Update .gitlab-ci.yml to use ghdl/vunit docker img

.gitlab-ci.yml

@@ -2,3 +2,35 @@ image: ghdl/vunit:gcc-master
 
 run_tests:
   script: python3 ./testbench/run.py
+
+## OLD CI script below  
+#image: debian:testing
+#service:
+#  - python:latest
+#
+#build:
+#  stage: build
+#  before_script:
+#    - apt-get update
+#    - apt-get install -y git make colormake
+#    - apt-get install -y gcc-7 gnat-7 gcc gnat
+#    - apt-get install -y llvm-4.0 llvm-4.0-dev llvm-4.0-tools llvm
+#    - apt-get install -y clang-4.0 clang
+#    - apt-get install -y zlib1g-dev libedit-dev
+#    - apt-get install -y python3 python3-pip
+#    - ./tools/GitLab-CI/grc.setup.sh
+#    - ./tools/GitLab-CI/ghdl.setup.sh
+#    - pip3 install -r ./tools/GitLab-CI/requirements.txt
+#  script:
+#    - echo "build"
+#    - export PATH=$PATH:./ghdl/bin
+#    - export VUNIT_SIMULATOR=ghdl
+#    - python3 ./testbench/run.py -k
+#  artifacts:
+#    paths:
+#      - mybinary
+#
+## run tests using the binary built before
+#test:
+#  stage: test
+#  script: