Add experimental build

.github/scripts/add_experimental_flags.sh

@@ -0,0 +1,40 @@
+#!/usr/bin/env bash
+
+set -euo pipefail
+
+MATRIX_FILE="$1"
+CABAL_FILE="$2"
+
+if [[ -z "$MATRIX_FILE" || ! -f "$MATRIX_FILE" ]]; then
+  echo "Usage: $0 matrix_file path/to/package.cabal"
+  exit 1
+fi
+
+if [[ -z "$CABAL_FILE" || ! -f "$CABAL_FILE" ]]; then
+  echo "Cabal file missing: $CABAL_FILE"
+  exit 1
+fi
+
+MATRIX_JSON=$(sed -E 's/^matrix=//' < "$MATRIX_FILE")
+
+readarray -t EXP_FLAGS < <(awk '
+  /^flag / { flag=$2; in_desc=0 }
+  /^ *description:/ { in_desc=1; if ($0 ~ /\(experimental\)/) print flag; next }
+  in_desc && /^[[:space:]]+/ { if ($0 ~ /\(experimental\)/) print flag; next }
+  /^[^[:space:]]/ { in_desc=0 }
+' "$CABAL_FILE")
+
+ORIGINAL=$(jq --arg label "stable" '.include[0] += {label: $label}' <<<"$MATRIX_JSON")
+
+if [[ ${#EXP_FLAGS[@]} -eq 0 ]]; then
+  UPDATED="$ORIGINAL"
+else
+  EXP_FLAGS_STRING=$(printf '+%s ' "${EXP_FLAGS[@]}")
+  EXPERIMENTAL=$(jq --arg flags "$EXP_FLAGS_STRING" --arg label "experimental" \
+    '.include[0] += {flags: $flags, label: $label}' <<<"$MATRIX_JSON")
+
+  UPDATED=$(jq --argjson exp_include "$(jq '.include' <<<"$EXPERIMENTAL")" \
+    '.include += $exp_include' <<<"$ORIGINAL")
+fi
+
+echo "$UPDATED" | jq -c .

.github/workflows/build-and-release.yaml

@@ -10,7 +10,7 @@ jobs:
   get-newest-supported-ghc:
     name: Get the newest supported GHC
     outputs:
-      matrix: ${{ steps.get-latest-version.outputs.matrix }}
+      matrix: ${{ steps.add-exp.outputs.matrix }}
     runs-on: ubuntu-latest
     steps:
       - name: Extract the tested GHC versions
@@ -21,10 +21,24 @@ jobs:
           windows-version: latest
           version: get-tested-for-jbeam-edit
           newest: true
+      - uses: actions/checkout@v5
+      - name: Add experimental flags
+        id: add-exp
+        shell: bash
+        run: |
+          echo "$OLD_MATRIX" > matrix.json
+          echo "checking input matrix"
+          cat matrix.json
+          MATRIX="$(bash ./.github/scripts/add_experimental_flags.sh matrix.json jbeam-edit.cabal)"
+          echo "checking output matrix"
+          echo $MATRIX
+          echo "matrix=$MATRIX" >> $GITHUB_OUTPUT
+        env:
+          OLD_MATRIX: ${{ steps.get-latest-version.outputs.matrix }}
   build-for-release:
     runs-on: windows-latest
     needs: get-newest-supported-ghc
-    name: Build for release for ${{ matrix.ghc }}
+    name: Build for release for ${{ matrix.ghc }} (${{ matrix.label}})
     strategy:
       matrix: ${{ fromJSON(needs.get-newest-supported-ghc.outputs.matrix) }}
     steps:
@@ -42,6 +56,13 @@ jobs:
       - name: Enable tests for non-tags
         if: "!startsWith(github.ref, 'refs/tags/')"
         run: cabal configure --project-file cabal.project.release --enable-tests
+      - name: Configure Cabal with flags from matrix
+        shell: bash
+        run: |
+          printf 'package jbeam-edit\n  flags: %s' $MATRIX_FLAGS >> cabal.project.release.local
+          cat cabal.project.release.local
+        env:
+          MATRIX_FLAGS: ${{ matrix.flags }}
       - name: Cache GHC, Cabal store, and build artifacts
         uses: actions/cache@v4.2.4
         if: "!startsWith(github.ref, 'refs/tags/')"
@@ -65,13 +86,13 @@ jobs:
       - name: Upload build artifact
         uses: actions/upload-artifact@v4
         with:
-          name: jbeam-edit-${{ matrix.ghc }}
+          name: jbeam-edit-${{ matrix.ghc }}-${{ matrix.label }}
           path: dist-newstyle
-  release:
+  prepare-for-release:
     runs-on: windows-latest
     needs: [build-for-release, get-newest-supported-ghc]
     if: startsWith(github.ref, 'refs/tags/')
-    name: Release for Windows
+    name: Prepare release for Windows
     strategy:
       matrix: ${{ fromJSON(needs.get-newest-supported-ghc.outputs.matrix) }}
     env:
@@ -84,7 +105,7 @@ jobs:
       - name: Download build artifact
         uses: actions/download-artifact@v5.0.0
         with:
-          name: jbeam-edit-${{ matrix.ghc }}
+          name: jbeam-edit-${{ matrix.ghc }}-${{ matrix.label }}
           path: ${{ env.DIST_NEWSTYLE }}
       - name: Extract files from cabal
         shell: bash
@@ -104,15 +125,40 @@ jobs:
         shell: powershell
         run: |
           $ErrorActionPreference = 'Stop'
-          $zipFile = "$env:GITHUB_WORKSPACE\dist\jbeam-edit-${env:GITHUB_REF_NAME}.zip"
+          $zipFile = "$env:GITHUB_WORKSPACE\dist\jbeam-edit-${env:GITHUB_REF_NAME}-${env:LABEL}.zip"
           $zipDir = "$env:GITHUB_WORKSPACE\dist\zip_temp"
           Add-Type -AssemblyName System.IO.Compression.FileSystem
           [System.IO.Compression.ZipFile]::CreateFromDirectory($zipDir, $zipFile)
-      - name: Create GitHub Release and upload zip
+        env:
+          LABEL: ${{ matrix.label}}
+      - name: Upload zip artifact
+        uses: actions/upload-artifact@v4
+        with:
+          name: jbeam-edit-${{ github.ref_name }}-${{ matrix.label }}.zip
+          path: dist/jbeam-edit-${{ github.ref_name }}-${{ matrix.label }}.zip
+  release:
+    runs-on: windows-latest
+    needs: [prepare-for-release]
+    if: startsWith(github.ref, 'refs/tags/')
+    name: Release for Windows
+    steps:
+      - uses: actions/checkout@v5
+      - name: Download all prepared zip artifacts
+        uses: actions/download-artifact@v5
+        with:
+          pattern: jbeam-edit-${{ github.ref_name }}-*.zip
+          path: dist
+      - name: Collect zip files to single folder
+        shell: bash
+        run: |
+          set -euo pipefail
+          mkdir -p dist_flat
+          find dist -type f -name '*.zip' -print0 | xargs -0 -I{} mv {} dist_flat/
+          ls -la dist_flat
+      - name: Create GitHub Release and upload zips
         uses: softprops/action-gh-release@v2.3.2
         with:
           tag_name: ${{ github.ref_name }}
           draft: true
           generate_release_notes: true
-          files: |-
-            dist/jbeam-edit-${{ github.ref_name }}.zip
+          files: dist_flat/*.zip