mirror of
https://codeberg.org/forgejo/forgejo.git
synced 2024-12-23 17:14:24 +00:00
408a484224
- Remove `ObjectFormatID` - Remove function `ObjectFormatFromID`. - Use `Sha1ObjectFormat` directly but not a pointer because it's an empty struct. - Store `ObjectFormatName` in `repository` struct
97 lines
2.3 KiB
Go
97 lines
2.3 KiB
Go
// Copyright 2023 The Gitea Authors. All rights reserved.
|
|
// SPDX-License-Identifier: MIT
|
|
|
|
package git
|
|
|
|
import (
|
|
"crypto/sha1"
|
|
"regexp"
|
|
)
|
|
|
|
// sha1Pattern can be used to determine if a string is an valid sha
|
|
var sha1Pattern = regexp.MustCompile(`^[0-9a-f]{4,40}$`)
|
|
|
|
type ObjectFormat interface {
|
|
// Name returns the name of the object format
|
|
Name() string
|
|
// EmptyObjectID creates a new empty ObjectID from an object format hash name
|
|
EmptyObjectID() ObjectID
|
|
// EmptyTree is the hash of an empty tree
|
|
EmptyTree() ObjectID
|
|
// FullLength is the length of the hash's hex string
|
|
FullLength() int
|
|
|
|
IsValid(input string) bool
|
|
MustID(b []byte) ObjectID
|
|
MustIDFromString(s string) ObjectID
|
|
NewID(b []byte) (ObjectID, error)
|
|
NewIDFromString(s string) (ObjectID, error)
|
|
|
|
NewHasher() HasherInterface
|
|
}
|
|
|
|
type Sha1ObjectFormatImpl struct{}
|
|
|
|
var (
|
|
emptyObjectID = &Sha1Hash{}
|
|
emptyTree = &Sha1Hash{
|
|
0x4b, 0x82, 0x5d, 0xc6, 0x42, 0xcb, 0x6e, 0xb9, 0xa0, 0x60,
|
|
0xe5, 0x4b, 0xf8, 0xd6, 0x92, 0x88, 0xfb, 0xee, 0x49, 0x04,
|
|
}
|
|
)
|
|
|
|
func (Sha1ObjectFormatImpl) Name() string { return "sha1" }
|
|
func (Sha1ObjectFormatImpl) EmptyObjectID() ObjectID {
|
|
return emptyObjectID
|
|
}
|
|
|
|
func (Sha1ObjectFormatImpl) EmptyTree() ObjectID {
|
|
return emptyTree
|
|
}
|
|
func (Sha1ObjectFormatImpl) FullLength() int { return 40 }
|
|
func (Sha1ObjectFormatImpl) IsValid(input string) bool {
|
|
return sha1Pattern.MatchString(input)
|
|
}
|
|
|
|
func (Sha1ObjectFormatImpl) MustID(b []byte) ObjectID {
|
|
var id Sha1Hash
|
|
copy(id[0:20], b)
|
|
return &id
|
|
}
|
|
|
|
func (h Sha1ObjectFormatImpl) MustIDFromString(s string) ObjectID {
|
|
return MustIDFromString(h, s)
|
|
}
|
|
|
|
func (h Sha1ObjectFormatImpl) NewID(b []byte) (ObjectID, error) {
|
|
return IDFromRaw(h, b)
|
|
}
|
|
|
|
func (h Sha1ObjectFormatImpl) NewIDFromString(s string) (ObjectID, error) {
|
|
return genericIDFromString(h, s)
|
|
}
|
|
|
|
func (h Sha1ObjectFormatImpl) NewHasher() HasherInterface {
|
|
return &Sha1Hasher{sha1.New()}
|
|
}
|
|
|
|
var Sha1ObjectFormat ObjectFormat = Sha1ObjectFormatImpl{}
|
|
|
|
var SupportedObjectFormats = []ObjectFormat{
|
|
Sha1ObjectFormat,
|
|
// TODO: add sha256
|
|
}
|
|
|
|
func ObjectFormatFromName(name string) ObjectFormat {
|
|
for _, objectFormat := range SupportedObjectFormats {
|
|
if name == objectFormat.Name() {
|
|
return objectFormat
|
|
}
|
|
}
|
|
return nil
|
|
}
|
|
|
|
func IsValidObjectFormat(name string) bool {
|
|
return ObjectFormatFromName(name) != nil
|
|
}
|