verify in the last CI stage, that unit tests does not rely on feature…

… branches

.gitlab-ci.yml

@@ -1,14 +1,23 @@
 stages:
   - unit-test
+  - verify-unit-test-deps
 
 unit_tests_julia1.9:
   image: julia:1.9
   stage: unit-test
   script:
     - julia --project=. -e 'import Pkg; Pkg.Registry.add(Pkg.RegistrySpec(url="https://github.com/QEDjl-project/registry.git"));'
     - julia --project=. -e 'import Pkg; Pkg.Registry.add(Pkg.RegistrySpec(url="https://github.com/JuliaRegistries/General"));'
-    - julia --project=. ${CI_PROJECT_DIR}/SetupDevEnv/src/SetupDevEnv.jl ${CI_PROJECT_DIR}/Project.toml
+    - julia --project=. ${CI_PROJECT_DIR}/ci/SetupDevEnv/src/SetupDevEnv.jl ${CI_PROJECT_DIR}/Project.toml
     - julia --project=. -e 'import Pkg; Pkg.instantiate()'
     - julia --project=. -e 'import Pkg; Pkg.test(; coverage = true)'
   tags:
     - cpuonly
+
+verify-unit-test-deps_julia1.9:
+  image: julia:1.9
+  stage: verify-unit-test-deps
+  script:
+    - julia ${CI_PROJECT_DIR}/ci/verify_env.jl
+  tags:
+    - cpuonly

ci/verify_env.jl

@@ -0,0 +1,40 @@
+"""
+The script checks, if custom dependency for unit tests via `CI_UNIT_PKG_URL_<package_name>` are set.
+If yes, the script fails, which means in practice, that the PR rely on non merged code.
+"""
+
+"""
+    extract_env_vars_from_git_message!()
+
+Parse the commit message, if set via variable `CI_COMMIT_MESSAGE` and set custom urls.
+"""
+function extract_env_vars_from_git_message!()
+    if haskey(ENV, "CI_COMMIT_MESSAGE")
+        println("Found env variable CI_COMMIT_MESSAGE")
+        for line in split(ENV["CI_COMMIT_MESSAGE"], "\n")
+            line = strip(line)
+            if startswith(line, "CI_UNIT_PKG_URL_")
+                (var_name, url) = split(line, ":"; limit=2)
+                println("add " * var_name * "=" * strip(url))
+                ENV[var_name] = strip(url)
+            end
+        end
+    end
+end
+
+if abspath(PROGRAM_FILE) == @__FILE__
+    extract_env_vars_from_git_message!()
+    filtered_env = filter((env_name)-> startswith(env_name, "CI_UNIT_PKG_URL_"), keys(ENV))
+
+    if isempty(filtered_env)
+        printstyled("No custom dependencies for unit tests detected.\n"; color = :green)
+        exit(0)
+    else
+        printstyled("Found custom dependencies for unit tests detected.\n"; color = :red)
+        for env in filtered_env
+            printstyled("  $env\n"; color = :red)
+        end
+        printstyled("\nPlease merge the custom dependency before and run the CI with custom dependency again.\n"; color = :red)
+        exit(1)
+    end
+end