Improve GHA and usual repository boilerplate

.gitattributes

@@ -0,0 +1 @@
+* text eol=lf

.github/dependabot.yml

@@ -0,0 +1,6 @@
+version: 2
+updates:
+  - package-ecosystem: "gradle"
+    directory: "/"
+    schedule:
+      interval: "weekly"

.github/pull_request_template.md

@@ -0,0 +1,26 @@
+[contributing]: https://github.com/Together-Java/TJ-Bot/wiki/Contributing
+[code_guidelines]: https://github.com/Together-Java/TJ-Bot/wiki/Code-Guidelines
+[new_issue]: https://github.com/Together-Java/TJ-Bot/issues/new/choose
+
+## Pull-request
+
+- [ ] I have read the [contributing guidelines][contributing].
+- [ ] I have read the [code guidelines][code_guidelines].
+- [ ] I have created a relating [issue][new_issue].
+
+### Changes
+
+- [ ] Existing code
+- [ ] New feature
+
+<!--
+While an issue isn't required, this is preferred for most changes.
+It helps make it maintainable for us, and will save you from possibly recoding everything :p
+If there's no relating issue, keep it NaN
+-->
+
+Closes Issue: NaN
+
+## Description
+
+Replace this sentence with general description of what your Pull Request does.

.github/workflows/docker-publish.yaml

@@ -2,33 +2,28 @@ name: Docker Publish
 
 on:
   push:
-    branches:
-      - 'master'
-      - 'feature/cicd-workflows'
-
-env:
-  JAVA_VERSION: 19
+    branches: [ master ]
+  workflow_dispatch:
 
 jobs:
   docker:
     runs-on: ubuntu-latest
     steps:
-      - name: Set up JDK
-        uses: actions/setup-java@v1
-        with:
-          java-version: ${{ env.JAVA_VERSION }}
-      - name: Extract branch name
-        shell: bash
-        run: echo "##[set-output name=branch;]$(echo ${GITHUB_REF#refs/heads/})"
-        id: extract_branch
-      - uses: actions/checkout@v2
+      - name: Check out code
+        uses: actions/checkout@v4
+
+      - name: Install Java
+        uses: actions/setup-java@v3
         with:
-          fetch-depth: 0
-      - name: Build and Publish Docker Image
+          java-version: '21'
+          distribution: 'corretto'
+
+      - name: Build Docker image and publish
         env:
           ORG_REGISTRY_USER: ${{ secrets.ORG_REGISTRY_USER }}
           ORG_REGISTRY_PASSWORD: ${{ secrets.ORG_REGISTRY_PASSWORD }}
-          BRANCH_NAME: ${{ steps.extract_branch.outputs.branch }}
+          BRANCH_NAME: ${{ github.ref_name }}
         run: ./gradlew jib
-      - name: Re-Deploy
+
+      - name: Trigger deployment
         run: "curl -H 'Authorization: Bearer ${{ secrets.ORG_WATCHTOWER_TOKEN }}' https://togetherjava.org:5003/v1/update"

.github/workflows/docker-verify.yaml

@@ -1,21 +1,21 @@
 name: Docker Verify
-
-on: [pull_request]
-
-env:
-  JAVA_VERSION: 19
+on:
+  pull_request:
+  workflow_dispatch:
 
 jobs:
   docker:
     name: Docker Verify
     runs-on: ubuntu-latest
     steps:
-      - name: Set up JDK
-        uses: actions/setup-java@v1
-        with:
-          java-version: ${{ env.JAVA_VERSION }}
-      - uses: actions/checkout@v2
+      - name: Check out code
+        uses: actions/checkout@v4
+
+      - name: Install Java
+        uses: actions/setup-java@v3
         with:
-          fetch-depth: 0
-      - name: Docker Verify
+          java-version: 21
+          distribution: 'corretto'
+
+      - name: Build Docker image
         run: ./gradlew jibDockerBuild

.github/workflows/releases.yaml

@@ -9,28 +9,27 @@ defaults:
   run:
     shell: bash
 
-env:
-  JAVA_VERSION: 19
-
 jobs:
 
   release:
     name: Build and release
     runs-on: ubuntu-latest
     steps:
-      - name: Set up JDK
-        uses: actions/setup-java@v1
-        with:
-          java-version: ${{ env.JAVA_VERSION }}
+      - name: Check out code
+        uses: actions/checkout@v4
 
-      - uses: actions/checkout@v2
+      - name: Install Java
+        uses: actions/setup-java@v3
+        with:
+          java-version: 21
+          distribution: 'corretto'
 
-      - name: Build shadow jar
+      - name: Generate FAT Jar
         run: ./gradlew shadowJar
 
       - name: Create release
-        uses: softprops/action-gh-release@v1
+        uses: softprops/action-gh-release@v2
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
         with:
-          files: app/build/libs/TJ-Plays.jar
+          files: app/build/libs/TJ-JShell-Backend.jar

JShellAPI/build.gradle

@@ -11,12 +11,6 @@ plugins {
 group 'org.togetherjava'
 version '1.0-SNAPSHOT'
 
-java {
-    toolchain {
-        languageVersion = JavaLanguageVersion.of(19)
-    }
-}
-
 repositories {
     mavenCentral()
 }
@@ -34,7 +28,7 @@ dependencies {
 var outputImage = 'togetherjava.org:5001/togetherjava/jshellbackend:master' ?: 'latest'
 
 jib {
-    from.image = 'eclipse-temurin:19'
+    from.image = 'eclipse-temurin:21'
     to {
         image = outputImage
         auth {

JShellWrapper/build.gradle

@@ -8,7 +8,6 @@ group 'org.togetherjava'
 version '1.0-SNAPSHOT'
 
 mainClassName = 'Main' // Debugging only
-sourceCompatibility = 19
 
 run { // Debugging only
     standardInput = System.in

gradle/wrapper/gradle-wrapper.properties

@@ -1,6 +1,6 @@
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-8.3-bin.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-8.7-bin.zip
 networkTimeout=10000
 validateDistributionUrl=true
 zipStoreBase=GRADLE_USER_HOME

gradlew

@@ -145,15 +145,15 @@ if ! "$cygwin" && ! "$darwin" && ! "$nonstop" ; then
     case $MAX_FD in #(
       max*)
         # In POSIX sh, ulimit -H is undefined. That's why the result is checked to see if it worked.
-        # shellcheck disable=SC3045
+        # shellcheck disable=SC2039,SC3045
         MAX_FD=$( ulimit -H -n ) ||
             warn "Could not query maximum file descriptor limit"
     esac
     case $MAX_FD in  #(
       '' | soft) :;; #(
       *)
         # In POSIX sh, ulimit -n is undefined. That's why the result is checked to see if it worked.
-        # shellcheck disable=SC3045
+        # shellcheck disable=SC2039,SC3045
         ulimit -n "$MAX_FD" ||
             warn "Could not set maximum file descriptor limit to $MAX_FD"
     esac
@@ -202,11 +202,11 @@ fi
 # Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
 DEFAULT_JVM_OPTS='"-Xmx64m" "-Xms64m"'
 
-# Collect all arguments for the java command;
-#   * $DEFAULT_JVM_OPTS, $JAVA_OPTS, and $GRADLE_OPTS can contain fragments of
-#     shell script including quotes and variable substitutions, so put them in
-#     double quotes to make sure that they get re-expanded; and
-#   * put everything else in single quotes, so that it's not re-expanded.
+# Collect all arguments for the java command:
+#   * DEFAULT_JVM_OPTS, JAVA_OPTS, JAVA_OPTS, and optsEnvironmentVar are not allowed to contain shell fragments,
+#     and any embedded shellness will be escaped.
+#   * For example: A user cannot expect ${Hostname} to be expanded, as it is an environment variable and will be
+#     treated as '${Hostname}' itself on the command line.
 
 set -- \
         "-Dorg.gradle.appname=$APP_BASE_NAME" \