tree 9ec7363d9d032758aa94ed3d08c9f44a78f3ae8e
parent 0ce674985b4c864495dfc7ea144ca7c55e477441
author Russ Cox <rsc@golang.org> 1529331001 -0400
committer Russ Cox <rsc@golang.org> 1529685544 +0000

cmd/go/internal/get: export RepoRootForImportPath for use by modfetch

Because we've decided to keep support for the old meta tags
and hosting repository special cases, it makes sense for
package modfetch to import package get to translate an
import path to the enclosing repository root.

This CL exports RepoRootForImportPath from package get
for use in package modfetch. It also adjusts the import graph
to make it possible for modfetch to import get.
Before this CL, the graph has get -> load -> vgo -> modfetch,
so modfetch cannot import get. This CL reverses the load -> vgo
so that vgo is once again a higher-level package, and then
there's no problem with modfetch importing get.
Eventually some of the details currently isolated to package vgo
will move out to the packages that need them, and then we
won't have these awkward func values being set during
initialization.

This CL does not make modfetch import get; it only does the
preparation necessary to enable that.

Change-Id: I985964c40be3d3e7bd34be9d939c2fb8c76107fd
Reviewed-on: https://go-review.googlesource.com/119675
Run-TryBot: Russ Cox <rsc@golang.org>
Reviewed-by: Bryan C. Mills <bcmills@google.com>