Skip to content

Latest commit

 

History

History
72 lines (60 loc) · 4.18 KB

instructions.md

File metadata and controls

72 lines (60 loc) · 4.18 KB
Raw

Gradle Training Exercises

01-Setup

  1. Copy the Gradle distribution from the USB stick to your hard disk.
  2. Download and unzip the Workshop Exercises from https://github.com/pniederw/gradle-workshop-gr8conf/zipball/master.
  3. Add an environment variable GRADLE_HOME pointing to the top-level directory of the Gradle distribution.
  4. Add GRADLE_HOME/bin to the PATH environment variable.
  5. Activate the Gradle Daemon by setting the environment variable GRADLE_OPTS to -Dorg.gradle.daemon=true.
  6. Open a terminal and execute gradle -v.
  7. Have a look at http://gradle.org/downloads.html.

02-Quickstart

  1. Go to GRADLE_HOME/samples/java/quickstart.
  2. Check the output of gradle help, gradle -? and gradle tasks.
  3. Build the archives for this Java project and try to find them.
  4. Run the tests of this project with the Gradle UI. Start the UI with gradle --gui.

03-Incremental Build

  1. Go to GRADLE_HOME/samples/java/quickstart.
  2. Run gradle clean build.
  3. Run gradle build. Observe that all tasks are up-to-date.
  4. Add an arbitrary method to the project's main source code. Which tasks will be run again on the next build?
  5. Add an arbitrary comment to the project's main source code. Which tasks will be run again on the next build?

04-Tasks

  1. Add a hello task that prints 'hello world'.
  2. Execute this task.
  3. Add a date task that prints out the current date.
  4. Execute this task.

05-Custom Tasks

  1. Write a custom task class of type Greeting. Add a property greeting for the greeting text. Assign a default value to it. The task action should print the greeting text property. Add two tasks to your build script, both of type Greeting. One should assign a custom value to the greeting property. Execute both tasks.

06-Task Dependencies

  1. Make the date task depend on the hello task.
  2. Execute the date task.
  3. Execute gradle tasks --all.
  4. The --dry-run (or -m) command line option executes the build but disables all actions. Execute date with the dry-run option.
  5. Add some top level println statements to the script.
  6. Add a println statement to the configuration block of the date task.
  7. Execute the hello task and analyze the output.

07-Applying Plugins

  1. Apply the plugin info.gradle in the plugins directory to the build. Execute gradle tasks to see what task has been added. Execute the task.

08-Testing

  1. Run the tests with testReport set to false. What do you see?

  2. Run the tests with different settings for forkEvery. What do you see?

  3. Run the tests with different settings for maxParallelForks. What do you see?

  4. (Optional) Add a listener that, if a test fails, opens the test results XML file.

    Hint:

    1. The test results XML file can be found at build/test-results/TEST-<test-class-name>.xml.
    2. To execute an external command in Groovy, use "command args".execute().
    3. Check the Javadoc of the org.gradle.api.tasks.testing.Test.afterTest method to learn about its arguments.

09-Dependencies

  1. Add the Maven Central repository and a configuration named mydeps. Assign the org.apache.httpcomponents:httpclient:4.0.3 dependency to mydeps.
  2. Add a task showDeps that prints out the files of the mydeps configuration. 
  3. Add task copyDeps that copies the files of the mydeps configuration into the build/deps dir.
  4. Execute gradle dependencies.

10-Multi-Project Builds

  1. Investigate the structure of the multi project build. Execute the build task from the root project and observe what is happening.
  2. Go to the api project. Execute build from there. Execute also buildNeeded and buildDependent. What is different compared to executing the build task?
  3. Execute the build task of the api project from the root project directory.
  4. Execute gradle projects from the root directory.
  5. Execute gradle projects and gradle :projects from the services directory.
  6. Execute gradle tasks and gradle :api:tasks from the root project directory.
  7. Execute gradle :services:webservice:properties from the root project directory.
  8. Execute gradle --profile clean build from the root project. Have a look at the profile report in build/reports/profile.