Initial commit with example mod

.github/scripts/test-no-error-reports.sh

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+if [[ -d "run/crash-reports" ]]; then
+  echo "Crash reports detected:"
+  cat $directory/*
+  exit 1
+fi
+
+if grep --quiet "Fatal errors were detected" server.log; then
+  echo "Fatal errors detected:"
+  cat server.log
+  exit 1
+fi
+
+if grep --quiet "The state engine was in incorrect state ERRORED and forced into state SERVER_STOPPED" server.log; then
+  echo "Server force stopped:"
+  cat server.log
+  exit 1
+fi
+
+if grep --quiet 'Done .+ For help, type "help" or "?"' server.log; then
+  echo "Server didn't finish startup:"
+  cat server.log
+  exit 1
+fi
+
+echo "No crash reports detected"
+exit 0
+

.github/scripts/update-version.sh

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+if [ ! -z $(git diff --name-only HEAD HEAD~1 | grep build.gradle) ]; then
+  new_version="$(date +%s)"
+  sed --in-place "s!^//version:.*!//version: $new_version!g" build.gradle
+  git add build.gradle
+  git commit -m "[ci skip] update build script version to $new_version"
+  git push
+  echo "Updated buildscript version to $new_version"; 
+else
+  echo "Ignored buildscript version update: no changes detected"
+fi

.github/workflows/build-and-test.yml

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+# This workflow will build a Java project with Gradle and cache/restore any dependencies to improve the workflow execution time
+# For more information see: https://help.github.com/actions/language-and-framework-guides/building-and-testing-java-with-gradle
+
+name: Build and test
+
+on:
+  pull_request:
+    branches: [ master, main ]
+  push:
+    branches: [ master, main ]
+
+jobs:
+  build-and-test:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+        with:
+          fetch-depth: 0
+
+      - name: Set up JDK 8
+        uses: actions/setup-java@v2
+        with:
+          java-version: '8'
+          distribution: 'adopt'
+          cache: gradle
+
+      - name: Grant execute permission for gradlew
+        run: chmod +x gradlew
+
+      - name: Setup the workspace
+        run: ./gradlew setupCIWorkspace
+
+      - name: Build the mod
+        run: ./gradlew build
+
+      - name: Run server for 1.5 minutes
+        run: |
+          mkdir run
+          echo "eula=true" > run/eula.txt  
+          timeout 90 ./gradlew runServer | tee --append server.log || true
+
+      - name: Test no errors reported during server run
+        run: |
+          chmod +x .github/scripts/test-no-error-reports.sh
+          .github/scripts/test-no-error-reports.sh

.github/workflows/release-tags.yml

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+# This workflow will build a Java project with Gradle and cache/restore any dependencies to improve the workflow execution time
+# For more information see: https://help.github.com/actions/language-and-framework-guides/building-and-testing-java-with-gradle
+
+name: Release tagged build
+
+on:
+  push:
+    tags:
+      - '*'
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+        with:
+          fetch-depth: 0
+
+      - name: Set release version
+        run: echo "RELEASE_VERSION=${GITHUB_REF#refs/*/}" >> $GITHUB_ENV
+
+      - name: Set up JDK 8
+        uses: actions/setup-java@v2
+        with:
+          java-version: '8'
+          distribution: 'adopt'
+          cache: gradle
+
+      - name: Grant execute permission for gradlew
+        run: chmod +x gradlew
+
+      - name: Setup the workspace
+        run: ./gradlew setupCIWorkspace
+
+      - name: Build the mod
+        run: ./gradlew build
+
+      - name: Release under current tag
+        uses: "marvinpinto/action-automatic-releases@latest"
+        with:
+          repo_token: "${{ secrets.GITHUB_TOKEN }}"
+          automatic_release_tag: "${{ env.RELEASE_VERSION }}"
+          prerelease: false
+          title: "${{ env.RELEASE_VERSION }}"
+          files: build/libs/*.jar

.gitignore

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+.gradle
+.settings
+/.idea/
+/run/
+/build/
+/eclipse/
+.classpath
+.project
+/bin/
+/config/
+/crash-reports/
+/logs/
+options.txt
+/saves/
+usernamecache.json
+banned-ips.json
+banned-players.json
+eula.txt
+ops.json
+server.properties
+servers.dat
+usercache.json
+whitelist.json
+/out/
+*.iml
+*.ipr
+*.iws
+src/main/resources/mixins.*.json
+*.bat
+*.DS_Store
+!gradlew.bat