Using git-restore-mtime plugin to restore pdf file timestamps and gen… #12

	name: Update PDFs

	on:
	push:
	branches:
	- main
	pull_request:
	branches:
	- main
	workflow_dispatch:

	jobs:
	build:
	runs-on: ubuntu-24.04

	steps:
	- name: Check out repository
	uses: actions/checkout@v4
	with:
	# git-restore-mtime-bare uses the ref log to find the correct timestamp
	# for each file. This requires a full git history. The default value (1)
	# creates a shallow checkout.
	fetch-depth: 0

	# Fix timestamps
	- name: restore timestamps
	uses: chetan/git-restore-mtime-action@v2

	- name: Install dependencies
	run: \|
	sudo apt-get update
	sudo apt-get install -y \
	pandoc \
	lmodern \
	texlive-xetex \
	texlive-latex-recommended \
	texlive-fonts-recommended \
	fonts-dejavu

	- name: Regenerate all documentation
	run: make all

	- name: Commit and push changes if there are any
	run: \|
	git add -f pdf/
	git config --global user.name 'github-actions[bot]'
	git config --global user.email 'github-actions[bot]@users.noreply.github.com'
	if [ -n "$(git status --porcelain)" ]; then
	git commit -m 'Update PDFs'
	git push
	else
	echo "No changes to commit"
	fi

Provide feedback