chore: Format java code (#103)

* add formatting logic

* check formatting in ci

* apply formatting

* separate step for formatting

* remove grEclipse: has troubles with arm64-linux

.github/workflows/release-java-bindings.yml

@@ -27,6 +27,22 @@ concurrency:
   cancel-in-progress: true
 
 jobs:
+  format:
+    name: Check Formatting
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          ref: ${{ inputs.ref || github.ref }}
+      - name: Set up JDK
+        uses: actions/setup-java@v3
+        with:
+          distribution: 'temurin'
+          java-version: '11'
+      - name: Check formatting
+        run: ./gradlew spotlessCheck
+        working-directory: bindings/java/java_code
+
   build:
     name: Build - ${{ matrix.target }}
     runs-on: ${{ matrix.os }}

bindings/java/java_code/build.gradle

@@ -10,10 +10,35 @@ plugins {
 group = 'io.github.crate-crypto'
 version = '0.0.3'
 
+spotless {
+    java {
+        // Apply Google's Java formatting style
+        googleJavaFormat()
+
+        // Remove unused imports
+        importOrder()
+        removeUnusedImports()
+
+        // Enforce Unix line endings
+        endWithNewline()
+        indentWithSpaces(4)
+        trimTrailingWhitespace()
+    }
+
+    // Use a simpler formatter for Gradle files
+    groovy {
+        target '*.gradle'
+        // Basic formatting rules instead of Eclipse formatter
+        // which seems to have issues on arm64-linux
+        indentWithSpaces(4)
+        trimTrailingWhitespace()
+        endWithNewline()
+    }
+}
 
 java {
-  withJavadocJar()
-  withSourcesJar()
+    withJavadocJar()
+    withSourcesJar()
 }
 
 repositories {
@@ -30,17 +55,14 @@ if (hasProperty('buildScan')) {
 dependencies {
     testImplementation platform('org.junit:junit-bom:5.10.0')
     testImplementation 'org.junit.jupiter:junit-jupiter'
-
     implementation 'net.java.dev.jna:jna:5.12.1'
     testImplementation 'io.tmio:tuweni-bytes:2.4.2'
     testImplementation 'org.junit.jupiter:junit-jupiter-params:5.7.2'
     testImplementation 'org.junit.jupiter:junit-jupiter-api:5.7.2'
     testImplementation 'com.fasterxml.jackson.core:jackson-databind:2.12.5'
     testImplementation 'org.assertj:assertj-core:3.22.0'
     testRuntimeOnly 'org.junit.jupiter:junit-jupiter-engine:5.7.2'
-
     def jacksonVersion = "2.14.2"
-
     testFixturesImplementation("org.apache.tuweni:tuweni-units:2.3.1")
     testFixturesImplementation("com.fasterxml.jackson.core:jackson-databind:${jacksonVersion}")
     testFixturesImplementation("com.fasterxml.jackson.dataformat:jackson-dataformat-yaml:${jacksonVersion}")
@@ -51,79 +73,75 @@ test {
     dependsOn cleanTest
     testLogging.showStandardStreams = true
 }
-
-publishing {
-  publications {
-    maven(MavenPublication) {
-      from components.java
 
-      pom {
-        name = 'Verkle Cryptography Library'
-        description = 'A library for working with Cryptography used in verkle trie'
-        url = 'https://github.com/crate-crypto/rust-verkle'
-        licenses {
-          license {
-            name = 'The Apache License, Version 2.0'
-            url = 'http://www.apache.org/licenses/LICENSE-2.0.txt'
-          }
-        }
-        developers {
-          developer {
-            id = 'kevthedev'
-            name = 'Kevaundray Wedderburn'
-            email = '[email protected]'
-          }
-        }
-        scm {
-          connection = 'scm:git:git://github.com/crate-crypto/rust-verkle.git'
-          developerConnection = 'scm:git:ssh://github.com:crate-crypto/rust-verkle.git'
-          url = 'https://github.com/crate-crypto/rust-verkle'
+publishing {
+    publications {
+        maven(MavenPublication) {
+            from components.java
+            pom {
+                name = 'Verkle Cryptography Library'
+                description = 'A library for working with Cryptography used in verkle trie'
+                url = 'https://github.com/crate-crypto/rust-verkle'
+                licenses {
+                    license {
+                        name = 'The Apache License, Version 2.0'
+                        url = 'http://www.apache.org/licenses/LICENSE-2.0.txt'
+                    }
+                }
+                developers {
+                    developer {
+                        id = 'kevthedev'
+                        name = 'Kevaundray Wedderburn'
+                        email = '[email protected]'
+                    }
+                }
+                scm {
+                    connection = 'scm:git:git://github.com/crate-crypto/rust-verkle.git'
+                    developerConnection = 'scm:git:ssh://github.com:crate-crypto/rust-verkle.git'
+                    url = 'https://github.com/crate-crypto/rust-verkle'
+                }
+            }
         }
-      }
     }
-  }
-
-  repositories {
-    maven {
-      url = layout.buildDirectory.dir('staging-deploy')
+    repositories {
+        maven {
+            url = layout.buildDirectory.dir('staging-deploy')
+        }
     }
-  }
 }
-        
+
 jreleaser {
-  // Jreleaser will look for .git and its at the top level repository
-  gitRootSearch = true
-  release {
-    // Skip releases as this is handled by release-please
-    github {
-      skipRelease = true
+    gitRootSearch = true
+    release {
+        github {
+            skipRelease = true
+        }
+    }
+    signing {
+        active = 'ALWAYS'
+        armored = true
     }
-  }
-  signing {
-    active = 'ALWAYS'
-    armored = true
-  }
-  deploy {
-    maven {
-      mavenCentral {
-        sonatype {
-          active = 'ALWAYS'
-          url = 'https://central.sonatype.com/api/v1/publisher'
-          stagingRepository('build/staging-deploy')
+    deploy {
+        maven {
+            mavenCentral {
+                sonatype {
+                    active = 'ALWAYS'
+                    url = 'https://central.sonatype.com/api/v1/publisher'
+                    stagingRepository('build/staging-deploy')
+                }
+            }
         }
-      }
     }
-  }
 }
 
-// JReleaser does not create this directory, so we manually create it 
+// JReleaser does not create this directory, so we manually create it
 // ourselves.
 tasks.register('createJReleaserOutputDir') {
-  doLast {
-    mkdir 'build/jreleaser'
-  }
+    doLast {
+        mkdir 'build/jreleaser'
+    }
 }
 
 tasks.named('jreleaserFullRelease') {
-  dependsOn 'createJReleaserOutputDir'
-}
+    dependsOn 'createJReleaserOutputDir'
+}

bindings/java/java_code/settings.gradle

@@ -1,2 +1 @@
 rootProject.name = 'java-verkle-cryptography'
-