Commit 509592d1 authored by Bryan C. Mills's avatar Bryan C. Mills

cmd/go: explicitly reject 'list -u' and 'list -versions' when '-mod=vendor' is set

The information requested by these flags is not available from the
vendor directory.

Noticed while diagnosing #36478.

Updates #33848

Change-Id: I2b181ba5c27f01fdd6277d8d0ab1003c05774ff7
Reviewed-on: https://go-review.googlesource.com/c/go/+/214081
Run-TryBot: Bryan C. Mills <bcmills@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: default avatarJay Conrod <jayconrod@google.com>
parent cec535b7
......@@ -390,15 +390,24 @@ func runList(cmd *base.Command, args []string) {
modload.InitMod() // Parses go.mod and sets cfg.BuildMod.
if cfg.BuildMod == "vendor" {
const actionDisabledFormat = "go list -m: can't %s using the vendor directory\n\t(Use -mod=mod or -mod=readonly to bypass.)"
if *listVersions {
base.Fatalf(actionDisabledFormat, "determine available versions")
}
if *listU {
base.Fatalf(actionDisabledFormat, "determine available upgrades")
}
for _, arg := range args {
// In vendor mode, the module graph is incomplete: it contains only the
// explicit module dependencies and the modules that supply packages in
// the import graph. Reject queries that imply more information than that.
if arg == "all" {
base.Fatalf("go list -m: can't compute 'all' using the vendor directory\n\t(Use -mod=mod or -mod=readonly to bypass.)")
base.Fatalf(actionDisabledFormat, "compute 'all'")
}
if strings.Contains(arg, "...") {
base.Fatalf("go list -m: can't match module patterns using the vendor directory\n\t(Use -mod=mod or -mod=readonly to bypass.)")
base.Fatalf(actionDisabledFormat, "match module patterns")
}
}
}
......
......@@ -38,6 +38,12 @@ stdout 'src[\\/]vendor[\\/]x'
go list -mod=vendor -f '{{.Version}} {{.Dir}}' -m x
stdout '^v1.0.0 $'
# -mod=vendor should cause 'go list' flags that look up versions to fail.
! go list -mod=vendor -versions -m x
stderr '^go list -m: can''t determine available versions using the vendor directory\n\t\(Use -mod=mod or -mod=readonly to bypass.\)$'
! go list -mod=vendor -u -m x
stderr '^go list -m: can''t determine available upgrades using the vendor directory\n\t\(Use -mod=mod or -mod=readonly to bypass.\)$'
# 'go list -mod=vendor -m' on a transitive dependency that does not
# provide vendored packages should give a helpful error rather than
# 'not a known dependency'.
......
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