Handle failures in writeTemporaryDiagnosticFile

src/diagnostics.ts

@@ -175,7 +175,7 @@ export function addDiagnostic(
     );
 
     // Write the diagnostic to a temporary location.
-    writeTemporaryDiagnosticFile(config.tempDir, language, diagnostic);
+    writeTemporaryDiagnosticFile(logger, config.tempDir, language, diagnostic);
   }
 }
 
@@ -183,6 +183,7 @@ export function addDiagnostic(
 export function addNoLanguageDiagnostic(
   config: Config | undefined,
   diagnostic: DiagnosticMessage,
+  logger: Logger = getActionsLogger(),
 ) {
   if (config !== undefined) {
     addDiagnostic(
@@ -193,8 +194,13 @@ export function addNoLanguageDiagnostic(
       diagnostic,
     );
   } else {
+    logger.debug(
+      `Writing a diagnostic not associated with any language, but we have no configuration to tell us where the database is yet.`,
+    );
+
     // Write the diagnostic to a temporary location.
     writeTemporaryDiagnosticFile(
+      logger,
       getTemporaryDirectory(),
       undefined,
       diagnostic,
@@ -207,16 +213,24 @@ export function addNoLanguageDiagnostic(
  * and tracks it as a diagnostic that was written to a temporary location.
  */
 function writeTemporaryDiagnosticFile(
+  logger: Logger,
   tempDir: string,
   language: Language | undefined,
   diagnostic: DiagnosticMessage,
 ) {
-  // Write the diagnostic to a temporary location.
   const tempDiagnosticsPath = getTempDiagnosticPath(tempDir, language);
-  const diagnosticPath = writeDiagnosticFile(tempDiagnosticsPath, diagnostic);
 
-  // Track the temporary file.
-  temporaryDiagnostics.push({ path: diagnosticPath, language });
+  try {
+    // Write the diagnostic to a temporary location.
+    const diagnosticPath = writeDiagnosticFile(tempDiagnosticsPath, diagnostic);
+
+    // Track the temporary file.
+    temporaryDiagnostics.push({ path: diagnosticPath, language });
+  } catch (err) {
+    logger.warning(
+      `Unable to write temporary diagnostic to '${tempDiagnosticsPath}': ${getErrorMessage(err)}\n\n${JSON.stringify(diagnostic)}`,
+    );
+  }
 }
 
 /**