jvm-bindings.yaml

name: JVM bindings

# The Java and Kotlin bindings are built with Maven directly rather than Nix
# because scip-kotlin-bindings depends on scip-java-bindings as a Maven
# artifact, which nixpkgs' offline `maven.buildMavenPackage` sandbox cannot
# resolve from the sibling derivation.

on:
  pull_request:
    paths:
      - bindings/java/**
      - bindings/kotlin/**
      - cmd/scip/version.txt
      - scip.proto
      - .github/workflows/jvm-bindings.yaml

permissions:
  contents: read

concurrency:
  group: jvm-bindings-${{ github.head_ref || github.ref }}
  cancel-in-progress: true

jobs:
  build:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v6

      - uses: actions/setup-java@v5
        with:
          distribution: temurin
          java-version: 11
          cache: maven

      - name: Validate pom.xml versions match cmd/scip/version.txt
        run: |
          set -euo pipefail
          sudo apt-get install -qq -y libxml2-utils
          expected=$(cat cmd/scip/version.txt)
          xpath='/*[local-name()="project"]/*[local-name()="version"]/text()'
          for pom in bindings/java/pom.xml bindings/kotlin/pom.xml; do
            actual=$(xmllint --xpath "$xpath" "$pom")
            if [ "$actual" != "$expected" ]; then
              echo "::error file=$pom::version is '$actual', expected '$expected'"
              exit 1
            fi
          done

      - name: Build scip-java-bindings and install to local Maven repo
        run: mvn -B -ntp -Prelease -Dgpg.skip=true -f bindings/java/pom.xml install

      - name: Build scip-kotlin-bindings (resolves scip-java-bindings from local repo)
        run: mvn -B -ntp -Prelease -Dgpg.skip=true -f bindings/kotlin/pom.xml verify