Modify sbt output parsing to allow .sbtopts with modified output

index.ts

@@ -1,5 +1,6 @@
 import { spawn, SpawnOptions } from "child_process";
 import type { Plugin as VitePlugin } from "vite";
+import fs from "fs";
 
 // Utility to invoke a given sbt task and fetch its output
 function printSbtTask(task: string, cwd?: string): Promise<string> {
@@ -33,7 +34,13 @@ function printSbtTask(task: string, cwd?: string): Promise<string> {
         }
         reject(new Error(errorMessage));
       } else {
-        resolve(fullOutput.trimEnd().split('\n').at(-1)!);
+        const separator = process.platform === 'win32' ? '\r\n' : '\n';
+        const lines = fullOutput.trimEnd().split(separator);
+        const withoutLog = lines.filter(line => !line.startsWith('['));
+        const pathExists = withoutLog.filter(line => fs.existsSync(line));
+        pathExists.length > 0
+            ? resolve(pathExists.at(-1)!)
+            : reject(new Error(`Couldn't find a valid path in sbt output: ${fullOutput}`));
       }
     });
   });

test/plugin.test.ts

@@ -52,7 +52,10 @@ describe("scalaJSPlugin", () => {
     await plugin.configResolved.call(undefined, { mode: MODE_PRODUCTION });
     await plugin.buildStart.call(fakePluginContext, {});
 
-    expect(normalizeSlashes(await plugin.resolveId.call(fakePluginContext, 'scalajs:main.js')))
+    const path = await plugin.resolveId.call(fakePluginContext, 'scalajs:main.js');
+    const normalized = normalizeSlashes(path);
+
+    expect(normalized)
       .toContain('/testproject/target/scala-3.2.2/testproject-opt/main.js');
 
     expect(await plugin.resolveId.call(fakePluginContext, 'scalajs/main.js'))
@@ -65,7 +68,10 @@ describe("scalaJSPlugin", () => {
     await plugin.configResolved.call(undefined, { mode: MODE_DEVELOPMENT });
     await plugin.buildStart.call(fakePluginContext, {});
 
-    expect(normalizeSlashes(await plugin.resolveId.call(fakePluginContext, 'scalajs:main.js')))
+    const path = await plugin.resolveId.call(fakePluginContext, 'scalajs:main.js');
+    const normalized = normalizeSlashes(path);
+
+    expect(normalized)
       .toContain('/testproject/target/scala-3.2.2/testproject-fastopt/main.js');
 
     expect(await plugin.resolveId.call(fakePluginContext, 'scalajs/main.js'))
@@ -80,7 +86,10 @@ describe("scalaJSPlugin", () => {
     await plugin.configResolved.call(undefined, { mode: MODE_PRODUCTION });
     await plugin.buildStart.call(fakePluginContext, {});
 
-    expect(normalizeSlashes(await plugin.resolveId.call(fakePluginContext, 'scalajs:main.js')))
+    const path = await plugin.resolveId.call(fakePluginContext, 'scalajs:main.js');
+    const normalized = normalizeSlashes(path);
+
+    expect(normalized)
       .toContain('/testproject/other-project/target/scala-3.2.2/otherproject-opt/main.js');
 
     expect(await plugin.resolveId.call(fakePluginContext, 'scalajs/main.js'))
@@ -95,7 +104,10 @@ describe("scalaJSPlugin", () => {
     await plugin.configResolved.call(undefined, { mode: MODE_DEVELOPMENT });
     await plugin.buildStart.call(fakePluginContext, {});
 
-    expect(normalizeSlashes(await plugin.resolveId.call(fakePluginContext, 'customsjs:main.js')))
+    const path = await plugin.resolveId.call(fakePluginContext, 'customsjs:main.js');
+    const normalized = normalizeSlashes(path);
+
+    expect(normalized)
       .toContain('/testproject/target/scala-3.2.2/testproject-fastopt/main.js');
 
     expect(await plugin.resolveId.call(fakePluginContext, 'scalajs:main.js'))

test/testproject/.sbtopts

@@ -0,0 +1,3 @@
+-Dsbt.task.timings=true
+-Dsbt.task.timings.unit=s
+-Dsbt.task.timings.on.shutdown=true