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Adjust object format interface (#28469)

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- Remove `ObjectFormatID`
- Remove function `ObjectFormatFromID`.
- Use `Sha1ObjectFormat` directly but not a pointer because it's an
empty struct.
- Store `ObjectFormatName` in `repository` struct
This commit is contained in:
Lunny Xiao
2023-12-17 19:56:08 +08:00
committed by GitHub
parent 7fb6b51470
commit 408a484224
54 changed files with 191 additions and 203 deletions
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33
modules/git/object_id.go
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@@ -31,18 +31,15 @@ func (h *Sha1Hash) IsZero() bool {
return bytes.Equal(empty[:], h[:])
}
func (h *Sha1Hash) RawValue() []byte { return h[:] }
func (*Sha1Hash) Type() ObjectFormat { return &Sha1ObjectFormat{} }
func (*Sha1Hash) Type() ObjectFormat { return Sha1ObjectFormat }
func NewSha1() *Sha1Hash {
return &Sha1Hash{}
}
var _ ObjectID = &Sha1Hash{}
// NewHash is for generic implementations
func NewHash(hash string) (ObjectID, error) {
hash = strings.ToLower(hash)
switch hash {
case "sha1":
return &Sha1Hash{}, nil
// EmptyObjectID creates a new ObjectID from an object format hash name
func EmptyObjectID(objectFormatName string) (ObjectID, error) {
objectFormat := ObjectFormatFromName(objectFormatName)
if objectFormat != nil {
return objectFormat.EmptyObjectID(), nil
}
return nil, errors.New("unsupported hash type")
@@ -50,7 +47,7 @@ func NewHash(hash string) (ObjectID, error) {
func IDFromRaw(h ObjectFormat, b []byte) (ObjectID, error) {
if len(b) != h.FullLength()/2 {
return h.Empty(), fmt.Errorf("length must be %d: %v", h.FullLength(), b)
return h.EmptyObjectID(), fmt.Errorf("length must be %d: %v", h.FullLength(), b)
}
return h.MustID(b), nil
}
@@ -63,24 +60,20 @@ func MustIDFromString(h ObjectFormat, s string) ObjectID {
func genericIDFromString(h ObjectFormat, s string) (ObjectID, error) {
s = strings.TrimSpace(s)
if len(s) != h.FullLength() {
return h.Empty(), fmt.Errorf("length must be %d: %s", h.FullLength(), s)
return h.EmptyObjectID(), fmt.Errorf("length must be %d: %s", h.FullLength(), s)
}
b, err := hex.DecodeString(s)
if err != nil {
return h.Empty(), err
return h.EmptyObjectID(), err
}
return h.NewID(b)
}
func IDFromString(hexHash string) (ObjectID, error) {
switch len(hexHash) {
case 40:
hashType := Sha1ObjectFormat{}
h, err := hashType.NewIDFromString(hexHash)
if err != nil {
return nil, err
for _, objectFormat := range SupportedObjectFormats {
if len(hexHash) == objectFormat.FullLength() {
return objectFormat.NewIDFromString(hexHash)
}
return h, nil
}
return nil, fmt.Errorf("invalid hash hex string: '%s' len: %d", hexHash, len(hexHash))