/
opt.go
108 lines (87 loc) · 1.74 KB
/
opt.go
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package analytics
import (
"fmt"
"os"
"strings"
"github.com/tilt-dev/wmclient/pkg/dirs"
)
type Opt int
const (
OptDefault Opt = iota
OptOut
OptIn
)
var Choices = map[Opt]string{
OptDefault: "default",
OptOut: "opt-out",
OptIn: "opt-in",
}
func (o Opt) String() string {
val, ok := Choices[o]
if ok {
return val
}
return fmt.Sprintf("opt[%d]", o)
}
func ParseOpt(s string) (Opt, error) {
for k, v := range Choices {
// allow "<appName> analytics opt in" to work
if s == v || fmt.Sprintf("opt-%s", s) == v {
return k, nil
}
}
return OptDefault, fmt.Errorf("unknown analytics opt: %q", s)
}
func OptStatus() (Opt, error) {
txt, err := readChoiceFile()
if err != nil {
return OptDefault, err
}
// throw out invalid values
opt, err := ParseOpt(txt)
if err != nil {
opt = OptDefault
}
return opt, nil
}
// SetOptStr converts the given string into an Opt enum, and records that choice
// as the users analytics decision, returning the Opt set (and any errors).
func SetOptStr(s string) (Opt, error) {
choice, err := ParseOpt(s)
if err != nil {
return OptDefault, err
}
return choice, SetOpt(choice)
}
func SetOpt(c Opt) error {
s := c.String()
d, err := dirs.UseTiltDevDir()
if err != nil {
return err
}
if err = d.WriteFile(choiceFile, s); err != nil {
return err
}
return nil
}
func readChoiceFile() (string, error) {
d, err := dirs.UseTiltDevDir()
if err != nil {
return "", err
}
txt, err := d.ReadFile(choiceFile)
if err != nil {
if !os.IsNotExist(err) {
return "", err
}
txt = ""
}
return strings.TrimSpace(txt), nil
}
func optedIn() (bool, error) {
opt, err := OptStatus()
if err != nil {
return false, fmt.Errorf("analytics.optedIn: %v", err)
}
return opt == OptIn, nil
}