func configFrom(file string) *config.Config {
// Find the file...
if file != "" {
if _, err := os.Stat(file); os.IsNotExist(err) {
glog.Fatalln("Cannot find specified configuration file", file, ", aborting.")
}
} else if _, err := os.Stat(os.Getenv("CAYLEY_CFG")); err == nil {
file = os.Getenv("CAYLEY_CFG")
} else if _, err := os.Stat("/etc/cayley.cfg"); err == nil {
file = "/etc/cayley.cfg"
}
if file == "" {
glog.Infoln("Couldn't find a config file in either $CAYLEY_CFG or /etc/cayley.cfg. Going by flag defaults only.")
}
cfg, err := config.Load(file)
if err != nil {
glog.Fatalln(err)
}
if cfg.DatabasePath == "" {
cfg.DatabasePath = *databasePath
}
if cfg.DatabaseType == "" {
cfg.DatabaseType = *databaseBackend
}
if cfg.ReplicationType == "" {
cfg.ReplicationType = *replicationBackend
}
if cfg.ListenHost == "" {
cfg.ListenHost = *host
}
if cfg.ListenPort == "" {
cfg.ListenPort = *port
}
if cfg.Timeout == 0 {
cfg.Timeout = *timeout
}
if cfg.LoadSize == 0 {
cfg.LoadSize = *loadSize
}
cfg.ReadOnly = cfg.ReadOnly || *readOnly
return cfg
}
func configFrom(file string) (*config.Config, error) {
// Find the file...
if file != "" {
if _, err := os.Stat(file); os.IsNotExist(err) {
return nil, fmt.Errorf("Cannot find specified configuration file", file)
}
} else if _, err := os.Stat("/cayley_appengine.cfg"); err == nil {
file = "/cayley_appengine.cfg"
}
if file == "" {
glog.Infoln("Couldn't find a config file appengine.cfg. Going by flag defaults only.")
}
cfg, err := config.Load(file)
if err != nil {
return nil, err
}
if cfg.DatabasePath == "" {
cfg.DatabasePath = databasePath
}
if cfg.DatabaseType == "" {
cfg.DatabaseType = databaseBackend
}
if cfg.ReplicationType == "" {
cfg.ReplicationType = replicationBackend
}
if cfg.ListenHost == "" {
cfg.ListenHost = host
}
if cfg.ListenPort == "" {
cfg.ListenPort = port
}
if cfg.Timeout == 0 {
cfg.Timeout = timeout
}
if cfg.LoadSize == 0 {
cfg.LoadSize = loadSize
}
cfg.ReadOnly = cfg.ReadOnly || readOnly
return cfg, nil
}