mirror of
https://github.com/tailscale/tailscale.git
synced 2024-11-25 19:15:34 +00:00
945cf836ee
When auto-update setting in local Prefs is unset, apply the tailnet default value from control. This only happens once, when we apply the default (or when the user manually overrides it), tailnet default no longer affects the node. Updates #16244 Signed-off-by: Andrew Lytvynov <awly@tailscale.com>
108 lines
2.1 KiB
Go
108 lines
2.1 KiB
Go
// Copyright (c) Tailscale Inc & AUTHORS
|
|
// SPDX-License-Identifier: BSD-3-Clause
|
|
|
|
// Package opt defines optional types.
|
|
package opt
|
|
|
|
import (
|
|
"fmt"
|
|
"strconv"
|
|
)
|
|
|
|
// Bool represents an optional boolean to be JSON-encoded. The string
|
|
// is either "true", "false", or the empty string to mean unset.
|
|
//
|
|
// As a special case, the underlying string may also be the string
|
|
// "unset" as as a synonym for the empty string. This lets the
|
|
// explicit unset value be exchanged over an encoding/json "omitempty"
|
|
// field without it being dropped.
|
|
type Bool string
|
|
|
|
// NewBool constructs a new Bool value equal to b. The returned Bool is set,
|
|
// unless Set("") or Clear() methods are called.
|
|
func NewBool(b bool) Bool {
|
|
return Bool(strconv.FormatBool(b))
|
|
}
|
|
|
|
func (b *Bool) Set(v bool) {
|
|
*b = Bool(strconv.FormatBool(v))
|
|
}
|
|
|
|
func (b *Bool) Clear() { *b = "" }
|
|
|
|
func (b Bool) Get() (v bool, ok bool) {
|
|
switch b {
|
|
case "true":
|
|
return true, true
|
|
case "false":
|
|
return false, true
|
|
default:
|
|
return false, false
|
|
}
|
|
}
|
|
|
|
// Scan implements database/sql.Scanner.
|
|
func (b *Bool) Scan(src any) error {
|
|
if src == nil {
|
|
*b = ""
|
|
return nil
|
|
}
|
|
switch src := src.(type) {
|
|
case bool:
|
|
if src {
|
|
*b = "true"
|
|
} else {
|
|
*b = "false"
|
|
}
|
|
return nil
|
|
case int64:
|
|
if src == 0 {
|
|
*b = "false"
|
|
} else {
|
|
*b = "true"
|
|
}
|
|
return nil
|
|
default:
|
|
return fmt.Errorf("opt.Bool.Scan: invalid type %T: %v", src, src)
|
|
}
|
|
}
|
|
|
|
// EqualBool reports whether b is equal to v.
|
|
// If b is empty or not a valid bool, it reports false.
|
|
func (b Bool) EqualBool(v bool) bool {
|
|
p, ok := b.Get()
|
|
return ok && p == v
|
|
}
|
|
|
|
var (
|
|
trueBytes = []byte("true")
|
|
falseBytes = []byte("false")
|
|
nullBytes = []byte("null")
|
|
)
|
|
|
|
func (b Bool) MarshalJSON() ([]byte, error) {
|
|
switch b {
|
|
case "true":
|
|
return trueBytes, nil
|
|
case "false":
|
|
return falseBytes, nil
|
|
case "", "unset":
|
|
return nullBytes, nil
|
|
}
|
|
return nil, fmt.Errorf("invalid opt.Bool value %q", string(b))
|
|
}
|
|
|
|
func (b *Bool) UnmarshalJSON(j []byte) error {
|
|
switch string(j) {
|
|
case "true":
|
|
*b = "true"
|
|
case "false":
|
|
*b = "false"
|
|
case "null":
|
|
*b = "unset"
|
|
default:
|
|
return fmt.Errorf("invalid opt.Bool value %q", j)
|
|
}
|
|
return nil
|
|
}
|