add lucene snapshot workflow

Workflow to build lucene snapshots and publish them to github packages.

Signed-off-by: Nicholas Walter Knize <[email protected]>

.github/workflows/lucene-snapshots.yml

@@ -0,0 +1,68 @@
+# This workflow will check out, build, and publish snapshots of lucene.
+
+name: Lucene snapshots
+
+on:
+  workflow_dispatch:
+    # Inputs the workflow accepts.
+    inputs:
+      ref:
+        description:
+        required: false
+        default: 'main'
+
+jobs:
+  publish-snapshots:
+    if: github.repository == 'lucenia/snapshots'
+    runs-on: ubuntu-latest
+    # These permissions are needed to interact with GitHub's OIDC Token endpoint.
+    permissions:
+      id-token: write
+      contents: read
+
+    steps:
+      - uses: actions/checkout@v4
+      - name: Set up JDK 17
+        uses: actions/setup-java@v3
+        with:
+          java-version: '17'
+          distribution: 'adopt'
+
+      - name: Checkout Lucene
+        uses: actions/checkout@v4
+        with:
+          repository: 'apache/lucene'
+          path: lucene
+          ref: ${{ github.event.inputs.ref }}
+
+      - name: Set hash
+        working-directory: ./lucene
+        run: |
+          echo "REVISION=$(git rev-parse --short HEAD)" >> $GITHUB_OUTPUT
+        id: version
+
+      - name: Initialize gradle settings
+        working-directory: ./lucene
+        run: ./gradlew localSettings
+
+      - name: Publish Lucene to local maven repo.
+        working-directory: ./lucene
+        run: ./gradlew publishJarsPublicationToMavenLocal -Pversion.suffix=snapshot-${{ steps.version.outputs.REVISION }}
+
+      - name: Checkout build repo
+        uses: actions/checkout@v4
+        with:
+          repository: lucenia/build
+          ref: main
+          path: lucenia-build
+
+      - name: Copy settings.xml
+        run: |
+          cp lucenia-build/maven/settings.xml ~/.m2/
+
+      - name: Publish lucene snapshot to github packages
+        env:
+          USERNAME: ${{github.actor}}
+          ACCESS_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        run: |
+          bash lucenia-build/scripts/gradle/publish-to-github-packages.sh ~/.m2/repository/ lucenia-bot snapshots github