build(bazel): generalize fix for AMD name for flat module out file

packages/bazel/src/ngc-wrapped/index.ts

@@ -209,16 +209,20 @@ export function compile({allowNonHermeticReads, allDepsCompiledWithBazel = true,
     // compilationTargetSrc.
     // However we still want to give it an AMD module name for devmode.
     // We can't easily tell which file is the synthetic one, so we build up the path we expect
-    // it to have
-    // and compare against that.
+    // it to have and compare against that.
     if (fileName ===
         path.join(compilerOpts.baseUrl, bazelOpts.package, compilerOpts.flatModuleOutFile + '.ts'))
       return true;
-    // Also handle the case when angular is built from source as an external repository
-    if (fileName ===
-        path.join(
-            compilerOpts.baseUrl, 'external/angular', bazelOpts.package,
-            compilerOpts.flatModuleOutFile + '.ts'))
+    // Also handle the case the target is in an external repository.
+    // Pull the workspace name from the target which is formatted as `@wksp//package:target`
+    // if it the target is from an external workspace. If the target is from the local
+    // workspace then it will be formatted as `//package:target`.
+    const targetWorkspace = bazelOpts.target.split('/')[0].replace(/^@/, '');
+    if (targetWorkspace &&
+        fileName ===
+            path.join(
+                compilerOpts.baseUrl, 'external', targetWorkspace, bazelOpts.package,
+                compilerOpts.flatModuleOutFile + '.ts'))
       return true;
     return origBazelHostShouldNameModule(fileName) || NGC_GEN_FILES.test(fileName);
   };