Add currently existing PackageKit backend

backend/pkgtools.h

@@ -0,0 +1,36 @@
+#ifndef __SLACK_PKGTOOLS_H
+#define __SLACK_PKGTOOLS_H
+
+#include <glib-object.h>
+#include <pk-backend.h>
+
+namespace slack {
+
+class Pkgtools
+{
+public:
+	const gchar *get_name () const noexcept;
+	const gchar *get_mirror () const noexcept;
+	guint8 get_order () const noexcept;
+	gboolean is_blacklisted (const gchar *pkg) const noexcept;
+
+	virtual ~Pkgtools () noexcept;
+
+	gboolean download (PkBackendJob *job,
+			gchar *dest_dir_name, gchar *pkg_name) noexcept;
+	void install (PkBackendJob *job, gchar *pkg_name) noexcept;
+
+	virtual GSList *collect_cache_info (const gchar *tmpl) noexcept = 0;
+	virtual void generate_cache (PkBackendJob *job,
+			const gchar *tmpl) noexcept = 0;
+
+protected:
+	gchar *name = NULL;
+	gchar *mirror = NULL;
+	guint8 order;
+	GRegex *blacklist = NULL;
+};
+
+}
+
+#endif /* __SLACK_PKGTOOLS_H */