Update ghc file

.gitlab-ci.yml

@@ -14,7 +14,7 @@ variables:
 ############################################################
 
 .debian:
-  image: "registry.gitlab.haskell.org/ghc/ci-images/x86_64-linux-deb9:$DOCKER_REV"
+  image: "registry.gitlab.haskell.org/ghc/ci-images/x86_64-linux-deb10:$DOCKER_REV"
   tags:
     - x86_64-linux
   variables:
@@ -527,15 +527,9 @@ release:windows:
 hlint:
   stage: hlint
   extends:
-    - .alpine:64bit
-  before_script:
-    - ./.gitlab/before_script/linux/alpine/install_deps.sh
+    - .debian
   script:
-    - ./.gitlab/script/hlint.sh
-  variables:
-    GHC_VERSION: "8.10.6"
-    CABAL_VERSION: "3.4.0.0"
-    JSON_VERSION: "0.0.4"
+    - curl -sSL https://raw.github.com/ndmitchell/hlint/master/misc/run.sh | sh -s -- -r lib/ test/
   allow_failure: true
   artifacts:
     expire_in: 2 week

README.md

@@ -24,6 +24,7 @@ Similar in scope to [rustup](https://github.com/rust-lang-nursery/rustup.rs), [p
      * [Env variables](#env-variables)
      * [Installing custom bindists](#installing-custom-bindists)
      * [Isolated Installs](#isolated-installs)
+     * [CI](#ci)
      * [Tips and tricks](#tips-and-tricks)
    * [Design goals](#design-goals)
    * [How](#how)
@@ -190,6 +191,126 @@ Examples:-
 5. you can even compile ghc to an isolated location.  
    - `ghcup compile ghc -j 4 -v 9.0.1 -b 8.10.5 -i /home/username/my/dir/ghc` 
    ---  
+
+### CI
+
+On windows, ghcup can be installed automatically on a CI runner like so:
+
+```ps
+Set-ExecutionPolicy Bypass -Scope Process -Force;[System.Net.ServicePointManager]::SecurityProtocol = [System.Net.ServicePointManager]::SecurityProtocol -bor 3072;Invoke-Command -ScriptBlock ([ScriptBlock]::Create((Invoke-WebRequest https://www.haskell.org/ghcup/sh/bootstrap-haskell.ps1 -UseBasicParsing))) -ArgumentList $false,$true,$true,$false,$false,$false,$false,"C:\"
+```
+
+On linux/darwin/freebsd, run the following on your runner:
+
+```sh
+curl --proto '=https' --tlsv1.2 -sSf https://get-ghcup.haskell.org | BOOTSTRAP_HASKELL_NONINTERACTIVE=1 BOOTSTRAP_HASKELL_MINIMAL=1 sh
+```
+
+This will just install `ghcup` and on windows additionally `msys2`.
+
+#### Example github workflow
+
+On github workflows you can use https://github.com/haskell/actions/
+
+If you want to install ghcup manually though, here's an example config:
+
+```yml
+name: Haskell CI
+
+on:
+  push:
+    branches: [ master ]
+  pull_request:
+    branches: [ master ]
+
+jobs:
+  build-cabal:
+
+    runs-on: ${{ matrix.os }}
+    strategy:
+      fail-fast: false
+      matrix:
+        os: [ubuntu-latest, macOS-latest, windows-latest]
+        ghc: ['8.10.7', '9.0.1']
+        cabal: ['3.4.0.0']
+
+    steps:
+    - uses: actions/checkout@v2
+
+    - if: matrix.os == 'windows-latest'
+      name: Install ghcup on windows
+      run: Set-ExecutionPolicy Bypass -Scope Process -Force;[System.Net.ServicePointManager]::SecurityProtocol = [System.Net.ServicePointManager]::SecurityProtocol -bor 3072;Invoke-Command -ScriptBlock ([ScriptBlock]::Create((Invoke-WebRequest https://www.haskell.org/ghcup/sh/bootstrap-haskell.ps1 -UseBasicParsing))) -ArgumentList $false,$true,$true,$false,$false,$false,$false,"C:\"
+
+    - if: matrix.os != 'windows-latest'
+      name: Install ghcup on non-windows
+      run: curl --proto '=https' --tlsv1.2 -sSf https://get-ghcup.haskell.org | BOOTSTRAP_HASKELL_NONINTERACTIVE=1 BOOTSTRAP_HASKELL_MINIMAL=1 sh
+
+    - if: matrix.os == 'windows-latest'
+      run: echo "/c/ghcup/bin" >> $GITHUB_PATH
+      shell: bash
+
+    - name: Install ghc/cabal
+      run: |
+        ghcup install ghc ${{ matrix.ghc }}
+        ghcup install cabal ${{ matrix.cabal }}
+      shell: bash
+
+    - name: Update cabal index
+      run: cabal update
+      shell: bash
+
+    - name: Build
+      run: cabal build --enable-tests --enable-benchmarks
+      shell: bash
+
+    - name: Run tests
+      run: cabal test
+      shell: bash
+
+    - name: Run benches
+      run: cabal bench
+      shell: bash
+
+  build-stack:
+    name: Stack ${{ matrix.stack }} ${{ matrix.os }}
+    runs-on: ${{ matrix.os }}
+    strategy:
+      fail-fast: false
+      matrix:
+        os: [ubuntu-latest, macOS-latest, windows-latest]
+        stack: ['latest']
+
+    steps:
+    - uses: actions/checkout@v2
+
+    - if: matrix.os == 'windows-latest'
+      name: Install ghcup on windows
+      run: Set-ExecutionPolicy Bypass -Scope Process -Force;[System.Net.ServicePointManager]::SecurityProtocol = [System.Net.ServicePointManager]::SecurityProtocol -bor 3072;Invoke-Command -ScriptBlock ([ScriptBlock]::Create((Invoke-WebRequest https://www.haskell.org/ghcup/sh/bootstrap-haskell.ps1 -UseBasicParsing))) -ArgumentList $false,$true,$true,$false,$false,$false,$false,"C:\"
+
+    - if: matrix.os != 'windows-latest'
+      name: Install ghcup on non-windows
+      run: curl --proto '=https' --tlsv1.2 -sSf https://get-ghcup.haskell.org | BOOTSTRAP_HASKELL_NONINTERACTIVE=1 BOOTSTRAP_HASKELL_MINIMAL=1 sh
+
+    - if: matrix.os == 'windows-latest'
+      run: echo "/c/ghcup/bin" >> $GITHUB_PATH
+      shell: bash
+
+    - name: Install stack
+      run: ghcup install stack ${{ matrix.stack }}
+      shell: bash
+
+    - name: Build
+      run: stack build
+      shell: bash
+
+    - name: Run tests
+      run: stack test
+      shell: bash
+
+    - name: Run benches
+      run: stack bench
+      shell: bash
+```
    
 ### Tips and tricks
 

bootstrap-haskell

@@ -372,6 +372,13 @@ adjust_bashrc() {
 								echo "[[ -f ~/.bashrc ]] && source ~/.bashrc # ghcup-env" >> "${HOME}/.bash_profile"
 							fi
 							;;
+						MSYS*|MINGW*)
+							if [ ! -e "${HOME}/.bash_profile" ] ; then
+								echo '# generated by ghcup' > "${HOME}/.bash_profile"
+								echo 'test -f ~/.profile && . ~/.profile' >> "${HOME}/.bash_profile"
+								echo 'test -f ~/.bashrc && . ~/.bashrc' >> "${HOME}/.bash_profile"
+							fi
+							;;
 					esac
 					break ;;
 

bootstrap-haskell.ps1

@@ -182,7 +182,7 @@ elevated command prompt:
 
 if ($GhcupBasePrefixEnv) {
   $defaultGhcupBasePrefix = $GhcupBasePrefixEnv
-} else {
+} elseif (!($InstallDir)) {
   $partitions = Get-CimInstance win32_logicaldisk
   $defaultGhcupBasePrefix = $null
   foreach ($p in $partitions){
@@ -211,10 +211,10 @@ if ($Silent -and !($InstallDir)) {
   $GhcupBasePrefix = $defaultGhcupBasePrefix
 } elseif ($InstallDir) {
   if (!(Test-Path -LiteralPath ('{0}' -f $InstallDir) -IsValid)) {
-    Print-Msg -color Red -msg "Not a valid directory!"
+    Print-Msg -color Red -msg "Not a valid directory! (InstallDir)"
     Exit 1
   } elseif (!(Split-Path -IsAbsolute -Path "$InstallDir")) {
-    Print-Msg -color Red -msg "Non-absolute Path specified!"
+    Print-Msg -color Red -msg "Non-absolute Path specified! (InstallDir)"
     Exit 1
   } else {
     $GhcupBasePrefix = $InstallDir
@@ -245,7 +245,20 @@ $null = [Environment]::SetEnvironmentVariable("GHCUP_INSTALL_BASE_PREFIX", $Ghcu
 
 
 $GhcupDir = ('{0}\ghcup' -f $GhcupBasePrefix)
-$MsysDir = ('{0}\msys64' -f $GhcupDir)
+if ($ExistingMsys2Dir) {
+  if (!(Test-Path -LiteralPath ('{0}' -f $ExistingMsys2Dir) -IsValid)) {
+    Print-Msg -color Red -msg "Not a valid directory! (ExistingMsys2Dir)"
+    Exit 1
+  } elseif (!(Split-Path -IsAbsolute -Path "$ExistingMsys2Dir")) {
+    Print-Msg -color Red -msg "Non-absolute Path specified! (ExistingMsys2Dir)"
+    Exit 1
+  } else {
+	$MsysDir = $ExistingMsys2Dir
+  }
+} else {
+	$MsysDir = ('{0}\msys64' -f $GhcupDir)
+}
+
 $Bash = ('{0}\usr\bin\bash' -f $MsysDir)
 if (!($BootstrapUrl)) {
   $BootstrapUrl = 'https://www.haskell.org/ghcup/sh/bootstrap-haskell'
@@ -400,6 +413,7 @@ if (!(Test-Path -Path ('{0}' -f $MsysDir))) {
 
     Print-Msg -msg 'Setting default home directory...'
     Exec "$Bash" '-lc' "sed -i -e 's/db_home:.*$/db_home: windows/' /etc/nsswitch.conf"
+
   } elseif ($msys2Decision -eq 1) {
     Print-Msg -color Yellow -msg 'Skipping MSys2 installation.'
     while ($true) {