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package object
import (
"fmt"
"codeberg.org/lindenii/furgit/internal/objectheader"
"codeberg.org/lindenii/furgit/objecttype"
"codeberg.org/lindenii/furgit/objectid"
)
// ParseObjectWithoutHeader parses a typed object body.
func ParseObjectWithoutHeader(ty objecttype.Type, body []byte, algo objectid.Algorithm) (Object, error) {
switch ty {
case objecttype.TypeBlob:
return ParseBlob(body)
case objecttype.TypeTree:
return ParseTree(body, algo)
case objecttype.TypeCommit:
return ParseCommit(body, algo)
case objecttype.TypeTag:
return ParseTag(body, algo)
default:
return nil, fmt.Errorf("object: unsupported object type %d", ty)
}
}
// ParseObjectWithHeader parses a loose object in "type size\\x00body" format.
func ParseObjectWithHeader(raw []byte, algo objectid.Algorithm) (Object, error) {
ty, size, headerLen, ok := objectheader.Parse(raw)
if !ok {
return nil, fmt.Errorf("object: malformed object header")
}
body := raw[headerLen:]
if int64(len(body)) != size {
return nil, fmt.Errorf("object: size mismatch: header says %d bytes, body has %d", size, len(body))
}
return ParseObjectWithoutHeader(ty, body, algo)
}
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