[OE-core] [PATCHv2] testexport: Add support for testcase utils

[Erik Botö]

Add the possibility to ship a lib/oeqa/runtime/cases/utils directory
that will be included in the generated testexport tarball.

This makes it easier to split common functionality from test suites
into modules that can be imported from multiple test suites.

Signed-off-by: Erik Botö <erik.boto at gmail.com>
---
 meta/classes/testexport.bbclass | 23 +++++++++++++++++++++++
 1 file changed, 23 insertions(+)

diff --git a/meta/classes/testexport.bbclass b/meta/classes/testexport.bbclass
index d070f07afa..790ca3aff0 100644
--- a/meta/classes/testexport.bbclass
+++ b/meta/classes/testexport.bbclass
@@ -74,6 +74,21 @@ def testexport_main(d):
 
     copy_needed_files(d, tc)
 
+def get_runtime_cases_utils_paths(d):
+    """
+    Returns a list of paths where testcase utils must reside. Utils can be e.g.
+    common functionality used by multiple test cases.
+
+    Testcase utils are expected in <LAYER_DIR>/lib/oeqa/runtime/cases/utils/
+    """
+    paths = []
+
+    for layer in d.getVar('BBLAYERS').split():
+        path = os.path.join(layer, 'lib/oeqa/runtime/cases/utils')
+        if os.path.isdir(path):
+            paths.append(path)
+    return paths
+
 def copy_needed_files(d, tc):
     import shutil
     import oe.path
@@ -121,6 +136,14 @@ def copy_needed_files(d, tc):
         if json_file:
             shutil.copy2(json_file, cases_path)
 
+    # Copy cases/utils provided by layers
+    utils_dest_path = os.path.join(export_path, 'lib', 'oeqa', 'runtime', 'cases', 'utils')
+    utils_source_paths = get_runtime_cases_utils_paths(d)
+
+    for f in utils_source_paths:
+        if os.path.isdir(f):
+            oe.path.copytree(f, utils_dest_path)
+
     # Copy test data
     image_name = ("%s/%s" % (d.getVar('DEPLOY_DIR_IMAGE'),
                             d.getVar('IMAGE_LINK_NAME')))
-- 
2.19.0.rc1