`//+build ignore` tags not taken into consideration

[mewmew]

This issue may be difficult to reproduce, however I'll try to describe the observed behaviour of goggles.

The ir package of llir/llvm uses go generate to run the gen.go source file, to generating the source code of binary and bitwise instruction data representations.

When viewing the documentation for llir/llvm/ir the documentation of package ir is sometimes displayed, and sometimes, the documentation of package main is displayed.

Note, that gen.go contains a //+build ignore tag, which I think is what makes godoc skip this file when generating documentation. As a user of goggles, I would expect these kind of files to be ignored, so that the relevant documentation is displayed.

It may be worth taking a look at, and potentially using the go/build package which provides native support for handling build tags (along with support for dealing with multiple GOPATHs).

[KyleBanks]

Wow, this is another good find. Goggles already uses go/build actually so I'm a little surprised this isn't already handled, but I'll dig into it some more and see if there's anything I may have missed in the docs.

[KyleBanks]

Actually that's not true - Goggles uses KyleBanks/depth which uses go/build so I may have to make the change over there.

[KyleBanks]

Resolved by c080d80ef179b30eeda405c9b7726535e40c8027