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user.go
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user.go
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package config
import (
"encoding/json"
"io/ioutil"
"path/filepath"
writeas "github.com/writeas/go-writeas/v2"
"github.com/writeas/writeas-cli/fileutils"
"gopkg.in/urfave/cli.v1"
)
func LoadUser(c *cli.Context) (*writeas.AuthUser, error) {
dir, err := UserHostDir(c)
if err != nil {
return nil, err
}
DirMustExist(dir)
username, err := CurrentUser(c)
if err != nil {
return nil, err
}
if username == "user" {
username = ""
}
fname := filepath.Join(dir, username, "user.json")
userJSON, err := ioutil.ReadFile(fname)
if err != nil {
if !fileutils.Exists(fname) {
// Don't return a file-not-found error
return nil, nil
}
return nil, err
}
// Parse JSON file
u := &writeas.AuthUser{}
err = json.Unmarshal(userJSON, u)
if err != nil {
return nil, err
}
return u, nil
}
func DeleteUser(c *cli.Context) error {
dir, err := UserHostDir(c)
if err != nil {
return err
}
username, err := CurrentUser(c)
if err != nil {
return err
}
if username == "user" {
username = ""
}
// Delete user data
err = fileutils.DeleteFile(filepath.Join(dir, username, "user.json"))
if err != nil {
return err
}
// Do additional cleanup in wf-cli
if c.App.Name == "wf" {
// Delete user dir if it's empty
userEmpty, err := fileutils.IsEmpty(filepath.Join(dir, username))
if err != nil {
return err
}
if !userEmpty {
return nil
}
err = fileutils.DeleteFile(filepath.Join(dir, username))
if err != nil {
return err
}
// Delete host dir if it's empty
hostEmpty, err := fileutils.IsEmpty(dir)
if err != nil {
return err
}
if !hostEmpty {
return nil
}
err = fileutils.DeleteFile(dir)
if err != nil {
return err
}
}
return nil
}
func SaveUser(c *cli.Context, u *writeas.AuthUser) error {
// Marshal struct into pretty-printed JSON
userJSON, err := json.MarshalIndent(u, "", " ")
if err != nil {
return err
}
dir, err := UserHostDir(c)
if err != nil {
return err
}
// Save file
username, err := CurrentUser(c)
if err != nil {
return err
}
if username != "user" {
dir = filepath.Join(dir, u.User.Username)
}
DirMustExist(dir)
err = ioutil.WriteFile(filepath.Join(dir, "user.json"), userJSON, 0600)
if err != nil {
return err
}
return nil
}
// UserHostDir returns the path to the user data directory with the host based
// subpath if the host flag is set
func UserHostDir(c *cli.Context) (string, error) {
dataDir := UserDataDir(c.App.ExtraInfo()["configDir"])
hostDir, err := HostDirectory(c)
if err != nil {
return "", err
}
return filepath.Join(dataDir, hostDir), nil
}
// CurrentUser returns the username of the user taking action in the current
// cli.Context.
func CurrentUser(c *cli.Context) (string, error) {
// Load host-level config, if host flag is set
hostDir, err := UserHostDir(c)
if err != nil {
return "", err
}
cfg, err := LoadConfig(hostDir)
if err != nil {
return "", err
}
if cfg.Default.User == "" {
// Load app-level config
globalCFG, err := LoadConfig(UserDataDir(c.App.ExtraInfo()["configDir"]))
if err != nil {
return "", err
}
// only user global defaults when both are set and hosts match
if globalCFG.Default.User != "" &&
globalCFG.Default.Host != "" &&
c.GlobalIsSet("host") &&
globalCFG.Default.Host == c.GlobalString("host") {
cfg = globalCFG
}
}
// Use user flag value
if c.GlobalString("user") != "" {
return c.GlobalString("user"), nil
}
return cfg.Default.User, nil
}

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