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config.go
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config.go
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package cmd
import (
"encoding/json"
"errors"
"io/ioutil"
"os"
"path/filepath"
"github.com/infrahq/infra/uid"
)
// current: v0.3
type ClientConfig struct {
Version string `json:"version"`
Hosts []ClientHostConfig `json:"hosts"`
}
// current: v0.3
type ClientHostConfig struct {
ID uid.ID `json:"id"`
Name string `json:"name"`
Host string `json:"host"`
Token string `json:"token"`
SkipTLSVerify bool `json:"skip-tls-verify"` // where is the other cert info stored?
ProviderID uid.ID `json:"provider-id"`
Current bool `json:"current"`
}
//lint:ignore ST1005, user facing error
var ErrConfigNotFound = errors.New(`Could not read local credentials. Are you logged in? Use "infra login" to login`)
func NewClientConfig() *ClientConfig {
return &ClientConfig{
Version: "0.3",
}
}
func readConfig() (*ClientConfig, error) {
config := &ClientConfig{}
infraDir, err := infraHomeDir()
if err != nil {
return nil, err
}
contents, err := ioutil.ReadFile(filepath.Join(infraDir, "config"))
if os.IsNotExist(err) {
return nil, ErrConfigNotFound
}
if err != nil {
return nil, err
}
if err = json.Unmarshal(contents, &config); err != nil {
return nil, err
}
if config.Version == "" {
// if version is missing, it needs to be updated to the latest
configv0dot1 := ClientConfigV0dot1{}
if err = json.Unmarshal(contents, &configv0dot1); err != nil {
return nil, err
}
return configv0dot1.ToV0dot2().ToV0dot3(), nil
} else if config.Version == "0.2" {
configv0dot2 := ClientConfigV0dot2{}
if err = json.Unmarshal(contents, &configv0dot2); err != nil {
return nil, err
}
return configv0dot2.ToV0dot3(), nil
}
return config, nil
}
func writeConfig(config *ClientConfig) error {
infraDir, err := infraHomeDir()
if err != nil {
return err
}
contents, err := json.Marshal(config)
if err != nil {
return err
}
if err = ioutil.WriteFile(filepath.Join(infraDir, "config"), []byte(contents), 0o600); err != nil {
return err
}
return nil
}
func currentHostConfig() (*ClientHostConfig, error) {
return readHostConfig("")
}
func readHostConfig(host string) (*ClientHostConfig, error) {
cfg, err := readConfig()
if err != nil {
return nil, err
}
for i, c := range cfg.Hosts {
if len(host) == 0 && c.Current {
return &cfg.Hosts[i], nil
}
if c.Host == host {
return &cfg.Hosts[i], nil
}
}
return nil, ErrConfigNotFound
}
func removeHostConfig(host string) error {
cfg, err := readConfig()
if err != nil {
return err
}
for i, c := range cfg.Hosts {
if c.Host == host {
cfg.Hosts = append(cfg.Hosts[:i], cfg.Hosts[i+1:]...)
break
}
}
err = writeConfig(cfg)
if err != nil {
return err
}
return nil
}