Writing to a json file in workspace using Jenkins

Question

I\'ve a jenkins job with few parameters setup and I\'ve a JSON file in the workspace which has to be updated with the parameters that I pass through jenkins.

Example

Answer 1

With Pipeline Utility Steps plugin this is very easy to achieve.

    jsonfile = readJSON file: 'path/to/your.json'
    jsonfile['environment'] = 'ENV2'
    writeJSON file: 'path/to/your.json', json: jsonfile

Answer 2

Config File Provider Plugin doesn't allow you to pass parameters to configuration files. You can solve your problem with any scripting language. My favorite approach is using Groovy plugin. Hit a check-box "Execute system Groovy script" and paste the following script:

import groovy.json.*

// read build parameters
env = build.getEnvironment(listener)
environment = env.get('environment')
filename = env.get('filename')

// prepare json
def builder = new JsonBuilder()
builder environment: environment, filename: filename
json = builder.toPrettyString()

// print to console and write to a file
println json
new File(build.workspace.toString() + "\\job.json").write(json)

Output sample:

{
    "environment": "ENV2",
    "filename": "abc.txt"
}

Answer 3

I will keep it simple. A windows batch file or a shell script (depending on the OS) which will read the environment values and open the JSON file and make the changes.