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cmd/go: eliminate empty '()' when passing -mod=readonly explicitly to 'go list'

Discovered while investigating #37197.

Updates #33326
Updates #34822

Change-Id: I38b136a4ee762a580a554125066b9778491295f2
Reviewed-on: https://go-review.googlesource.com/c/go/+/219237
Run-TryBot: Bryan C. Mills <bcmills@google.com>
Reviewed-by: Michael Matloob <matloob@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
This commit is contained in:
Bryan C. Mills 2020-02-12 13:03:18 -05:00
parent 7385947825
commit 363bcd0068
2 changed files with 3 additions and 1 deletions

View File

@ -184,8 +184,9 @@ func Import(path string) (m module.Version, dir string, err error) {
if !pathIsStd {
if cfg.BuildModReason == "" {
queryErr = fmt.Errorf("import lookup disabled by -mod=%s", cfg.BuildMod)
} else {
queryErr = fmt.Errorf("import lookup disabled by -mod=%s\n\t(%s)", cfg.BuildMod, cfg.BuildModReason)
}
queryErr = fmt.Errorf("import lookup disabled by -mod=%s\n\t(%s)", cfg.BuildMod, cfg.BuildModReason)
}
return module.Version{}, "", &ImportMissingError{Path: path, QueryErr: queryErr}
}

View File

@ -7,6 +7,7 @@ go mod edit -fmt
cp go.mod go.mod.empty
! go list all
stderr '^can''t load package: x.go:2:8: cannot find module providing package rsc\.io/quote: import lookup disabled by -mod=readonly'
! stderr '\(\)' # If we don't have a reason for -mod=readonly, don't log an empty one.
cmp go.mod go.mod.empty
# -mod=readonly should be set implicitly if the go.mod file is read-only