feat: add lock to avoid race condition on abbs repo

Author: jiegec

server/src/api.rs

@@ -1,8 +1,5 @@
 use crate::{
-    github::get_crab_github_installation,
-    github::get_packages_from_pr,
-    models::{NewJob, NewPipeline, Pipeline, Worker},
-    DbPool, ALL_ARCH, ARGS,
+    github::{get_crab_github_installation, get_packages_from_pr}, models::{NewJob, NewPipeline, Pipeline, Worker}, DbPool, ABBS_REPO_LOCK, ALL_ARCH, ARGS
 };
 use anyhow::anyhow;
 use anyhow::Context;
@@ -76,6 +73,7 @@ pub async fn pipeline_new(
             git_sha.to_string()
         }
         None => {
+            let _lock = ABBS_REPO_LOCK.lock().await;
             update_abbs(git_branch, &ARGS.abbs_path)
                 .await
                 .context("Failed to update ABBS tree")?;
@@ -198,6 +196,7 @@ pub async fn pipeline_new_pr(
                 return Err(anyhow!("Failed to create job: Pull request is a fork"));
             }
 
+            let _lock = ABBS_REPO_LOCK.lock().await;
             update_abbs(git_branch, &ARGS.abbs_path)
                 .await
                 .context("Failed to update ABBS tree")?;

server/src/lib.rs

@@ -51,6 +51,7 @@ pub struct Args {
 }
 
 pub static ARGS: Lazy<Args> = Lazy::new(Args::parse);
+pub static ABBS_REPO_LOCK: Lazy<tokio::sync::Mutex<()>> = Lazy::new(tokio::sync::Mutex::new);
 
 // follow https://github.com/AOSC-Dev/autobuild3/blob/master/sets/arch_groups/mainline
 pub(crate) const ALL_ARCH: &[&str] = &[