Externalise version information.

.gitignore

@@ -27,4 +27,6 @@ build
 out
 *.puml
 *.wsd
-*.sh
+*.sh
+
+src/main/resources/build.properties

build.gradle

@@ -6,7 +6,7 @@ defaultTasks 'clean', 'build', 'getDeps', 'buildZip'
 
 description = 'Structurizr CLI'
 group = 'com.structurizr'
-version = '1.35.0'
+version = ''
 
 sourceCompatibility = 17
 targetCompatibility = 17
@@ -42,6 +42,11 @@ test {
 	useJUnitPlatform()
 }
 
+sourceSets.main.resources {
+	srcDirs = ['src/main/resources']
+	include 'build.properties'
+}
+
 jar {
     manifest {
         attributes(

src/main/java/com/structurizr/cli/VersionCommand.java

@@ -7,15 +7,45 @@
 import org.apache.commons.logging.Log;
 import org.apache.commons.logging.LogFactory;
 
+import java.io.InputStream;
+import java.text.DateFormat;
+import java.text.SimpleDateFormat;
+import java.util.Date;
+import java.util.Properties;
+
 class VersionCommand extends AbstractCommand {
 
     private static final Log log = LogFactory.getLog(VersionCommand.class);
 
     VersionCommand() {
     }
 
+    private static final String BUILD_VERSION_KEY = "build.number";
+    private static final String BUILD_TIMESTAMP_KEY = "build.timestamp";
+    private static final String GIT_COMMIT_KEY = "git.commit";
+
+    private static final String ISO_DATE_TIME_FORMAT = "yyyy-MM-dd'T'HH:mm:ss'Z'";
+
     public void run(String... args) throws Exception {
-        String version = getClass().getPackage().getImplementationVersion();
+        String version = "";
+        String buildTimestamp = "";
+        String gitCommit = "";
+
+        try {
+            Properties buildProperties = new Properties();
+            InputStream in = VersionCommand.class.getClassLoader().getResourceAsStream("build.properties");
+            DateFormat format = new SimpleDateFormat(ISO_DATE_TIME_FORMAT);
+            if (in != null) {
+                buildProperties.load(in);
+                version = buildProperties.getProperty(BUILD_VERSION_KEY);
+                buildTimestamp = buildProperties.getProperty(BUILD_TIMESTAMP_KEY);
+                gitCommit = buildProperties.getProperty(GIT_COMMIT_KEY);
+                in.close();
+            }
+        } catch (Exception e) {
+            e.printStackTrace();
+        }
+
         log.info("structurizr-cli: " + version);
 
         try {

version.txt

@@ -0,0 +1 @@
+2023.1.1