cc @eliasnaur and @hyangah

What's the steps for reproducing the problem?

Just get the latest version of gomobile by go get golang.org/x/mobile/cmd/gomobile and gomobile init. Now try to run the command on a sample.go

I can't reproduce the problem. I made a trivial change to example/bind/hello/hello.go to avoid caching and ran

$ time gomobile bind golang.org/x/mobile/example/bind/hello

real	0m8,942s
user	0m7,954s
sys	0m2,384s

and it completed in under 10 seconds.

Note that because of the new cmd/go caching in Go 1.10 (and 1.11) the first gomobile bind probably takes quite a while.

Hey Elias,
First time when i ran it for example/bind/hello/hello.go, i got the following

 real	1m56.577s
 user	0m28.475s
 sys	0m11.957s

and the subsequent one showed this

 real	1m37.963s
 user	0m9.844s
 sys	0m7.439s

I don't know why, sorry. It's suspicious that real time is more than a minute yet so little time is spent in user and kernel mode.

Any progress on this? My main issue right now is that gomobile bind recompiles everyhting even if the go sources haven't changed, adding at least 10s to every build in android studio. A build cache / incremental builds would help tremendously in this case.

Unfortunately no. I'll happily take 10s. But its way more than that. My friend @arunkumar9t2 has done some incremental build solution prototype. Hope he can help!

I suppose someone has to profile gomobile and figure out an explanation for the discrepancy between my 10s and @vickyramachandra's 2m. The gomobile -x flag might be useful.

Also note that the gradle plugin is no longer supported, so a more clumsy but direct workaround is to manually run gomobile only when the Go code has changed.

@vickyramachandra - Just wanted to circle back and check in on this. Are you still facing this issue ? Could you try with gomobile built with 1.13 and let us know if there is any difference ?

Me and @vickyramachandra no longer work on the project, let me check with my peers to see if it has improved.

In the mean time, we built our own Gradle plugin to build go sources only when our sources have changed, this helped a lot in reducing build times when we were not editing go files.

Timed out in state WaitingForInfo. Closing.

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