Continue even if the lsp cannot acquire an exclusive lock (#5740)

## Description

Before this PR the lsp will throw an error if it can't acquire a lock,
instead, log the error and continue gracefully.

## Checklist

- [ ] I have linked to any relevant issues.
- [ ] I have commented my code, particularly in hard-to-understand
areas.
- [ ] I have updated the documentation where relevant (API docs, the
reference, and the Sway book).
- [ ] I have added tests that prove my fix is effective or that my
feature works.
- [ ] I have added (or requested a maintainer to add) the necessary
`Breaking*` or `New Feature` labels where relevant.
- [ ] I have done my best to ensure that my PR adheres to [the Fuel Labs
Code Review
Standards](https://github.com/FuelLabs/rfcs/blob/master/text/code-standards/external-contributors.md).
- [ ] I have requested a review from the relevant team or maintainers.

forc-util/src/fs_locking.rs

@@ -71,7 +71,10 @@ impl PidFileLocking {
         if self.is_locked() {
             Err(io::Error::new(
                 std::io::ErrorKind::Other,
-                "Cannot remove a dirty lock file, it is locked by another process",
+                format!(
+                    "Cannot remove a dirty lock file, it is locked by another process (PID: {:#?})",
+                    self.get_locker_pid()
+                ),
             ))
         } else {
             self.remove_file()?;

sway-lsp/src/core/document.rs

@@ -115,7 +115,7 @@ pub fn mark_file_as_dirty(uri: &Url) -> Result<(), LanguageServerError> {
     let path = document::get_path_from_url(uri)?;
     Ok(PidFileLocking::lsp(path)
         .lock()
-        .map_err(|_| DirectoryError::LspLocksDirFailed)?)
+        .map_err(|e| DirectoryError::LspLocksDirFailed(e.to_string()))?)
 }
 
 /// Removes the corresponding flag file for the specifed Url.

sway-lsp/src/error.rs

@@ -54,8 +54,8 @@ pub enum DirectoryError {
     ManifestDirNotFound,
     #[error("Can't extract project name from {:?}", dir)]
     CantExtractProjectName { dir: String },
-    #[error("Failed to create hidden .lsp_locks directory")]
-    LspLocksDirFailed,
+    #[error("Failed to create hidden .lsp_locks directory: {0}")]
+    LspLocksDirFailed(String),
     #[error("Failed to create temp directory")]
     TempDirFailed,
     #[error("Failed to canonicalize path")]

sway-lsp/src/handlers/notification.rs

@@ -78,7 +78,10 @@ pub async fn handle_did_change_text_document(
     state: &ServerState,
     params: DidChangeTextDocumentParams,
 ) -> Result<(), LanguageServerError> {
-    document::mark_file_as_dirty(&params.text_document.uri)?;
+    if let Err(err) = document::mark_file_as_dirty(&params.text_document.uri) {
+        tracing::warn!("Failed to mark file as dirty: {}", err);
+    }
+
     let (uri, session) = state
         .sessions
         .uri_and_session_from_workspace(&params.text_document.uri)