Urgh I made some wrong amends and I'm too tired to separate the commits out this time

ancestor: Split out of reachability
mergebase: Add merge base routines
internal/commitquery: Add commit query context engine thingy
internal/peel: Shared tag peeling
errors: Shared object query errors
internal/testgit: Add rooted repo helpers; remove raw path access
objectstore/memory: Add in-memory object store
objectid: Add Compare helper

1 files changed, 29 insertions, 0 deletions

diff --git a/objectstore/memory/read_reader.go b/objectstore/memory/read_reader.go
new file mode 100644
index 00000000..2e3feda1
--- /dev/null
+++ b/objectstore/memory/read_reader.go
@@ -0,0 +1,29 @@
+package memory
+
+import (
+	"bytes"
+	"io"
+
+	"codeberg.org/lindenii/furgit/objectid"
+	"codeberg.org/lindenii/furgit/objecttype"
+)
+
+// ReadReaderFull reads one full object through a reader.
+func (store *Store) ReadReaderFull(id objectid.ObjectID) (io.ReadCloser, error) {
+	raw, err := store.ReadBytesFull(id)
+	if err != nil {
+		return nil, err
+	}
+
+	return io.NopCloser(bytes.NewReader(raw)), nil
+}
+
+// ReadReaderContent reads one object body through a reader.
+func (store *Store) ReadReaderContent(id objectid.ObjectID) (objecttype.Type, int64, io.ReadCloser, error) {
+	ty, content, err := store.ReadBytesContent(id)
+	if err != nil {
+		return objecttype.TypeInvalid, 0, nil, err
+	}
+
+	return ty, int64(len(content)), io.NopCloser(bytes.NewReader(content)), nil
+}