[英]How to call a value of a variable whose name is passed as text to another variable?
[英]Groovy - Define variable where the variable name is passed by another variable
我想在 groovy 中定義一個變量,其中變量名由另一個變量傳遞。
就像是。
def runExtFunc(varName){
def varName // => def abc
varName = load 'someFile.groovy' // abc = load 'someFile.groovy'
varName."$varName"() // -> abc.abc() (run function defined in File)
}
[...]
runExtFunc('abc') // -> abc.abc() (Function abc defined in File)
[...]
runExtFunc('xyz') // -> xyz.xyz() (Function xyz defined in File)
[...]
可悲的是 def varName 定義了變量 varName 而不是 abc。 當我兩次調用 runExtFunc 時,會發生錯誤,因為 varName 已經定義。
我也試過
def runExtFunc(varName){
def "${varName}" // => def abc
[...]
"${varName}" = load 'someFile.groovy'
[...]
}
這也不起作用。
有什么建議?
嘗試以下操作(如果我對您的理解正確):
def dummyFunc(varName) {
new GroovyShell(this.binding).evaluate("${varName}")
}
dummyFunc('abc')
abc = "Hello there"
println abc
版畫
Hello there
請參閱此處https://godless-internets.org/2020/02/14/extracting-jenkins-credentials-for-use-in-another-place/
secret_var="SECRET_VALUE_${secret_index}" aws ssm put-parameter --name ${param_arn} --type "SecureString" --value ${!secret_var} --region us-east-2 --overwrite
我在這里輸入我們已經完成的代碼示例。
請隨意發表評論。
http://groovy-lang.org/syntax.html https://godless-internets.org/2020/02/14/extracting-jenkins-credentials-for-use-in-another-place/
def int fileContentReplaceDynamic(String filePathVar, String envTail = "",
String [] keysToIgnore = new String[0]){
def filePath = readFile filePathVar
def lines = filePath.readLines()
//def regex = ~/\b__\w*\b/
String regex = "__(.*?)__"
ArrayList credentialsList = new ArrayList();
ArrayList<String> keysToIgnoreList = new ArrayList<String>(Arrays.asList(keysToIgnore));
for (line in lines){
Pattern pattern = Pattern.compile(regex, Pattern.CASE_INSENSITIVE)
Matcher matcher = pattern.matcher(line)
while (matcher.find()){
String credKeyName = matcher.group().replaceAll("__","")
if ((! credentialsList.contains(credKeyName)) &&
(! keysToIgnoreList.contains(credKeyName))) {
credentialsList.add(credKeyName)
} else {
log.info("Credencial ignorada o ya incluida: ${credKeyName}")
}
}
}
if(credentialsList.size() <= 0){
log.info("No hay variables para aplicar transformada")
return 0
}
log.info("Numero de credenciales encontradas a sustituir: " + credentialsList.size())
String credentialsListString = String.join(", ", credentialsList);
log.info("Credenciales: " + credentialsListString)
def credsRequest = null
for(def credKeyName in credentialsList){
// Retrieve the values of the variables by environment tail name.
String credKeyNameByEnv = "${credKeyName}";
if ((envTail != null) && (! envTail.trim().isEmpty())) {
credKeyNameByEnv = credKeyNameByEnv + "-" + envTail.trim().toUpperCase();
}
// Now define the name of the variable we'll use
// List<org.jenkinsci.plugins.credentialsbinding.MultiBinding>
// Tip: java.lang.ClassCastException:
// org.jenkinsci.plugins.credentialsbinding.impl.BindingStep.bindings
// expects class org.jenkinsci.plugins.credentialsbinding.MultiBinding
String varName = "var_${credKeyNameByEnv}"
if (credsRequest == null) {
// Initialize
credsRequest = [string(credentialsId: "${credKeyNameByEnv}", variable: "${varName}")]
} else {
// Add element
credsRequest << string(credentialsId: "${credKeyNameByEnv}", variable: "${varName}")
}
}
int credsProcessed = 0
def passwordsRequest = null
StringBuilder sedReplacements = new StringBuilder();
// Now ask jenkins to fill in all variables with values
withCredentials(credsRequest) {
for(def credKeyName in credentialsList){
String credKeyVar = "var_${credKeyName}"
log.info("Replacing value for credential ${credKeyName} stored in ${credKeyVar}")
String credKeyValueIn = "${!credKeyVar}"
String credKeyValue = null;
if ("empty_string_value".equals(credKeyValueIn.trim())) {
credKeyValue = "";
} else {
credKeyValue = credKeyValueIn.replaceAll(/(!|"|@|#|\$|%|&|\/|\(|\)|=|\?)/, /\\$0/)
}
if (passwordsRequest == null) {
// Initialize
passwordsRequest = [[password: "${credKeyValue}" ]]
} else {
// Add element
passwordsRequest << [password: "${credKeyValue}" ]
}
sedReplacements.append("s/__${credKeyName}__/${credKeyValue}/; ")
credsProcessed++
}
}
wrap([$class: "MaskPasswordsBuildWrapper", varPasswordPairs: passwordsRequest ]){
String sedReplacementsString = sedReplacements.toString().trim();
if (sedReplacementsString.endsWith(";")) {
sedReplacementsString = sedReplacementsString.substring(0, sedReplacementsString.length() -1);
sedReplacementsString = sedReplacementsString + "g;"
}
sh """sed -i "${sedReplacementsString}" ${filePathVar}"""
}
log.info("Finaliza la transformada. Transformados: ${credsProcessed}/${credentialsList.size()} ")
if (credsProcessed != credentialsList.size()) {
log.info("Hay credenciales que no se han podido encontrar en el vault de Jenkins.")
log.info("Si estas guardando cadenas vacias en credenciales, guarda en su lugar el valor 'empty_string_value'.");
return -1
}
return 0;
}
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