Enhancement: Add support for google-java-format

.automation/test/google_java_format/README.md

@@ -0,0 +1,19 @@
+# Google Java Format Test Cases
+
+This folder holds the test cases for **Google Java format**.
+
+## Additional Docs
+
+No Additional information is needed for this test case.
+
+## Good Test Cases
+
+The test cases denoted: `LANGUAGE_good_FILE.EXTENSION` are all valid, and should pass successfully when linted.
+
+- **Note:** They are linted utilizing the default linter rules.
+
+## Bad Test Cases
+
+The test cases denoted: `LANGUAGE_bad_FILE.EXTENSION` are **NOT** valid, and should trigger errors when linted.
+
+- **Note:** They are linted utilizing the default linter rules.

.automation/test/google_java_format/google_java_format_bad_1.java

@@ -0,0 +1,8 @@
+class java_bad_1 // first letter of classname is not capitalized
+{
+
+    public static void main(String args[])
+    {
+        System.out.println("Hello, World");
+    }
+}

.automation/test/google_java_format/google_java_format_bad_2.java

@@ -0,0 +1,12 @@
+public class Application {
+
+  /**
+   * main.
+   *
+   * @param args
+   */
+  public static void main(final String[] args) {
+    SpringApplication.run(Application.class, args);
+  }
+
+}

.automation/test/google_java_format/google_java_format_good_1.java

@@ -0,0 +1,9 @@
+/**
+ * Represents a good Java file.
+*/
+public static class JavaGood {
+    // Prints "Hello, World" to the terminal window.
+    private void helloWorld() {
+        System.out.println("Hello, World");
+    }
+}

.automation/test/google_java_format/google_java_format_good_2.java

@@ -0,0 +1,13 @@
+@SuppressWarnings("checkstyle:hideutilityclassconstructor")
+public class Application {
+
+  /**
+   * main.
+   *
+   * @param args
+   */
+  public static void main(final String[] args) {
+    SpringApplication.run(Application.class, args);
+  }
+
+}

Dockerfile

@@ -287,6 +287,14 @@ RUN echo "http://dl-cdn.alpinelinux.org/alpine/edge/community/" >> /etc/apk/repo
     | cut -d '"' -f 4) \
     && curl --retry 5 --retry-delay 5 -sSL "$CHECKSTYLE_LATEST" \
     --output /usr/bin/checkstyle \
+##############################
+# Install google-java-format #
+##############################
+    && GOOGLE_JAVA_FORMAT_VERSION=$(curl -s https://github.com/google/google-java-format/releases/latest \
+    | cut -d '"' -f 2 | cut -d '/' -f 8 | sed -e 's/v//g') \
+    && curl --retry 5 --retry-delay 5 -sSL \
+    "https://github.com/google/google-java-format/releases/download/v$GOOGLE_JAVA_FORMAT_VERSION/google-java-format-$GOOGLE_JAVA_FORMAT_VERSION-all-deps.jar" \
+    --output /usr/bin/google-java-format \
 #################################
 # Install luacheck and luarocks #
 #################################

Dockerfile-slim

@@ -225,6 +225,14 @@ RUN echo "http://dl-cdn.alpinelinux.org/alpine/edge/community/" >> /etc/apk/repo
     | cut -d '"' -f 4) \
     && curl --retry 5 --retry-delay 5 -sSL "$CHECKSTYLE_LATEST" \
     --output /usr/bin/checkstyle \
+##############################
+# Install google-java-format #
+##############################
+    && GOOGLE_JAVA_FORMAT_VERSION=$(curl -s https://github.com/google/google-java-format/releases/latest \
+    | cut -d '"' -f 2 | cut -d '/' -f 8 | sed -e 's/v//g') \
+    && curl --retry 5 --retry-delay 5 -sSL \
+    "https://github.com/google/google-java-format/releases/download/v$GOOGLE_JAVA_FORMAT_VERSION/google-java-format-$GOOGLE_JAVA_FORMAT_VERSION-all-deps.jar" \
+    --output /usr/bin/google-java-format \
 #################################
 # Install luacheck and luarocks #
 #################################

README.md

@@ -71,7 +71,7 @@ Developers on **GitHub** can call the **GitHub Action** to lint their code base
 | **Golang**                       | [golangci-lint](https://github.com/golangci/golangci-lint)                                                                                                                    |
 | **Groovy**                       | [npm-groovy-lint](https://github.com/nvuillam/npm-groovy-lint)                                                                                                                |
 | **HTML**                         | [HTMLHint](https://github.com/htmlhint/HTMLHint)                                                                                                                              |
-| **Java**                         | [checkstyle](https://checkstyle.org)                                                                                                                                          |
+| **Java**                         | [checkstyle](https://checkstyle.org) / [google-java-format](https://github.com/google/google-java-format)                                                                     |
 | **JavaScript**                   | [eslint](https://eslint.org/) / [standard js](https://standardjs.com/)                                                                                                        |
 | **JSON**                         | [eslint-plugin-json](https://www.npmjs.com/package/eslint-plugin-json)                                                                                                        |
 | **JSONC**                        | [eslint-plugin-jsonc](https://www.npmjs.com/package/eslint-plugin-jsonc)                                                                                                      |
@@ -334,9 +334,10 @@ But if you wish to select or exclude specific linters, we give you full control
 | **VALIDATE_GITHUB_ACTIONS**        | `true`                          | Flag to enable or disable the linting process of the GitHub Actions.                                                                                                                                                 |
 | **VALIDATE_GHERKIN**               | `true`                          | Flag to enable or disable the linting process of the Gherkin language.                                                                                                                                               |
 | **VALIDATE_GO**                    | `true`                          | Flag to enable or disable the linting process of the Golang language.                                                                                                                                                |
+| **VALIDATE_GOOGLE_JAVA_FORMAT**    | `true`                          | Flag to enable or disable the linting process of the Java language. (Utilizing: google-java-format)                                                                                                                  |
 | **VALIDATE_GROOVY**                | `true`                          | Flag to enable or disable the linting process of the language.                                                                                                                                                       |
 | **VALIDATE_HTML**                  | `true`                          | Flag to enable or disable the linting process of the HTML language.                                                                                                                                                  |
-| **VALIDATE_JAVA**                  | `true`                          | Flag to enable or disable the linting process of the language.                                                                                                                                                       |
+| **VALIDATE_JAVA**                  | `true`                          | Flag to enable or disable the linting process of the Java language. (Utilizing: checkstyle)                                                                                                                          |
 | **VALIDATE_JAVASCRIPT_ES**         | `true`                          | Flag to enable or disable the linting process of the Javascript language. (Utilizing: eslint)                                                                                                                        |
 | **VALIDATE_JAVASCRIPT_STANDARD**   | `true`                          | Flag to enable or disable the linting process of the Javascript language. (Utilizing: standard)                                                                                                                      |
 | **VALIDATE_JSCPD**                 | `true`                          | Flag to enable or disable the JSCPD.                                                                                                                                                                                 |

lib/functions/buildFileList.sh

@@ -455,6 +455,7 @@ function BuildFileList() {
       # Append the file to the array #
       ################################
       FILE_ARRAY_JAVA+=("${FILE}")
+      FILE_ARRAY_GOOGLE_JAVA_FORMAT+=("${FILE}")
 
     ############################
     # Get the JavaScript files #

lib/functions/linterVersions.sh

@@ -83,6 +83,8 @@ BuildLinterVersions() {
         GET_VERSION_CMD="$("${LINTER}" version 2>&1)"
       elif [[ ${LINTER} == "checkstyle" ]]; then
         GET_VERSION_CMD="$(java -jar "/usr/bin/${LINTER}" --version 2>&1)"
+      elif [[ ${LINTER} == "google-java-format" ]]; then
+        GET_VERSION_CMD="$(java -jar "/usr/bin/${LINTER}" --version 2>&1)"
       elif [[ ${LINTER} == "clippy" ]]; then
         GET_VERSION_CMD="$(cargo-clippy --version 2>&1)"
       elif [[ ${LINTER} == "protolint" ]]; then

lib/linter.sh

@@ -200,7 +200,7 @@ fi
 LANGUAGE_ARRAY=('ANSIBLE' 'ARM' 'BASH' 'BASH_EXEC' 'CLANG_FORMAT'
   'CLOUDFORMATION' 'CLOJURE' 'COFFEESCRIPT' 'CPP' 'CSHARP' 'CSS' 'DART'
   'DOCKERFILE' 'DOCKERFILE_HADOLINT' 'EDITORCONFIG' 'ENV' 'GITHUB_ACTIONS'
-  'GHERKIN' 'GO' 'GROOVY' 'HTML' 'JAVA' 'JAVASCRIPT_ES'
+  'GHERKIN' 'GO' 'GOOGLE_JAVA_FORMAT' 'GROOVY' 'HTML' 'JAVA' 'JAVASCRIPT_ES'
   "${JAVASCRIPT_STYLE_NAME}" 'JSCPD' 'JSON' 'JSONC' 'JSX' 'KUBERNETES_KUBEVAL'
   'KOTLIN' 'LATEX' 'LUA' 'MARKDOWN' 'OPENAPI' 'PERL' 'PHP_BUILTIN' 'PHP_PHPCS'
   'PHP_PHPSTAN' 'PHP_PSALM' 'POWERSHELL' 'PROTOBUF' 'PYTHON_BLACK'
@@ -233,6 +233,7 @@ LINTER_NAMES_ARRAY['ENV']="dotenv-linter"
 LINTER_NAMES_ARRAY['GITHUB_ACTIONS']="actionlint"
 LINTER_NAMES_ARRAY['GHERKIN']="gherkin-lint"
 LINTER_NAMES_ARRAY['GO']="golangci-lint"
+LINTER_NAMES_ARRAY['GOOGLE_JAVA_FORMAT']="google-java-format"
 LINTER_NAMES_ARRAY['GROOVY']="npm-groovy-lint"
 LINTER_NAMES_ARRAY['HTML']="htmlhint"
 LINTER_NAMES_ARRAY['JAVA']="checkstyle"
@@ -833,6 +834,7 @@ LINTER_COMMANDS_ARRAY['ENV']="dotenv-linter"
 LINTER_COMMANDS_ARRAY['GITHUB_ACTIONS']="actionlint -config-file ${GITHUB_ACTIONS_LINTER_RULES}"
 LINTER_COMMANDS_ARRAY['GHERKIN']="gherkin-lint -c ${GHERKIN_LINTER_RULES}"
 LINTER_COMMANDS_ARRAY['GO']="golangci-lint run -c ${GO_LINTER_RULES}"
+LINTER_COMMANDS_ARRAY['GOOGLE_JAVA_FORMAT']="java -jar /usr/bin/google-java-format"
 LINTER_COMMANDS_ARRAY['GROOVY']="npm-groovy-lint -c ${GROOVY_LINTER_RULES} --failon warning"
 LINTER_COMMANDS_ARRAY['HTML']="htmlhint --config ${HTML_LINTER_RULES}"
 LINTER_COMMANDS_ARRAY['JAVA']="java -jar /usr/bin/checkstyle -c ${JAVA_LINTER_RULES}"

test/inspec/super-linter/controls/super_linter.rb

@@ -98,6 +98,7 @@
     { linter_name: "clang-format"},
     { linter_name: "cfn-lint"},
     { linter_name: "checkstyle", version_command: "java -jar /usr/bin/checkstyle --version"},
+    { linter_name: "google-java-format", version_command: "java -jar /usr/bin/google-java-format --version"},
     { linter_name: "chktex"},
     { linter_name: "clippy", linter_command: "clippy", version_command: "cargo-clippy --version"},
     { linter_name: "clj-kondo"},