How to move code from gradle task configuration step to task execution

Question

I have gradle task:

task immportMyData(type: Exec) {
def dumnp= ""

new File("${System.env.MY_HOME}/export").eachDir() { dir ->
    dumpName = dir.getName()
}

workingDir "${System.env.MY_HOME}/../test"
standardOutput = new ByteArrayOutputStream()

 ext.output = {
    return standardOutput.toString()
 } 
}

...

As I understand its task configuration, because its executed every time.

So, is there any way how to move code from conflagration step to task body (execution step) ? Some thinks like this.

task immportMyData(type: Exec) << {
   //code from configuration
}

another worlds 

   task immportMyData(type: Exec) **<<** {
def dumnp= ""

new File("${System.env.MY_HOME}/export").eachDir() { dir ->
    dumpName = dir.getName()
}

workingDir "${System.env.MY_HOME}/../test"
standardOutput = new ByteArrayOutputStream()

 ext.output = {
    return standardOutput.toString()
 } 
}

I've checked gradle docs, but no luck

What exactly you'd like to move? It seems that the task is configured well. — Opal, Jul 13 '16 at 08:18
Yeap its works, but i don't want to execute its every time. So I want to move it to task. Something like this: http://pastebin.com/raw/iuvTStCK — Java Dude, Jul 13 '16 at 08:24
It won't work that way. Configuration is done every time, however the task is run only once. — Opal, Jul 13 '16 at 08:32
Putting your code inside brackets of << {} should do the trick - << is the same as doLast, i.e. it defines action that should be executed the last during task execution. However, I don't see why do you need Exec task type. — Andrei LED, Jul 13 '16 at 22:44

score 1 · Answer 1 · answered Apr 28 '17 at 10:03

I think you may have misunderstood what the Exec task does. Exec is for running an external command, i.e. another process. As such, it needs you to specify its commandLine property in order for it to do anything at execution time. See here for more info.

It looks like what you're actually trying to do is "run some code during task execution", which can be achieved using a regular (non-Exec) task. Something like this:

task importMyData {
    //Code to configure task

    doLast {
        //Code to run at execution time, maybe this?:
        new File("${System.env.MY_HOME}/export").eachDir() { dir ->
            ext.dump = dir.getName()
        }
    }
}

Hope this helps.

How to move code from gradle task configuration step to task execution

1 Answers1