Is there a way to read a text from a text.file and set it to maven property in pom.xml maven?

Question

Is there a way to read a text from a text.file and set it to maven property in pom.xml maven? I am trying with the below code. But, I will need to read the text from tmp.txt and assign it to the maven property "token".

<plugin>
    <groupId>org.codehaus.mojo</groupId>
    <artifactId>exec-maven-plugin</artifactId>
    <version>1.5.0</version>
    <executions>
    <execution>
    <id>generate-random-string</id>
    <phase>install</phase>
    <goals>
    <goal>exec</goal>
    </goals>
    <configuration>
    <executable>bash</executable>
    <arguments>
    <argument>temp.sh</argument>
    </arguments>
    <workingDirectory>temp.txt</workingDirectory>
    </configuration>
    </execution>
    </executions>
</plugin>

temp.sh

PWD=${openssl rand hex 12}
echo $PWD >> temp.txt

@AndyMan - I was struggling to read a text from text file and set it to maven property. — VijayKumar Subrambani, Nov 27 '19 at 05:03
You could try the plugin that @AndyMan suggest. Change the bash script to `PWD="$(ls -l)" echo "token = $PWD"> temp.properties`. Then read that file and use token property. See https://stackoverflow.com/questions/12619446/can-i-use-property-file-in-maven-pom-xml-for-flyway-configuration — admlz635, Nov 27 '19 at 05:32
properties-maven-plugin reading the property from profile in this plugin will be limited or the property can be accessed throughout the file? — VijayKumar Subrambani, Nov 27 '19 at 06:37

score -1 · Answer 1 · answered Nov 27 '19 at 12:54

You can use the properties-maven-plugin: https://www.mojohaus.org/properties-maven-plugin/

In your pom.xml. Put the file path of the generated file on the configuration section.

  <build>
    <plugins>
      <plugin>
        <groupId>org.codehaus.mojo</groupId>
        <artifactId>properties-maven-plugin</artifactId>
        <version>1.0.0</version>
        <executions>
          <execution>
            <phase>initialize</phase>
            <goals>
              <goal>read-project-properties</goal>
            </goals>
            <configuration>
              <files>
                <!-- your generated file -->
                <file>temp.txt</file>
              </files>
            </configuration>
          </execution>
        </executions>
      </plugin>
    </plugins>
  </build>

How would this work with text file which is just a list of values, not keys/values? — Martynas Jusevičius, Aug 24 '20 at 19:55
The file is a properties file. It's only key-values. For a list it should be listName=a,b,c,e... You need at least one property name to reference it — jordiburgos, Aug 25 '20 at 17:25

Is there a way to read a text from a text.file and set it to maven property in pom.xml maven?

temp.sh

1 Answers1