diff options
| author | 2026-03-25 14:34:50 +0000 | |
|---|---|---|
| committer | 2026-03-25 14:34:50 +0000 | |
| commit | e4a7aa0742f5070299d37e8421c99d67f0af3f90 (patch) | |
| tree | 36d89781476a92e61280c5ff232a2773e4092c0e /object/store/loose/read_reader.go | |
| parent | *: delta -> packfile/delta (diff) | |
| signature | No signature | |
*: object/store -> object/storer v0.1.107
Diffstat (limited to 'object/store/loose/read_reader.go')
| -rw-r--r-- | object/store/loose/read_reader.go | 118 |
1 files changed, 0 insertions, 118 deletions
diff --git a/object/store/loose/read_reader.go b/object/store/loose/read_reader.go deleted file mode 100644 index 29b71627..00000000 --- a/object/store/loose/read_reader.go +++ /dev/null @@ -1,118 +0,0 @@ -package loose - -import ( - "bufio" - "bytes" - "errors" - "io" - "os" - - "codeberg.org/lindenii/furgit/internal/compress/zlib" - "codeberg.org/lindenii/furgit/internal/iolimit" - objectid "codeberg.org/lindenii/furgit/object/id" - objecttype "codeberg.org/lindenii/furgit/object/type" -) - -type objectReader struct { - // reader is the stream exposed by Read. - reader io.Reader - // file is the underlying loose object file and is closed by Close. - file *os.File - // zr is the zlib decoder and is closed by Close. - zr io.ReadCloser -} - -func (reader *objectReader) Read(dst []byte) (int, error) { - return reader.reader.Read(dst) -} - -func (reader *objectReader) Close() error { - errZlib := reader.zr.Close() - errFile := reader.file.Close() - - return errors.Join(errZlib, errFile) -} - -// openInflated opens and zlib-decodes a loose object file. -// The caller owns both returned closers and must close them. -func (store *Store) openInflated(id objectid.ObjectID) (*os.File, io.ReadCloser, error) { - file, err := store.openObject(id) - if err != nil { - return nil, nil, err - } - - zr, err := zlib.NewReader(file) - if err != nil { - _ = file.Close() - - return nil, nil, err - } - - return file, zr, nil -} - -// ReadReaderFull reads a full serialized object stream as "type size\0content". -// -// The caller must close the returned reader. -// -// Close releases resources only. It does not drain unread data for additional -// validation. In particular, malformed trailing compressed data, trailing bytes -// past the declared object size, and the zlib Adler-32 trailer may go -// unverified unless the caller reads to io.EOF. -func (store *Store) ReadReaderFull(id objectid.ObjectID) (io.ReadCloser, error) { - file, zr, err := store.openInflated(id) - if err != nil { - return nil, err - } - - br := bufio.NewReader(zr) - - header, _, size, err := readHeader(br) - if err != nil { - _ = zr.Close() - _ = file.Close() - - return nil, err - } - - return &objectReader{ - reader: io.MultiReader( - bytes.NewReader(header), - iolimit.ExpectLengthReader(br, size), - ), - file: file, - zr: zr, - }, nil -} - -// ReadReaderContent reads an object's type, declared content length, and -// content stream. -// -// The caller must close the returned reader. -// -// Close releases resources only. It does not drain unread data for additional -// validation. In particular, malformed trailing compressed data, trailing bytes -// past the declared object size, and the zlib Adler-32 trailer may go -// unverified unless the caller reads to io.EOF. -func (store *Store) ReadReaderContent(id objectid.ObjectID) (objecttype.Type, int64, io.ReadCloser, error) { - file, zr, err := store.openInflated(id) - if err != nil { - return objecttype.TypeInvalid, 0, nil, err - } - - br := bufio.NewReader(zr) - - _, ty, size, err := readHeader(br) - if err != nil { - _ = zr.Close() - _ = file.Close() - - return objecttype.TypeInvalid, 0, nil, err - } - - return ty, size, &objectReader{ - reader: iolimit.ExpectLengthReader(br, size), - file: file, - zr: zr, - }, nil -} |
