Fix possible windows bugs in incremental compilation

Author: fhammerschmidt

server/src/constants.ts

@@ -45,6 +45,7 @@ export let rescriptJsonPartialPath = "rescript.json";
 export let compilerDirPartialPath = path.join("lib", "bs");
 export let compilerLogPartialPath = path.join("lib", "bs", ".compiler.log");
 export let buildNinjaPartialPath = path.join("lib", "bs", "build.ninja");
+export let rewatchLockPartialPath = path.join("lib", "rewatch.lock");
 export let resExt = ".res";
 export let resiExt = ".resi";
 export let cmiExt = ".cmi";

server/src/incrementalCompilation.ts

@@ -190,11 +190,11 @@ function getBscArgs(
 ): Promise<Array<string> | RewatchCompilerArgs | null> {
   const buildNinjaPath = path.resolve(
     entry.project.rootPath,
-    "lib/bs/build.ninja"
+    c.buildNinjaPartialPath
   );
   const rewatchLockfile = path.resolve(
     entry.project.workspaceRootPath,
-    "lib/rewatch.lock"
+    c.rewatchLockPartialPath
   );
   let buildSystem: "bsb" | "rewatch" | null = null;
 
@@ -246,7 +246,13 @@ function getBscArgs(
     }
 
     if (buildSystem === "bsb") {
-      const fileStream = fs.createReadStream(buildNinjaPath);
+      const fileStream = fs.createReadStream(buildNinjaPath, {
+        encoding: "utf8",
+      });
+      fileStream.on("error", (err) => {
+        console.error("File stream error:", err);
+        resolveResult([]);
+      });
       const rl = readline.createInterface({
         input: fileStream,
         crlfDelay: Infinity,
@@ -256,6 +262,7 @@ function getBscArgs(
       let stopped = false;
       const captured: Array<string> = [];
       rl.on("line", (line) => {
+        line = line.trim(); // Normalize line endings
         if (stopped) {
           return;
         }
@@ -264,7 +271,8 @@ function getBscArgs(
           captureNextLine = false;
         }
         if (done) {
-          fileStream.destroy();
+          // Not sure if fileStream.destroy is necessary, rl.close() will handle it gracefully.
+          // fileStream.destroy();
           rl.close();
           resolveResult(captured);
           stopped = true;
@@ -278,6 +286,10 @@ function getBscArgs(
           done = true;
         }
       });
+      rl.on("error", (err) => {
+        console.error("Readline error:", err);
+        resolveResult([]);
+      });
       rl.on("close", () => {
         resolveResult(captured);
       });
@@ -399,7 +411,7 @@ function triggerIncrementalCompilationOfFile(
 
     let originalTypeFileLocation = path.resolve(
       projectRootPath,
-      "lib/bs",
+      c.compilerDirPartialPath,
       path.relative(projectRootPath, filePath)
     );