diff options
Diffstat (limited to 'src/cmd/go/internal/modload/load.go')
| -rw-r--r-- | src/cmd/go/internal/modload/load.go | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/src/cmd/go/internal/modload/load.go b/src/cmd/go/internal/modload/load.go index e5ea1a6c238..0dea6ee636b 100644 --- a/src/cmd/go/internal/modload/load.go +++ b/src/cmd/go/internal/modload/load.go @@ -24,7 +24,9 @@ import ( "sort" "strings" + "golang.org/x/mod/modfile" "golang.org/x/mod/module" + "golang.org/x/mod/semver" ) // buildList is the list of modules to use for building packages. @@ -478,6 +480,31 @@ func SetBuildList(list []module.Version) { buildList = append([]module.Version{}, list...) } +// CheckTidyVersion reports an error to stderr if the Go version indicated by +// the go.mod file is not supported by this version of the 'go' command. +// +// If allowError is false, such an error terminates the program. +func CheckTidyVersion() { + InitMod() + mf := ModFile() + if mf.Go == nil || mf.Go.Version == "" { + return + } + goVersionV := "v" + mf.Go.Version + + tags := build.Default.ReleaseTags + maxGo := tags[len(tags)-1] + if !strings.HasPrefix(maxGo, "go") || !modfile.GoVersionRE.MatchString(maxGo[2:]) { + base.Fatalf("go: unrecognized go version %q", maxGo) + } + max := maxGo[2:] + + if semver.Compare(goVersionV, "v"+max) > 0 { + have := goVersionV[1:] + base.Fatalf("go mod tidy: go.mod file indicates go %s, but maximum supported version is %s\n", have, max) + } +} + // TidyBuildList trims the build list to the minimal requirements needed to // retain the same versions of all packages from the preceding Load* or // ImportPaths* call. |