odb: introduce "files" source

Introduce a new "files" object database source. This source encapsulates
access to both loose object files and the packfile store, similar to how
the "files" backend for refs encapsulates access to loose refs and the
packed-refs file.

Note that for now the "files" source is still a direct member of a
`struct odb_source`. This architecture will be reversed in the next
commit so that the files source contains a `struct odb_source`.

Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

1 files changed, 23 insertions, 0 deletions

diff --git a/odb/source-files.c b/odb/source-files.c
new file mode 100644
index 0000000000..cbdaa6850f
--- /dev/null
+++ b/odb/source-files.c
@@ -0,0 +1,23 @@
+#include "git-compat-util.h"
+#include "object-file.h"
+#include "odb/source-files.h"
+#include "packfile.h"
+
+void odb_source_files_free(struct odb_source_files *files)
+{
+	if (!files)
+		return;
+	odb_source_loose_free(files->loose);
+	packfile_store_free(files->packed);
+	free(files);
+}
+
+struct odb_source_files *odb_source_files_new(struct odb_source *source)
+{
+	struct odb_source_files *files;
+	CALLOC_ARRAY(files, 1);
+	files->source = source;
+	files->loose = odb_source_loose_new(source);
+	files->packed = packfile_store_new(source);
+	return files;
+}