mirror of
https://github.com/SAP/jenkins-library.git
synced 2024-12-14 11:03:09 +02:00
720 lines
24 KiB
Groovy
720 lines
24 KiB
Groovy
import groovy.io.FileType
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import groovy.json.JsonOutput
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import groovy.json.JsonSlurper
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import org.yaml.snakeyaml.Yaml
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import org.codehaus.groovy.control.CompilerConfiguration
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import com.sap.piper.GenerateDocumentation
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import java.util.regex.Matcher
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import groovy.text.StreamingTemplateEngine
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import com.sap.piper.MapUtils
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//
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// Collects helper functions for rendering the documentation
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//
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class TemplateHelper {
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static createDependencyList(Set deps) {
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def t = ''
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t += 'The step depends on the following Jenkins plugins\n\n'
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def filteredDeps = deps.findAll { dep -> dep != 'UNIDENTIFIED' }
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if(filteredDeps.isEmpty()) {
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t += '* <none>\n'
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} else {
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filteredDeps
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.sort()
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.each { dep -> t += "* [${dep}](https://plugins.jenkins.io/${dep})\n" }
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}
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t += '\nTransitive dependencies are omitted.\n\nThis is a beta feature. The list might be incomplete.'
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return t
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}
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static createParametersTable(Map parameters) {
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def t = ''
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t += '| name | mandatory | default | possible values |\n'
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t += '|------|-----------|---------|-----------------|\n'
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parameters.keySet().toSorted().each {
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def props = parameters.get(it)
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def defaultValue = isComplexDefault(props.defaultValue) ? renderComplexDefaultValue(props.defaultValue) :
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props.defaultValue != null ? "`${props.defaultValue}`" : ''
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t += "| `${it}` | ${props.mandatory ?: props.required ? 'yes' : 'no'} | ${defaultValue} | ${props.value ?: ''} |\n"
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}
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t
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}
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private static boolean isComplexDefault(def _default) {
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if(! (_default in Collection)) return false
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if(_default.size() == 0) return false
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for(def entry in _default) {
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if(! (entry in Map)) return false
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if(! entry.dependentParameterKey) return false
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if(! entry.key) return false
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}
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return true
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}
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private static renderComplexDefaultValue(def _default) {
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_default
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.collect { "${it.dependentParameterKey}=`${it.key ?: '<empty>'}`:`${it.value ?: '<empty>'}`" }
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.join('<br />')
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}
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static createParameterDescriptionSection(Map parameters) {
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def t = ''
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parameters.keySet().toSorted().each {
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def props = parameters.get(it)
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t += "* `${it}` - ${props.docu ?: ''}\n"
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}
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t.trim()
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}
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static createParametersSection(Map parameters) {
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createParametersTable(parameters) + '\n' + createParameterDescriptionSection(parameters)
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}
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static createStepConfigurationSection(Map parameters) {
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def t = '''|We recommend to define values of step parameters via [config.yml file](../configuration.md).
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|In following sections of the config.yml the configuration is possible:\n\n'''.stripMargin()
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t += '| parameter | general | step/stage |\n'
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t += '|-----------|---------|------------|\n'
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parameters.keySet().toSorted().each {
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def props = parameters.get(it)
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t += "| `${it}` | ${props.GENERAL_CONFIG ? 'X' : ''} | ${props.STEP_CONFIG ? 'X' : ''} |\n"
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}
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t.trim()
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}
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}
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//
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// Collects generic helper functions
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//
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class Helper {
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static projectRoot = new File(Helper.class.protectionDomain.codeSource.location.path).getParentFile().getParentFile().getParentFile()
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static getConfigHelper(classLoader, roots, script) {
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def compilerConfig = new CompilerConfiguration()
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compilerConfig.setClasspathList( roots )
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new GroovyClassLoader(classLoader, compilerConfig, true)
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.parseClass(new File(projectRoot, 'src/com/sap/piper/ConfigurationHelper.groovy'))
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.newInstance(script, [:]).loadStepDefaults()
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}
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static getPrepareDefaultValuesStep(def gse) {
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def prepareDefaultValuesStep = gse.createScript('prepareDefaultValues.groovy', new Binding())
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prepareDefaultValuesStep.metaClass.handlePipelineStepErrors {
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m, c -> c()
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}
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prepareDefaultValuesStep.metaClass.libraryResource {
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f -> new File(projectRoot,"resources/${f}").text
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}
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prepareDefaultValuesStep.metaClass.readYaml {
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m -> new Yaml().load(m.text)
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}
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prepareDefaultValuesStep.metaClass.echo {
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m -> println(m)
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}
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prepareDefaultValuesStep
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}
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static getDummyScript(def prepareDefaultValuesStep, def stepName, Map prepareDefaultValuesStepParams) {
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def _prepareDefaultValuesStep = prepareDefaultValuesStep
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def _stepName = stepName
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return new Script() {
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def STEP_NAME = _stepName
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def prepareDefaultValues() {
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_prepareDefaultValuesStep(prepareDefaultValuesStepParams)
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}
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def run() {
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throw new UnsupportedOperationException()
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}
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}
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}
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static trim(List lines) {
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removeLeadingEmptyLines(
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removeLeadingEmptyLines(lines.reverse())
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.reverse())
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}
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private static removeLeadingEmptyLines(lines) {
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def _lines = new ArrayList(lines), trimmed = []
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boolean empty = true
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_lines.each() {
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if(empty && ! it.trim()) return
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empty = false
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trimmed << it
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}
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trimmed
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}
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private static normalize(Set p) {
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def normalized = [] as Set
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def interim = [:]
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p.each {
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def parts = it.split('/') as List
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_normalize(parts, interim)
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}
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interim.each { k, v -> flatten (normalized, k, v) }
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normalized
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}
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private static void _normalize(List parts, Map interim) {
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if( parts.size >= 1) {
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if( ! interim[parts.head()]) interim[parts.head()] = [:]
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_normalize(parts.tail(), interim[parts.head()])
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}
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}
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private static flatten(Set flat, def key, Map interim) {
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if( ! interim ) flat << (key as String)
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interim.each { k, v ->
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def _key = "${key}/${k}"
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if( v && v.size() > 0 )
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flatten(flat, _key, v)
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else
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flat << (_key as String)
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}
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}
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static void scanDocu(File f, Map step) {
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boolean docu = false,
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value = false,
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mandatory = false,
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parentObject = false,
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docuEnd = false
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def docuLines = [], valueLines = [], mandatoryLines = [], parentObjectLines = []
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f.eachLine {
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line ->
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if(line ==~ /.*dependingOn.*/) {
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def dependentConfigKey = (line =~ /.*dependingOn\('(.*)'\).mixin\('(.*)'/)[0][1]
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def configKey = (line =~ /.*dependingOn\('(.*)'\).mixin\('(.*)'/)[0][2]
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if(! step.dependentConfig[configKey]) {
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step.dependentConfig[configKey] = []
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}
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step.dependentConfig[configKey] << dependentConfigKey
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}
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if(docuEnd) {
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docuEnd = false
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if(isHeader(line)) {
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def _docu = []
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docuLines.each { _docu << it }
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_docu = Helper.trim(_docu)
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step.description = _docu.join('\n')
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} else {
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def param = retrieveParameterName(line)
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if(!param) {
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throw new RuntimeException('Cannot retrieve parameter for a comment')
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}
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def _docu = [], _value = [], _mandatory = [], _parentObject = []
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docuLines.each { _docu << it }
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valueLines.each { _value << it }
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mandatoryLines.each { _mandatory << it }
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parentObjectLines.each { _parentObject << it }
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_parentObject << param
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param = _parentObject*.trim().join('/').trim()
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if(step.parameters[param].docu || step.parameters[param].value)
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System.err << "[WARNING] There is already some documentation for parameter '${param}. Is this parameter documented twice?'\n"
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step.parameters[param].docu = _docu*.trim().join(' ').trim()
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step.parameters[param].value = _value*.trim().join(' ').trim()
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step.parameters[param].mandatory = _mandatory*.trim().join(' ').trim()
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}
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docuLines.clear()
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valueLines.clear()
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mandatoryLines.clear()
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parentObjectLines.clear()
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}
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if( line.trim() ==~ /^\/\*\*.*/ ) {
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docu = true
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}
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if(docu) {
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def _line = line
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_line = _line.replaceAll('^\\s*', '') // leading white spaces
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if(_line.startsWith('/**')) _line = _line.replaceAll('^\\/\\*\\*', '') // start comment
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if(_line.startsWith('*/') || _line.trim().endsWith('*/')) _line = _line.replaceAll('^\\*/', '').replaceAll('\\*/\\s*$', '') // end comment
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if(_line.startsWith('*')) _line = _line.replaceAll('^\\*', '') // continue comment
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if(_line.startsWith(' ')) _line = _line.replaceAll('^\\s', '')
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if(_line ==~ /.*@possibleValues.*/) {
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mandatory = false // should be something like reset attributes
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value = true
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parentObject = false
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}
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// some remark for mandatory e.g. some parameters are only mandatory under certain conditions
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if(_line ==~ /.*@mandatory.*/) {
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value = false // should be something like reset attributes ...
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mandatory = true
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parentObject = false
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}
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// grouping config properties within a parent object for easier readability
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if(_line ==~ /.*@parentConfigKey.*/) {
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value = false // should be something like reset attributes ...
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mandatory = false
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parentObject = true
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}
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if(value) {
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if(_line) {
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_line = (_line =~ /.*@possibleValues\s*?(.*)/)[0][1]
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valueLines << _line
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}
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}
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if(mandatory) {
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if(_line) {
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_line = (_line =~ /.*@mandatory\s*?(.*)/)[0][1]
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mandatoryLines << _line
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}
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}
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if(parentObject) {
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if(_line) {
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_line = (_line =~ /.*@parentConfigKey\s*?(.*)/)[0][1]
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parentObjectLines << _line
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}
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}
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if(!value && !mandatory && !parentObject) {
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docuLines << _line
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}
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}
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if(docu && line.trim() ==~ /^.*\*\//) {
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docu = false
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value = false
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mandatory = false
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parentObject = false
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docuEnd = true
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}
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}
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}
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private static isHeader(line) {
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Matcher headerMatcher = (line =~ /(?:(?:def|void)\s*call\s*\()|(?:@.*)/ )
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return headerMatcher.size() == 1
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}
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private static retrieveParameterName(line) {
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Matcher m = (line =~ /.*'(.*)'.*/)
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if(m.size() == 1 && m[0].size() == 2)
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return m[0][1]
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return null
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}
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static getScopedParameters(def script) {
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def params = [:]
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params.put('STEP_CONFIG', script.STEP_CONFIG_KEYS ?: [])
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params.put('GENERAL_CONFIG', script.GENERAL_CONFIG_KEYS ?: [] )
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params.put('STAGE_CONFIG', script.PARAMETER_KEYS ?: [] )
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return params
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}
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static getRequiredParameters(File f) {
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def params = [] as Set
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f.eachLine {
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line ->
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if (line ==~ /.*withMandatoryProperty.*/) {
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def param = (line =~ /.*withMandatoryProperty\('(.*)'/)[0][1]
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params << param
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}
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}
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return params
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}
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static getParentObjectMappings(File f) {
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def mappings = [:]
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def parentObjectKey = ''
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f.eachLine {
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line ->
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if (line ==~ /.*parentConfigKey.*/ && !parentObjectKey) {
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def param = (line =~ /.*parentConfigKey\s*?(.*)/)[0][1]
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parentObjectKey = param.trim()
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} else if (line ==~ /\s*?(.*)[,]{0,1}/ && parentObjectKey) {
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def pName = retrieveParameterName(line)
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if(pName) {
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mappings.put(pName, parentObjectKey)
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parentObjectKey = ''
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}
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}
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}
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return mappings
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}
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static resolveDocuRelevantSteps(GroovyScriptEngine gse, File stepsDir) {
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def docuRelevantSteps = []
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stepsDir.traverse(type: FileType.FILES, maxDepth: 0) {
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if(it.getName().endsWith('.groovy')) {
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def scriptName = (it =~ /vars\${File.separator}(.*)\.groovy/)[0][1]
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def stepScript = gse.createScript("${scriptName}.groovy", new Binding())
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for (def method in stepScript.getClass().getMethods()) {
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if(method.getName() == 'call' && method.getAnnotation(GenerateDocumentation) != null) {
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docuRelevantSteps << scriptName
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break
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}
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}
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}
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}
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docuRelevantSteps
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}
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}
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roots = [
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new File(Helper.projectRoot, "vars").getAbsolutePath(),
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new File(Helper.projectRoot, "src").getAbsolutePath()
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]
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stepsDir = null
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stepsDocuDir = null
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String customDefaults = null
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steps = []
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//
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// assign parameters
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if(args.length >= 1)
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stepsDir = new File(args[0])
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stepsDir = stepsDir ?: new File(Helper.projectRoot, "vars")
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if(args.length >= 2)
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stepsDocuDir = new File(args[1])
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stepsDocuDir = stepsDocuDir ?: new File(Helper.projectRoot, "documentation/docs/steps")
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def argsDrop = 2
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if(args.length >= 3 && args[2].contains('.yml')) {
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customDefaults = args[2]
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argsDrop ++
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}
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if(args.length >= 3)
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steps = (args as List).drop(argsDrop) // the first two entries are stepsDir and docuDir
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// the other parts are considered as step names
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// assign parameters
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//
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//
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// sanity checks
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if( !stepsDocuDir.exists() ) {
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System.err << "Steps docu dir '${stepsDocuDir}' does not exist.\n"
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System.exit(1)
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}
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if( !stepsDir.exists() ) {
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System.err << "Steps dir '${stepsDir}' does not exist.\n"
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System.exit(1)
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}
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// sanity checks
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//
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def gse = new GroovyScriptEngine([ stepsDir.getAbsolutePath() ] as String[], GenerateDocumentation.class.getClassLoader() )
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//
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// find all the steps we have to document (if no step has been provided from outside)
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if( ! steps) {
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steps = Helper.resolveDocuRelevantSteps(gse, stepsDir)
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} else {
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System.err << "[INFO] Generating docu only for step ${steps.size > 1 ? 's' : ''} ${steps}.\n"
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}
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def prepareDefaultValuesStep = Helper.getPrepareDefaultValuesStep(gse)
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boolean exceptionCaught = false
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def stepDescriptors = [:]
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for (step in steps) {
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try {
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stepDescriptors."${step}" = handleStep(step, prepareDefaultValuesStep, gse, customDefaults)
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} catch(Exception e) {
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exceptionCaught = true
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System.err << "${e.getClass().getName()} caught while handling step '${step}': ${e.getMessage()}.\n"
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}
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}
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// replace @see tag in docu by docu from referenced step.
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for(step in stepDescriptors) {
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if(step.value.parameters) {
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for(param in step.value.parameters) {
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if( param?.value?.docu?.contains('@see')) {
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def otherStep = param.value.docu.replaceAll('@see', '').trim()
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param.value.docu = fetchTextFrom(otherStep, param.key, stepDescriptors)
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param.value.mandatory = fetchMandatoryFrom(otherStep, param.key, stepDescriptors)
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if(! param.value.value)
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param.value.value = fetchPossibleValuesFrom(otherStep, param.key, stepDescriptors)
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}
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}
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}
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}
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for(step in stepDescriptors) {
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try {
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renderStep(step.key, step.value)
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System.err << "[INFO] Step '${step.key}' has been rendered.\n"
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} catch(Exception e) {
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exceptionCaught = true
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System.err << "${e.getClass().getName()} caught while rendering step '${step}': ${e.getMessage()}.\n"
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}
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}
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if(exceptionCaught) {
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System.err << "[ERROR] Exception caught during generating documentation. Check earlier log for details.\n"
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System.exit(1)
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}
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File docuMetaData = new File('target/docuMetaData.json')
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if(docuMetaData.exists()) docuMetaData.delete()
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docuMetaData << new JsonOutput().toJson(stepDescriptors)
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System.err << "[INFO] done.\n"
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void renderStep(stepName, stepProperties) {
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File theStepDocu = new File(stepsDocuDir, "${stepName}.md")
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if(!theStepDocu.exists()) {
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System.err << "[WARNING] step docu input file for step '${stepName}' is missing.\n"
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return
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}
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def binding = [
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docGenStepName : stepName,
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docGenDescription : 'Description\n\n' + stepProperties.description,
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docGenParameters : 'Parameters\n\n' + TemplateHelper.createParametersSection(stepProperties.parameters),
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docGenConfiguration : 'Step configuration\n\n' + TemplateHelper.createStepConfigurationSection(stepProperties.parameters),
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docDependencies : 'Dependencies (beta)\n\n' + TemplateHelper.createDependencyList(stepProperties.dependencies)
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]
|
|
|
|
def template = new StreamingTemplateEngine().createTemplate(theStepDocu.text)
|
|
String text = template.make(binding)
|
|
|
|
theStepDocu.withWriter { w -> w.write text }
|
|
}
|
|
|
|
def fetchTextFrom(def step, def parameterName, def steps) {
|
|
try {
|
|
def docuFromOtherStep = steps[step]?.parameters[parameterName]?.docu
|
|
if(! docuFromOtherStep) throw new IllegalStateException("No docu found for parameter '${parameterName}' in step ${step}.")
|
|
return docuFromOtherStep
|
|
} catch(e) {
|
|
System.err << "[ERROR] Cannot retrieve docu for parameter ${parameterName} from step ${step}.\n"
|
|
throw e
|
|
}
|
|
}
|
|
|
|
def fetchMandatoryFrom(def step, def parameterName, def steps) {
|
|
try {
|
|
return steps[step]?.parameters[parameterName]?.mandatory
|
|
} catch(e) {
|
|
System.err << "[ERROR] Cannot retrieve docu for parameter ${parameterName} from step ${step}.\n"
|
|
throw e
|
|
}
|
|
}
|
|
|
|
def fetchPossibleValuesFrom(def step, def parameterName, def steps) {
|
|
return steps[step]?.parameters[parameterName]?.value ?: ''
|
|
}
|
|
|
|
def handleStep(stepName, prepareDefaultValuesStep, gse, customDefaults) {
|
|
|
|
File theStep = new File(stepsDir, "${stepName}.groovy")
|
|
File theStepDocu = new File(stepsDocuDir, "${stepName}.md")
|
|
File theStepDeps = new File('documentation/jenkins_workspace/plugin_mapping.json')
|
|
|
|
if(!theStepDocu.exists()) {
|
|
System.err << "[WARNING] step docu input file for step '${stepName}' is missing.\n"
|
|
return
|
|
}
|
|
|
|
System.err << "[INFO] Handling step '${stepName}'.\n"
|
|
|
|
Map prepareDefaultValuesStepParams = [:]
|
|
if (customDefaults)
|
|
prepareDefaultValuesStepParams.customDefaults = customDefaults
|
|
|
|
def defaultConfig = Helper.getConfigHelper(getClass().getClassLoader(),
|
|
roots,
|
|
Helper.getDummyScript(prepareDefaultValuesStep, stepName, prepareDefaultValuesStepParams)).use()
|
|
|
|
def params = [] as Set
|
|
|
|
//
|
|
// scopedParameters is a map containing the scope as key and the parameters
|
|
// defined with that scope as a set of strings.
|
|
|
|
def scopedParameters
|
|
|
|
try {
|
|
scopedParameters = Helper.getScopedParameters(gse.createScript( "${stepName}.groovy", new Binding() ))
|
|
scopedParameters.each { k, v -> params.addAll(v) }
|
|
} catch(Exception e) {
|
|
System.err << "[ERROR] Step '${stepName}' violates naming convention for scoped parameters: ${e}.\n"
|
|
throw e
|
|
}
|
|
def requiredParameters = Helper.getRequiredParameters(theStep)
|
|
|
|
params.addAll(requiredParameters)
|
|
|
|
// translate parameter names according to compatibility annotations
|
|
def parentObjectMappings = Helper.getParentObjectMappings(theStep)
|
|
def compatibleParams = [] as Set
|
|
if(parentObjectMappings) {
|
|
params.each {
|
|
if (parentObjectMappings[it])
|
|
compatibleParams.add(parentObjectMappings[it] + '/' + it)
|
|
else
|
|
compatibleParams.add(it)
|
|
}
|
|
if (compatibleParams)
|
|
params = compatibleParams
|
|
}
|
|
|
|
// 'dependentConfig' is only present here for internal reasons and that entry is removed at
|
|
// end of method.
|
|
def step = [
|
|
parameters:[:],
|
|
dependencies: (Set)[],
|
|
dependentConfig: [:]
|
|
]
|
|
|
|
//
|
|
// provide dependencies to Jenkins plugins
|
|
if(theStepDeps.exists()) {
|
|
def deps = new JsonSlurper().parse(theStepDeps)
|
|
step.dependencies.addAll(deps[stepName].collect { k, v -> k })
|
|
def _deps = deps[stepName].collect { k, v -> k }
|
|
}
|
|
|
|
//
|
|
// START special handling for 'script' parameter
|
|
// ... would be better if there is no special handling required ...
|
|
|
|
step.parameters['script'] = [
|
|
docu: 'The common script environment of the Jenkinsfile running. ' +
|
|
'Typically the reference to the script calling the pipeline ' +
|
|
'step is provided with the this parameter, as in `script: this`. ' +
|
|
'This allows the function to access the ' +
|
|
'commonPipelineEnvironment for retrieving, for example, configuration parameters.',
|
|
required: true,
|
|
|
|
GENERAL_CONFIG: false,
|
|
STEP_CONFIG: false
|
|
]
|
|
|
|
// END special handling for 'script' parameter
|
|
|
|
Helper.normalize(params).toSorted().each {
|
|
|
|
it ->
|
|
|
|
def defaultValue = MapUtils.getByPath(defaultConfig, it)
|
|
|
|
def parameterProperties = [
|
|
defaultValue: defaultValue,
|
|
required: requiredParameters.contains((it as String)) && defaultValue == null
|
|
]
|
|
|
|
step.parameters.put(it, parameterProperties)
|
|
|
|
// The scope is only defined for the first level of a hierarchical configuration.
|
|
// If the first part is found, all nested parameters are allowed with that scope.
|
|
def firstPart = it.split('/').head()
|
|
scopedParameters.each { key, val ->
|
|
parameterProperties.put(key, val.contains(firstPart))
|
|
}
|
|
}
|
|
|
|
Helper.scanDocu(theStep, step)
|
|
|
|
step.parameters.each { k, v ->
|
|
if(step.dependentConfig.get(k)) {
|
|
|
|
def dependentParameterKey = step.dependentConfig.get(k)[0]
|
|
def dependentValues = step.parameters.get(dependentParameterKey)?.value
|
|
|
|
if (dependentValues) {
|
|
def the_defaults = []
|
|
dependentValues
|
|
.replaceAll('[\'"` ]', '')
|
|
.split(',').each {possibleValue ->
|
|
if (!possibleValue instanceof Boolean && defaultConfig.get(possibleValue)) {
|
|
the_defaults <<
|
|
[
|
|
dependentParameterKey: dependentParameterKey,
|
|
key: possibleValue,
|
|
value: MapUtils.getByPath(defaultConfig.get(possibleValue), k)
|
|
]
|
|
}
|
|
}
|
|
v.defaultValue = the_defaults
|
|
}
|
|
}
|
|
}
|
|
|
|
//
|
|
// 'dependentConfig' is only present for internal purposes and must not be used outside.
|
|
step.remove('dependentConfig')
|
|
|
|
step
|
|
}
|