Fixed execution under pdb (#1239)

.flake8

@@ -6,6 +6,7 @@ exclude =
     ,dist
     ,tools/configen/example/gen
     ,tools/configen/tests/test_modules/expected
+    ,temp
 
     # flake8-copyright does not support unicode, savoirfairelinux/flake8-copyright#15
     ,examples/plugins/example_configsource_plugin/hydra_plugins/example_configsource_plugin/example_configsource_plugin.py

.gitignore

@@ -9,6 +9,7 @@ __pycache__
 /.nox
 /report.json
 /.coverage
+/temp
 .mypy_cache
 pip-wheel-metadata
 .ipynb_checkpoints

.yamllint

@@ -36,6 +36,7 @@ ignore: |
   **/multirun.yaml
   .*
   .nox
+  temp
   # yamllint does not support unicode
   # https://github.com/adrienverge/yamllint/issues/238
   tests/standalone_apps/namespace_pkg_config_source_test/some_namespace/namespace_test/dir/config_with_unicode.yaml

hydra/_internal/utils.py

@@ -157,6 +157,22 @@ def compute_search_path_dir(
     return search_path_dir
 
 
+def is_under_debugger() -> bool:
+    """
+    Attempts to detect if running under a debugger
+    """
+    frames = inspect.stack()
+    if len(frames) >= 3:
+        filename = frames[-3].filename
+        if filename.endswith("/pdb.py"):
+            return True
+        elif filename.endswith("/pydevd.py"):
+            return True
+
+    # unknown debugging will sometimes set sys.trace
+    return sys.gettrace() is not None
+
+
 def create_automatic_config_search_path(
     calling_file: Optional[str],
     calling_module: Optional[str],
@@ -195,7 +211,7 @@ def run_and_report(func: Any) -> Any:
     try:
         return func()
     except Exception as ex:
-        if _is_env_set("HYDRA_FULL_ERROR"):
+        if _is_env_set("HYDRA_FULL_ERROR") or is_under_debugger():
             raise ex
         else:
             if isinstance(ex, CompactHydraException):

news/1237.bugfix

@@ -0,0 +1 @@
+No longer modifies exception stack trace when running under a debugger

tests/scripts/test_bash_dot_in_path.bash

@@ -1,4 +1,5 @@
 #!/bin/bash
+# Copyright (c) Facebook, Inc. and its affiliates. All Rights Reserved
 
 # Navigate to app with minimal configuration
 cd tests/test_apps/app_with_cfg/