declare jobs & actions variables (DRY principle)

.github/actions/install-conda-cylc/action.yml

@@ -4,11 +4,28 @@ inputs:
   env-path:
     required: true
     type: string
-    default: 'cylc-src/bioreactor-workflow/envs/cylc.yml'
+    description: 'Path to the conda environment file specifying the cylc environment.'
+  wrapper-path:
+    required: false
+    type: string
+    description: 'Directory path where the cylc and rose wrapper scripts should be written. Must be in PATH.'
+    default: '/usr/local/bin'
 
 runs:
   using: composite
   steps:
+    - name: check conda env file
+      description: Check if the conda env file contains at least cylc-flow or cylc-flow-base
+      run: |
+        if ! grep -q 'name: cylc' "${{ inputs.env-path }}"; then
+            echo "The conda environment should be named 'cylc'."
+            exit 1
+          fi
+        if ! grep -q cylc-flow ${{ inputs.env-path }}; then
+          echo "'cylc-flow' or 'cylc-flow-base' not found in the conda env file."
+          exit 1
+        fi
+
     - uses: conda-incubator/setup-miniconda@v3
       with:
         auto-activate-base: false
@@ -25,7 +42,7 @@ runs:
       shell: bash -el {0}
       run: |
         CONDA_ENVS=${CONDA}/envs
-        WRAPPER_DIR=/usr/local/bin
+        WRAPPER_DIR=${{ inputs.wrapper-path }}
         cylc get-resources cylc ${WRAPPER_DIR} && chmod +x ${WRAPPER_DIR}/cylc
         sed -i "s|^CYLC_HOME_ROOT=.*|CYLC_HOME_ROOT=${CONDA_ENVS}|" ${WRAPPER_DIR}/cylc
         ln -s ${WRAPPER_DIR}/cylc ${WRAPPER_DIR}/rose

.github/workflows/cylc-lint-validate.yml

@@ -5,6 +5,7 @@ on:
   pull_request:
     paths:
       - '.github/workflows/cylc-lint-validate.yml'
+      - '.github/actions/install-conda-cylc/action.yml'
       - 'cylc-src/**.cylc'
   push:
     branches: [main]
@@ -18,17 +19,20 @@ jobs:
   cylc-validate:
     name: Validate Cylc files
     runs-on: ubuntu-latest
+    env:
+      conda_env_file: 'cylc-src/bioreactor-workflow/envs/cylc.yml'
+      workflow_path: './cylc-src/bioreactor-workflow'
     defaults:
       run:
         shell: bash -eul {0}
     steps:
       - uses: actions/checkout@v3
       - uses: ./.github/actions/install-conda-cylc
         with:
-          env-path: 'cylc-src/bioreactor-workflow/envs/cylc.yml'
+          env-path: ${{ env.conda_env_file }}
       - name: cylc lint
         run: |
-          cylc lint ./cylc-src/bioreactor-workflow
+          cylc lint -v ${workflow_path}
       - name: cylc validate
         run: |
-          cylc validate ./cylc-src/bioreactor-workflow
+          cylc validate -v ${workflow_path}