Fix Windows GitHub Action

- msys2 should be installed
- there is cabal and GHC, but we want to be sure about
  versions, so we reinstall.
- Reinstalling GHC doesnt' "just work", so we uninstall it first.
  This takes time, but makes CI work.

Author: phadej

.github/workflows/artifacts.yml

@@ -94,14 +94,12 @@ jobs:
     name: Artifact on Windows
     runs-on: windows-latest
     steps:
-      - name: Configure Chocolatey
-        run: choco source add -n mistuke -s https://www.myget.org/F/mistuke/api/v2
-      - name: Install msys2
-        run: choco install -y msys2
       - name: Install Cabal
-        run: choco install -y cabal --version 3.0.0.0
+        run: choco install -fy cabal --version 3.0.0.0
       - name: Install GHC
-        run: choco install -y ghc --version 8.6.5
+        run: |
+          choco uninstall -y ghc
+          choco install -y ghc --version 8.6.5
       - name: Set PATH
         run: |
           [Environment]::GetEnvironmentVariable("Path")

.github/workflows/windows.yml

@@ -23,28 +23,28 @@ jobs:
     name: test ghc-8.6.5
     runs-on: windows-latest
     steps:
-      - name: Configure Chocolatey
-        run: choco source add -n mistuke -s https://www.myget.org/F/mistuke/api/v2
-      - name: Install msys2
-        run: choco install -y msys2
       - name: Install Cabal
-        run: choco install -y cabal --version 3.0.0.0
+        run: choco install -fy cabal --version 3.2.0.0
       - name: Install GHC
-        run: choco install -y ghc --version 8.6.5
+        run: |
+          choco uninstall -y ghc --all-versions
+          choco install -y ghc --version 8.6.5
       - name: Set PATH
         run: |
           [Environment]::GetEnvironmentVariable("Path")
-          Write-Host "::add-path::C:\ProgramData\chocolatey\lib\cabal\tools\cabal-3.0.0.0"
-          Write-Host "::add-path::C:\ProgramData\chocolatey\lib\ghc\tools\ghc-8.6.5\bin"
+          Write-Host "::add-path::C:\ProgramData\Chocolatey\lib\cabal\tools\cabal-3.2.0.0"
+          Write-Host "::add-path::C:\ProgramData\Chocolatey\lib\ghc\tools\ghc-8.6.5\bin"
+          [Environment]::GetEnvironmentVariable("Path")
       - name: Print versions
         run: |
-          ghc --version
+          [Environment]::GetEnvironmentVariable("Path")
           cabal --version
+          ghc --version
           cabal user-config init -a "http-transport: plain-http" -a "store-dir: C:\SR" -f -v3
       - uses: actions/cache@v1
         with:
           path: C:\SR
-          key: linux-store-meta
+          key: windows-store-meta
       - name: Update Hackage index
         run: cabal v2-update
       - uses: actions/checkout@v2

boot/ci-artifacts.template.yml

@@ -94,14 +94,12 @@ jobs:
     name: Artifact on Windows
     runs-on: windows-latest
     steps:
-      - name: Configure Chocolatey
-        run: choco source add -n mistuke -s https://www.myget.org/F/mistuke/api/v2
-      - name: Install msys2
-        run: choco install -y msys2
       - name: Install Cabal
-        run: choco install -y cabal --version 3.0.0.0
+        run: choco install -fy cabal --version 3.0.0.0
       - name: Install GHC
-        run: choco install -y ghc --version 8.6.5
+        run: |
+          choco uninstall -y ghc
+          choco install -y ghc --version 8.6.5
       - name: Set PATH
         run: |
           [Environment]::GetEnvironmentVariable("Path")

boot/ci-windows.template.yml

@@ -30,28 +30,28 @@ jobs:
     needs: test-windows-{{ mangleVersion needs }}
 {% endfor %}
     steps:
-      - name: Configure Chocolatey
-        run: choco source add -n mistuke -s https://www.myget.org/F/mistuke/api/v2
-      - name: Install msys2
-        run: choco install -y msys2
       - name: Install Cabal
-        run: choco install -y cabal --version 3.0.0.0
+        run: choco install -fy cabal --version 3.2.0.0
       - name: Install GHC
-        run: choco install -y ghc --version {{ job.version }}
+        run: |
+          choco uninstall -y ghc --all-versions
+          choco install -y ghc --version {{ job.version }}
       - name: Set PATH
         run: |
           [Environment]::GetEnvironmentVariable("Path")
-          Write-Host "::add-path::C:\ProgramData\chocolatey\lib\cabal\tools\cabal-3.0.0.0"
-          Write-Host "::add-path::C:\ProgramData\chocolatey\lib\ghc\tools\ghc-{{ job.version }}\bin"
+          Write-Host "::add-path::C:\ProgramData\Chocolatey\lib\cabal\tools\cabal-3.2.0.0"
+          Write-Host "::add-path::C:\ProgramData\Chocolatey\lib\ghc\tools\ghc-{{ job.version }}\bin"
+          [Environment]::GetEnvironmentVariable("Path")
       - name: Print versions
         run: |
-          ghc --version
+          [Environment]::GetEnvironmentVariable("Path")
           cabal --version
+          ghc --version
           cabal user-config init -a "http-transport: plain-http" -a "store-dir: C:\SR" -f -v3
       - uses: actions/cache@v1
         with:
           path: C:\SR
-          key: linux-store-meta
+          key: windows-store-meta
       - name: Update Hackage index
         run: cabal v2-update
       - uses: actions/checkout@v2