comics: Use libarchive to unpack documents

This commit eliminates the use of external commands for opening
comic documents, and uses libarchive instead.

1 files changed, 56 insertions, 0 deletions

diff --git a/backend/comics/ev-archive.h b/backend/comics/ev-archive.h
new file mode 100644
index 00000000..b4e1399c
--- /dev/null
+++ b/backend/comics/ev-archive.h
@@ -0,0 +1,56 @@
+/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8; c-indent-level: 8 -*- */
+/*
+ * Copyright (C) 2017, Bastien Nocera <[email protected]>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ */
+
+#pragma once
+
+#include <glib-object.h>
+
+G_BEGIN_DECLS
+
+#define EV_TYPE_ARCHIVE ev_archive_get_type ()
+G_DECLARE_FINAL_TYPE (EvArchive, ev_archive, EV, ARCHIVE, GObject)
+
+typedef enum {
+	EV_ARCHIVE_TYPE_NONE = 0,
+	EV_ARCHIVE_TYPE_RAR,
+	EV_ARCHIVE_TYPE_ZIP,
+	EV_ARCHIVE_TYPE_7Z,
+	EV_ARCHIVE_TYPE_TAR
+} EvArchiveType;
+
+EvArchive     *ev_archive_new                (void);
+gboolean       ev_archive_set_archive_type   (EvArchive     *archive,
+					      EvArchiveType  archive_type);
+EvArchiveType  ev_archive_get_archive_type   (EvArchive     *archive);
+gboolean       ev_archive_open_filename      (EvArchive     *archive,
+					      const char    *path,
+					      GError       **error);
+gboolean       ev_archive_read_next_header   (EvArchive     *archive,
+					      GError       **error);
+gboolean       ev_archive_at_entry           (EvArchive     *archive);
+const char    *ev_archive_get_entry_pathname (EvArchive     *archive);
+gint64         ev_archive_get_entry_size     (EvArchive     *archive);
+gboolean       ev_archive_get_entry_is_encrypted (EvArchive *archive);
+gssize         ev_archive_read_data          (EvArchive     *archive,
+					      void          *buf,
+					      gsize          count,
+					      GError       **error);
+void           ev_archive_reset              (EvArchive     *archive);
+
+G_END_DECLS