mirror of
https://github.com/hanzoai/forge.git
synced 2026-10-30 15:00:39 +00:00
zeekayandHanzo Dev
9a07b4d089
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]>
108 lines
2.3 KiB
Go
108 lines
2.3 KiB
Go
// Copyright 2026 Hanzo AI, Inc. All rights reserved.
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// Copyright 2023 The Gitea Authors. All rights reserved.
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// SPDX-License-Identifier: MIT
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package git
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import (
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"bytes"
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"encoding/hex"
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"fmt"
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)
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type ObjectID interface {
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String() string
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RefName() RefName
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IsZero() bool
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RawValue() []byte
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Type() ObjectFormat
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}
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type Sha1Hash [20]byte
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var _ ObjectID = (*Sha1Hash)(nil)
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func (h *Sha1Hash) String() string {
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return hex.EncodeToString(h[:])
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}
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func (h *Sha1Hash) RefName() RefName {
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return RefName(h.String())
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}
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func (h *Sha1Hash) IsZero() bool {
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empty := Sha1Hash{}
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return bytes.Equal(empty[:], h[:])
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}
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func (h *Sha1Hash) RawValue() []byte { return h[:] }
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func (*Sha1Hash) Type() ObjectFormat { return Sha1ObjectFormat }
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func MustIDFromString(hexHash string) ObjectID {
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id, err := NewIDFromString(hexHash)
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if err != nil {
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panic(err)
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}
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return id
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}
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type Sha256Hash [32]byte
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var _ ObjectID = (*Sha256Hash)(nil)
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func (h *Sha256Hash) String() string {
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return hex.EncodeToString(h[:])
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}
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func (h *Sha256Hash) RefName() RefName {
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return RefName(h.String())
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}
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func (h *Sha256Hash) IsZero() bool {
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empty := Sha256Hash{}
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return bytes.Equal(empty[:], h[:])
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}
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func (h *Sha256Hash) RawValue() []byte { return h[:] }
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func (*Sha256Hash) Type() ObjectFormat { return Sha256ObjectFormat }
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func NewIDFromString(hexHash string) (ObjectID, error) {
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var theObjectFormat ObjectFormat
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for _, objectFormat := range DefaultFeatures().SupportedObjectFormats {
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if len(hexHash) == objectFormat.FullLength() {
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theObjectFormat = objectFormat
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break
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}
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}
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if theObjectFormat == nil {
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return nil, fmt.Errorf("length %d has no matched object format: %s", len(hexHash), hexHash)
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}
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b, err := hex.DecodeString(hexHash)
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if err != nil {
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return nil, err
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}
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if len(b) != theObjectFormat.FullLength()/2 {
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return theObjectFormat.EmptyObjectID(), fmt.Errorf("length must be %d: %v", theObjectFormat.FullLength(), b)
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}
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return theObjectFormat.MustID(b), nil
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}
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func IsEmptyCommitID(commitID string) bool {
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if commitID == "" {
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return true
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}
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id, err := NewIDFromString(commitID)
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if err != nil {
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return false
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}
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return id.IsZero()
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}
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// ComputeBlobHash compute the hash for a given blob content
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func ComputeBlobHash(hashType ObjectFormat, content []byte) ObjectID {
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return hashType.ComputeHash(ObjectBlob, content)
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}
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