Issue #6148 - update jetty.tag.version behavior

Signed-off-by: Joakim Erdfelt <joakim.erdfelt@gmail.com>

jetty-start/pom.xml

@@ -13,7 +13,30 @@
     <spotbugs.onlyAnalyze>org.eclipse.jetty.start.*</spotbugs.onlyAnalyze>
   </properties>
   <build>
+    <resources>
+      <resource>
+        <directory>src/main/resources</directory>
+        <filtering>true</filtering>
+      </resource>
+    </resources>
     <plugins>
+      <plugin>
+        <groupId>org.codehaus.mojo</groupId>
+        <artifactId>buildnumber-maven-plugin</artifactId>
+        <executions>
+          <execution>
+            <id>create-buildnumber</id>
+            <goals>
+              <goal>create</goal>
+            </goals>
+            <configuration>
+              <doCheck>false</doCheck>
+              <doUpdate>false</doUpdate>
+              <revisionOnScmFailure>${nonCanonicalRevision}</revisionOnScmFailure>
+            </configuration>
+          </execution>
+        </executions>
+      </plugin>
       <plugin>
         <artifactId>maven-jar-plugin</artifactId>
         <configuration>

jetty-start/src/main/java/org/eclipse/jetty/start/Props.java

@@ -19,7 +19,9 @@
 package org.eclipse.jetty.start;
 
 import java.io.IOException;
+import java.io.InputStream;
 import java.io.OutputStream;
+import java.net.URL;
 import java.util.ArrayList;
 import java.util.Iterator;
 import java.util.List;
@@ -365,4 +367,25 @@ public final class Props implements Iterable<Prop>
     {
         return props.toString();
     }
+
+    public static Props load(URL url)
+    {
+        Props props = new Props();
+        if (url != null)
+        {
+            try (InputStream in = url.openStream())
+            {
+                Properties properties = new Properties();
+                properties.load(in);
+                String urlStr = url.toExternalForm();
+                properties.stringPropertyNames().forEach((name) ->
+                    props.setProperty(name, properties.getProperty(name), urlStr));
+            }
+            catch (IOException x)
+            {
+                StartLog.debug(x);
+            }
+        }
+        return props;
+    }
 }

jetty-start/src/main/java/org/eclipse/jetty/start/StartArgs.java

@@ -21,9 +21,7 @@ package org.eclipse.jetty.start;
 import java.io.File;
 import java.io.FileInputStream;
 import java.io.IOException;
-import java.io.InputStream;
 import java.io.OutputStream;
-import java.net.URL;
 import java.nio.file.Files;
 import java.nio.file.Path;
 import java.nio.file.Paths;
@@ -69,8 +67,8 @@ public class StartArgs
     static
     {
         // Use command line versions
-        String ver = System.getProperty("jetty.version", null);
+        String ver = System.getProperty("jetty.version");
-        String tag = System.getProperty("jetty.tag.version", "master");
+        String tag = System.getProperty("jetty.tag.version");
 
         // Use META-INF/MANIFEST.MF versions
         if (ver == null)
@@ -82,41 +80,21 @@ public class StartArgs
                 .orElse(null);
         }
 
-        // Use jetty-version.properties values
+        ClassLoader classLoader = Thread.currentThread().getContextClassLoader();
-        if (ver == null)
+        // use old jetty-version.properties (as seen within various linux distro repackaging of Jetty)
+        Props jettyVerProps = Props.load(classLoader.getResource("jetty-version.properties"));
+        // use build-time properties (included in start.jar) to pull version and buildNumber
+        Props buildProps = Props.load(classLoader.getResource("/org/eclipse/jetty/version/build.properties"));
+
+        if (Utils.isBlank(ver))
         {
-            URL url = Thread.currentThread().getContextClassLoader().getResource("jetty-version.properties");
+            ver = jettyVerProps.getString("version", buildProps.getString("version", "0.0"));
-            if (url != null)
-            {
-                try (InputStream in = url.openStream())
-                {
-                    Properties props = new Properties();
-                    props.load(in);
-                    ver = props.getProperty("jetty.version");
-                }
-                catch (IOException x)
-                {
-                    StartLog.debug(x);
-                }
-            }
         }
 
-        // Default values
+        if (Utils.isBlank(tag))
-        if (ver == null)
         {
-            ver = "0.0";
+            tag = jettyVerProps.getString("buildNumber", buildProps.getString("buildNumber", "jetty-" + ver));
-            if (tag == null)
-                tag = "master";
         }
-        else
-        {
-            if (tag == null)
-                tag = "jetty-" + ver;
-        }
-
-        // Set Tag Defaults
-        if (tag.contains("-SNAPSHOT"))
-            tag = "master";
 
         VERSION = ver;
         System.setProperty("jetty.version", VERSION);

jetty-start/src/main/resources/org/eclipse/jetty/start/build.properties

@@ -0,0 +1,4 @@
+buildNumber=${buildNumber}
+timestamp=${timestamp}
+version=${project.version}
+scmUrl=${project.scm.connection}