Inject version from version.properties

Author: testower

gbfs-validator-java-cli/pom.xml

@@ -80,6 +80,12 @@
     </dependencies>
 
     <build>
+        <resources>
+            <resource>
+                <directory>src/main/resources</directory>
+                <filtering>true</filtering>
+            </resource>
+        </resources>
         <plugins>
             <!-- Compiler with Picocli annotation processor -->
             <plugin>

gbfs-validator-java-cli/src/main/java/org/entur/gbfs/validator/cli/GbfsValidatorCli.java

@@ -23,7 +23,7 @@
 @Command(
   name = "gbfs-validator",
   mixinStandardHelpOptions = true,
-  version = "2.0.52-SNAPSHOT", // TODO this needs to be injected
+  versionProvider = VersionProvider.class,
   description = "Validate GBFS feeds against JSON schemas",
   headerHeading = "Usage:%n%n",
   synopsisHeading = "%n",

gbfs-validator-java-cli/src/main/java/org/entur/gbfs/validator/cli/VersionProvider.java

@@ -0,0 +1,28 @@
+package org.entur.gbfs.validator.cli;
+
+import java.io.IOException;
+import java.io.InputStream;
+import java.util.Properties;
+import picocli.CommandLine;
+
+public class VersionProvider implements CommandLine.IVersionProvider {
+
+  @Override
+  public String[] getVersion() throws Exception {
+    Properties properties = new Properties();
+    try (
+      InputStream input = getClass()
+        .getClassLoader()
+        .getResourceAsStream("version.properties")
+    ) {
+      if (input == null) {
+        return new String[] { "Unknown version" };
+      }
+      properties.load(input);
+      String version = properties.getProperty("version", "Unknown version");
+      return new String[] { version };
+    } catch (IOException e) {
+      return new String[] { "Unknown version" };
+    }
+  }
+}

gbfs-validator-java-cli/src/main/resources/version.properties

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