Add doctor version check (#318)

Add doctor version check

cmd/doctor.go

@@ -75,6 +75,8 @@ type doctorSuspiciousFilesCheck struct {
 	found     []string
 }
 
+type doctorVersionCheck struct{}
+
 func init() {
 	rootCmd.AddCommand(doctorCmd)
 }
@@ -98,6 +100,7 @@ func (c *Config) runDoctorCmd(fs vfs.FS, args []string) error {
 
 	allOK := true
 	for _, dc := range []doctorCheck{
+		&doctorVersionCheck{},
 		&doctorDirectoryCheck{
 			name:         "source directory",
 			path:         c.SourceDir,
@@ -379,3 +382,26 @@ func (c *doctorSuspiciousFilesCheck) Result() string {
 func (c *doctorSuspiciousFilesCheck) Skip() bool {
 	return false
 }
+
+func (doctorVersionCheck) Check() (bool, error) {
+	if VersionStr == devVersionStr || Commit == unknownStr || Date == unknownStr {
+		return false, nil
+	}
+	return true, nil
+}
+
+func (doctorVersionCheck) Enabled() bool {
+	return true
+}
+
+func (doctorVersionCheck) MustSucceed() bool {
+	return false
+}
+
+func (doctorVersionCheck) Result() string {
+	return "version " + rootCmd.Version
+}
+
+func (doctorVersionCheck) Skip() bool {
+	return false
+}

cmd/root.go

@@ -31,9 +31,10 @@ var config = Config{
 // Version information.
 var (
 	devVersionStr = "dev"
+	unknownStr    = "unknown"
 	VersionStr    = devVersionStr
-	Commit        = "unknown"
-	Date          = "unknown"
+	Commit        = unknownStr
+	Date          = unknownStr
 	Version       *semver.Version
 )