fix #219

	name: Generate document

	on:
	push:
	branches: [ 'main' ]
	workflow_dispatch:
	branches: [ '*' ]

	jobs:
	build:
	runs-on: ubuntu-latest

	steps:
	- uses: actions/checkout@v3
	with:
	submodules: true
	- name: Install Roswell
	env:
	LISP: ${{ matrix.lisp }}
	run: \|
	curl -L https://raw.githubusercontent.com/roswell/roswell/v22.12.14.113/scripts/install-for-ci.sh \| sh
	- name: Generate document and create pull request
	env:
	GH_TOKEN: ${{ github.token }}
	run: \|
	set -ex

	# workaround for sbcl and log4cl combination problems
	mkdir ~/common-lisp
	cd ~/common-lisp
	git clone https://github.com/sharplispers/log4cl.git
	cd -

	ros config set dynamic-space-size 2048

	ros install lem-project/async-process lem

	export PATH=$HOME/.roswell/bin:$PATH

	cd $(ros -e '(princ (ql:where-is-system :lem))')

	document_file=docs/default-keybindings.md

	ros -s lem -s lem/extensions -e "(lem-documentation-mode:generate-markdown-file \"${document_file}\" :command)"

	if [ -z "$(git diff ${document_file})" ]; then
	exit 0
	fi

	git config --global user.email "github-actions[bot]@users.noreply.github.com"
	git config --global user.name "github-actions[bot]"

	branch_name="update-docs-$(date '+%Y%m%d-%H%M%S')"
	git checkout -b $branch_name
	git add ${document_file}
	git commit -m "update ${document_file}"
	git push origin $branch_name

	gh pr create -B main -t "update ${document_file} $(date '+%Y%m%d-%H%M%S')" -b ''

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