[!79] [CI] Refactor source-retrieval jobs

Merge branch 'ci-refactor-source' into 'master'

Addresses: [#32]

See merge request [joe/pacxx-docker!79]

  [#32]: gitlab.dune-project.org/joe/pacxx-docker/issues/32
  [joe/pacxx-docker!79]: gitlab.dune-project.org/joe/pacxx-docker/merge_requests/79

.gitlab-ci.yml

@@ -6,7 +6,7 @@ variables:
 stages:
 - utils
 - base
-- pacxx-source
+- source
 - pacxx-build
 - mkimage
 - samples-build
@@ -104,18 +104,21 @@ stop-base:
 
 ######################################################################
 #
-#  PACXX Source: get the sources
+#  Source: get the sources
 #
 
 # using the just-built image here because if we use e.g. alpine, the produced
 # zip will record the uid and gid of root for all files, and the extraction
 # process later will preserve that
-pacxx-source:
-  stage: pacxx-source
+.source:
+  stage: source
   image: $REGISTRY/$CI_PROJECT_PATH:base-native.$PIPELINE_TAG
   dependencies: []
   tags:
   - hpc2seci
+
+pacxx-source:
+  extends: .source
   script:
   - getpacxx --versionlog=repoversions
   - mv repoversions llvm/
@@ -126,11 +129,7 @@ pacxx-source:
     expire_in: 1 week
 
 samples-source:
-  stage: pacxx-source
-  image: $REGISTRY/$CI_PROJECT_PATH:base-native.$PIPELINE_TAG
-  dependencies: []
-  tags:
-  - hpc2seci
+  extends: .source
   script:
   - getpacxx --versionlog=repoversions --samples
   - mv repoversions samples