Add utility class containing Vespa version

2 files changed, 45 insertions, 0 deletions

diff --git a/vespa-feed-client/pom.xml b/vespa-feed-client/pom.xml
index 32b44012107..d0b0066f07e 100644
--- a/vespa-feed-client/pom.xml
+++ b/vespa-feed-client/pom.xml
@@ -70,6 +70,27 @@
           </compilerArgs>
         </configuration>
       </plugin>
+      <plugin>
+        <groupId>org.codehaus.mojo</groupId>
+        <artifactId>exec-maven-plugin</artifactId>
+        <executions>
+          <execution>
+            <id>generate-simplified-vtag</id>
+            <phase>generate-sources</phase>
+            <goals>
+              <goal>exec</goal>
+            </goals>
+            <configuration>
+              <executable>src/main/sh/vespa-version-generator.sh</executable>
+              <arguments>
+                <argument>${project.basedir}/../dist/vtag.map</argument>
+                <argument>${project.build.directory}/generated-sources/vespa-version/com/yahoo/vespa/feed/client/Vespa.java</argument>
+              </arguments>
+              <sourceRoot>${project.build.directory}/generated-sources/vespa-version</sourceRoot>
+            </configuration>
+          </execution>
+        </executions>
+      </plugin>
     </plugins>
   </build>
 </project>
diff --git a/vespa-feed-client/src/main/sh/vespa-version-generator.sh b/vespa-feed-client/src/main/sh/vespa-version-generator.sh
new file mode 100755
index 00000000000..d8f5878e2c5
--- /dev/null
+++ b/vespa-feed-client/src/main/sh/vespa-version-generator.sh
@@ -0,0 +1,24 @@
+#!/usr/bin/env bash
+# Copyright Verizon Media. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
+
+# Extracts the current version number (V_TAG_COMPONENT) from vtag.map and outputs this into a Java class.
+# This replaces vespajlib/../VersionTagger.java as this module cannot depend on that, nor the dependencies
+# of the resulting class.
+#
+# Author: bjorncs
+
+source=$1
+destination=$2
+destinationDir=$(dirname $destination)
+
+mkdir -p $destinationDir
+
+versionNumber=$(cat $source | grep V_TAG_COMPONENT | awk '{print $2}' )
+
+cat > $destination <<- END
+package com.yahoo.vespa.feed.client;
+
+class Vespa {
+    static final String VERSION = "$versionNumber";
+}
+END