readme: add pf button #58

	name: Build PDF document
	on:
	push:
	branch:
	- master
	workflow_dispatch:

	jobs:
	build-pdf:
	runs-on: ubuntu-latest
	steps:
	- name: check out code
	uses: actions/checkout@v4
	with:
	fetch-depth: 0 # otherwise, you will failed to push refs to dest repo
	- name: install python3
	run: \|
	sudo apt -y update
	sudo apt -y install python3 python3-pip
	sudo apt -y install gnuplot
	- name: install python3 dependencies
	run: \|
	python3 -m pip install -r requirements.txt
	- name: setup texlive
	uses: teatimeguest/setup-texlive-action@v3
	with:
	version: 2024
	packages: \|
	# to list local packages use: tlmgr info --list --data name
	scheme-basic
	latexmk
	cmap
	cancel
	tex-gyre
	fncychap
	float
	wrapfig
	capt-of
	framed
	babel-polish
	fancyvrb
	upquote
	needspace
	tabulary
	varwidth
	booktabs
	parskip
	titlesec
	etoolbox
	makecell
	caption
	- name: build PDF
	run: make latexpdf
	- name: extract file name
	run: \|
	# extract filename from conf.py (it is a value of variable 'project' in lowercase)
	echo "filename=$(grep project conf.py \| gawk '{gsub(/'\''/,"",$3); print tolower($3)}')" >> $GITHUB_ENV
	- name: do some trick ;-)
	shell: bash
	run: \|
	echo "The file name is $filename"
	stat "_build/latex/${filename}.pdf"
	mv "_build/latex/${filename}.pdf" ..
	rm -rf *
	git add .
	git config user.name gucio321
	git config user.email [email protected]
	mv ../${filename}.pdf .
	git add .
	git commit --amend --no-edit
	- name: Push changes
	uses: ad-m/github-push-action@master
	with:
	github_token: ${{ secrets.GITHUB_TOKEN }}
	branch: pdf
	force: true

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