jMonkeyEngine/version.gradle

import java.text.SimpleDateFormat
import org.ajoberstar.grgit.*

buildscript {
    repositories {
        mavenCentral()
    }
    dependencies {
        classpath 'org.ajoberstar:gradle-git:1.2.0'
    }
}

ext {
    jmeRevision     = 0
    jmeGitHash      = ""
    jmeGitTag       = ""
    jmeShortGitHash = ""
    jmeBuildDate    = new SimpleDateFormat("yyyy-MM-dd").format(new Date())
    jmeBranchName   = "unknown"
    jmeFullVersion  = "${jmeVersion}-SNAPSHOT"
    jmeVersionTag="SNAPSHOT"
}

task configureVersionInfo {
    try {
        def grgit = Grgit.open(project.file('.'))
        def head = grgit.head()
        jmeRevision = grgit.log(includes: [head]).size()
        jmeGitHash = head.id
        jmeShortGitHash = head.abbreviatedId
        jmeBranchName = grgit.branch.current.name
        jmeGitTag = grgit.tag.list().find { it.commit == head }

        if(jmeVersionName==""){
            if (jmeGitTag != null) {
                jmeGitTag = jmeGitTag.name
                jmeFullVersion  = jmeGitTag
                jmeVersionTag = ""
            } else {
                if(useCommitHashAsVersionName=="true"&&jmeGitHash!=null&&!jmeGitHash.equals("")){
                    jmeFullVersion  = jmeGitHash
                    jmeVersionTag = ""
                }else{
                    jmeFullVersion="${jmeVersion}-";
                    if(jmeBranchName!="master")jmeFullVersion+="${jmeBranchName}-";
                    jmeFullVersion+="SNAPSHOT"
                    jmeVersionTag="SNAPSHOT"
                }
            }
        }else{
            jmeVersionTag=""
            jmeFullVersion=jmeVersionName
        }

    
        println("Revision: ${jmeRevision}")
        println("Hash: ${jmeGitHash}")
        println("Short Hash: ${jmeShortGitHash}")
        println("Tag: ${jmeGitTag}")
        println("Build Date: ${jmeBuildDate}")
        println("Build Branch: ${jmeBranchName}")
        println("Use commit hash as version ${useCommitHashAsVersionName}")
        println("Build Tag: ${jmeVersionTag}")
        println("Build Version: ${jmeFullVersion}")

    } catch (ex) {
        // Failed to get repo info
        logger.warn("Failed to get repository info: " + ex.message + ". " + \
                    "Only partial build info will be generated.")
    }
}