ci: Use custom images to cover GHC 7.6-8.0

.gitlab-ci.yml

@@ -1,20 +1,22 @@
 stages:
   - build
 
-before_script:
-  - cabal update
-  - mkdir -p ../ghc-mod.sdist
-  - ls -l ..
-  - touch ChangeLog
-  - cabal sdist --output-directory=../ghc-mod.sdist
-  - rm -f cabal.sandbox.config && cabal sandbox init
-  - cp cabal.sandbox.config ../ghc-mod.sdist
-  - cd ../ghc-mod.sdist
+.before_script_template: &common_before_script
+  before_script:
+    - ls -l ..
+    - apt-get update && apt-get install alex happy
+    - mkdir -p ../ghc-mod.sdist-$CI_PIPELINE_ID
+    - touch ChangeLog
+    - cabal update
+    - cabal sdist --output-directory=../ghc-mod.sdist-$CI_PIPELINE_ID
+    - cd ../ghc-mod.sdist-$CI_PIPELINE_ID
 
 after_script:
-  - rm -rf  "$CI_PROJECT_DIR"/../ghc-mod.sdist
+  - cd "$CI_PROJECT_DIR"
+  - ghc-pkg list | tee packages.list
+  - rm -rf  "$CI_PROJECT_DIR"/../ghc-mod.sdist-$CI_PIPELINE_ID
 
-.job_template: &common_script
+.script_template: &common_script
   script:
     - echo $PWD
     - ghc-pkg list
@@ -23,24 +25,50 @@ after_script:
     - cabal --version
     - cabal configure --enable-tests
     - cabal build -j2
-    - ghc-pkg list
     - which cabal
     - cabal --version
     - ./dist/build/spec/spec
     - ./dist/build/doctest/doctest
     - cabal haddock
 
-job-ghc801:
-  image: haskell:8.0.1
+.artifacts_template: &common_artifacts
+  artifacts:
+    paths:
+      - packages.list
+      - ~/.cabal/logs
+    when: always
+
+job-ghc800:
+  image: registry.gitlab.com/dxld/ghc-mod:ghc8.0.2-cabal-install1.24.0.2
   stage: build
+  <<: *common_before_script
   <<: *common_script
+  <<: *common_artifacts
 
 job-ghc710:
-  image: haskell:7.10.3
+  image: registry.gitlab.com/dxld/ghc-mod:ghc7.10.3-cabal-install1.22.8.0
   stage: build
+  <<: *common_before_script
   <<: *common_script
+  <<: *common_artifacts
 
 job-ghc708:
-  image: haskell:7.8.4
+  image: registry.gitlab.com/dxld/ghc-mod:ghc7.8.4-cabal-install1.18.1.0
   stage: build
+  <<: *common_before_script
   <<: *common_script
+  <<: *common_artifacts
+
+
+job-ghc706:
+  image: registry.gitlab.com/dxld/ghc-mod:ghc7.6.3-cabal-install1.18.1.0
+  stage: build
+  before_script:
+    - cabal update
+    - cabal install alex
+    - cabal install happy
+    - cp ~/.cabal/bin/{alex,happy} /usr/local/bin
+    - rm -rf ~/.cabal/{bin,lib,libexec,setup-exe-cache,share,store} ~/.ghc
+  allow_failure: true
+  <<: *common_script
+  <<: *common_artifacts