publish snapshots for each main commit #1

	name: Publish snapshot to the Maven Central Repository

	on:
	workflow_dispatch:
	push:
	branches: ["main", "snapshot"]

	concurrency:
	group: publish-snapshot
	cancel-in-progress: true

	jobs:
	publish-snapshot:
	runs-on: ubuntu-latest
	services:
	s3mock:
	image: adobe/s3mock:3.11.0
	ports:
	- 9090:9090
	env:
	initialBuckets: zarr-test-bucket
	defaults:
	run:
	shell: bash

	steps:
	- uses: actions/checkout@v5
	with:
	submodules: true

	- name: Set up JDK
	uses: actions/setup-java@v4
	with:
	java-version: "11"
	distribution: "temurin"
	cache: maven

	- name: Set up Python
	uses: actions/setup-python@v6
	with:
	python-version: "3.11"

	- name: Install uv
	uses: astral-sh/setup-uv@v6

	- name: Download testdata
	run: \|
	mkdir testoutput
	curl https://static.webknossos.org/data/zarr_v3/l4_sample.zip -o testdata/l4_sample.zip
	cd testdata
	unzip l4_sample.zip

	- name: Set SNAPSHOT version
	run: \|
	BASE=$(mvn help:evaluate -Dexpression=project.version -q -DforceStdout)
	BASE=${BASE%-SNAPSHOT}
	mvn versions:set -DnewVersion="${BASE}-SNAPSHOT" -DgenerateBackupPoms=false

	- name: Publish snapshot
	run: \|
	mkdir -p ~/.m2
	echo "<settings><servers><server><id>central</id><username>$MAVEN_USERNAME</username><password>$MAVEN_PASSWORD</password></server></servers></settings>" > ~/.m2/settings.xml
	mvn --batch-mode --no-transfer-progress deploy -DargLine="-Xmx6g" -DrunS3Tests=true -Dgpg.skip=true
	env:
	MAVEN_OPTS: "-Xmx6g"
	MAVEN_USERNAME: ${{ secrets.OSSRH_USERNAME }}
	MAVEN_PASSWORD: ${{ secrets.OSSRH_TOKEN }}

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