Try/catch on trying to read compiler log (rescript-lang#1116)

* try/catch on trying to read compiler log, since it sometimes fails

* changelog

* restore formatting

Author: zth

CHANGELOG.md

@@ -12,6 +12,10 @@
 
 ## master
 
+#### :bug: Bug fix
+
+- Protect against trying to read non-existant `.compiler.log`. https://github.com/rescript-lang/rescript-vscode/pull/1116
+
 ## 1.64.0
 
 #### :rocket: New Feature

server/src/server.ts

@@ -99,7 +99,12 @@ let sendUpdatedDiagnostics = async () => {
   for (const [projectRootPath, projectFile] of projectsFiles) {
     let { filesWithDiagnostics } = projectFile;
     let compilerLogPath = path.join(projectRootPath, c.compilerLogPartialPath);
-    let content = fs.readFileSync(compilerLogPath, { encoding: "utf-8" });
+    let content = "";
+    try {
+      content = fs.readFileSync(compilerLogPath, { encoding: "utf-8" });
+    } catch (e) {
+      console.error(`Error reading compiler log file ${compilerLogPath}: ${e}`);
+    }
     let {
       done,
       result: filesAndErrors,