tree 854ed9bd5713f62f9e028b665ede15ceb00ccb1c
parent 3e4ec9f15beaa4a3cbddb9c805b581c33e1199c4
author Baokun Lee <nototon@gmail.com> 1528269510 +0800
committer Russ Cox <rsc@golang.org> 1528987535 +0000

cmd/go/internal/vgo: vendor testdata from parent directories of copied packages

We should keep all the testdata directories in parent directories
of copied packages. And we should also avoid re-copying directories
already copied.

If the package being vendored is a/b/c, try to copy a/b/c/testdata,
a/b/testdata and a/testdata to vendor directory, up to the module
root.

Fixes golang/go#23997

Change-Id: If3a2ab9e4bcce80acc978caf569a4aa33219fd62
Reviewed-on: https://go-review.googlesource.com/116575
Run-TryBot: Russ Cox <rsc@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Russ Cox <rsc@golang.org>