Dynamically set CONDA_OFFLINE based on pkgs dir existance

conda-build.yml

@@ -69,8 +69,22 @@ variables:
         - conda-recipe/meta.yaml
       prefix: ${CI_PROJECT_PATH_SLUG}_conda_pkgs
   script:
-    - conda info
-    - ls -l .conda-pkgs || true
+    # Determine if we should go online or not by looking at whether or not there is a cache.
+    # If there's a fresh cache, the pkgs dirs will not be created at this point.
+    # Since there's only a fresh cache if the recipe has changed (see cache:key:files above),
+    # we allow conda to pull in new packages online in that case.
+    - |
+      if [ -z ${CONDA_OFFLINE+x} ]; then
+        if [ -d .conda-pkgs ]; then
+          echo "DEBUG: Found GitLab cache. Telling conda to use offline packages from cache."
+          export CONDA_OFFLINE="True"
+        else
+          echo "DEBUG: Did not found GitLab cache. Telling conda to use online repositories."
+          # Online is default, so don't do anything.
+        fi
+      else
+        echo "DEBUG: CONDA_OFFLINE is pre-set to ${CONDA_OFFLINE}"
+      fi
     # Disable environment verification when we're in a MR.
     # Environment verficiation is normally done just after the test env is created, and can be quite expensive.
     # Because we're in containers and because the same job will be run on the default branch _with_ env verification,
@@ -110,7 +124,6 @@ variables:
       if [ -f "coverage.xml" ]; then
         coverage-fixpaths --loglevel debug --source . coverage.xml
       fi
-    - ls -l .conda-pkgs || true
   dependencies:
     - conda_build
   artifacts:
@@ -141,20 +154,5 @@ conda_build:
     paths:
       - ${CONDA_OUTPUT_FOLDER}/**/*.{tar.bz2,conda}
 
-# Run conda test online if there are changes to the recipe.
-# This will allow conda to pull in new dependencies and add them to the cache.
-conda_test_online:
+conda_test:
   extends: .abstract_conda_test
-  rules:
-    - changes:
-      - conda-recipe/meta.yaml
-
-# Run conda test offline if there are no changes to the recipe.
-# All dependencies will be pulled from the cache.
-conda_test_offline:
-  extends: .abstract_conda_test
-  variables:
-    CONDA_OFFLINE: "True"
-  except:
-    changes:
-      - conda-recipe/meta.yaml