Update validate pipeline

Author: hasufell

.github/workflows/validate.yml

@@ -6,10 +6,6 @@ defaults:
   run:
     shell: bash
 
-# See: https://docs.github.com/en/actions/reference/workflow-syntax-for-github-actions#concurrency.
-concurrency:
-  group: ${{ github.ref }}-${{ github.workflow }}
-  cancel-in-progress: true
 
 # Note: This workflow file contains the required job "Validate post job". We are using path filtering
 # here to ignore PRs which only change documentation. This can cause a problem, see the workflow file
@@ -30,19 +26,6 @@ on:
   release:
     types:
       - created
-  workflow_call:
-
-  # See https://github.com/haskell/cabal/blob/master/CONTRIBUTING.md#hackage-revisions
-  workflow_dispatch:
-    inputs:
-      allow-newer:
-        description: allow-newer line
-        required: true
-        type: string
-      constraints:
-        description: constraints line
-        required: true
-        type: string
 
 env:
   # We choose a stable ghc version across all os's
@@ -70,18 +53,7 @@ jobs:
         # If you remove something from here, then add it to the old-ghcs job.
         # Also a removed GHC from here means that we are actually dropping
         # support, so the PR *must* have a changelog entry.
-        ghc: ['9.10.1', '9.8.2', '9.6.4', '9.4.8', '9.2.8', '9.0.2', '8.10.7', '8.8.4', '8.6.5']
-        exclude:
-          # corrupts GHA cache or the fabric of reality itself, see https://github.com/haskell/cabal/issues/8356
-          - os: windows-latest
-            ghc: '8.10.7'
-          # lot of segfaults caused by ghc bugs
-          - os: windows-latest
-            ghc: '8.8.4'
-          # it often randomly does "C:\Users\RUNNER~1\AppData\Local\Temp\ghcFEDE.c: DeleteFile "\\\\?\\C:\\Users\\RUNNER~1\\AppData\\Local\\Temp\\ghcFEDE.c": permission denied (Access is denied.)"
-          - os: windows-latest
-            ghc: '8.6.5'
-
+        ghc: ["9.2.8"]
     steps:
 
       - name: Work around XDG directories existence (haskell-actions/setup#62)
@@ -211,65 +183,6 @@ jobs:
         run: sh validate.sh $FLAGS -s solver-benchmarks-run
 
 
-  validate-old-ghcs:
-    name: Validate old ghcs ${{ matrix.extra-ghc }}
-    runs-on: ubuntu-latest
-    needs: validate
-
-    strategy:
-      matrix:
-        extra-ghc: ['8.4.4', '8.2.2', '8.0.2']
-          ## GHC 7.10.3 does not install on ubuntu-22.04 with ghcup.
-          ## Older GHCs are not supported by ghcup in the first place.
-      fail-fast: false
-
-    steps:
-
-      - uses: actions/checkout@v4
-
-      - name: Install prerequisites for old GHCs
-        run: |
-          sudo apt-get update
-          sudo apt-get install libncurses5 libtinfo5
-
-      - name: Install extra compiler
-        run: ghcup install ghc ${{ matrix.extra-ghc }}
-
-      - name: GHCup logs
-        if: always()
-        run: cat /usr/local/.ghcup/logs/*
-
-      - name: Install primary compiler
-        uses: haskell-actions/setup@v2
-        id: setup-haskell
-        with:
-          ghc-version: ${{ env.GHC_FOR_RELEASE }}
-          cabal-version: latest
-
-      - name: GHC versions
-        run: |
-          ghc --version
-          "ghc-${{ matrix.extra-ghc }}" --version
-
-      # As we are reusing the cached build dir from the previous step
-      # the generated artifacts are available here,
-      # including the cabal executable and the test suite
-      - uses: actions/cache@v4
-        with:
-          path: |
-            ${{ steps.setup-haskell.outputs.cabal-store }}
-            dist-*
-          key: ${{ runner.os }}-${{ env.GHC_FOR_RELEASE }}-${{ github.sha }}
-          restore-keys: ${{ runner.os }}-${{ env.GHC_FOR_RELEASE }}-
-
-      - name: Validate build
-        run: sh validate.sh ${{ env.COMMON_FLAGS }} -s build
-
-      - name: "Validate lib-suite-extras --extra-hc ghc-${{ matrix.extra-ghc }}"
-        env:
-          EXTRA_GHC: ghc-${{ matrix.extra-ghc }}
-        run: sh validate.sh ${{ env.COMMON_FLAGS }} --lib-only -s lib-suite-extras --extra-hc "${{ env.EXTRA_GHC }}"
-
   build-alpine:
     name: Build statically linked using alpine
     runs-on: "ubuntu-latest"
@@ -419,19 +332,4 @@ jobs:
           cabal-head-Linux-static-x86_64.tar.gz
           cabal-head-macOS-x86_64.tar.gz
 
-  # We use this job as a summary of the workflow
-  # It will fail if any of the previous jobs does it
-  # This way we can use it exclusively in branch protection rules
-  # and abstract away the concrete jobs of the workflow, including their names
-  validate-post-job:
-    if: always()
-    name: Validate post job
-    runs-on: ubuntu-latest
-    # IMPORTANT! Any job added to the workflow should be added here too
-    needs: [validate, validate-old-ghcs, build-alpine, dogfooding]
 
-    steps:
-      - run: |
-          echo "jobs info: ${{ toJSON(needs) }}"
-      - if: contains(needs.*.result, 'failure') || contains(needs.*.result, 'cancelled')
-        run: exit 1