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src/pamac_config.vala

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+/*
+ *  pamac-vala
+ *
+ *  Copyright (C) 2014  Guillaume Benoit <guillaume@manjaro.org>
+ *
+ *  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 get of the GNU General Public License
+ *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+namespace Pamac {
+	public class Config: Object {
+		public uint64 refresh_period;
+		public bool enable_aur;
+		public bool recurse;
+		public string conf_path;
+
+		public Config (string path) {
+			this.conf_path = path;
+			// set default options
+			this.refresh_period = 4;
+			this.enable_aur = false;
+			this.recurse = false;
+			// parse conf file
+			this.parse_include_file (conf_path);
+		}
+
+		public void parse_include_file (string path) {
+			var file = GLib.File.new_for_path (path);
+			if (file.query_exists () == false)
+				GLib.stderr.printf ("File '%s' doesn't exist.\n", file.get_path ());
+			else {
+				try {
+					// Open file for reading and wrap returned FileInputStream into a
+					// DataInputStream, so we can read line by line
+					var dis = new DataInputStream (file.read ());
+					string line;
+					// Read lines until end of file (null) is reached
+					while ((line = dis.read_line (null)) != null) {
+						line = line.strip ();
+						if (line.length == 0) continue;
+						if (line[0] == '#') continue;
+						string[] splitted = line.split ("=");
+						string _key = splitted[0].strip ();
+						string _value = null;
+						if (splitted[1] != null)
+							_value = splitted[1].strip ();
+						if (_key == "RefreshPeriod")
+							this.refresh_period = uint64.parse (_value);
+						else if (_key == "EnableAUR")
+							this.enable_aur = true;
+						else if (_key == "RemoveUnrequiredDeps")
+							this.recurse = true;
+					}
+				} catch (GLib.Error e) {
+					GLib.stderr.printf("%s\n", e.message);
+				}
+			}
+		}
+
+		public void write (HashTable<string,string> new_conf) {
+			var file = GLib.File.new_for_path (this.conf_path);
+			if (file.query_exists () == false)
+				GLib.stderr.printf ("File '%s' doesn't exist.\n", file.get_path ());
+			else {
+				try {
+					// Open file for reading and wrap returned FileInputStream into a
+					// DataInputStream, so we can read line by line
+					var dis = new DataInputStream (file.read ());
+					string line;
+					string[] data = {};
+					// Read lines until end of file (null) is reached
+					while ((line = dis.read_line (null)) != null) {
+						if (line.contains ("RefreshPeriod")) {
+							if (new_conf.contains ("RefreshPeriod")) {
+								string _value = new_conf.get ("RefreshPeriod");
+								data += "RefreshPeriod = %s\n".printf (_value);
+								this.refresh_period = uint64.parse (_value);
+							} else
+								data += line + "\n";
+						} else if (line.contains ("EnableAUR")) {
+							if (new_conf.contains ("EnableAUR")) {
+								bool _value = bool.parse (new_conf.get ("EnableAUR"));
+								if (_value == true)
+									data += "EnableAUR\n";
+								else
+									data += "#EnableAUR\n";
+								this.enable_aur = _value;
+							} else
+								data += line + "\n";
+						} else if (line.contains ("RemoveUnrequiredDeps")) {
+							if (new_conf.contains ("RemoveUnrequiredDeps")) {
+								bool _value = bool.parse (new_conf.get ("RemoveUnrequiredDeps"));
+								if (_value == true)
+									data += "RemoveUnrequiredDeps\n";
+								else
+									data += "#RemoveUnrequiredDeps\n";
+								this.enable_aur = _value;
+							} else
+								data += line + "\n";
+						} else
+							data += line + "\n";
+					}
+					// delete the file before rewrite it
+					file.delete ();
+					// creating a DataOutputStream to the file
+					var dos = new DataOutputStream (file.create (FileCreateFlags.REPLACE_DESTINATION));
+					foreach (string new_line in data) {
+						// writing a short string to the stream
+						dos.put_string (new_line);
+					}
+				} catch (GLib.Error e) {
+					GLib.stderr.printf("%s\n", e.message);
+				}
+			}
+		}
+
+		public void reload () {
+			this.enable_aur = false;
+			this.recurse = false;
+			this.parse_include_file (this.conf_path);
+		}
+	}
+}