Gradle incrementality/task dependency example

build.gradle

task C {
  doLast {
    println("Do C")
  }
}

task A(dependsOn: C) {
  doLast {
    println("Do A")
  }
}

task B(dependsOn: C) {
  doLast {
    println("Do B")
  }
}

output.txt

> gradle :A :B --info

> Task :C
Task ':C' is not up-to-date because:
  Task has not declared any outputs despite executing actions.
Custom actions are attached to task ':C'.
Do C
:C (Thread[Execution worker for ':',5,main]) completed. Took 0.008 secs.
:A (Thread[Execution worker for ':',5,main]) started.

> Task :A
Task ':A' is not up-to-date because:
  Task has not declared any outputs despite executing actions.
Custom actions are attached to task ':A'.
Do A
:A (Thread[Execution worker for ':',5,main]) completed. Took 0.001 secs.
:B (Thread[Execution worker for ':',5,main]) started.

> Task :B
Task ':B' is not up-to-date because:
  Task has not declared any outputs despite executing actions.
Custom actions are attached to task ':B'.
Do B
:B (Thread[Execution worker for ':',5,main]) completed. Took 0.001 secs.

BUILD SUCCESSFUL in 0s
3 actionable tasks: 3 executed