#!/usr/bin/env groovy
/*
* All or portions of this file Copyright (c) Amazon.com, Inc. or its affiliates or
* its licensors.
*
* For complete copyright and license terms please see the LICENSE at the root of this
* distribution (the "License"). All use of this software is governed by the License,
* or, if provided, by the license below or the license accompanying this file. Do not
* remove or modify any license notices. This file is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
*
*/

PIPELINE_CONFIG_FILE = 'AutomatedReview/lumberyard.json'
INCREMENTAL_BUILD_SCRIPT_PATH = 'scripts/build/bootstrap/incremental_build_util.py'

EMPTY_JSON = readJSON text: '{}'

ENGINE_REPOSITORY_NAME = 'o3de'

def pipelineProperties = []

def pipelineParameters = [
    // Build/clean Parameters
    // The CLEAN_OUTPUT_DIRECTORY is used by ci_build scripts. Creating the parameter here passes it as an environment variable to jobs and is consumed that way
    booleanParam(defaultValue: false, description: 'Deletes the contents of the output directory before building. This will cause a \"clean\" build. NOTE: does not imply CLEAN_ASSETS', name: 'CLEAN_OUTPUT_DIRECTORY'),
    booleanParam(defaultValue: false, description: 'Deletes the contents of the output directories of the AssetProcessor before building.', name: 'CLEAN_ASSETS'),
    booleanParam(defaultValue: false, description: 'Deletes the contents of the workspace and forces a complete pull.', name: 'CLEAN_WORKSPACE'),
    booleanParam(defaultValue: false, description: 'Recreates the volume used for the workspace. The volume will be created out of a snapshot taken from main.', name: 'RECREATE_VOLUME'),
    string(defaultValue: '', description: 'Filters and overrides the list of jobs to run for each of the below platforms (comma-separated). Can\'t be used during a pull request.', name: 'JOB_LIST_OVERRIDE'),

    // Pull Request Parameters
    string(defaultValue: '', description: '', name: 'DESTINATION_BRANCH'),
    string(defaultValue: '', description: '', name: 'DESTINATION_COMMIT'),
    string(defaultValue: '', description: '', name: 'PULL_REQUEST_ID'),
    string(defaultValue: '', description: '', name: 'REPOSITORY_NAME'),
    string(defaultValue: '', description: '', name: 'SOURCE_BRANCH'),
    string(defaultValue: '', description: '', name: 'SOURCE_COMMIT')
]

def palSh(cmd, lbl = '', winSlashReplacement = true) {
    if (env.IS_UNIX) {
        sh label: lbl,
           script: cmd
    } else if (winSlashReplacement) {
        bat label: lbl,
            script: cmd.replace('/','\\')
    } else {
        bat label: lbl,
            script: cmd
    }
}

def palMkdir(path) {
    if (env.IS_UNIX) {
        sh label: "Making directories ${path}",
           script: "mkdir -p ${path}"
    } else {
        def win_path = path.replace('/','\\')
        bat label: "Making directories ${win_path}",
            script: "mkdir ${win_path}."
    }
}

def palRm(path) {
    if (env.IS_UNIX) {
        sh label: "Removing ${path}",
           script: "rm ${path}"
    } else {
        def win_path = path.replace('/','\\')
        bat label: "Removing ${win_path}",
            script: "del ${win_path}"
    }
}

def palRmDir(path) {
    if (env.IS_UNIX) {
        sh label: "Removing ${path}",
           script: "rm -rf ${path}"
    } else {
        def win_path = path.replace('/','\\')
        bat label: "Removing ${win_path}",
            script: "rd /s /q ${win_path}"
    }
}

def IsJobEnabled(buildTypeMap, pipelineName, platformName) {
    def job_list_override = params.JOB_LIST_OVERRIDE.tokenize(',')
    if(params.PULL_REQUEST_ID) { // dont allow pull requests to filter platforms/jobs
        if(buildTypeMap.value.TAGS) {
            return buildTypeMap.value.TAGS.contains(pipelineName)
        }
    } else if (!job_list_override.isEmpty()) {
        return params[platformName] && job_list_override.contains(buildTypeMap.key);
    } else {
        if (params[platformName]) {
            if(buildTypeMap.value.TAGS) {
                return buildTypeMap.value.TAGS.contains(pipelineName)
            }    
        }
    }
    return false
}

def GetRunningPipelineName(JENKINS_JOB_NAME) {
    // If the job name has an underscore
    def job_parts = JENKINS_JOB_NAME.tokenize('/')[0].tokenize('_')
    if (job_parts.size() > 1) {
        return [job_parts.take(job_parts.size() - 1).join('_'), job_parts[job_parts.size()-1]]
    }
    return [job_parts[0], 'default']
}

@NonCPS
def RegexMatcher(str, regex) {
    def matcher = (str =~ regex)
    return matcher ? matcher.group(1) : null
}

def LoadPipelineConfig(String pipelineName, String branchName, String scmType) {
    echo 'Loading pipeline config'
    if (scmType == 'codecommit') {
        PullFilesFromGit(PIPELINE_CONFIG_FILE, branchName, true, ENGINE_REPOSITORY_NAME)
    }
    def pipelineConfig = {}
    pipelineConfig = readJSON file: PIPELINE_CONFIG_FILE
    palRm(PIPELINE_CONFIG_FILE)
    pipelineConfig.platforms = EMPTY_JSON

    // Load the pipeline configs per platform
    pipelineConfig.PIPELINE_CONFIGS.each { pipeline_config ->
        def platform_regex = pipeline_config.replace('.','\\.').replace('*', '(.*)')
        if (!env.IS_UNIX) {
            platform_regex = platform_regex.replace('/','\\\\')
        }
        echo "Downloading platform pipeline configs ${pipeline_config}"
        if (scmType == 'codecommit') {
            PullFilesFromGit(pipeline_config, branchName, false, ENGINE_REPOSITORY_NAME)
        }
        echo "Searching platform pipeline configs in ${pipeline_config} using ${platform_regex}"
        for (pipeline_config_path in findFiles(glob: pipeline_config)) {
            echo "\tFound platform pipeline config ${pipeline_config_path}"
            def platform = RegexMatcher(pipeline_config_path, platform_regex)
            if(platform) {
                pipelineConfig.platforms[platform] = EMPTY_JSON
                pipelineConfig.platforms[platform].PIPELINE_ENV = readJSON file: pipeline_config_path.toString()
            }
            palRm(pipeline_config_path.toString())
        }
    }

    // Load the build configs
    pipelineConfig.BUILD_CONFIGS.each { build_config ->
        def platform_regex = build_config.replace('.','\\.').replace('*', '(.*)')
        if (!env.IS_UNIX) {
            platform_regex = platform_regex.replace('/','\\\\')
        }
        echo "Downloading configs ${build_config}"
        if (scmType == 'codecommit') {
            PullFilesFromGit(build_config, branchName, false, ENGINE_REPOSITORY_NAME)
        }
        echo "Searching configs in ${build_config} using ${platform_regex}"
        for (build_config_path in findFiles(glob: build_config)) {
            echo "\tFound config ${build_config_path}"
            def platform = RegexMatcher(build_config_path, platform_regex)
            if(platform) {
                pipelineConfig.platforms[platform].build_types = readJSON file: build_config_path.toString()
            }
        }
    }
    return pipelineConfig
}

def GetSCMType() {
    def gitUrl = scm.getUserRemoteConfigs()[0].getUrl()
    if (gitUrl ==~ /https:\/\/git-codecommit.*/) {
        return 'codecommit'
    } else if (gitUrl ==~ /https:\/\/github.com.*/) {
        return 'github'
    }
    return 'unknown'
}

def GetBuildEnvVars(Map platformEnv, Map buildTypeEnv, String pipelineName) {
    def envVarMap = [:]
    platformPipelineEnv = platformEnv['ENV'] ?: [:]
    platformPipelineEnv.each { var ->
        envVarMap[var.key] = var.value
    }
    platformEnvOverride = platformEnv['PIPELINE_ENV_OVERRIDE'] ?: [:]
    platformPipelineEnvOverride = platformEnvOverride[pipelineName] ?: [:]
    platformPipelineEnvOverride.each { var ->
        envVarMap[var.key] = var.value
    }
    buildTypeEnv.each { var ->
        // This may override the above one if there is an entry defined by the job
        envVarMap[var.key] = var.value 
    }
    
    // Environment that only applies to to Jenkins tweaks.
    // For 3rdParty downloads, we store them in the EBS volume so we can reuse them across node
    // instances. This allow us to scale up and down without having to re-download 3rdParty
    envVarMap['LY_PACKAGE_DOWNLOAD_CACHE_LOCATION'] = "${envVarMap['WORKSPACE']}/3rdParty/downloaded_packages"
    envVarMap['LY_PACKAGE_UNPACK_LOCATION'] = "${envVarMap['WORKSPACE']}/3rdParty/packages"

    return envVarMap
}

def GetEnvStringList(Map envVarMap) {
    def strList = []
    envVarMap.each { var ->
        strList.add("${var.key}=${var.value}")
    }
    return strList
}

// Pulls/downloads files from the repo through codecommit. Despite Glob matching is NOT supported, '*' is supported
// as a folder or filename (not a portion, it has to be the whole folder or filename)
def PullFilesFromGit(String filenamePath, String branchName, boolean failIfNotFound = true, String repositoryName = env.DEFAULT_REPOSITORY_NAME) {
    echo "PullFilesFromGit filenamePath=${filenamePath} branchName=${branchName} repositoryName=${repositoryName}"
    def folderPathParts = filenamePath.tokenize('/')
    def filename = folderPathParts[folderPathParts.size()-1]
    folderPathParts.remove(folderPathParts.size()-1) // remove the filename
    def folderPath = folderPathParts.join('/')
    if (folderPath.contains('*')) {
        
        def currentPath = ''
        for (int i = 0; i < folderPathParts.size(); i++) {
            if (folderPathParts[i] == '*') {
                palMkdir(currentPath)
                retry(3) { palSh("aws codecommit get-folder --repository-name ${repositoryName} --commit-specifier ${branchName} --folder-path ${currentPath} > ${currentPath}/.codecommit", "GetFolder ${currentPath}") }
                def folderInfo = readJSON file: "${currentPath}/.codecommit"
                folderInfo.subFolders.each { folder ->
                    def newSubPath = currentPath + '/' + folder.relativePath
                    for (int j = i+1; j < folderPathParts.size(); j++) {
                        newSubPath = newSubPath + '/' + folderPathParts[j]
                    }
                    newSubPath = newSubPath + '/' + filename
                    PullFilesFromGit(newSubPath, branchName, false, repositoryName)
                }
                palRm("${currentPath}/.codecommit")
            }
            if (i == 0) {
                currentPath = folderPathParts[i]
            } else {
                currentPath = currentPath + '/' + folderPathParts[i]
            }
        }

    } else if (filename.contains('*')) {

        palMkdir(folderPath)
        retry(3) { palSh("aws codecommit get-folder --repository-name ${repositoryName} --commit-specifier ${branchName} --folder-path ${folderPath} > ${folderPath}/.codecommit", "GetFolder ${folderPath}") }
        def folderInfo = readJSON file: "${folderPath}/.codecommit"
        folderInfo.files.each { file ->
            PullFilesFromGit("${folderPath}/${filename}", branchName, false, repositoryName)
        }
        palRm("${folderPath}/.codecommit")

    } else {

        def errorFile = "${folderPath}/error.txt" 
        palMkdir(folderPath)
        retry(3) {
            try {
                if(env.IS_UNIX) {
                    sh label: "Downloading ${filenamePath}",
                       script: "aws codecommit get-file --repository-name ${repositoryName} --commit-specifier ${branchName} --file-path ${filenamePath} --query fileContent --output text 2>${errorFile} > ${filenamePath}_encoded"
                    sh label: 'Decoding',
                       script: "base64 --decode ${filenamePath}_encoded > ${filenamePath}"
                } else {
                    errorFile = errorFile.replace('/','\\')
                    win_filenamePath = filenamePath.replace('/', '\\')
                    bat label: "Downloading ${win_filenamePath}",
                        script: "aws codecommit get-file --repository-name ${repositoryName} --commit-specifier ${branchName} --file-path ${filenamePath} --query fileContent --output text 2>${errorFile} > ${win_filenamePath}_encoded"
                    bat label: 'Decoding',                            
                        script: "certutil -decode ${win_filenamePath}_encoded ${win_filenamePath}"
                }
                palRm("${filenamePath}_encoded")
            } catch (Exception ex) {
                def error = ''
                if(fileExists(errorFile)) {
                    error = readFile errorFile
                }
                if (!error || !(!failIfNotFound && error.contains('FileDoesNotExistException'))) {
                    palRm("${errorFile} ${filenamePath}.encoded ${filenamePath}")
                    throw new Exception("Could not get file: ${filenamePath}, ex: ${ex}, stderr: ${error}")
                }
            }
            palRm(errorFile)
        }
    }
}

def SetLfsCredentials(cmd, lbl = '') {
    if (env.IS_UNIX) {
        sh label: lbl,
           script: cmd
    } else { 
        bat label: lbl,
            script: cmd
    }
}

def CheckoutBootstrapScripts(String branchName) {
    checkout([$class: "GitSCM",
            branches: [[name: "*/${branchName}"]],
            doGenerateSubmoduleConfigurations: false,
            extensions: [
              [
                $class: "SparseCheckoutPaths",
                sparseCheckoutPaths: [
                  [ $class: "SparseCheckoutPath", path: "AutomatedReview/" ],
                  [ $class: "SparseCheckoutPath", path: "scripts/build/bootstrap/" ],
                  [ $class: "SparseCheckoutPath", path: "Tools/build/JenkinsScripts/build/Platform" ]
                ]
              ],
              [
                $class: "CloneOption", depth: 1, noTags: false, reference: "", shallow: true
              ]
            ],
            submoduleCfg: [],
            userRemoteConfigs: scm.userRemoteConfigs
          ])
}

def CheckoutRepo(boolean disableSubmodules = false) {
    dir(ENGINE_REPOSITORY_NAME) {
        palSh('git lfs uninstall', 'Git LFS Uninstall') // Prevent git from pulling lfs objects during checkout

        if(fileExists('.git')) {
            // If the repository after checkout is locked, likely we took a snapshot while git was running,
            // to leave the repo in a usable state, garbagecollect. This also helps in situations where 
            def indexLockFile = '.git/index.lock'
            if(fileExists(indexLockFile)) {
                palSh('git gc', 'Git GarbageCollect')
            }
            if(fileExists(indexLockFile)) { // if it is still there, remove it
                palRm(indexLockFile)
            }
        }
    }

    def random = new Random()
    def retryAttempt = 0
    retry(5) {
        if (retryAttempt > 0) {
            sleep random.nextInt(60 * retryAttempt)  // Stagger checkouts to prevent HTTP 429 (Too Many Requests) response from CodeCommit
        }
        retryAttempt = retryAttempt + 1
        if(params.PULL_REQUEST_ID) {
            // This is a pull request build. Perform merge with destination branch before building.
            dir(ENGINE_REPOSITORY_NAME) {
                checkout scm: [
                    $class: 'GitSCM',
                    branches: scm.branches,
                    extensions: [
                        [$class: 'PreBuildMerge', options: [mergeRemote: 'origin', mergeTarget: params.DESTINATION_BRANCH]],
                        [$class: 'SubmoduleOption', disableSubmodules: disableSubmodules, recursiveSubmodules: true],
                        [$class: 'CheckoutOption', timeout: 60]
                    ],
                    userRemoteConfigs: scm.userRemoteConfigs
                ]
            }
        } else {
            dir(ENGINE_REPOSITORY_NAME) {
                checkout scm: [
                    $class: 'GitSCM',
                    branches: scm.branches,
                    extensions: [
                        [$class: 'SubmoduleOption', disableSubmodules: disableSubmodules, recursiveSubmodules: true],
                        [$class: 'CheckoutOption', timeout: 60]
                    ],
                    userRemoteConfigs: scm.userRemoteConfigs
               ]
            }
        }
    }

    // Add folder where we will store the 3rdParty downloads and packages
    if(!fileExists('3rdParty')) {
        palMkdir('3rdParty')
    }    

    dir(ENGINE_REPOSITORY_NAME) {
        // Run lfs in a separate step. Jenkins is unable to load the credentials for the custom LFS endpoint
        withCredentials([usernamePassword(credentialsId: "${env.GITHUB_USER}", passwordVariable: 'accesstoken', usernameVariable: 'username')]) {
            SetLfsCredentials("git config -f .lfsconfig lfs.url https://${username}:${accesstoken}@${env.LFS_URL}", 'Set credentials')
        }
        palSh('git lfs install', 'Git LFS Install')
        palSh('git lfs pull', 'Git LFS Pull')

        // CHANGE_ID is used by some scripts to identify uniquely the current change (usually metric jobs)
        palSh('git rev-parse HEAD > commitid', 'Getting commit id')
        env.CHANGE_ID = readFile file: 'commitid'
        env.CHANGE_ID = env.CHANGE_ID.trim()
        palRm('commitid')
    }
}

def PreBuildCommonSteps(Map pipelineConfig, String projectName, String pipeline, String branchName, String platform, String buildType, String workspace, boolean mount = true, boolean disableSubmodules = false) {
    echo 'Starting pre-build common steps...'

    if (mount) {
        unstash name: 'incremental_build_script'

        def pythonCmd = ''
        if(env.IS_UNIX) pythonCmd = 'sudo -E python -u '
        else pythonCmd = 'python -u '

        if(env.RECREATE_VOLUME.toBoolean()) {
            palSh("${pythonCmd} ${INCREMENTAL_BUILD_SCRIPT_PATH} --action delete --project ${projectName} --pipeline ${pipeline} --branch ${branchName} --platform ${platform} --build_type ${buildType}", 'Deleting volume')
        }
        timeout(5) {
            palSh("${pythonCmd} ${INCREMENTAL_BUILD_SCRIPT_PATH} --action mount --project ${projectName} --pipeline ${pipeline} --branch ${branchName} --platform ${platform} --build_type ${buildType}", 'Mounting volume')
        }

        if(env.IS_UNIX) {
            sh label: 'Setting volume\'s ownership',
               script: """
                if sudo test ! -d "${workspace}"; then
                    sudo mkdir -p ${workspace} 
                    cd ${workspace}/..
                    sudo chown -R lybuilder:root .
                fi
               """
        }
    }

    // Cleanup previous repo location, we are currently at the root of the workspace, if we have a .git folder
    // we need to cleanup. Once all branches take this relocation, we can remove this
    if(env.CLEAN_WORKSPACE.toBoolean() || fileExists("${workspace}/.git")) {
        if(fileExists(workspace)) {
            palRmDir(workspace)
        }
    }

    dir(workspace) {

        CheckoutRepo(disableSubmodules)

        // Get python
        dir(ENGINE_REPOSITORY_NAME) {
            if(env.IS_UNIX) {
            sh label: 'Getting python',
               script: 'python/get_python.sh'
            } else {
                bat label: 'Getting python',
                    script: 'python/get_python.bat'
            }

            if(env.CLEAN_OUTPUT_DIRECTORY.toBoolean() || env.CLEAN_ASSETS.toBoolean()) {
                def command = "${pipelineConfig.BUILD_ENTRY_POINT} --platform ${platform} --type clean"
                if (env.IS_UNIX) {
                    sh label: "Running ${platform} clean",
                       script: "${pipelineConfig.PYTHON_DIR}/python.sh -u ${command}"
                } else {
                    bat label: "Running ${platform} clean",
                        script: "${pipelineConfig.PYTHON_DIR}/python.cmd -u ${command}".replace('/','\\')
                }
            }
        }
    }
}

def Build(Map options, String platform, String type, String workspace) {
    def command = "${options.BUILD_ENTRY_POINT} --platform ${platform} --type ${type}"
    dir("${workspace}/${ENGINE_REPOSITORY_NAME}") {
        if (env.IS_UNIX) {
            sh label: "Running ${platform} ${type}",
               script: "${options.PYTHON_DIR}/python.sh -u ${command}"
        } else {
                bat label: "Running ${platform} ${type}",
                script: "${options.PYTHON_DIR}/python.cmd -u ${command}".replace('/','\\')
        }
    }
}

def TestMetrics(Map options, String workspace, String branchName, String repoName, String buildJobName, String outputDirectory, String configuration) {
    catchError(buildResult: null, stageResult: null) {
        def cmakeBuildDir = [workspace, ENGINE_REPOSITORY_NAME, outputDirectory].join('/')
        dir("${workspace}/${ENGINE_REPOSITORY_NAME}") {
            checkout scm: [
                $class: 'GitSCM',
                branches: [[name: '*/main']],
                extensions: [[$class: 'RelativeTargetDirectory', relativeTargetDir: 'mars']],
                userRemoteConfigs: [[url: "${env.MARS_REPO}", name: 'mars', credentialsId: "${env.GITHUB_USER}"]]
            ]
            withCredentials([usernamePassword(credentialsId: "${env.SERVICE_USER}", passwordVariable: 'apitoken', usernameVariable: 'username')]) {
                def command = "${options.PYTHON_DIR}/python.cmd -u mars/scripts/python/ctest_test_metric_scraper.py -e jenkins.creds.user ${username} -e jenkins.creds.pass ${apitoken} ${cmakeBuildDir} ${branchName} %BUILD_NUMBER% AR ${configuration} ${repoName} "
                bat label: "Publishing ${buildJobName} Test Metrics",
                script: command
            }
        }
    }
}

def PostBuildCommonSteps(String workspace, boolean mount = true) {
    echo 'Starting post-build common steps...'

    if(params.PULL_REQUEST_ID) {
        dir("${workspace}/${ENGINE_REPOSITORY_NAME}") {
            if(fileExists('.git')) {
                palSh('git reset --hard HEAD', 'Discard PR merge, git reset')
            }
        }
    }

    if (mount) {
        def pythonCmd = ''
        if(env.IS_UNIX) pythonCmd = 'sudo -E python -u '
        else pythonCmd = 'python -u '

        try {
            timeout(5) {
                palSh("${pythonCmd} ${INCREMENTAL_BUILD_SCRIPT_PATH} --action unmount", 'Unmounting volume')
            }
        } catch (Exception e) {
            echo "Unmount script error ${e}"
        }
    }
}

def CreateSetupStage(Map pipelineConfig, String projectName, String pipelineName, String branchName, String platformName, String jobName, Map environmentVars) {
    return {
        stage("Setup") {
            PreBuildCommonSteps(pipelineConfig, projectName, pipelineName, branchName, platformName, jobName,  environmentVars['WORKSPACE'], environmentVars['MOUNT_VOLUME'])
        }
    }
}

def CreateBuildStage(Map pipelineConfig, String platformName, String jobName, Map environmentVars) {
    return {
        stage("${jobName}") {
            Build(pipelineConfig, platformName, jobName, environmentVars['WORKSPACE'])
        }
    }
}

def CreateTestMetricsStage(Map pipelineConfig, String branchName, Map environmentVars, String buildJobName, String outputDirectory, String configuration) {
    return {
        stage("${buildJobName}_metrics") {
            TestMetrics(pipelineConfig, environmentVars['WORKSPACE'], branchName, env.DEFAULT_REPOSITORY_NAME, buildJobName, outputDirectory, configuration)
        }
    }
}

def CreateTeardownStage(Map environmentVars) {
    return {
        stage("Teardown") {
            PostBuildCommonSteps(environmentVars['WORKSPACE'], environmentVars['MOUNT_VOLUME'])
        }
    }
}

def projectName = ''
def pipelineName = ''
def branchName = ''
def pipelineConfig = {}

// Start Pipeline
try {
    stage('Setup Pipeline') {
        node('controller') {
            def envVarList = []
            if(isUnix()) {
                envVarList.add('IS_UNIX=1')
            }
            withEnv(envVarList) {
                timestamps {
                    (projectName, pipelineName) = GetRunningPipelineName(env.JOB_NAME) // env.JOB_NAME is the name of the job given by Jenkins
                    scmType = GetSCMType()

                    if(env.BRANCH_NAME) {
                        branchName = env.BRANCH_NAME
                    } else {
                        branchName = scm.branches[0].name // for non-multibranch pipelines
                        env.BRANCH_NAME = branchName // so scripts that read this environment have it (e.g. incremental_build_util.py)
                    }
                    pipelineProperties.add(disableConcurrentBuilds())

                    echo "Running \"${pipelineName}\" for \"${branchName}\"..."

                    if (scmType == 'github') {
                        CheckoutBootstrapScripts(branchName)
                    }

                    // Load configs
                    pipelineConfig = LoadPipelineConfig(pipelineName, branchName, scmType)
     
                    // Add each platform as a parameter that the user can disable if needed
                    pipelineConfig.platforms.each { platform ->
                        pipelineParameters.add(booleanParam(defaultValue: true, description: '', name: platform.key))
                    }
                    pipelineProperties.add(parameters(pipelineParameters))
                    properties(pipelineProperties)

                    // Stash the INCREMENTAL_BUILD_SCRIPT_PATH since all nodes will use it
                    if (scmType == 'codecommit') {
                        PullFilesFromGit(INCREMENTAL_BUILD_SCRIPT_PATH, branchName, true, ENGINE_REPOSITORY_NAME)
                    }
                    stash name: 'incremental_build_script',
                          includes: INCREMENTAL_BUILD_SCRIPT_PATH
                 }    
            }
        }
    }

    if(env.BUILD_NUMBER == '1') {
        // Exit pipeline early on the intial build. This allows Jenkins to load the pipeline for the branch and enables users 
        // to select build parameters on their first actual build. See https://issues.jenkins.io/browse/JENKINS-41929
        currentBuild.result = 'SUCCESS'
        return
    }

    // Build and Post-Build Testing Stage
    def buildConfigs = [:]

    // Platform Builds run on EC2
    pipelineConfig.platforms.each { platform ->
        platform.value.build_types.each { build_job ->
            if (IsJobEnabled(build_job, pipelineName, platform.key)) {   // User can filter jobs, jobs are tagged by pipeline
                def envVars = GetBuildEnvVars(platform.value.PIPELINE_ENV ?: EMPTY_JSON, build_job.value.PIPELINE_ENV ?: EMPTY_JSON, pipelineName)
                envVars['JOB_NAME'] = "${branchName}_${platform.key}_${build_job.key}" // backwards compatibility, some scripts rely on this
                def nodeLabel = envVars['NODE_LABEL']

                buildConfigs["${platform.key} [${build_job.key}]"] = { 
                    node("${nodeLabel}") {
                        if(isUnix()) { // Has to happen inside a node
                            envVars['IS_UNIX'] = 1
                        }                 
                        withEnv(GetEnvStringList(envVars)) {
                            timeout(time: envVars['TIMEOUT'], unit: 'MINUTES', activity: true) {
                                try {
                                    def build_job_name = build_job.key
                                    
                                    CreateSetupStage(pipelineConfig, projectName, pipelineName, branchName, platform.key, build_job.key, envVars).call()

                                    if(build_job.value.steps) { //this is a pipe with many steps so create all the build stages
                                        build_job.value.steps.each { build_step ->
                                            build_job_name = build_step
                                            CreateBuildStage(pipelineConfig,  platform.key, build_step, envVars).call()
                                        }
                                    } else {
                                        CreateBuildStage(pipelineConfig,  platform.key, build_job.key, envVars).call()
                                    }
                                    
                                    if (env.MARS_REPO && platform.key == 'Windows' && build_job_name.startsWith('test')) {
                                        def output_directory = platform.value.build_types[build_job_name].PARAMETERS.OUTPUT_DIRECTORY
                                        def configuration = platform.value.build_types[build_job_name].PARAMETERS.CONFIGURATION
                                        CreateTestMetricsStage(pipelineConfig, branchName, envVars, build_job_name, output_directory, configuration).call()
                                    }
                                }
                                catch(Exception e) {
                                    //  https://github.com/jenkinsci/jenkins/blob/master/core/src/main/java/hudson/model/Result.java
                                    //  {SUCCESS,UNSTABLE,FAILURE,NOT_BUILT,ABORTED}
                                    def currentResult = envVars['ON_FAILURE_MARK'] ?: 'FAILURE'
                                    if (currentResult == 'FAILURE') {
                                        currentBuild.result = 'FAILURE'
                                        error "FAILURE: ${e}"
                                    } else if (currentResult == 'UNSTABLE') {
                                        currentBuild.result = 'UNSTABLE'
                                        unstable(message: "UNSTABLE: ${e}")
                                    }
                                }
                                finally {
                                    CreateTeardownStage(envVars).call()
                                }
                            }
                        }
                    }
                }
            }
        }
    }

    timestamps {

        stage('Build') {
            parallel buildConfigs // Run parallel builds
        }

        echo 'All builds successful'
    }
}
catch(Exception e) {
    error "Exception: ${e}"
}
finally {
    try {
        if(env.SNS_TOPIC) {
            snsPublish(
                topicArn: env.SNS_TOPIC, 
                subject:'Build Result', 
                message:"${currentBuild.currentResult}:${params.REPOSITORY_NAME}:${params.SOURCE_BRANCH}:${params.SOURCE_COMMIT}:${params.DESTINATION_COMMIT}:${params.PULL_REQUEST_ID}:${BUILD_URL}:${env.RECREATE_VOLUME}:${env.CLEAN_OUTPUT_DIRECTORY}:${env.CLEAN_ASSETS}"
            )
        }
        step([
            $class: 'Mailer',
            notifyEveryUnstableBuild: true,
            sendToIndividuals: true,
            recipients: emailextrecipients([
                [$class: 'CulpritsRecipientProvider'],
                [$class: 'RequesterRecipientProvider']
            ])
        ])
    } catch(Exception e) {
    }
}