tree 6ce1c5e4285edca44f61e1e2862d67e23dc4defe
parent 22ec9a1dc1b6a9aa70d05eba379389492094b1d7
author Daniel Theophanes <kardianos@gmail.com> 1529084975 -0700
committer Russ Cox <rsc@golang.org> 1529684674 +0000

cmd/go/internal/modfetch: check errors for if file does not exist

The Repo interface now calls out that for ReadFile if the error
reports that the requested file does not exist, then os.IsNotExist
should return true. Use this information when returning an
error message to the user.

This will help users diagnose errors quicker and more accuratly.

Extracted from https://golang.org/cl/114005

Change-Id: Ifb6122f0e8449c2b5bdad5af6bce1b038a3fe616
Reviewed-on: https://go-review.googlesource.com/119135
Reviewed-by: Russ Cox <rsc@golang.org>