1 files changed, 139 insertions, 0 deletions
diff --git a/src/utilities/archiveWriter.vala b/src/utilities/archiveWriter.vala
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@@ -0,0 +1,139 @@
+/////////////////////////////////////////////////////////////////////////
+// Copyright (c) 2011-2015 by Simon Schneegans
+//
+// 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 3 of the License, 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, see <http://www.gnu.org/licenses/>.
+/////////////////////////////////////////////////////////////////////////
+
+namespace GnomePie {
+
+/////////////////////////////////////////////////////////////////////////
+/// This class can be used to pack a directory of files recursively into
+/// a *.tar.gz archive.
+/////////////////////////////////////////////////////////////////////////
+
+public class ArchiveWriter : GLib.Object {
+
+    private Archive.Write archive;
+
+    /////////////////////////////////////////////////////////////////////
+    /// Constructs a new ArchiveWriter
+    /////////////////////////////////////////////////////////////////////
+
+    public ArchiveWriter() {
+        this.archive = new Archive.Write();
+        this.archive.add_filter_gzip();
+        this.archive.set_format_pax_restricted();
+
+    }
+
+    /////////////////////////////////////////////////////////////////////
+    /// Call this once after you created the ArchiveWriter. Pass the
+    /// path to the target archive location.
+    /////////////////////////////////////////////////////////////////////
+
+    public bool open(string path) {
+        return this.archive.open_filename(path) == Archive.Result.OK;
+    }
+
+    /////////////////////////////////////////////////////////////////////
+    /// Adds all files of a given directory to the previously opened
+    /// archive.
+    /////////////////////////////////////////////////////////////////////
+
+    public bool add(string directory) {
+        return add_directory(directory, directory);
+    }
+
+    /////////////////////////////////////////////////////////////////////
+    /// When all files have been added, close the directory again.
+    /////////////////////////////////////////////////////////////////////
+
+    public void close() {
+        this.archive.close();
+    }
+
+    /////////////////////////////////////////////////////////////////////
+    /// Private helper function which traveres a directory recursively.
+    /////////////////////////////////////////////////////////////////////
+
+    private bool add_directory(string directory, string relative_to) {
+        try {
+            var d = Dir.open(directory);
+            string name;
+            while ((name = d.read_name()) != null) {
+                string path = Path.build_filename(directory, name);
+                if (FileUtils.test(path, FileTest.IS_DIR)) {
+                    if (!add_directory(path, relative_to)) {
+                        return false;
+                    }
+
+                } else if (FileUtils.test(path, FileTest.IS_REGULAR)) {
+                    if (!add_file(path, relative_to)) {
+                        return false;
+                    }
+
+                } else {
+                    warning("Packaging theme: Ignoring irregular file " + name);
+                }
+            }
+        } catch (Error e) {
+            warning (e.message);
+            return false;
+        }
+
+        return true;
+
+    }
+
+    /////////////////////////////////////////////////////////////////////
+    /// Private halper which adds a file to the archive.
+    /////////////////////////////////////////////////////////////////////
+
+    public bool add_file(string path, string relative_to) {
+        var entry = new Archive.Entry();
+        entry.set_pathname(path.replace(relative_to, ""));
+
+        Posix.Stat st;
+        Posix.stat(path, out st);
+        entry.copy_stat(st);
+        entry.set_size(st.st_size);
+
+        if (this.archive.write_header(entry) == Archive.Result.OK) {
+            try {
+                var reader = File.new_for_path(path).read();
+                uint8 buffer[4096];
+
+                var len = reader.read(buffer);
+
+                while(len > 0) {
+                    this.archive.write_data(buffer, len);
+                    len = reader.read(buffer);
+                }
+
+                this.archive.finish_entry();
+            } catch (Error e) {
+                warning (e.message);
+                return false;
+            }
+
+        } else {
+            warning("Failed to include file " + path + " into archive");
+            return false;
+        }
+
+        return true;
+    }
+}
+
+}