refactor pipelines #3

	name: Backend Build Stage

	on:
	push:
	# paths:
	# - backend/**

	pull_request:
	# paths:
	# - backend/**

	defaults:
	run:
	working-directory: ./backend

	jobs:
	build:
	runs-on: ubuntu-latest
	steps:
	- name: Checkout code
	uses: actions/checkout@v4

	- name: Set up JDK 17
	uses: actions/setup-java@v4
	with:
	java-version: '17'
	distribution: 'temurin'

	- name: Cache Gradle dependencies
	uses: actions/cache@v2
	with:
	path: .gradle
	key: gradle-${{ runner.os }}-${{ hashFiles('*/.gradle', '**/gradle-wrapper.properties') }}
	restore-keys: \|
	gradle-${{ runner.os }}-

	- name: Clean Gradle environment
	run: \|
	export GRADLE_USER_HOME=`pwd`/.gradle
	./gradlew clean

	- name: Build
	run: ./gradlew assemble

	# Specify artifacts to be saved from this job
	# Adjust the path to match your project structure
	# You can adjust the expiration time as needed
	# Learn more: https://docs.github.com/en/actions/guides/storing-workflow-data-as-artifacts
	- name: Upload libs
	uses: actions/upload-artifact@v4
	with:
	name: libs
	path: build/libs/*.jar

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