Add version parameter

pom.xml

@@ -20,7 +20,9 @@
                 <directory>./</directory>
                 <includes>
                     <include>language-codes</include>
+                    <include>version.properties</include>
                 </includes>
+                <filtering>true</filtering>
             </resource>
         </resources>
         <testResources>

src/main/java/at/pcgamingfreaks/mkvaudiosubtitlechanger/config/Config.java

@@ -2,6 +2,7 @@ package at.pcgamingfreaks.mkvaudiosubtitlechanger.config;
 
 import at.pcgamingfreaks.mkvaudiosubtitlechanger.model.AttributeConfig;
 import at.pcgamingfreaks.mkvaudiosubtitlechanger.model.MkvToolNix;
+import at.pcgamingfreaks.mkvaudiosubtitlechanger.util.VersionUtil;
 import at.pcgamingfreaks.yaml.YAML;
 import at.pcgamingfreaks.yaml.YamlInvalidContentException;
 import lombok.AccessLevel;
@@ -75,6 +76,7 @@ public class Config {
         }
 
         exitIfHelp(cmd, options);
+        exitIfVersion(cmd);
 
         configPath = loadConfigPath(cmd, errors);
         libraryPath = loadLibraryPath(cmd, errors);
@@ -101,6 +103,7 @@ public class Config {
     private static Options initOptions() {
         Options options = new Options();
         options.addOption(optionOf(HELP, "h", false));
+        options.addOption(optionOf(VERSION, "v", false));
         options.addOption(optionOf(LIBRARY, "l", true));
         options.addOption(optionOf(MKV_TOOL_NIX, "m", true));
         options.addOption(optionOf(CONFIG_PATH, "c", true));
@@ -121,6 +124,13 @@ public class Config {
         }
     }
 
+    private void exitIfVersion(CommandLine cmd) {
+        if (cmd.hasOption(VERSION.prop())) {
+            System.out.printf("MKV Audio Subtitle Changer Version %s%n", VersionUtil.getVersion());
+            System.exit(0);
+        }
+    }
+
     private File loadConfigPath(CommandLine cmd, ConfigErrors errors) {
         File configPath = new File(cmd.getOptionValue(CONFIG_PATH.prop(), "config.yaml"));
         if (configPath.isFile()) return configPath;

src/main/java/at/pcgamingfreaks/mkvaudiosubtitlechanger/model/ConfigProperty.java

@@ -9,7 +9,8 @@ public enum ConfigProperty {
     MKV_TOOL_NIX("mkvtoolnix", "Path to mkv tool nix installation"),
     FORCED_KEYWORDS("forcedKeywords", "Additional keywords to identify forced tracks, combines with config file"),
     EXCLUDE_DIRECTORY("exclude-directories", "Directories to be excluded, combines with config file"),
-    HELP("help", "\"for help this is\" - Yoda");
+    HELP("help", "\"for help this is\" - Yoda"),
+    VERSION("version", "Display version");
 
     private final String property;
     private final String description;

src/main/java/at/pcgamingfreaks/mkvaudiosubtitlechanger/util/LanguageValidatorUtil.java

@@ -3,11 +3,8 @@ package at.pcgamingfreaks.mkvaudiosubtitlechanger.util;
 import at.pcgamingfreaks.mkvaudiosubtitlechanger.config.ConfigErrors;
 
 import java.io.BufferedReader;
-import java.io.File;
 import java.io.IOException;
 import java.io.InputStreamReader;
-import java.nio.file.Files;
-import java.nio.file.Path;
 import java.util.Objects;
 import java.util.Set;
 import java.util.stream.Collectors;
@@ -17,20 +14,16 @@ public class LanguageValidatorUtil {
 
     static {
         try {
-            ISO3_LANGUAGES = load("language-codes");
+            ISO3_LANGUAGES = loadLanguageCodes();
         } catch (IOException ignored) {}
     }
 
-    private static Set<String> load(String path) throws IOException{
+    private static Set<String> loadLanguageCodes() throws IOException {
-        if (new File(path).isFile()) {
-            return Files.lines(Path.of(path)).collect(Collectors.toSet());
-        } else {
         try (BufferedReader bf = new BufferedReader(new InputStreamReader(
-                    Objects.requireNonNull(LanguageValidatorUtil.class.getClassLoader().getResourceAsStream(path))))) {
+                Objects.requireNonNull(LanguageValidatorUtil.class.getClassLoader().getResourceAsStream("language-codes"))))) {
             return bf.lines().collect(Collectors.toSet());
         }
     }
-    }
 
     public static boolean isLanguageValid(String language) {
         return ISO3_LANGUAGES.contains(language);

src/main/java/at/pcgamingfreaks/mkvaudiosubtitlechanger/util/VersionUtil.java

@@ -0,0 +1,18 @@
+package at.pcgamingfreaks.mkvaudiosubtitlechanger.util;
+
+import java.io.IOException;
+import java.io.InputStream;
+import java.util.Properties;
+
+public class VersionUtil {
+    public static String getVersion() {
+        try (InputStream propertiesStream = VersionUtil.class.getClassLoader().getResourceAsStream("version.properties")) {
+            Properties properties = new Properties();
+            properties.load(propertiesStream);
+
+            return properties.getProperty("version");
+        } catch (IOException e) {
+            throw new RuntimeException(e.getMessage());
+        }
+    }
+}

version.properties

@@ -0,0 +1 @@
+version=${project.version}