Add setup for a new freeze file without cabal index timestap for use …

…in cache key

Use bash (windows)

polish

.github/workflows/ci.yml

@@ -67,11 +67,44 @@ jobs:
       run: |
         cabal freeze
 
+    - name: Setup cabal.project.freeze.cache.key
+      shell: bash
+      run: |
+          # Create a new caba.project.freeze.cache.key file for the cache key, removing the cabal index timestamp in the last line
+          source_file="cabal.project.freeze"
+          target_file="cabal.project.freeze.cache.key"
+
+          # Check if the source file exists
+          if [ ! -e "$source_file" ]; then
+              echo "Source file '$source_file' does not exist."
+              exit 1
+          fi
+
+          # Copy the source file to the target file
+          cp "$source_file" "$target_file"
+
+          # Check if the copy was successful
+          if [ $? -ne 0 ]; then
+              echo "Failed to copy the source file to the target file."
+              exit 1
+          fi
+
+          # Remove the last line from the target file
+          sed -i'' -e '$d' "$target_file"
+
+          # Check if the removal of the last line was successful
+          if [ $? -ne 0 ]; then
+              echo "Failed to remove the last line from the target file."
+              exit 1
+          fi
+
+          echo "File '$target_file' created with the last line removed."
+
     - uses: actions/[email protected]
       name: Cache ~/.cabal/store
       with:
         path: ${{ steps.setup-haskell-cabal.outputs.cabal-store }}
-        key: ${{ runner.os }}-${{ matrix.ghc }}-${{ hashFiles('cabal.project.freeze') }}
+        key: ${{ runner.os }}-${{ matrix.ghc }}-${{ hashFiles('cabal.project.freeze.cache.key') }}
 
     - name: Build
       run: |