflowStatus::Success,
+                        _ => WorkflowStatus::Failure,
+                    },
+                }),
+            ))
+        }
         _ => None,
     };
     Ok(result)
@@ -774,6 +785,12 @@ mod tests {
                                 4900979072,
                             ),
                             status: Failure,
+                            running_time: Some(
+                                TimeDelta {
+                                    secs: 13,
+                                    nanos: 0,
+                                },
+                            ),
                         },
                     ),
                 ),