Clean build output for regular builds

Problem

Currently, the build produces a confusing "BUILD FAILED" message for ordinary builds that skip release (full log):

[assertReleaseNeeded] :assertReleaseNeeded FAILED
[assertReleaseNeeded] 
[assertReleaseNeeded] FAILURE: Build failed with an exception.
[assertReleaseNeeded] 
[assertReleaseNeeded] * What went wrong:
[assertReleaseNeeded] Execution failed for task ':assertReleaseNeeded'.
[assertReleaseNeeded] >  Skipping release because publications are identical.
[assertReleaseNeeded] 
[assertReleaseNeeded] * Try:
[assertReleaseNeeded] Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output.
[assertReleaseNeeded] 
[assertReleaseNeeded] BUILD FAILED in 8s
[assertReleaseNeeded] 6 actionable tasks: 4 executed, 2 up-to-date
[assertReleaseNeeded]

When the build works on, the log file should not contain messages such as "BUILD FAILED".

Solution

Currently, ciPerformRelease task executes assertReleaseNeeded and stops further execution if the latter fails. Let's change is so that instead of using build failure as signal, we use a marker file as signal. Let's make the releaseNeeded task produce a marker file like "build/release-needed-marker.txt". Then, ciPerformRelease task would stop execution when the marker file is absent.

Marker file needs to be deleted first thing that releaseNeeded does.

Getting started

assertReleaseNeeded wiring to ciPerformRelease and use of stopExecution() method: https://github.com/mockito/shipkit/blob/b84221b03b8dd8b53daad05fa028f54fcdf978e5/subprojects/shipkit/src/main/groovy/org/shipkit/internal/gradle/release/CiReleasePlugin.java#L54

Implementing this feature would make the build logs much cleaner!!!

mockito / shipkit