Add versions to banner

[matrei]

Will by default output versions below banner like:

    >                                                                            <
    >                            ____           _ _                              <
    >                           / ___|_ __ __ _(_) |___                          <
    >                          | |  _| '__/ _` | | / __|                         <
    >                          | |_| | | | (_| | | \__ \                         <
    >                           \____|_|  \__,_|_|_|___/                         <
    >                          https://grails.apache.org/                        <
    >                                                                            <
            grails-test-examples-async-events-pubsub-demo: 7.1.0-SNAPSHOT         
           JVM: BellSoft 17.0.17 | Grails: 7.1.0-SNAPSHOT | Groovy: 4.0.29        
                         Spring Boot: 3.5.7 | Spring: 6.2.12

Behavior can be overridden:

import org.springframework.core.env.Environment

import grails.boot.GrailsApp
import grails.boot.GrailsBanner
import grails.boot.config.GrailsAutoConfiguration

class Application extends GrailsAutoConfiguration {
	
    static void main(String[] args) {
        new GrailsApp(Application).tap {
            banner = new GrailsBanner() {

                @Override
                String createBannerArt(Environment environment) {
                    'HELLO WORLD'
                }

                @Override
                Map<String, String> createBannerVersions(Environment environment) {
                    if (System.getenv('CI')) {
                        return super.createBannerVersions(environment) + ['my-custom-info': 'Hello in CI']
                    }
                    return super.createBannerVersions(environment)
                }

                @Override
                boolean shouldDisplayArt(Environment environment) {
                    false
                }

                @Override
                boolean shouldDisplayVersions(Environment environment) {
                    true
                }

            }
        }.run()
    }
}

and the individual parts can be disabled with config properties:

grails:
  banner:
    display:
      art: false
      versions: true

[sbglasius]

What a great idea 😄

[sbglasius]

Can the java-version show what distribution it comes from (Amazon, Belsoft, Oracle, etc?)

To answer myself: System.getProperty('java.vendor')

[sbglasius]

Something like this: #15230

[codeconsole]

looks nice, but I wonder I wonder if it should also display when banner is off? In all my apps, I have been using

log.info "${Metadata.current['info.app.name']}  v${Metadata.current['info.app.version']} (Java ${System.getProperty('java.version')} Groovy ${GroovySystem.getVersion()} Grails ${Metadata.current['info.app.grailsVersion']} Spring Boot ${SpringBootVersion.version} Spring ${SpringVersion.version})"

because it is useful for troubleshooting to know what versions you are running. I have banner off because I don't want to fill my logs with a banner (especially when I am running multiple instances).

Or have a separate setting to display it if banner is off?

[sbglasius]

Suggestion: If this was split out into a protected method, it would be possible for anyone to extend the GrailsBanner and the list, with information from CI/CD etc.

[matrei]

@sbglasius See updated PR description.

[matrei]

looks nice, but I wonder I wonder if it should also display when banner is off? In all my apps, I have been using

log.info "${Metadata.current['info.app.name']}  v${Metadata.current['info.app.version']} (Java ${System.getProperty('java.version')} Groovy ${GroovySystem.getVersion()} Grails ${Metadata.current['info.app.grailsVersion']} Spring Boot ${SpringBootVersion.version} Spring ${SpringVersion.version})"

because it is useful for troubleshooting to know what versions you are running. I have banner off because I don't want to fill my logs with a banner (especially when I am running multiple instances).

Or have a separate setting to display it if banner is off?

@codeconsole See updated PR description, will this accommodate your use case?