Gradle: Task for deploying to appengine with testing configuration? - google-app-engine

Question

I have a gradle project with a very simple Google App Engine configuration:
apply plugin: 'com.google.cloud.tools.appengine'
// ...
appengine {
deploy {
stopPreviousVersion = true
promote = true
project = 'my-awesome-project'
}
run {
port = 3000
}
}
This configures the app engine gradle tasks, e.g. appengineDeploy.
What I would like to do is to create another gradle task named appengineDeployTesting which does exactly the same thing as appengineDeploy, except that it uses a different project name (e.g. my-awesome-project-testing).
Ultimately, I want to end up with two tasks:
appengineDeploy to deploy to the production instance
appengineDeployTesting to deploy to the testing instance
How would you do this in gradle? I know how to create a task dependency, but this case requires more than just a dependency.

Answer 1

First option
Well, if you only want to change the project where you are deploying you can do a simple condition check in Gradle, just before the appengine { ... } line, for example:
if (project.hasProperty('testProject')) {
appengine.deploy.project = "my-awesome-project"
}else{
appengine.deploy.project = "main-project"
}
Remember to remove the tag "project" inside the "appengine.deploy" field, so you don't overwrite the project name, for example:
appengine {
deploy {
stopPreviousVersion = true
promote = true
}
}
To deploy the application to your test project, you can just add the flag:
gradle appengineDeploy -PnewProject
And to deploy to the main project, just remove it:
gradle appengineDeploy
What you were asking was to create your own plugin in order to create a specific command to deploy to a specific project, you can follow the official documentation on how you can do it, however I think this solution is way simpler.
Second option
To avoid using flags, you can add the following code in the build.gradle file, after the appengine {...} structure:
task appengineDeployTesting {
doLast{
appengine.deploy.project = "my-awesome-project"
}
}
appengineDeployTesting.finalizedBy appengineDeploy
Then running the command:
gradle appengineDeployTesting
Will first run the appengineDeployTesting task, and once finished will set the new project name and run the appengineDeploy task to deploy.