Wednesday 9 March 2016

Fetching AppInfo from Manifest

Sometimes, we want to dynamically fetch App info without hardcoding them.
We can get these info from manifest.

Add below plugin in the parent pom.xml
In the child pom.xml, setup below
<artifactId>com.test.app</artifactId>
<name>AppName</name>

<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-jar-plugin</artifactId>
<version>2.5</version>
<configuration>
<archive>
     <manifest>
<addDefaultImplementationEntries>true</addDefaultImplementationEntries>
     </manifest>
<manifestEntries>
<Implementation-Build>${maven.build.timestamp}</Implementation-Build>
<APP-ID>${artifactId}</APP-ID>
<APP-NAME>${name}</APP-NAME>
<APP-VERSION>${version}</APP-VERSION>
        </manifestEntries>
</archive>
</configuration>
</plugin>

def getAppInfo: (String, String) = {

    val p = getClass.getPackage
    val appName = Option(p.getImplementationTitle)
                  .getOrElse("MyApp")
    val version = Option(p.getImplementationVersion)
                  .getOrElse("SNAPSHOT")
    (appName, version)
  }

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