1 files changed, 36 insertions, 29 deletions
diff --git a/pkgs/by-name/ts/tskm/src/interface/open/handle.rs b/pkgs/by-name/ts/tskm/src/interface/open/handle.rs
index 836d9ce7..4d7341b2 100644
--- a/pkgs/by-name/ts/tskm/src/interface/open/handle.rs
+++ b/pkgs/by-name/ts/tskm/src/interface/open/handle.rs
@@ -159,38 +159,45 @@ fn open_in_browser(
         if let Some(url) = url {
             args.push(url.to_string());
         } else {
-            let (ip, pid): (IpAddr, u32) = {
-                let link = fs::read_link(
-                    dirs::home_dir()
-                        .expect("Exists")
-                        .join(".mozilla/firefox")
-                        .join(selected_project.to_project_display())
-                        .join("lock"),
-                )?;
-                let (ip, pid) = link
-                    .to_str()
-                    .expect("Should work")
-                    .split_once(':')
-                    .expect("The split works");
-
-                (
-                    ip.parse().expect("Should be a valid ip address"),
-                    pid.parse().expect("Should be a valid pid"),
-                )
-            };
+            let lock_file = dirs::home_dir()
+                .expect("Exists")
+                .join(".mozilla/firefox")
+                .join(selected_project.to_project_display())
+                .join("lock");
+
+            if lock_file.exists() {
+                let (ip, pid): (IpAddr, u32) = {
+                    let link = fs::read_link(&lock_file).with_context(|| {
+                        format!("Failed to readlink lock at '{}'", lock_file.display())
+                    })?;
 
-            if ip != Ipv4Addr::new(127, 0, 0, 2) {
-                warn!("Your ip is weird..");
-            }
+                    let (ip, pid) = link
+                        .to_str()
+                        .expect("Should work")
+                        .split_once(':')
+                        .expect("The split works");
 
-            if PathBuf::from("/proc").join(pid.to_string()).exists() {
-                // Another Firefox instance has already been started for this project
-                // Add a buffer URL to force Firefox to open it in the already open instance
-                args.push("about:newtab".to_owned());
+                    (
+                        ip.parse().expect("Should be a valid ip address"),
+                        pid.parse().expect("Should be a valid pid"),
+                    )
+                };
+
+                if ip != Ipv4Addr::new(127, 0, 0, 2) {
+                    warn!("Your ip is weird..");
+                }
+
+                if PathBuf::from("/proc").join(pid.to_string()).exists() {
+                    // Another Firefox instance has already been started for this project
+                    // Add a buffer URL to force Firefox to open it in the already open instance
+                    args.push("about:newtab".to_owned());
+                } else {
+                    // This project does not yet have another Firefox instance
+                    // We do not need to add anything to the arguments, Firefox will open a new
+                    // instance.
+                }
             } else {
-                // This project does not yet have another Firefox instance
-                // We do not need to add anything to the arguments, Firefox will open a new
-                // instance.
+                // There is no lock file and thus no instance already open.
             }
         };