tree 61af41c81fbcb909fe4ffdf108a1e8fa07b44570
parent 597f57769402f90a9c238d64701717ff5fe472d6
author Michael Matloob <matloob@golang.org> 1565731998 -0400
committer Michael Matloob <matloob@golang.org> 1565803176 +0000

go/packages: set -mod=readonly when processing overlays in module mode

To prevent us from adding additional module dependencies to modules, especially
if the file is in a different module. Sometimes adding additional dependencies
would be the right behavior, but sometimes we run go list to determine
information about files in other modules, and modifying modules outside the one
the user is operating in is bad  behavior.

Fixes golang/go#32499

Change-Id: I2a12e0a64dc6cd34fa98931cbacc30707e5ba494
Reviewed-on: https://go-review.googlesource.com/c/tools/+/190179
Run-TryBot: Michael Matloob <matloob@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>