Add Zipper class and use it in CinemaKDMs.

1 files changed, 78 insertions, 0 deletions

diff --git a/src/lib/zipper.cc b/src/lib/zipper.cc
new file mode 100644
index 000000000..d43b18ef0
--- /dev/null
+++ b/src/lib/zipper.cc
@@ -0,0 +1,78 @@
+/*
+    Copyright (C) 2020 Carl Hetherington <cth@carlh.net>
+
+    This file is part of DCP-o-matic.
+
+    DCP-o-matic 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 of the License, or
+    (at your option) any later version.
+
+    DCP-o-matic 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 DCP-o-matic.  If not, see <http://www.gnu.org/licenses/>.
+
+*/
+
+#include "zipper.h"
+#include "exceptions.h"
+#include "dcpomatic_assert.h"
+#include <zip.h>
+#include <boost/filesystem.hpp>
+#include <stdexcept>
+
+using std::string;
+using std::runtime_error;
+using boost::shared_ptr;
+
+
+Zipper::Zipper (boost::filesystem::path file)
+{
+	int error;
+	_zip = zip_open (file.string().c_str(), ZIP_CREATE | ZIP_EXCL, &error);
+	if (!_zip) {
+		if (error == ZIP_ER_EXISTS) {
+			throw FileError ("ZIP file already exists", file);
+		}
+		throw FileError ("could not create ZIP file", file);
+	}
+}
+
+
+void
+Zipper::add (string name, string content)
+{
+	shared_ptr<string> copy(new string(content));
+	_store.push_back (copy);
+
+	struct zip_source* source = zip_source_buffer (_zip, copy->c_str(), copy->length(), 0);
+	if (!source) {
+		throw runtime_error ("could not create ZIP source");
+	}
+
+	if (zip_add(_zip, name.c_str(), source) == -1) {
+		throw runtime_error ("failed to add data to ZIP archive");
+	}
+}
+
+
+void
+Zipper::close ()
+{
+	if (zip_close(_zip) == -1) {
+		throw runtime_error ("failed to close ZIP archive");
+	}
+	_zip = 0;
+}
+
+
+Zipper::~Zipper ()
+{
+	if (_zip) {
+		zip_close(_zip);
+	}
+}