feat(): add built-in source maps support

nestjs · Jul 7, 2021 · 499ac3f · 499ac3f
1 parent 0aea933
commit 499ac3f
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Showing 2 changed files with 15 additions and 3 deletions.
diff --git a/actions/start.action.ts b/actions/start.action.ts
@@ -43,9 +43,8 @@ export class StartAction extends BuildAction {
       const binaryToRun =
         binaryToRunOption && (binaryToRunOption.value as string | undefined);
 
-      const { options: tsOptions } = this.tsConfigProvider.getByConfigFilename(
-        pathToTsconfig,
-      );
+      const { options: tsOptions } =
+        this.tsConfigProvider.getByConfigFilename(pathToTsconfig);
       const outDir = tsOptions.outDir || defaultOutDir;
       const onSuccess = this.createOnSuccessHook(
         configuration,
@@ -146,9 +145,21 @@ export class StartAction extends BuildAction {
         typeof debug === 'string' ? `--inspect=${debug}` : '--inspect';
       processArgs.unshift(inspectFlag);
     }
+    if (this.isSourceMapSupportPkgAvailable()) {
+      processArgs.unshift('-r source-map-support/register');
+    }
     return spawn(binaryToRun, processArgs, {
       stdio: 'inherit',
       shell: true,
     });
   }
+
+  private isSourceMapSupportPkgAvailable() {
+    try {
+      require.resolve('source-map-support');
+      return true;
+    } catch {
+      return false;
+    }
+  }
 }
diff --git a/package.json b/package.json
@@ -58,6 +58,7 @@
     "os-name": "4.0.0",
     "rimraf": "3.0.2",
     "shelljs": "0.8.4",
+    "source-map-support": "0.5.19",
     "tree-kill": "1.2.2",
     "tsconfig-paths": "3.10.1",
     "tsconfig-paths-webpack-plugin": "3.5.1",