libropkg: implement package manager system directory initialisation

libropkg/instance.h

@@ -0,0 +1,30 @@
+#ifndef _ROPKG_INSTANCE_H_
+#define _ROPKG_INSTANCE_H_
+
+#include <blue/io/directory.h>
+
+#define ROPKG_INSTANCE_DIRPATH_CONFIG   "etc/ropkg"
+#define ROPKG_INSTANCE_DIRPATH_CACHE    "var/cache/ropkg"
+#define ROPKG_INSTANCE_DIRPATH_DATABASE "var/lib/ropkg"
+
+#define ROPKG_INSTANCE_DIRPATH_CONFIG_COLLECTION                               \
+	ROPKG_INSTANCE_DIRPATH_CONFIG "/config"
+#define ROPKG_INSTANCE_DIRPATH_SOURCES ROPKG_INSTANCE_DIRPATH_CONFIG "/sources"
+#define ROPKG_INSTANCE_DIRPATH_AVAILABLE                                       \
+	ROPKG_INSTANCE_DIRPATH_DATABASE "/available.d"
+#define ROPKG_INSTANCE_DIRPATH_ARCHIVES ROPKG_INSTANCE_DIRPATH_CACHE "/archives"
+
+#define ROPKG_INSTANCE_FILEPATH_INSTALLED                                      \
+	ROPKG_INSTANCE_DIRPATH_DATABASE "/installed"
+#define ROPKG_INSTANCE_FILEPATH_AVAILABLE                                      \
+	ROPKG_INSTANCE_DIRPATH_DATABASE "/available"
+
+struct ropkg_instance {
+	b_directory *inst_root;
+
+	b_directory *inst_dir_config;
+	b_directory *inst_dir_cache;
+	b_directory *inst_dir_database;
+};
+
+#endif