import groovy.json.JsonSlurper@NonCPS

def parseFileInfo(uploadFiles) {
    List listMaps = []
    if (uploadFiles == "No changes") {
        println("No file changes found in the lastest commit")
    } else {
        def getList = new JsonSlurper().parseText(uploadFiles)
        getList.each {listMaps.add(it)}
    }
    return listMaps
}

@NonCPS
def artifactoryUpload(uploadFiles) {
    def deployFiles = parseFileInfo(uploadFiles)
    for (dFile in deployFiles) {
        println("Src: ${dFile['path']}, File: ${dFile['name']}, Channel: ${dFile['channel']}")
        def server = Artifactory.newServer url: "https://${afUrl}", credentialsId: "${afCredId}"
        def uploadSpec = """{
            "files": [{
                "pattern": \"${dFile['path']}\",
                "target": \"${repoUrl}/builds/${dFile['channel']}/\"
            }]
        }"""
        echo uploadSpec
        server.upload spec: uploadSpec
    }
}

pipeline {
    agent { label "python" }
    stages {
        stage ('Latest changes') {
            steps {
                script {
                    uploadFiles = checkFiles('latest_changes')
                }
            }
        }
        stage ('Deploy') {
            when {
                expression { UPLOAD_CHANGES == "true" }
            }
            steps {
                script {
                    artifactoryUpload(uploadFiles)
                }
            }
        }
    }
}

// I have this list of files in groovy list maps format to upload

[   {
     "name": "channel.cfg",
     "channel": "a",
     "path": "channels/a/channel.cfg"
     },
     {
     "name": "channel.spc",
     "channel": "a",
     "path": "channels/a/channel.spc"
     },
     {
     "name": "channel.json",
     "channel": "a",
     "path": "channels/a/channel.json"
     }
 ]
[Pipeline] { (Deploy)
[Pipeline] script
[Pipeline] {
[Pipeline] echo
Src: channels/a/channel.cfg, File: channel.cfg, Channel: a
[Pipeline] newArtifactoryServer
[Pipeline] echo
{
                "files": [{
                    "pattern": "channels/a/channel.cfg",
                    "target": "my-build/builds/a/"
                }]
            }
[Pipeline] newBuildInfo
[Pipeline] artifactoryUpload
[consumer_0] Deploying artifact: https://xyz.com/artifactory/my-build/builds/a/channel.cfg
[Pipeline] }
[Pipeline] // script
.
.
.
[Pipeline] End of Pipeline
Finished: SUCCESS