tree 580139f36c84bb24a08f7705ccacce62db87c95d
parent bfb5194568d3c40db30de765edc44cae9fc94671
author Michael Matloob <matloob@golang.org> 1532551223 -0400
committer Michael Matloob <matloob@golang.org> 1532720540 +0000

go/packages: add support for 'contains:' words

If a 'word' provided to go/packages' Load function starts with contains,
go/packages will interpret that word as the package containing the given
file.

For example:
   packages.Load(config, "contains:/usr/local/go/src/fmt/format.go")
would load the fmt package from the Go installation at /usr/local/go.

This implementation uses "go list ." in the directory the file is
contained in to find the package, but this won't work in the module
cache. We plan to add support to go list directly to help find the
containing package. Then, because we won't need to change directory,
go list will have knowledge of the correct vgo root module, and will
be able to surface correct results.

Change-Id: I6bff62447c12f13dae5e4c0c65f729d9f271c388
Reviewed-on: https://go-review.googlesource.com/126177
Run-TryBot: Michael Matloob <matloob@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Cottrell <iancottrell@google.com>