feat(ci): support downloading extra app artifacts in pytest

Add app_extra S3 artifact type, extend idf-ci download plumbing, and
expose a download_app_extra pytest fixture for managed_components deps.

.idf_ci.toml

@@ -81,6 +81,15 @@ patterns = [
 ]
 if_clause = 'CI_JOB_GROUP_NAME != "build_non_test_related_apps"'
 
+[gitlab.artifacts.s3.app_extra]
+bucket = "idf-artifacts"
+# App-dir files needed at target-test time but outside build_* (uploaded without --build-dir).
+# Add patterns here as needed, e.g. coverage info produced during build.
+patterns = [
+    '**/managed_components/**/*.py',
+]
+if_clause = 'CI_JOB_GROUP_NAME != "build_non_test_related_apps"'
+
 [gitlab.artifacts.s3.log]
 bucket = "idf-artifacts"
 patterns = [

conftest.py

@@ -1,4 +1,4 @@
-# SPDX-FileCopyrightText: 2021-2025 Espressif Systems (Shanghai) CO LTD
+# SPDX-FileCopyrightText: 2021-2026 Espressif Systems (Shanghai) CO LTD
 # SPDX-License-Identifier: Apache-2.0
 # pylint: disable=W0621  # redefined-outer-name
 #
@@ -36,6 +36,8 @@ from _pytest.config import Config
 from _pytest.fixtures import FixtureRequest
 from idf_ci import PytestCase
 from idf_ci.idf_pytest import IDF_CI_PYTEST_CASE_KEY
+from idf_ci_utils import APP_EXTRA_S3_ARTIFACT_TYPE
+from idf_ci_utils import IDF_PATH
 from idf_ci_utils import idf_relpath
 from idf_pytest.constants import DEFAULT_LOGDIR
 from idf_pytest.plugin import IDF_LOCAL_PLUGIN_KEY
@@ -145,6 +147,33 @@ class AppDownloader:
             stderr=sys.stderr,
         )
 
+    def download_app_extra(self, app_dir: str) -> None:
+        """Download app-dir artifacts defined under app_extra in .idf_ci.toml."""
+        args = [
+            'idf-ci',
+            'gitlab',
+            'download-artifacts',
+            '--commit-sha',
+            self.commit_sha,
+            '--type',
+            APP_EXTRA_S3_ARTIFACT_TYPE,
+            app_dir,
+        ]
+        if self.pipeline_id:
+            args.extend(['--pipeline-id', self.pipeline_id])
+
+        result = subprocess.run(
+            args,
+            capture_output=True,
+            text=True,
+            cwd=IDF_PATH,
+        )
+        logging.info(result.stdout)
+        if result.stderr:
+            logging.info(result.stderr)
+        if result.returncode != 0:
+            raise RuntimeError(f'Failed to download {APP_EXTRA_S3_ARTIFACT_TYPE} artifacts for {app_dir}')
+
 
 PRESIGNED_JSON = 'presigned.json'
 
@@ -278,6 +307,18 @@ def app_downloader(
     return AppDownloader(commit_sha, pipeline_id)
 
 
+@pytest.fixture
+def download_app_extra(app_downloader: AppDownloader | None) -> t.Callable[[str], None]:
+    """Download app_extra S3 artifacts for the given app path (no-op outside CI)."""
+
+    def _download_app_extra(app_path: str) -> None:
+        if app_downloader is None:
+            return
+        app_downloader.download_app_extra(idf_relpath(app_path))
+
+    return _download_app_extra
+
+
 @pytest.fixture
 @multi_dut_fixture
 def build_dir(

tools/ci/idf_ci_local/app.py

@@ -1,4 +1,4 @@
-# SPDX-FileCopyrightText: 2024-2025 Espressif Systems (Shanghai) CO LTD
+# SPDX-FileCopyrightText: 2024-2026 Espressif Systems (Shanghai) CO LTD
 # SPDX-License-Identifier: Apache-2.0
 import os
 import subprocess
@@ -9,6 +9,7 @@ from dynamic_pipelines.constants import BINARY_SIZE_METRIC_NAME
 from idf_build_apps import App
 from idf_build_apps import CMakeApp
 from idf_build_apps.utils import rmdir
+from idf_ci_utils import APP_EXTRA_S3_ARTIFACT_TYPE
 from idf_ci_utils import idf_relpath
 
 if t.TYPE_CHECKING:
@@ -29,16 +30,30 @@ class IdfCMakeApp(CMakeApp):
 
         # only upload in CI
         if os.getenv('CI_JOB_ID'):
-            subprocess.run(
+            upload_commands = [
                 [
                     'idf-ci',
                     'gitlab',
                     'upload-artifacts',
                     self.app_dir,
                 ],
-                stdout=sys.stdout,
-                stderr=sys.stderr,
-            )
+                [
+                    'idf-ci',
+                    'gitlab',
+                    'upload-artifacts',
+                    self.app_dir,
+                    '--type',
+                    APP_EXTRA_S3_ARTIFACT_TYPE,
+                ],
+            ]
+
+            for command in upload_commands:
+                subprocess.run(
+                    command,
+                    stdout=sys.stdout,
+                    stderr=sys.stderr,
+                )
+
             rmdir(
                 self.build_path,
                 exclude_file_patterns=['build_log.txt', 'size*.json'],

tools/ci/idf_ci_utils.py

@@ -12,6 +12,9 @@ from functools import cached_property
 
 IDF_PATH: str = os.path.abspath(os.getenv('IDF_PATH', os.path.join(os.path.dirname(__file__), '..', '..')))
 
+# S3 artifact type for app-dir files outside build_*
+APP_EXTRA_S3_ARTIFACT_TYPE = 'app_extra'
+
 
 def get_submodule_dirs(full_path: bool = False) -> list[str]:
     """