Implement commits

src/types.h

@@ -0,0 +1,40 @@
+#ifndef TYPES_H
+#define TYPES_H 1
+
+#include <stddef.h>
+
+enum object_type
+{
+    BLOB,
+    TREE,
+    COMMIT
+};
+
+struct object
+{
+    char* content;
+    size_t size;
+    enum object_type object_type;
+};
+
+struct entry {
+    char *checksum;
+    char *filename;
+    struct entry *previous;
+    struct entry *next;
+};
+
+struct tree {
+    size_t entries_size;
+    struct entry *first_entry;
+    struct entry *last_entry;
+};
+
+struct commit
+{
+    char *tree;
+    char *parent;
+    char *author;
+};
+
+#endif // TYPES_H