Merge pull request #617 from marcusholl/pr/resolvePlugins

Resolve plugins

documentation/bin/createDocu.groovy

@@ -1,5 +1,6 @@
 import groovy.io.FileType
 import groovy.json.JsonOutput
+import groovy.json.JsonSlurper
 import org.yaml.snakeyaml.Yaml
 import org.codehaus.groovy.control.CompilerConfiguration
 import com.sap.piper.GenerateDocumentation
@@ -14,6 +15,42 @@ import com.sap.piper.MapUtils
 //
 class TemplateHelper {
 
+    static createDependencyList(Set deps) {
+        def t = ''
+        t += 'The step depends on the following Jenkins plugins\n\n'
+        def filteredDeps = deps.findAll { dep -> dep != 'UNIDENTIFIED' }
+
+        if(filteredDeps.contains('kubernetes')) {
+            // The docker plugin is not detected by the tests since it is not
+            // handled via step call, but it is added to the environment.
+            // Hovever kubernetes plugin and docker plugin are closely related,
+            // hence adding docker if kubernetes is present.
+            filteredDeps.add('docker')
+        }
+
+        if(filteredDeps.isEmpty()) {
+            t += '* <none>\n'
+        } else {
+            filteredDeps
+                .sort()
+                .each { dep -> t += "* [${dep}](https://plugins.jenkins.io/${dep})\n" }
+        }
+
+        if(filteredDeps.contains('kubernetes')) {
+            t += "\nThe kubernetes plugin is only used if running in a kubernetes environment."
+        }
+
+        t += '''|
+                |Transitive dependencies are omitted.
+                |
+                |The list might be incomplete.
+                |
+                |Consider using the [ppiper/jenkins-master](https://cloud.docker.com/u/ppiper/repository/docker/ppiper/jenkins-master)
+                |docker image. This images comes with preinstalled plugins.
+                |'''.stripMargin()
+        return t
+    }
+
     static createParametersTable(Map parameters) {
 
         def t = ''
@@ -741,8 +778,10 @@ void renderStep(stepName, stepProperties) {
         docGenStepName      : stepName,
         docGenDescription   : 'Description\n\n' + stepProperties.description,
         docGenParameters    : 'Parameters\n\n' + TemplateHelper.createParametersSection(stepProperties.parameters),
-        docGenConfiguration : 'Step configuration\n\n' + TemplateHelper.createStepConfigurationSection(stepProperties.parameters)
+        docGenConfiguration : 'Step configuration\n\n' + TemplateHelper.createStepConfigurationSection(stepProperties.parameters),
+        docJenkinsPluginDependencies     : 'Dependencies\n\n' + TemplateHelper.createDependencyList(stepProperties.dependencies)
     ]
+
     def template = new StreamingTemplateEngine().createTemplate(theStepDocu.text)
     String text = template.make(binding)
 
@@ -802,6 +841,7 @@ def handleStep(stepName, prepareDefaultValuesStep, gse, customDefaults) {
 
     File theStep = new File(stepsDir, "${stepName}.groovy")
     File theStepDocu = new File(stepsDocuDir, "${stepName}.md")
+    File theStepDeps = new File('documentation/jenkins_workspace/plugin_mapping.json')
 
     if (!theStepDocu.exists() && stepName.indexOf('Stage') != -1) {
         //try to get a corresponding stage documentation
@@ -859,7 +899,18 @@ def handleStep(stepName, prepareDefaultValuesStep, gse, customDefaults) {
 
     // 'dependentConfig' is only present here for internal reasons and that entry is removed at
     // end of method.
-    def step = [parameters:[:], dependentConfig: [:]]
+    def step = [
+        parameters:[:],
+        dependencies: (Set)[],
+        dependentConfig: [:]
+    ]
+
+    //
+    // provide dependencies to Jenkins plugins
+    if(theStepDeps.exists()) {
+        def pluginDependencies = new JsonSlurper().parse(theStepDeps)
+        step.dependencies.addAll(pluginDependencies[stepName].collect { k, v -> k })
+    }
 
     //
     // START special handling for 'script' parameter

documentation/bin/createDocu.sh

@@ -3,6 +3,44 @@
 d=$(dirname "$0")
 [ !  -z  "$d"  ] &&  d="$d/"
 
+WS_OUT="$(pwd)/documentation/jenkins_workspace"
+WS_IN=/workspace
+
+STEP_CALL_MAPPING_FILE_NAME=step_calls_mapping.json
+PLUGIN_MAPPING_FILE_NAME=plugin_mapping.json
+
+CALLS="${WS_OUT}/${STEP_CALL_MAPPING_FILE_NAME}"
+PLUGIN_MAPPING="${WS_OUT}/${PLUGIN_MAPPING_FILE_NAME}"
+
+for f in ${CALLS} ${PLUGIN_MAPPING}
+do
+    [ -e "${f}" ] && rm -rf "${f}"
+done
+
 export CLASSPATH_FILE='target/cp.txt'
-mvn compile dependency:build-classpath -Dmdep.outputFile=${CLASSPATH_FILE} > /dev/null 2>&1
+mvn clean test dependency:build-classpath -Dmdep.outputFile=${CLASSPATH_FILE} > /dev/null 2>&1
+
+# --in: is created by the unit tests. It contains a mapping between the test case (name is
+# already adjusted).
+# --out: Contains a transformed version. The calls to other pipeline steps are resolved in a
+# transitive manner. This allows us to report all Jenkins plugin calls (also the calls which
+# are performed by other pipeline steps. E.g.: each step includes basically a call to
+# handlePipelineStepErrors. The Plugin calls issues by handlePipelineStepErrors are also
+# reported for the step calling that auxiliar step).
+groovy  "${d}resolveTransitiveCalls" -in target/trackedCalls.json --out "${CALLS}"
+
+[ -f "${CALLS}" ] || { echo "File \"${CALLS}\" does not exist." ; exit 1; }
+
+docker run \
+    -w "${WS_IN}" \
+    --env calls="${WS_IN}/${STEP_CALL_MAPPING_FILE_NAME}" \
+    --env result="${WS_IN}/${PLUGIN_MAPPING_FILE_NAME}" \
+    -v "${WS_OUT}:${WS_IN}"  \
+    ppiper/jenkinsfile-runner \
+        -ns \
+        -f Jenkinsfile \
+        --runWorkspace /workspace
+
+[ -f "${PLUGIN_MAPPING}" ] || { echo "Result file containing step to plugin mapping not found (${PLUGIN_MAPPING})."; exit 1;  }
+
 groovy -cp "target/classes:$(cat $CLASSPATH_FILE)" "${d}createDocu" "${@}"

documentation/bin/resolveTransitiveCalls.groovy

@@ -0,0 +1,181 @@
+import groovy.json.JsonSlurper
+
+def cli = new CliBuilder(
+    usage: 'groovy createDocu [<options>]',
+    header: 'Options:',
+    footer: 'Copyright: SAP SE')
+
+cli.with {
+    i longOpt: 'in', args: 1, argName: 'file', 'The file containing the mapping as created by the unit tests..'
+    o longOpt: 'out', args: 1, argName: 'file', 'The file containing the condenced mappings.'
+    h longOpt: 'help', 'Prints this help.'
+}
+
+def options = cli.parse(args)
+
+if(options.h) {
+    System.err << "Printing help.\n"
+    cli.usage()
+    return
+}
+
+if(! options.i) {
+    System.err << "No input file"
+    cli.usage()
+    return
+}
+if(! options.o) {
+    System.err << "No output file"
+    cli.usage()
+    return
+}
+
+def steps = new JsonSlurper().parseText(new File(options.i).text)
+
+def piperSteps = steps.piperSteps
+def calls = steps.calls
+
+// only temporary in order to avoid manipulating the map during
+// iterating over it.
+def tmpCalls = [:]
+
+// Adjust naming
+calls.each { c ->
+    tmpCalls.put(retrieveStepName(c.key), c.value as Set)
+}
+
+calls = tmpCalls
+tmpCalls = null
+
+// Remove selfs
+calls.each { c ->
+    c.value.remove(c.key)
+}
+
+int counter=0
+
+def alreadyHandled = []
+
+//
+// in case we exceed the value we assume some cyclic call
+// between plugin steps.
+int MAX_LOOP = 1600
+
+boolean done = false
+
+while(counter < MAX_LOOP) {
+
+    def hereWeNeedToReplace = null
+    def toBeReplaced = null
+
+    if(alreadyHandled.size() == calls.size()) {
+        done = true
+        break
+    }
+
+    for (def call in calls.entrySet()) {
+
+        stepName = call.key
+        calledSteps = call.value
+
+        if(alreadyHandled.contains(stepName)) {
+            continue
+        }
+
+        for (def calledStep in calledSteps) {
+
+            if(! ( calledStep in Map)) {
+
+                // in case the calledStep is a map the map
+                // was introduced in an earlier loop.
+                // This means this entry is already handled.
+
+                if(calledStep in piperSteps) {
+                    toBeReplaced = calledStep
+                    hereWeNeedToReplace = calledSteps
+                    break
+                }
+            }
+        }
+        if(toBeReplaced) {
+            def replacement = [:]
+            replacement[toBeReplaced] = calls[toBeReplaced] as Set
+            def removed = hereWeNeedToReplace.remove(toBeReplaced)
+            hereWeNeedToReplace.add(replacement)
+            counter++
+        } else {
+            alreadyHandled << stepName
+        }
+        break
+    }
+}
+
+if(! done) {
+    throw new Exception('Unable to resolve transitive plugin calls.')
+}
+
+piperStepCallMappings = [:]
+
+for(def entry : calls.entrySet()) {
+    def performedCalls = flatten(entry, (Set)[])
+    piperStepCallMappings.put(entry.key, performedCalls)
+}
+
+//
+// special handling since since changeManagement util class
+// is separated from the steps itself
+//
+// should be improved in the future in order not to have
+// that bells and whistles here.
+
+def cm = piperStepCallMappings.get('changeManagement')
+
+for (cmStepName in [
+    'checkChangeInDevelopment',
+    'transportRequestCreate',
+    'transportRequestUploadFile',
+    'transportRequestRelease',
+]) {
+    piperStepCallMappings.get(cmStepName).addAll(cm)
+}
+
+// end of special handling
+//
+
+File performedCalls = new File(options.o)
+if (performedCalls.exists()) performedCalls.delete()
+performedCalls << groovy.json.JsonOutput.toJson(piperStepCallMappings)
+
+def flatten(def entry, Set result) {
+
+    for(def e : entry.value) {
+        if(e in Map) { // the map here is expected to hold one entry always
+            for(def steps : e.entrySet().value) {
+                for(def step : steps) {
+                    if (step in Map) {
+                        flatten(step, result)
+                    } else {
+                        result << step
+                    }
+                }
+            }
+        } else {
+            result << e.value.toString()
+        }
+    }
+    result
+}
+
+static retrieveStepName(String s) {
+    firstCharToLowerCase(removeTrailing(s, 'Test'))
+}
+
+static removeTrailing(String s, String trail) {
+    return s.replaceAll(trail + '$', '')
+}
+
+static firstCharToLowerCase(CharSequence cs) {
+    char[] c = cs.getChars()
+    c[0] = Character.toLowerCase(c[0])
+    new String(c)
+}

documentation/docs/steps/artifactSetVersion.md

@@ -10,6 +10,8 @@ none
 
 ## ${docGenConfiguration}
 
+## ${docJenkinsPluginDependencies}
+
 ## Example
 
 ```groovy

documentation/docs/steps/batsExecuteTests.md

@@ -10,6 +10,8 @@ You need to have a Bats test file. By default you would put this into directory
 
 ## ${docGenConfiguration}
 
+## ${docJenkinsPluginDependencies}
+
 ## Example
 
 ```groovy

documentation/docs/steps/checkChangeInDevelopment.md

@@ -10,6 +10,8 @@
 
 ## ${docGenConfiguration}
 
+## ${docJenkinsPluginDependencies}
+
 ## Exceptions
 
 * `AbortException`:

documentation/docs/steps/checksPublishResults.md

@@ -82,6 +82,8 @@
 
 ## ${docGenConfiguration}
 
+## ${docJenkinsPluginDependencies}
+
 ### Thresholds
 
 It is possible to define thresholds to fail the build on a certain count of findings. To achive this, just define your thresholds a followed for the specific check tool:

documentation/docs/steps/cloudFoundryDeploy.md

@@ -13,6 +13,8 @@
 
 ## ${docGenConfiguration}
 
+## ${docJenkinsPluginDependencies}
+
 ## Example
 
 ```groovy

documentation/docs/steps/containerExecuteStructureTests.md

@@ -10,6 +10,8 @@ Test configuration is available.
 
 ## ${docGenConfiguration}
 
+## ${docJenkinsPluginDependencies}
+
 ## Example
 
 ```

documentation/docs/steps/detectExecuteScan.md

@@ -9,6 +9,8 @@ You need to store the API token for the Detect service as _'Secret text'_ creden
 !!! note "minimum plugin requirement"
     This step requires [synopsys-detect-plugin](https://github.com/jenkinsci/synopsys-detect-plugin) with at least version `2.0.0`.
 
+## ${docJenkinsPluginDependencies}
+
 ## Example
 
 ```groovy

documentation/docs/steps/dockerExecute.md

@@ -10,6 +10,8 @@ If the Jenkins is setup on a Kubernetes cluster, then you can execute the closur
 
 ## ${docGenConfiguration}
 
+## ${docJenkinsPluginDependencies}
+
 ## Side effects
 
 none

documentation/docs/steps/dockerExecuteOnKubernetes.md

@@ -13,6 +13,8 @@
 
 ## ${docGenConfiguration}
 
+## ${docJenkinsPluginDependencies}
+
 ## Side effects
 
 none

documentation/docs/steps/durationMeasure.md

@@ -6,6 +6,8 @@
 
 ## ${docGenConfiguration}
 
+## ${docJenkinsPluginDependencies}
+
 ## Example
 
 ```groovy

documentation/docs/steps/gaugeExecuteTests.md

@@ -12,6 +12,8 @@ none
 
 We recommend to define values of step parameters via [config.yml file](../configuration.md).
 
+## ${docJenkinsPluginDependencies}
+
 ## Example
 
 Pipeline step:

documentation/docs/steps/githubPublishRelease.md

@@ -1,17 +1,19 @@
 # ${docGenStepName}
 
-## ${docGenDescription}
-
 ## Prerequisites
 
 You need to create a personal access token within GitHub and add this to the Jenkins credentials store.
 
 Please see [GitHub documentation for details about creating the personal access token](https://help.github.com/articles/creating-a-personal-access-token-for-the-command-line/).
 
+## ${docJenkinsPluginDependencies}
+
 ## ${docGenParameters}
 
 ## ${docGenConfiguration}
 
+## ${docGenDescription}
+
 ## Example
 
 Usage of pipeline step:

documentation/docs/steps/handlePipelineStepErrors.md

@@ -10,6 +10,8 @@ none
 
 ## ${docGenConfiguration}
 
+## ${docJenkinsPluginDependencies}
+
 ## Example
 
 ```groovy

documentation/docs/steps/healthExecuteCheck.md

@@ -16,6 +16,8 @@ Endpoint for health check is configured.
 
 ## ${docGenConfiguration}
 
+## ${docJenkinsPluginDependencies}
+
 ## Example
 
 Pipeline step:

documentation/docs/steps/influxWriteData.md

@@ -67,6 +67,8 @@ influxDBServer=jenkins
 
 ## ${docGenConfiguration}
 
+## ${docJenkinsPluginDependencies}
+
 ## Example
 
 ```groovy

documentation/docs/steps/kanikoExecute.md

@@ -16,6 +16,8 @@ via _Jenkins_ -> _Credentials_ -> _System_ -> _Global credentials (unrestricted)
 * File: upload your `config.json` file
 * ID: specify id which you then use for the configuration of `dockerConfigJsonCredentialsId` (see below)
 
+## ${docJenkinsPluginDependencies}
+
 ## Example
 
 ```groovy

documentation/docs/steps/karmaExecuteTests.md

@@ -7,6 +7,8 @@
 * **running Karma tests** - have a NPM module with running tests executed with Karma
 * **configured WebDriver** - have the [`karma-webdriver-launcher`](https://github.com/karma-runner/karma-webdriver-launcher) package installed and a custom, WebDriver-based browser configured in Karma
 
+## ${docJenkinsPluginDependencies}
+
 ## ${docGenParameters}
 
 ## ${docGenConfiguration}

documentation/docs/steps/mailSendNotification.md

@@ -18,6 +18,8 @@ mailSendNotification script: this
 
 ## ${docGenConfiguration}
 
+## ${docJenkinsPluginDependencies}
+
 ## Side effects
 
 none

documentation/docs/steps/mavenExecute.md

@@ -6,6 +6,8 @@
 
 ## ${docGenConfiguration}
 
+## ${docJenkinsPluginDependencies}
+
 ## Exceptions
 
 None

documentation/docs/steps/mtaBuild.md

@@ -14,6 +14,8 @@ While using a custom docker file, ensure that the following tools are installed:
 
 ## ${docGenConfiguration}
 
+## ${docJenkinsPluginDependencies}
+
 ## Side effects
 
 1. The file name of the resulting archive is written to the `commonPipelineEnvironment` with variable name `mtarFileName`.

documentation/docs/steps/multicloudDeploy.md

@@ -1,11 +1,11 @@
 # ${docGenStepName}
 
-## ${docGenDescription}
-
 ## ${docGenParameters}
 
 ## ${docGenConfiguration}
 
+## ${docJenkinsPluginDependencies}
+
 ## Examples
 
 ```groovy

documentation/docs/steps/neoDeploy.md

@@ -18,6 +18,8 @@
 
 ## ${docGenConfiguration}
 
+## ${docJenkinsPluginDependencies}
+
 ## Side effects
 
 none

documentation/docs/steps/newmanExecute.md

@@ -14,6 +14,8 @@
 
 Step uses `dockerExecute` inside.
 
+## ${docJenkinsPluginDependencies}
+
 ## Exceptions
 
 none

documentation/docs/steps/npmExecute.md

@@ -1,12 +1,12 @@
 
 # ${docGenStepName}
 
-## ${docGenDescription}
-
 ## ${docGenParameters}
 
 ## ${docGenConfiguration}
 
+## ${docJenkinsPluginDependencies}
+
 ## Exceptions
 
 None

documentation/docs/steps/pipelineExecute.md

@@ -10,6 +10,8 @@ none
 
 ## ${docGenConfiguration}
 
+## ${docJenkinsPluginDependencies}
+
 ## Side effects
 
 none

documentation/docs/steps/pipelineRestartSteps.md

@@ -31,6 +31,8 @@ pipelineRestartSteps (script: this) {
 
 none
 
+## ${docJenkinsPluginDependencies}
+
 ## Exceptions
 
 none

documentation/docs/steps/pipelineStashFiles.md

@@ -34,6 +34,8 @@ The step is stashing files before and after the build. This is due to the fact,
 
 ## ${docGenConfiguration}
 
+## ${docJenkinsPluginDependencies}
+
 ## Explanation of pipeline step
 
 Usage of pipeline step:

documentation/docs/steps/pipelineStashFilesAfterBuild.md

@@ -1,7 +1,5 @@
 # ${docGenStepName}
 
-## ${docGenDescription}
-
 ## Prerequsites
 
 none
@@ -9,3 +7,5 @@ none
 ## ${docGenParameters}
 
 ## ${docGenConfiguration}
+
+## ${docJenkinsPluginDependencies}

documentation/docs/steps/pipelineStashFilesBeforeBuild.md

@@ -9,3 +9,5 @@ none
 ## ${docGenParameters}
 
 ## ${docGenConfiguration}
+
+## ${docJenkinsPluginDependencies}

documentation/docs/steps/piperPipelineStagePost.md

@@ -5,3 +5,5 @@
 ## ${docGenParameters}
 
 ## ${docGenConfiguration}
+
+## ${docJenkinsPluginDependencies}

documentation/docs/steps/prepareDefaultValues.md

@@ -10,6 +10,8 @@
 
 None
 
+## ${docJenkinsPluginDependencies}
+
 ## Example
 
 ```groovy

documentation/docs/steps/seleniumExecuteTests.md

@@ -68,6 +68,8 @@ webdriverio
 
 ## ${docGenConfiguration}
 
+## ${docJenkinsPluginDependencies}
+
 ## Side effects
 
 none

documentation/docs/steps/setupCommonPipelineEnvironment.md

@@ -10,6 +10,8 @@
 
 ## ${docGenConfiguration}
 
+## ${docJenkinsPluginDependencies}
+
 ## Side effects
 
 none

documentation/docs/steps/slackSendNotification.md

@@ -12,6 +12,8 @@
 
 ## ${docGenConfiguration}
 
+## ${docJenkinsPluginDependencies}
+
 ## Example
 
 Usage of pipeline step:

documentation/docs/steps/snykExecute.md

@@ -11,6 +11,8 @@
 
 ## ${docGenConfiguration}
 
+## ${docJenkinsPluginDependencies}
+
 ## Side effects
 
 Step uses `dockerExecute` inside.

documentation/docs/steps/sonarExecuteScan.md

@@ -11,6 +11,8 @@
 
 ## ${docGenConfiguration}
 
+## ${docJenkinsPluginDependencies}
+
 ## Exceptions
 
 none

documentation/docs/steps/testsPublishResults.md

@@ -79,6 +79,8 @@ testsPublishResults(
 
 ## ${docGenConfiguration}
 
+## ${docJenkinsPluginDependencies}
+
 ## Side effects
 
 none

documentation/docs/steps/transportRequestCreate.md

@@ -11,6 +11,8 @@
 
 ## ${docGenConfiguration}
 
+## ${docJenkinsPluginDependencies}
+
 The step is configured using a customer configuration file provided as
 resource in an custom shared library.
 

documentation/docs/steps/transportRequestRelease.md

@@ -10,6 +10,8 @@
 
 ## ${docGenConfiguration}
 
+## ${docJenkinsPluginDependencies}
+
 The step is configured using a customer configuration file provided as
 resource in an custom shared library.
 

documentation/docs/steps/transportRequestUploadFile.md

@@ -10,6 +10,8 @@
 
 ## ${docGenConfiguration}
 
+## ${docJenkinsPluginDependencies}
+
 The step is configured using a customer configuration file provided as
 resource in an custom shared library.
 

documentation/docs/steps/uiVeri5ExecuteTests.md

@@ -8,6 +8,8 @@
 
 ## ${docGenConfiguration}
 
+## ${docJenkinsPluginDependencies}
+
 ## Exceptions
 
 If you see an error like `fatal: Not a git repository (or any parent up to mount point /home/jenkins)` it is likely that your test description cannot be found.<br />

documentation/docs/steps/whitesourceExecuteScan.md

@@ -12,6 +12,8 @@ access protection imposed on the WhiteSource backend would simply allow access b
 
 ## ${docGenConfiguration}
 
+## ${docJenkinsPluginDependencies}
+
 ## Exceptions
 
 None

documentation/jenkins_workspace/Jenkinsfile

@@ -0,0 +1,71 @@
+import groovy.json.JsonOutput
+import groovy.json.JsonSlurper
+
+import jenkins.model.Jenkins
+
+unresolvableCalls = [
+    podTemplate:'kubernetes',
+    container: 'kubernetes',
+
+    docker: 'docker-plugin',
+
+    usernamePassword: 'credentials-binding',
+    string: 'credentials-binding',
+    file: 'credentials-binding',
+]
+
+node() {
+    stage('Resolve Plugins') {
+        try {
+            resolvePlugins()
+        } catch(Exception e) {
+            def result = System.getenv()['result']
+            new File(new File(result).getParentFile(), 'FAILURE').text = "${e.getMessage()}"
+            throw e
+        }
+    }
+}
+
+def resolvePlugins() {
+    def stepCallMapping = new JsonSlurper().parseText(new File(System.getenv()['calls']).text)
+
+    def stepPluginMapping = [:]
+
+    println "[INFO] Resolving plugins ..."
+
+    for(def step in stepCallMapping) {
+        def resolvedPlugins = [:]
+        for(def call in step.value) {
+            def resolvedPlugin = resolvePlugin(call)
+            if (! resolvedPlugin) {
+                resolvedPlugin = unresolvableCalls[call]
+                if(! resolvedPlugin) resolvedPlugin = 'UNIDENTIFIED'
+            }
+            if(resolvedPlugins[resolvedPlugin] == null)
+                resolvedPlugins[resolvedPlugin] = (Set)[]
+            resolvedPlugins[resolvedPlugin] << call
+            stepPluginMapping.put(step.key,resolvedPlugins)
+        }
+    }
+
+    def result = System.getenv()['result']
+    new File(result).write(new JsonOutput().toJson(stepPluginMapping))
+
+    println "[INFO] plugins resolved. Result: ${result}."
+}
+
+def resolvePlugin(call) {
+
+    def plugins = Jenkins.get().pluginManager.getPlugins()
+
+    def s = new org.jenkinsci.plugins.workflow.cps.Snippetizer()
+
+    def pDescs = s.getQuasiDescriptors(false)
+
+
+    for(def pd in pDescs) {
+        if(pd.getSymbol() == call)
+            return  pd.real.plugin?.shortName
+    }
+    return null
+}