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Don't use one mega-build. Use multiple stand-alone builds, that you then combine using composite build. Then you save much build time and also only get in the IDE what you are working on currently.

so.. for 2 apps, that means 3 builds? app1, app2, composite of app1+app2?

Not really. If you for example have

app1

,

app2

and

lib

where both

appX

use

lib

, you would have one build for

lib

, one composite build for

app1

that includes the build for

lib

and one composite build for

app2

that also includes the build for

lib

.

well, my n1 benefit in the single build is that I can find usages across everything and being able to build everything easily if broke anything (me as the

lib

developer) -- if I were to rename a lib function, how would I do that? only way to have a composite build of all?

well, my n1 benefit in the single build is that I can find usages across everything

But that is exactly what you said you do not want. You said you only want to have in the IDE what you currently work on. Here you say you want everything in the IDE to find usages. You can hardly have both as they are contradictory. 😄

and being able to build everything easily if broke anything (me as the

lib

developer)

Well, you can of course have a composite build that then includes

app1

and

app2

to be able to build both with one Gradle invocation. And if you open that uber-composite build you also would have everything open and usable in the IDE, but can also just open

app1

to only have

app1

and its dependencies open.

anyways, as far as intellij goes, does each composite build behave as a separate project?

Depends on what you mean exactly. You can open a composite build as project, yes, and that will open all the included builds too in the IDE within that project as source roots.

Yea im contradicting my self 😄 but yes I want both, at times. A "platform" developer want to see everything. A "feature" developer wants to see a subset

Well then, yeah, make the uber composite build that includes all the apps and you should be able to pick accordingly by openting the relevant build.