github: action to refresh builder-alpine.${ALPINE_BRANCH} image #1

	---
	name: alpine docker builder image
	on:
	push:
	branches:
	- master
	# Allows you to run this workflow manually from the Actions tab
	workflow_dispatch:

	env:
	IMAGE_NAME: kamailio-ci
	SOURCE_BRANCH: ${{ github.ref_name }}
	DOCKER_REPO: ghcr.io/kamailio/kamailio-ci
	REFRESH_ONLY: true

	jobs:
	x86_64:
	runs-on: ubuntu-latest
	permissions:
	contents: read
	packages: write
	steps:
	- uses: actions/checkout@v4
	with:
	fetch-depth: 2

	- name: print latest_commit
	run: echo ${{ github.sha }}

	- name: Get changed files
	id: changed-files
	uses: tj-actions/changed-files@v39
	with:
	since_last_remote_commit: true

	- name: Dockerfile.builder
	id: changed-files-builder
	uses: tj-actions/changed-files@v39
	with:
	files: alpine/Dockerfile.builder

	- name: Login to GitHub Container Registry
	if: steps.changed-files-builder.outputs.any_changed == 'true'
	uses: docker/login-action@v3
	with:
	registry: ghcr.io
	username: ${{ github.repository_owner }}
	password: ${{ secrets.GITHUB_TOKEN }}

	- name: generate builder
	if: steps.changed-files-builder.outputs.any_changed == 'true'
	run: \|
	./hooks/pre_build

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