hledger/.github/workflows/windows.yml

# Light Windows CI tests: build and run functional tests with one GHC version.
# GHC 8.8.2 for now to avoid https://gitlab.haskell.org/ghc/ghc/issues/17926.
#
# Runs: periodically on master, and on notable push to ci-windows.

name: windows CI

on:
  schedule:
  - cron: "0 07 * * 0"  # sunday midnight pacific

  push:
    branches: [ ci-windows ]
    paths:
      - '.github/workflows/windows.yml'
      - 'stack*.yaml'
      - 'hledger-lib/**'
      - 'hledger/**'
      - 'hledger-ui/**'
      - 'hledger-web/**'
      # - 'tests/**'
      - '!**.md'
      - '!**.1'
      - '!**.5'
      - '!**.info'
      - '!**.txt'

jobs:
  build:
    runs-on: windows-latest
    steps:

    - name: Check out
      uses: actions/checkout@v2
      # deep clone so we can restore timestamps (see below)
      with:
        fetch-depth: 0

    # Restore timestamps to help stack not rebuild unchanged files.
    # https://stackoverflow.com/questions/60906336
    # https://stackoverflow.com/a/36243002/84401
    # https://www.reddit.com/r/haskell/comments/g00ldn/haskell_stack_on_github_actions/
    - name: Restore source file timestamps
      shell: bash
      run: |
        git ls-tree -r --name-only HEAD | while read filename; do
          TS="$(git log -1 --format="%ct" -- ${filename})"
          touch "${filename}" -mt "$(date --date="@$TS" "+%Y%m%d%H%M.%S")"
        done        

    # things to be cached/restored:

    - name: Cache stack global package db
      id:   stack-global-package-db
      uses: actions/cache@v2
      with:
        path: C:\Users\runneradmin\AppData\Roaming\stack\
        key:          ${{ runner.os }}-appdata-roaming-stack-${{ hashFiles('**.yaml') }}
        restore-keys: ${{ runner.os }}-appdata-roaming-stack

    - name: Cache stack programs dir   # ghc, ghc-included packages and their haddocks, mingw, msys2
      id:   stack-programs-dir
      uses: actions/cache@v2
      with:
        path: C:\Users\runneradmin\AppData\Local\Programs\stack\
        # which files signal a change in stack's global db ?
        # **.yaml includes */package.yaml and stack.yaml* (too many), and hopefully no other changing yamls
        key:          ${{ runner.os }}-appdata-local-programs-stack-${{ hashFiles('**.yaml') }}
        restore-keys: ${{ runner.os }}-appdata-local-programs-stack

    - name: Cache .stack-work
      uses: actions/cache@v2
      with:
        path: .stack-work
        key:          ${{ runner.os }}-stack-work-${{ hashFiles('**.yaml') }}
        restore-keys: ${{ runner.os }}-stack-work

    - name: Cache hledger-lib/.stack-work
      uses: actions/cache@v2
      with:
        path: hledger-lib/.stack-work
        key:          ${{ runner.os }}-hledger-lib-stack-work-${{ hashFiles('hledger-lib/package.yaml') }}
        restore-keys: ${{ runner.os }}-hledger-lib-stack-work

    - name: Cache hledger/.stack-work
      uses: actions/cache@v2
      with:
        path: hledger/.stack-work
        key:          ${{ runner.os }}-hledger-stack-work-${{ hashFiles('hledger/package.yaml') }}
        restore-keys: ${{ runner.os }}-hledger-stack-work

    - name: Cache hledger-ui/.stack-work
      uses: actions/cache@v2
      with:
        path: hledger-ui/.stack-work
        key:          ${{ runner.os }}-hledger-ui-stack-work-${{ hashFiles('hledger-ui/package.yaml') }}
        restore-keys: ${{ runner.os }}-hledger-ui-stack-work

    - name: Cache hledger-web/.stack-work
      uses: actions/cache@v2
      with:
        path: hledger-web/.stack-work
        key:          ${{ runner.os }}-hledger-web-stack-work-${{ hashFiles('hledger-web/package.yaml') }}
        restore-keys: ${{ runner.os }}-hledger-web-stack-work

    # - name: showStuff
    #   shell: bash
    #   run: |
    #     ls -lFRa /c/users/runneradmin/appdata/roaming/stack
    #     ls -lFRa /c/users/runneradmin/appdata/local/programs/stack

    # actions:

    # - name: Add stack local bin to PATH
    #   run: echo "::add-path::C:\Users\runneradmin\AppData\Roaming\stack\local\bin"

    - name: Install stack
      #if: steps.stack-programs-dir.outputs.cache-hit != 'true'
      # this step is needed to get stack.exe into PATH, for now
      run: |
        curl -skL -o stack.zip http://www.stackage.org/stack/windows-x86_64
        7z x stack.zip -oC:\Windows stack.exe
        stack --version        

    # resolver lts-15.3 to avoid GHC 8.8.3 access violation, https://gitlab.haskell.org/ghc/ghc/issues/17926:

    - name: Install GHC
      # if: steps.stack-programs-dir.outputs.cache-hit != 'true'
      # set PATH=C:\Users\runneradmin\AppData\Local\Programs\stack\local\bin;%PATH%
      run: |
        stack --resolver=lts-15.3 --no-terminal setup --install-ghc        

    # - name: Install shelltestrunner
    ## - export PATH=~/.local/bin:$PATH
    # - if [[ ! -x ~/.local/bin/shelltest ]]; then stack install shelltestrunner-1.9; fi
    # - shelltest --version

    - name: Install haskell deps
      run: |
        stack --resolver=lts-15.3 --no-terminal build --only-dependencies        

    - name: Build hledger executables
      run: |
        stack --resolver=lts-15.3 --no-terminal install --ghc-options=-Werror        
      # --pedantic

    # run hledger-lib/hledger functional tests, skipping the ones for addons
    ## - export PATH=~/.local/bin:$PATH
    #- COLUMNS=80 stack exec -- shelltest --execdir -j16 tests -x /bin -x /addons

    # artifacts:

    - name: Gather executables
      run: |
        mkdir tmp
        cd tmp
        mkdir hledger
        cd hledger
        copy C:\Users\runneradmin\AppData\Roaming\local\bin\hledger.exe .
        copy C:\Users\runneradmin\AppData\Roaming\local\bin\hledger-web.exe .
                     
    - name: Create executables artifact
      uses: actions/upload-artifact@v2
      with:
        name: hledger-windows
        path: tmp/hledger