updateVersions.gradle

buildscript {
    repositories {
        mavenCentral()
    }
    dependencies {
        //testCompile group: 'junit', name: 'junit', version: '4.11'
        //compile 'commons-lang:commons-lang:2.6'
        classpath 'commons-lang:commons-lang:2.6','net.java.dev.jets3t:jets3t:0.9.2'
    }
}

import org.jets3t.service.impl.rest.httpclient.RestS3Service;
import org.jets3t.service.S3ServiceException;
import org.jets3t.service.model.S3Object;
import org.jets3t.service.model.S3Bucket;

class Settings{

    String bucketName="raml-tools-stage.mulesoft.com";
    String versionStorage="all-versions/";
    String commonPart="raml-for-jax-rs";
    String commonPrefix=commonPart+"-";

    File projectFolder;

    private Settings(){

    }

    public static Settings INSTANCE=new Settings();
}
Map ENV = System.getenv()
ENV = System.getenv()
String awsAccessKey = ENV['AWSKEY']
String awsSecretKey = ENV['AWSSECRET']
String bucketName=ENV['BUCKET'];
Settings.INSTANCE.projectFolder=projectDir;

task updateVersions(){
    String version=determineBuildVersion(Settings.INSTANCE,false);
    updateVersionsRecurrently(version,Settings.INSTANCE.projectFolder);
}
public void updateVersionsRecurrently(String version,File folder){
    File pom=new File(folder,"pom.xml");
    if (pom.exists()){
        rewriteAVersion(version,pom);
    }
    File mf=new File(folder,"MANIFEST.MF");
    if (mf.exists()){
        rewriteAManifest(version,mf);
    }
    File feature=new File(folder,"feature.xml");
    if (feature.exists()){
        rewriteAFeature(version,feature);
    }
    File category=new File(folder,"category.xml");
    if (category.exists()){
        rewriteACategory(version,category);
    }
    for (File f:folder.listFiles()){
        if (f.isDirectory()){
            updateVersionsRecurrently(version,f);
        }
    }
}
public void rewriteAVersion(String newVersion,File fl){
    ArrayList<String>newLines=new ArrayList<>();
    boolean  insideDetails=false;
    for (String line:fl.readLines()){
        int pos=line.indexOf("<version>");
        if (line.indexOf("<dependency>")!=-1){
            insideDetails=true;
        }
        if (line.indexOf("</dependency>")!=-1){
            insideDetails=false;
        }
        if (line.indexOf("<plugin>")!=-1){
            insideDetails=true;
        }
        if (line.indexOf("<extensions>")!=-1){
            insideDetails=true;
        }
        if (line.indexOf("</extensions>")!=-1){
            insideDetails=false;
        }
        if (line.indexOf("</plugin>")!=-1){
            insideDetails=false;
        }
        if (!insideDetails) {
            if (pos != -1) {
                line = line.substring(pos + "<version>".length());
                pos = line.indexOf("</version>");
                if (pos != -1) {
                    line = line.substring(0, pos).trim();
                    if (line.endsWith("-SNAPSHOT")) {
                        line = line.substring(0, line.length() - "-SNAPSHOT".length());
                    }
                    line = "<version>" + newVersion + "</version>";
                }
            }
        }
        newLines.add(line);
    }
    PrintWriter we=fl.newPrintWriter();
    for (String q: newLines){
        we.println(q);
    }
    we.close();
}
public void rewriteAFeature(String newVersion,File fl){
    ArrayList<String>newLines=new ArrayList<>();
    boolean  insideDetails=true;

    for (String line:fl.readLines()){
        if (line.trim().startsWith("<feature")){
            insideDetails=false;
        }
        if (!insideDetails){
            int c=line.indexOf("version=\"");
            if (c!=-1){
                String startLine=line.substring(0,c);
                int e=line.indexOf('"',c+"version=\"".length());
                String endLine=line.substring(e+1);
                println(startLine);
                println(endLine);
                line=startLine+"version=\""+newVersion.replace("-SNAPSHOT",".qualifier")+"\"";
            }
        }
        if (line.trim().contains(">")){
            insideDetails=true;
        }
        newLines.add(line);
    }
    PrintWriter we=fl.newPrintWriter();
    for (String q: newLines){
        we.println(q);
    }
    we.close();
}
public void rewriteACategory(String newVersion,File fl){
    ArrayList<String>newLines=new ArrayList<>();
    boolean  insideDetails=true;
    for (String line:fl.readLines()){
        if (line.trim().startsWith("<feature")) {
            int c=line.indexOf("id=\"");
            if (c!=-1){
                int e=line.indexOf('"',c+"id=\"".length());
                String featureId=line.substring(c+"id=\"".length(),e);
                String featureVer=newVersion.replace("-SNAPSHOT",".qualifier");
                String newLine="<feature url=\"features/"+featureId+"_"+featureVer+".jar\"" +
                        " id=\""+featureId+"\" version=\""+featureVer+"\">";
                line=newLine;
            }
        }
        newLines.add(line);
    }
    PrintWriter we=fl.newPrintWriter();
    for (String q: newLines){
        we.println(q);
    }
    we.close();
}
public void rewriteAManifest(String newVersion,File fl){
    ArrayList<String>newLines=new ArrayList<>();
    boolean  insideDetails=false;
    for (String line:fl.readLines()){
        if (line.trim().startsWith("Bundle-Version: ")){
            String manifestVersion=newVersion.replace("-SNAPSHOT",".qualifier");
            line="Bundle-Version: "+manifestVersion;
        }
        newLines.add(line);
    }
    PrintWriter we=fl.newPrintWriter();
    for (String q: newLines){
        we.println(q);
    }
    we.close();
}


/**
 *
 * @param settings
 * @return version number determined from the build
 */
public String determineBuildVersion(Settings settings,boolean stripSnapshot){
    File fl=new File(settings.getProjectFolder(),"pom.xml");
    for (String line:fl.readLines()){
        int pos=line.indexOf("<version>");
        if (pos!=-1){
            line=line.substring(pos+"<version>".length());
            pos=line.indexOf("</version>");
            if (pos!=-1){
                line=line.substring(0,pos).trim();
                if (line.endsWith("-SNAPSHOT")&&stripSnapshot){
                    line=line.substring(0,line.length()-"-SNAPSHOT".length());
                }
                return line;
            }
        }
    }
}