Better pid error messages

CHANGELOG.md

@@ -8,7 +8,8 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 
 ### Fixed
 
-- Support parameter parsing for signal names with capslock (`SIGINT`) and short name (`INT`|`int`). [#455](https://github.com/Nukesor/pueue/issues/455).
+- Support parameter parsing for signal names with capslock (`SIGINT`) and short name (`INT`|`int`). [#455](https://github.com/Nukesor/pueue/issues/455)
+- Better error messages for pid related I/O errors. [#466](https://github.com/Nukesor/pueue/issues/466)
 
 ### Changed
 

pueue/src/daemon/pid.rs

@@ -11,11 +11,11 @@ use pueue_lib::process_helper::process_exists;
 /// Read a PID file and throw an error, if another daemon instance is still running.
 fn check_for_running_daemon(pid_path: &Path) -> Result<()> {
     info!("Placing pid file at {pid_path:?}");
-    let mut file =
-        File::open(pid_path).map_err(|err| Error::IoError("opening pid file".to_string(), err))?;
+    let mut file = File::open(pid_path)
+        .map_err(|err| Error::IoPathError(pid_path.to_path_buf(), "opening pid file", err))?;
     let mut pid = String::new();
     file.read_to_string(&mut pid)
-        .map_err(|err| Error::IoError("reading pid file".to_string(), err))?;
+        .map_err(|err| Error::IoPathError(pid_path.to_path_buf(), "reading pid file", err))?;
 
     let pid: u32 = pid
         .parse()
@@ -40,18 +40,17 @@ pub fn create_pid_file(pid_path: &Path) -> Result<()> {
         check_for_running_daemon(pid_path)?;
     }
     let mut file = File::create(pid_path)
-        .map_err(|err| Error::IoError("creating pid file".to_string(), err))?;
+        .map_err(|err| Error::IoPathError(pid_path.to_path_buf(), "creating pid file", err))?;
 
     file.write_all(std::process::id().to_string().as_bytes())
-        .map_err(|err| Error::IoError("writing pid file".to_string(), err))?;
+        .map_err(|err| Error::IoPathError(pid_path.to_path_buf(), "writing pid file", err))?;
 
     Ok(())
 }
 
 /// Remove the daemon's pid file.
 /// Errors if it doesn't exist or cannot be deleted.
-pub fn cleanup_pid_file(pid_path: &Path) -> Result<()> {
+pub fn cleanup_pid_file(pid_path: &Path) -> Result<(), Error> {
     std::fs::remove_file(pid_path)
-        .map_err(|err| Error::IoError("removing pid file".to_string(), err))?;
-    Ok(())
+        .map_err(|err| Error::IoPathError(pid_path.to_path_buf(), "removing pid file", err))
 }

pueue/src/daemon/task_handler/callback.rs

@@ -64,7 +64,7 @@ impl TaskHandler {
         // Format and insert start and end times.
         let print_time = |time: Option<DateTime<Local>>| {
             time.map(|time| time.timestamp().to_string())
-                .unwrap_or_else(String::new)
+                .unwrap_or_default()
         };
         parameters.insert("start", print_time(task.start));
         parameters.insert("end", print_time(task.end));