Use SOURCE_RESULTS_URL instead of BUILD_RESULTS_URL to download the debian source package

While BUILD_RESULTS_URL refers to the artifact from the obs-capture job,
SOURCE_RESULTS_URL refers to the artifact from the build-source job.
To avoid capturing duplicated files on gitlab side, the debian source
package will no longer be captured by obs-capture since it's already
captured by build-source.

Moreover, for native packages, SOURCE_RESULTS_URL refers to the main
tarball instead of the *.debian.tar.* tarball which doesn't exist for
native package.

Signed-off-by: Dylan Aïssi <dylan.aissi@collabora.com>

lava/group-package-centric-tpl.yaml

@@ -49,12 +49,13 @@ job_name: Run {% raw %}{{job.PACKAGE}}{% endraw %}-in-{{image_name}}
             steps:
             - |
               curl -H "JOB-TOKEN: {% raw %}{{job.CI_JOB_TOKEN}}{% endraw %}" \
-                   -O {% raw %}{{job.BUILD_RESULTS_URL}}{% endraw %}/artifacts-list.txt
-            - DEBTAR_PATH=$(grep -m 1 "{% raw %}{{job.PACKAGE}}{% endraw %}.*\.debian\.tar\.xz$" artifacts-list.txt)
+                   -O {% raw %}{{job.SOURCE_RESULTS_URL}}{% endraw %}
             - |
-              curl -H "JOB-TOKEN: {% raw %}{{job.CI_JOB_TOKEN}}{% endraw %}" \
-                   --output {% raw %}{{job.PACKAGE}}{% endraw %}.debian.tar.xz {% raw %}{{job.BUILD_RESULTS_URL}}{% endraw %}/${DEBTAR_PATH}
-            - tar -xf {% raw %}{{job.PACKAGE}}{% endraw %}.debian.tar.xz
+              find . -name "{% raw %}{{job.PACKAGE}}{% endraw %}_*.debian.tar.*" -type f \
+                   -exec tar -xvf {} \;
+            - |
+              find . -name "{% raw %}{{job.PACKAGE}}{% endraw %}_*.tar.*" -not -name "*.debian.*" -type f \
+                   -exec tar -xvf {} --strip-components=1 \;
             - mkdir -p debian/tests/
             - cd debian/tests/
             - {{ PKG_TEST_CMD }}