From 98746b26c7e4c2d50eeb2d0a836a29cfe8149aa7 Mon Sep 17 00:00:00 2001
From: Hylke Bons <hylkebons@gmail.com>
Date: Wed, 11 Jan 2012 23:02:22 +0000
Subject: [PATCH] Write debug output to a log file. Closes #515

---
 SparkleLib/SparkleConfig.cs  | 16 ++++++++++++++--
 SparkleLib/SparkleHelpers.cs | 11 +++++++++--
 2 files changed, 23 insertions(+), 4 deletions(-)

diff --git a/SparkleLib/SparkleConfig.cs b/SparkleLib/SparkleConfig.cs
index f9f57548..77749156 100755
--- a/SparkleLib/SparkleConfig.cs
+++ b/SparkleLib/SparkleConfig.cs
@@ -29,8 +29,11 @@ namespace SparkleLib {
             Environment.GetFolderPath (Environment.SpecialFolder.ApplicationData),
                 "sparkleshare");
 
+        public bool DebugMode = true;
+
         public static SparkleConfig DefaultConfig = new SparkleConfig (ConfigPath, "config.xml");
         public string FullPath;
+        public string LogFilePath;
 
         public string HomePath {
             get {
@@ -38,7 +41,6 @@ namespace SparkleLib {
 		    }
         }
 
-
         public string FoldersPath {
             get {
                 if (GetConfigOption ("folders_path") != null)
@@ -57,7 +59,17 @@ namespace SparkleLib {
 
         public SparkleConfig (string config_path, string config_file_name)
         {
-            FullPath = System.IO.Path.Combine (config_path, config_file_name);
+            FullPath    = Path.Combine (config_path, config_file_name);
+            LogFilePath = Path.Combine (config_path, "debug.log");
+
+            if (File.Exists (LogFilePath)) {
+                try {
+                    File.Delete (LogFilePath);
+
+                } catch (Exception) {
+                    // Don't delete the debug.log if 'tail' is reading it
+                }
+            }
 
             if (!Directory.Exists (config_path)) {
                 Directory.CreateDirectory (config_path);
diff --git a/SparkleLib/SparkleHelpers.cs b/SparkleLib/SparkleHelpers.cs
index b2b1a459..eb6a662d 100755
--- a/SparkleLib/SparkleHelpers.cs
+++ b/SparkleLib/SparkleHelpers.cs
@@ -34,8 +34,15 @@ namespace SparkleLib {
                 if (!message.StartsWith ("["))
                     message = " " + message;
 
-                // TODO: Write to a log
-                Console.WriteLine (timestamp + " " + "[" + type + "]" + message);
+                string line = timestamp + " " + "[" + type + "]" + message;
+
+                if (SparkleConfig.DefaultConfig.DebugMode)
+                    Console.WriteLine (line);
+
+                File.AppendAllText (
+                    SparkleConfig.DefaultConfig.LogFilePath,
+                    line + Environment.NewLine
+                );
             }
         }