update #180

	name: update

	on:
	schedule:
	- cron: '0 10 * * 3'

	jobs:
	update:
	if: ${{ startsWith(github.repository, 'ruby/') }}
	name: update zonetab
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v4
	- name: Set up Ruby
	run: sudo apt-get --no-install-recommends -q -y install ruby-dev gperf
	- name: Install dependencies
	run: sudo gem install --no-document nokogiri
	- name: Update zonetab
	working-directory: ext/date
	run: \|
	make -f prereq.mk update-zonetab
	make -f prereq.mk zonetab.h
	env:
	top_srcdir: ../..
	srcdir: .
	RUBY: /usr/bin/ruby
	- name: Check diffs
	id: diff
	run: \|
	git diff --no-ext-diff --ignore-submodules --exit-code \|\|
	echo "diff=true" >> $GITHUB_OUTPUT
	- name: Commit
	run: \|
	git commit --message="Update zonetab.h at $(date +%F)" ext/date
	git pull --ff-only origin ${GITHUB_REF#refs/heads/}
	git push origin ${GITHUB_REF#refs/heads/}
	env:
	EMAIL: [email protected]
	GIT_AUTHOR_NAME: Nobuyoshi Nakada
	GIT_COMMITTER_NAME: Nobuyoshi Nakada
	if: ${{ steps.diff.outputs.diff }}

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