build: ensure tsconfig is explicitly configured for ts_project targets

Currently we always use our build tsconfigs from `/src`, whenever we see
a `ts_project`, or `ng_project` target. This doesn't work for targets
outside of `src` and ambiguously breaks the build.

This commit makes this a more obvious failure mode.

Author: devversion

tools/bazel/ts_project_interop.bzl

@@ -124,9 +124,6 @@ def ts_project(
             if d.endswith("_rjs"):
                 rjs_modules_to_rnjs.append(d.replace("_rjs", ""))
 
-    if tsconfig == None:
-        tsconfig = "//src:test-tsconfig" if testonly else "//src:build-tsconfig"
-
     ts_deps_interop(
         name = "%s_interop_deps" % name,
         deps = [] + interop_deps + rjs_modules_to_rnjs,

tools/defaults2.bzl

@@ -11,12 +11,17 @@ def ts_project(
         name,
         source_map = True,
         testonly = False,
+        tsconfig = None,
         **kwargs):
+    if tsconfig == None and native.package_name().startswith("src"):
+        tsconfig = "//src:test-tsconfig" if testonly else "//src:build-tsconfig"
+
     _ts_project(
         name,
         source_map = source_map,
         module_name = compute_module_name(testonly),
         testonly = testonly,
+        tsconfig = tsconfig,
         **kwargs
     )
 
@@ -28,13 +33,18 @@ def ng_project(
         name,
         source_map = True,
         testonly = False,
+        tsconfig = None,
         **kwargs):
+    if tsconfig == None and native.package_name().startswith("src"):
+        tsconfig = "//src:test-tsconfig" if testonly else "//src:build-tsconfig"
+
     _ts_project(
         name,
         source_map = source_map,
         module_name = compute_module_name(testonly),
         rule_impl = _ng_project,
         testonly = testonly,
+        tsconfig = tsconfig,
         **kwargs
     )