BuildOptions.BuildScriptsOnly not working?

Hi,

when recently updating our build dialogs I saw the (new?) BuildOptions value "BuildScriptsOnly". As the name suggests that this would only recompile the scripts and thus speed up our building a lot I tried to use it. So the call now looks like this:

Code (csharp):

1. BuildPipeline.BuildPlayer(scenes, @"BuildOutputPath", BuildTarget.StandaloneWindows64, BuildOptions.BuildScriptsOnly);

BuildOutputPath pointing to the path that I normally use to build a player. But no matter if that path is empty/nonexistent or if there is a previous full build Unity prints this to the console and aborts:

So, is this something wrong on our end or does this simply not work?

Such a feature would be highly welcome, as building a hole player for 5-10 minutes just for a script change is mostly overkill. Always wanted this to be possible

Regards,
Chris

 

No one? UnityTech?

 

Judging from "views" count it looks like we're not the only ones interested in this issue ...

 

I would like to know as well. Waiting for entire scenes to be rebuilt over and over is a huge waste of time (and money).

 

I'm building for Android using Unity 5.1.2p1 and don't get that error message with the build actually being created properly. However it takes just as long as not specifying that option, so it seems like it does nothing :-(

 

I looked into this a bit, as I could not find any documentation. If you go poking around in UnityEditor.WindowsStandallone.Extensionsions.dll you can see it isn't supported in Windows standalone builds.

 

Oh, and same goes for Android. Not supported... Not sure what platform(s) are supported.

 

@jgilbert where did you find this is not supported ? what classes were you peeking into ?

I am interested in this functionality as well.

 

For the record, Unity 2017.1 now officially supports this option, including a toggle in the BuildSettings window.

 

Only for "development" builds

 

On iOS, we had to perform an extra step during the build process. Unity blows away the Data/Raw folder underneath the iOS build, which is also where we were storing Bundles built during a full build. We copied the folder to a temp location, built only scripts, and then copied it back and script only builds appear to work fine now.

 

Does not work for me in 2018.1 or 2018.2 even with an empty project with one script. Reported as 1031322.

 

https://docs.unity3d.com/ScriptReference/BuildOptions.BuildScriptsOnly.html
Before you can use BuildScriptsOnly, you need to build the whole Project. Then you can run builds that only have script changes.