goenv: improve Go version detection

First look at the VERSION file, only then look at
src/runtime/internal/sys/zversion.go. This makes it possible to
correctly detect the Go version for release candidates.
This commit is contained in:
Ayke van Laethem
2021-08-14 15:32:28 +02:00
committed by Ron Evans
parent 931f87f96a
commit ad73986070
+4 -4
View File
@@ -48,7 +48,10 @@ func GetGorootVersion(goroot string) (major, minor int, err error) {
// toolchain for the given GOROOT path. It is usually of the form `go1.x.y` but
// can have some variations (for beta releases, for example).
func GorootVersionString(goroot string) (string, error) {
if data, err := ioutil.ReadFile(filepath.Join(
if data, err := ioutil.ReadFile(filepath.Join(goroot, "VERSION")); err == nil {
return string(data), nil
} else if data, err := ioutil.ReadFile(filepath.Join(
goroot, "src", "runtime", "internal", "sys", "zversion.go")); err == nil {
r := regexp.MustCompile("const TheVersion = `(.*)`")
@@ -59,9 +62,6 @@ func GorootVersionString(goroot string) (string, error) {
return string(matches[1]), nil
} else if data, err := ioutil.ReadFile(filepath.Join(goroot, "VERSION")); err == nil {
return string(data), nil
} else {
return "", err
}