func ConfigSet(configStore *config.Store, app, env string, envVars []string) error {
if len(envVars) == 0 {
bytes, err := ioutil.ReadAll(os.Stdin)
if err != nil {
return err
}
envVars = strings.Split(string(bytes), "\n")
}
if len(envVars) == 0 {
return fmt.Errorf("no config values specified.")
}
svcCfg, err := configStore.GetApp(app, env)
if err != nil {
return fmt.Errorf("unable to set config: %s.", err)
}
if svcCfg == nil {
svcCfg = configStore.NewAppConfig(app, "")
}
updated := false
for _, arg := range envVars {
if strings.TrimSpace(arg) == "" {
continue
}
if !strings.Contains(arg, "=") {
return fmt.Errorf("bad config variable format: %s", arg)
}
sep := strings.Index(arg, "=")
k := strings.ToUpper(strings.TrimSpace(arg[0:sep]))
v := strings.TrimSpace(arg[sep+1:])
if k == "ENV" {
log.Warnf("%s cannot be updated.", k)
continue
}
log.Printf("%s=%s\n", k, v)
svcCfg.EnvSet(k, v)
updated = true
}
if !updated {
return fmt.Errorf("configuration NOT changed for %s", app)
}
updated, err = configStore.UpdateApp(svcCfg, env)
if err != nil {
return fmt.Errorf("unable to set config: %s.", err)
}
if !updated {
return fmt.Errorf("configuration NOT changed for %s", app)
}
log.Printf("Configuration changed for %s. v%d\n", app, svcCfg.ID())
return nil
}