refresh-resolvers #1587

	name: refresh-resolvers

	on:
	workflow_dispatch:
	schedule:
	# Run every 12h
	- cron: '30 /12 * *'

	jobs:
	resfresh-list:
	runs-on: ubuntu-latest
	steps:

	- name: Set up Python
	uses: actions/setup-python@v4
	with:
	python-version: '3.10'

	- name: checkout
	uses: actions/checkout@v2
	with:
	token: ${{ secrets.GITHUB_TOKEN }}

	- name: Checkout DNS Validator
	uses: actions/checkout@v2
	with:
	repository: 'vortexau/dnsvalidator'
	path: dnsvalidator

	- name: Install DNS Validator
	run: \|
	cd dnsvalidator
	python3 setup.py install

	- name: Install contextvars
	run: pip3 install contextvars

	# It needs to be done because the current 6 hours limit for
	# the Github actions is not sufficient to check all of them
	- name: Get the resolvers list and trim it
	run: curl -LO https://public-dns.info/nameservers.txt && head -n 20000 nameservers.txt > raw-resolvers.txt

	- name: Generate new resolvers
	run: dnsvalidator -tL ./raw-resolvers.txt -threads 30 --silent > ~/resolvers.txt

	# Enable tmate debugging of manually-triggered workflows if the input option was provided
	#- name: Setup tmate session
	# uses: mxschmitt/action-tmate@v3

	- name: Set current date
	run: echo "NOW=$(date +'%Y-%m-%d')" >> $GITHUB_ENV

	- name: Commit changes
	run: \|
	mv ~/resolvers.txt .
	git config --local user.email "[email protected]"
	git config --local user.name "Edu4rdSHL"
	git add resolvers.txt
	git commit -m "${NOW} update."

	- name: Push changes
	uses: ad-m/github-push-action@master
	with:
	github_token: ${{ secrets.GITHUB_TOKEN }}
	branch: main

	- uses: gautamkrishnar/keepalive-workflow@v1

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