extend installation instructions to micromamba

Close #19 (closed)

.gitlab-ci.yml

-image: gitlab-registry.cern.ch/ci-tools/ci-worker:cc7
-
-compilation:
+LCG:
     stage: build
     tags:
         - cvmfs
     variables:
         TERM: xterm
     script:
-        - yum install -y cmake3 openssl-devel python3 zsh
-        - source ./setup
+        - yum install -y cmake python3 zsh which libtirpc libicu libglvnd-glx pcre2-utf16 libXrender libSM glibc-devel zlib-devel git-lfs
+        - source /cvmfs/sft.cern.ch/lcg/views/LCG_104/x86_64-el9-gcc13-opt/setup.sh
+        - ./install.sh
+        - source tools/setup.sh
+        - ctest --test-dir Darwin.build --output-junit Testing/Temporary/test_report.xml -j$(nproc)
+        - ctest --test-dir Core.build   --output-junit Testing/Temporary/test_report.xml -j$(nproc)
+    artifacts:
+      when: always
+      paths:
+        - Darwin.build/Testing/Temporary
+        - Core.build/Testing/Temporary
+      reports:
+        junit:
+        - Darwin.build/Testing/Temporary/test_report.xml
+        - Core.build/Testing/Temporary/test_report.xml
+
+micromamba:
+    stage: build
+    script:
+        - sh <(curl -L micro.mamba.pm/install.sh)
+        - source ~/.bashrc
+        - micromamba --version
+        - micromamba create -f prerequisites.yml -y -v
+        - micromamba activate DAS
         - ./install.sh
-        - cd CMSSW*/
-        - shopt -s expand_aliases  # allows aliases like cmsenv to be used
-        - cmsenv
-        - python -c "import CRABAPI"
-        - scram b -j$(nproc)
+        - source tools/setup.sh
+        - ctest --test-dir Darwin.build --output-junit Testing/Temporary/test_report.xml -j$(nproc)
+        - ctest --test-dir Core.build   --output-junit Testing/Temporary/test_report.xml -j$(nproc)
+    artifacts:
+      when: always
+      paths:
+        - Darwin.build/Testing/Temporary
+        - Core.build/Testing/Temporary
+      reports:
+        junit:
+        - Darwin.build/Testing/Temporary/test_report.xml
+        - Core.build/Testing/Temporary/test_report.xml