Add CI #11

Workflow file for this run

	name: CI
	on:
	push:
	branches:
	- main
	pull_request:

	concurrency:
	group: ${{ github.head_ref \|\| github.run_id }}
	cancel-in-progress: true

	jobs:
	# Stack
	stack:
	name: Stack / GHC ${{ matrix.ghc }}
	runs-on: ubuntu-latest
	strategy:
	matrix:
	ghc: ["8.0", "8.2", "8.4", "8.6", "8.8", "8.10", "9.0", "9.2", "9.4", "9.6", "9.8"]
	fail-fast: false
	steps:
	- name: Checkout
	uses: actions/checkout@v4
	with:
	show-progress: false

	- name: Setup Haskell
	uses: haskell-actions/setup@v2
	id: setup-haskell
	with:
	enable-stack: true
	stack-no-global: true

	- name: General Setup
	run: \|
	cp .ci/stack-${{ matrix.ghc }}.yaml stack.yaml
	# Print out some information for debugging purposes
	ghc --version
	stack --version
	cat stack.yaml

	- name: Restore cached dependencies
	uses: actions/cache/restore@v3
	id: cache
	with:
	path: ${{ steps.setup-haskell.outputs.stack-root }}/snapshots
	key:
	${{ runner.os }}-stack-${{ matrix.ghc }}-${{
	hashFiles('prettyprinter-interp.cabal', 'stack.yaml') }}
	restore-keys: ${{ runner.os }}-stack-${{ matrix.ghc }}-

	- name: Install dependencies
	run: stack build --test --only-dependencies

	# Cache dependencies already at this point, so that we do not have to
	# rebuild them should the subsequent steps fail
	- name: Save cached dependencies
	uses: actions/cache/save@v3
	# Trying to save over an existing cache gives distracting
	# "Warning: Cache save failed." since they are immutable
	if: steps.cache.outputs.cache-hit != 'true'
	with:
	path: ${{ steps.setup-haskell.outputs.stack-root }}/snapshots
	key: ${{ steps.cache.outputs.cache-primary-key }}

	- name: Build
	run : stack build

	- name: Test
	run : stack test

	# Cabal
	cabal:
	name: Cabal / GHC ${{ matrix.ghc }} ${{ matrix.project-variant }}
	runs-on: ubuntu-latest
	strategy:
	matrix:
	ghc:
	- "8.0.2"
	- "8.2.2"
	- "8.4.4"
	- "8.6.5"
	- "8.8.4"
	- "8.10.7"
	- "9.0.2"
	- "9.0.2"
	- "9.2.8"
	- "9.4.7"
	- "9.6.3"
	project-variant: [""]
	include:
	- ghc: 8.0.2
	project-variant: -lower
	- ghc: 9.8.1
	project-variant: -upper

	fail-fast: false
	steps:
	- name: Checkout
	uses: actions/checkout@v4
	with:
	show-progress: false

	- name: Setup Haskell
	uses: haskell-actions/setup@v2
	id: setup-haskell
	with:
	ghc-version: ${{ matrix.ghc }}
	cabal-update: false

	- name: General Setup
	run: \|
	cp .ci/cabal.project.local${{ matrix.project-variant}} \
	cabal.project.local
	# Print out some information for debugging purposes
	ghc --version
	cabal --version
	cat cabal.project.local

	- name: Setup CI
	# This generates dist-newstyle/cache/plan.json with hashes for all
	# dependencies, for cache invalidation.
	run: \|
	cabal v2-update
	cabal v2-build all --enable-tests --dry-run

	- name: Restore cached dependencies
	uses: actions/cache/restore@v3
	id: cache
	env:
	key:
	${{ runner.os }}-ghc-${{ matrix.ghc }}-cabal-${{
	steps.setup-haskell.outputs.cabal-version }}${{
	matrix.project-variant }}
	with:
	path: ${{ steps.setup-haskell.outputs.cabal-store }}
	key:
	${{ env.key }}-${{ hashFiles('cabal.project.local',
	'dist-newstyle/cache/plan.json') }}
	restore-keys: ${{ env.key }}-

	- name: Install dependencies
	run: cabal v2-build all --enable-tests --only-dependencies

	# Cache dependencies already at this point, so that we do not have to
	# rebuild them should the subsequent steps fail
	- name: Save cached dependencies
	uses: actions/cache/save@v4
	# Trying to save over an existing cache gives distracting
	# "Warning: Cache save failed." since they are immutable
	if: steps.cache.outputs.cache-hit != 'true'
	with:
	path: ${{ steps.setup-haskell.outputs.cabal-store }}
	key: ${{ steps.cache.outputs.cache-primary-key }}

	- name: Build
	run: cabal v2-build all --enable-tests

	- name: Test
	run: cabal v2-test --enable-tests --test-show-details=direct

	# Mechanism copied from https://github.com/clash-lang/clash-compiler/
	all:
	name: All jobs finished
	if: ${{ !cancelled() }}
	needs:
	- stack
	- cabal
	runs-on: ubuntu-latest
	steps:
	- name: Checkout
	uses: actions/checkout@v4
	with:
	show-progress: false

	- name: Check dependencies for failures
	run: \|
	# Test all dependencies for success/failure
	set -x
	# True if at least one dependency succeeded
	success="${{ contains(needs.*.result, 'success') }}"
	# True if at least one dependency failed
	fail="${{ contains(needs.*.result, 'failure') }}"
	set x

	# Test whether success/fail variables contain sane values
	if [[ "${success}" != "true" && "${success}" != "false" ]]; then exit 1; fi
	if [[ "${fail}" != "true" && "${fail}" != "false" ]]; then exit 1; fi

	# We want to fail if one or more dependencies fail. For safety, we introduce
	# a second check: if no dependencies succeeded something weird is going on.
	if [[ "${fail}" == "true" \|\| "${success}" == "false" ]]; then
	echo "One or more dependency failed, or no dependency succeeded."
	exit 1
	fi

	# Currently, ubuntu-latest already has it installed, but keep it around in
	# case they ever change that
	#
	# - name: Install dependencies
	# run: \|
	# sudo apt-get update
	# sudo apt-get -y install python3-yaml

	- name: Check that the 'all' job depends on all other jobs
	run: .ci/all_check.py

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