5cd8ba2421
Previously all (except one!) usage of goenv.Version manually added the git sha1 hash, leading to duplicate code. I've moved this to do it all in one place, to avoid this duplication.
66 строки
1,7 КиБ
Go
66 строки
1,7 КиБ
Go
package goenv
|
|
|
|
import (
|
|
"errors"
|
|
"fmt"
|
|
"io"
|
|
"strings"
|
|
)
|
|
|
|
// Version of TinyGo.
|
|
// Update this value before release of new version of software.
|
|
const version = "0.30.0"
|
|
|
|
var (
|
|
// This variable is set at build time using -ldflags parameters.
|
|
// See: https://stackoverflow.com/a/11355611
|
|
GitSha1 string
|
|
)
|
|
|
|
// Return TinyGo version, either in the form 0.30.0 or as a development version
|
|
// (like 0.30.0-dev-abcd012).
|
|
func Version() string {
|
|
v := version
|
|
if strings.HasSuffix(version, "-dev") && GitSha1 != "" {
|
|
v += "-" + GitSha1
|
|
}
|
|
return v
|
|
}
|
|
|
|
// GetGorootVersion returns the major and minor version for a given GOROOT path.
|
|
// If the goroot cannot be determined, (0, 0) is returned.
|
|
func GetGorootVersion() (major, minor int, err error) {
|
|
s, err := GorootVersionString()
|
|
if err != nil {
|
|
return 0, 0, err
|
|
}
|
|
|
|
if s == "" || s[:2] != "go" {
|
|
return 0, 0, errors.New("could not parse Go version: version does not start with 'go' prefix")
|
|
}
|
|
|
|
parts := strings.Split(s[2:], ".")
|
|
if len(parts) < 2 {
|
|
return 0, 0, errors.New("could not parse Go version: version has less than two parts")
|
|
}
|
|
|
|
// Ignore the errors, we don't really handle errors here anyway.
|
|
var trailing string
|
|
n, err := fmt.Sscanf(s, "go%d.%d%s", &major, &minor, &trailing)
|
|
if n == 2 && err == io.EOF {
|
|
// Means there were no trailing characters (i.e., not an alpha/beta)
|
|
err = nil
|
|
}
|
|
if err != nil {
|
|
return 0, 0, fmt.Errorf("failed to parse version: %s", err)
|
|
}
|
|
return
|
|
}
|
|
|
|
// GorootVersionString returns the version string as reported by the Go
|
|
// toolchain. It is usually of the form `go1.x.y` but can have some variations
|
|
// (for beta releases, for example).
|
|
func GorootVersionString() (string, error) {
|
|
err := readGoEnvVars()
|
|
return goEnvVars.GOVERSION, err
|
|
}
|