Files
forge/modules/util/sync.go
zeekayandHanzo Dev 9a07b4d089 legal: Hanzo AI, Inc. copyright above the upstream notices
2978 files. The fork is 2026-07-15 (rebrand: gitea.dev -> github.com/hanzoai/git),
so 2026 is the year, and "Copyright 2026 Hanzo AI, Inc." was already the form
used by the handful of files that had ours.

Shape is now:

	// Copyright 2026 Hanzo AI, Inc. All rights reserved.
	// Copyright 2015 The Gogs Authors. All rights reserved.
	// Copyright 2019 The Gitea Authors. All rights reserved.
	// SPDX-License-Identifier: MIT

Ours on top, theirs retained verbatim. Retained because MIT requires it, and
separately because they are true — those authors did write that code.

Not renamed to "The Git Authors": Git is a different project under a different
license, and putting its name here would attribute this code to people who have
nothing to do with it. Adding our line is the fix; overwriting theirs would have
been both a licence violation and a false statement.

gofmt still reports import-order drift in some of these files. It predates this
change (verified against a stash) and is left alone rather than burying a
one-line-per-file legal change under 3000 files of unrelated reordering.

Build clean.

Co-authored-by: Hanzo Dev <[email protected]>
2026-07-27 13:49:52 -07:00

53 lines
922 B
Go

// Copyright 2026 Hanzo AI, Inc. All rights reserved.
// Copyright 2026 The Gitea Authors. All rights reserved.
// SPDX-License-Identifier: MIT
package util
import (
"sync"
"sync/atomic"
)
type onceValueResult[T any] struct {
value T
panic any
}
// OnceValue is similar to Golang's "sync.OnceValue", but can be reset.
type OnceValue[T any] struct {
Func func() T
mu sync.Mutex
res atomic.Pointer[onceValueResult[T]]
}
func (o *OnceValue[T]) Value() T {
res := o.res.Load()
if res == nil {
o.mu.Lock()
defer o.mu.Unlock()
res = o.res.Load()
if res == nil {
res = &onceValueResult[T]{}
defer func() {
res.panic = recover()
o.res.Store(res)
if res.panic != nil {
panic(res.panic)
}
}()
res.value = o.Func()
}
}
if res.panic != nil {
panic(res.panic)
}
return res.value
}
func (o *OnceValue[T]) Reset() {
o.mu.Lock()
defer o.mu.Unlock()
o.res.Store(nil)
}