"mvdan.cc/sh/v3: no Go source files" on go get

[zikaeroh]

I did an update in a project that uses this module; my handy update script just requests each directly required module @latest. The recent addition of a package at the top level without any buildable files (since the one file is guarded by a build tag) makes go get unhappy:

$ go get -d mvdan.cc/sh/v3@latest              
mvdan.cc/sh/v3: no Go source files

Does the root directory need an unguarded file to ensure that the package is buildable, or maybe have its code moved to some other directory?

[mvdan]

You're right, and I can reproduce on 1.16.4. This seems to be golang/go#33526, which in theory did get fixed in 1.16.x, but I still see the error. I left a comment there.

It seems like this bug is fixed on Go master as of go version devel go1.17-ce92a2023c Sat May 15 02:39:08 2021 +0000 linux/amd64, as I can no longer reproduce. But I'll add a workaround since 1.15.x and 1.16.x might suffer from this bug for a while still.