How I pass params from Jenkins to Gradle

Help/Discuss
1

Hello,
I need to pass a params from Jenkins to Gradle (build with params). I have a String and I need to use this String params to make my release ?

2

If you use the Gradle Jenkins plugin, Jenkins build parameter are passed to Gradle as System properties.

(This can be seen in the build log : your build parameter is passed to gradle thanks to -D… on the command line launching gradle)

Therefore, if you have a Jenkins Build parameter FOO, you can access it in your Gradle builds with
System.getProperty(‘FOO’)

Beware that if your Build parameter is not a string but a boolean value, you will retrieve it as a string
System.getProperty(‘BOOLEAN_PARAM’) returns ‘true’ or ‘false’
You can then convert it to a boolean (if needed) with the toBoolean() method.

Small tip:
Declare aGradle property for the Systen properties map if you need to access to several properties.

build.gradle:
ext.systemProperties= System.properties
println “System property FOO is ${systemProperties.FOO}”

1 Like
3

Thanks you… working…
Now I need to know how I replace a config files in zip files.
Example :
By default, I have a config.xml file in my project at folder config/config.xml then , form Jenkins I will upload a zip file configuration.zip that contains config.xml … So from gradle I need to unzip configuration.zip and replace the config.xml from unzip folder to the default config.xml …

Any help ?

4

Here is a topic explaining how to unzip with Gradle

and after you can perform a copy to replace your xml file

You also have the Gradle Zip task to rebuild your zip if needed
https://docs.gradle.org/current/dsl/org.gradle.api.tasks.bundling.Zip.html

5

To spice it up nicely

project.copy {
  from zipTree('/path/to/zip') {
    exclude 'path/to/config.xml'
  }
  from '/folder/your/default/condig/is' {
    include 'config.xml'
  }
  into '/path/to/dest/folder'  
}

I used project.copy, but dependeing on your situation a Copy task must be better. Syntax should be the same.

6

Hi ,
Thank you for your reply,
I have try with this code

but it is not working when I excute my task from ANdroid Studio

7

If you keep the include portion, only the matching elements will be copied. That’s probably not what you want. You have to remove it or adapt it for your needs. I only wrote an example.

8

Thank you …

it is working :
task unzip(type: Copy) {
from zipTree(‘C:/Users/dell/Desktop/Config/configuration_tabs.zip’)

into 'src/main/res/xml/'

println 'Unzip configuration files...'
}

Now, I need to upload this file from Jenkins as file params then unzip it into the folder 'src/main/res/xml’
how I can upload a file ? Any help ?

9

well its not obvious, but you can just add parameter behind your task. buildController -Dmode=saas. works for me, but I didnt tested -P yet.