Add option to change logging level, and default to Info

I'm not having to debug issues from people's log files any more...

Fixes #370

src/SyncTrayzor/Bootstrapper.cs

@@ -100,7 +100,7 @@ protected override void Configure()
 
             var logger = LogManager.GetCurrentClassLogger();
             var assembly = this.Container.Get<IAssemblyProvider>();
-            logger.Debug("SyncTrazor version {0} ({1}) started at {2} (.NET version: {3})", assembly.FullVersion, assembly.ProcessorArchitecture, assembly.Location, DotNetVersionFinder.FindDotNetVersion());
+            logger.Info("SyncTrazor version {0} ({1}) started at {2} (.NET version: {3})", assembly.FullVersion, assembly.ProcessorArchitecture, assembly.Location, DotNetVersionFinder.FindDotNetVersion());
 
             // This needs to happen before anything which might cause the unhandled exception stuff to be shown, as that wants to know
             // where to find the log file.

src/SyncTrayzor/Pages/Settings/SettingsView.xaml

@@ -213,11 +213,17 @@
             <TabItem Header="{l:Loc SettingsView_Tab_Logging}">
                 <DockPanel>
                     <GroupBox DockPanel.Dock="Bottom" Header="{l:Loc SettingsView_Section_SyncTrayzor}">
-                        <Button DockPanel.Dock="Top" Margin="0,10,0,0" Padding="5,0"
+                        <DockPanel>
+                            <StackPanel DockPanel.Dock="Top" Orientation="Horizontal">
+                                <Label Content="{l:Loc SettingsView_Logging_LogLevel}"/>.
+                                <ComboBox ItemsSource="{Binding LogLevels}" SelectedValuePath="Value" SelectedValue="{Binding SelectedLogLevel.Value}"/>
+                            </StackPanel>
+                            <Button DockPanel.Dock="Top" Margin="0,10,0,0" Padding="5,0"
                                     Command="{s:Action ShowSyncTrayzorLogFile}"
                                     HorizontalAlignment="Left"
                                     Style="{StaticResource DialogButton}"
                                     Content="{l:Loc SettingsView_Logging_ShowSyncTrayzorLog}"/>
+                        </DockPanel>
                     </GroupBox>
 
                     <GroupBox Header="{l:Loc SettingsView_Section_Syncthing}">

src/SyncTrayzor/Pages/Settings/SettingsViewModel.cs

@@ -94,6 +94,9 @@ public class SettingsViewModel : Screen
 
         public BindableCollection<DebugFacilitySetting> SyncthingDebugFacilities { get; } = new BindableCollection<DebugFacilitySetting>();
 
+        public BindableCollection<LabelledValue<LogLevel>> LogLevels { get; }
+        public SettingItem<LogLevel> SelectedLogLevel { get; set; }
+
         public SettingsViewModel(
             IConfigurationProvider configurationProvider,
             IAutostartProvider autostartProvider,
@@ -180,6 +183,22 @@ public SettingsViewModel(
             this.SyncthingDenyUpgrade = this.CreateBasicSettingItem(x => x.SyncthingDenyUpgrade);
             this.SyncthingDenyUpgrade.RequiresSyncthingRestart = true;
 
+            this.PriorityLevels = new BindableCollection<LabelledValue<SyncthingPriorityLevel>>()
+            {
+                LabelledValue.Create(Resources.SettingsView_Syncthing_ProcessPriority_AboveNormal, Services.Config.SyncthingPriorityLevel.AboveNormal),
+                LabelledValue.Create(Resources.SettingsView_Syncthing_ProcessPriority_Normal, Services.Config.SyncthingPriorityLevel.Normal),
+                LabelledValue.Create(Resources.SettingsView_Syncthing_ProcessPriority_BelowNormal, Services.Config.SyncthingPriorityLevel.BelowNormal),
+                LabelledValue.Create(Resources.SettingsView_Syncthing_ProcessPriority_Idle, Services.Config.SyncthingPriorityLevel.Idle),
+            };
+
+            this.LogLevels = new BindableCollection<LabelledValue<LogLevel>>()
+            {
+                LabelledValue.Create(Resources.SettingsView_Logging_LogLevel_Info, LogLevel.Info),
+                LabelledValue.Create(Resources.SettingsView_Logging_LogLevel_Debug, LogLevel.Debug),
+                LabelledValue.Create(Resources.SettingsView_Logging_LogLevel_Trace, LogLevel.Trace),
+            };
+            this.SelectedLogLevel = this.CreateBasicSettingItem(x => x.LogLevel);
+
             var configuration = this.configurationProvider.Load();
 
             foreach (var settingItem in this.settings)
@@ -193,14 +212,6 @@ public SettingsViewModel(
                 folderSetting.Bind(s => s.IsNotified, (o, e) => this.UpdateAreAllFoldersNotified());
             }
 
-            this.PriorityLevels = new BindableCollection<LabelledValue<SyncthingPriorityLevel>>()
-            {
-                LabelledValue.Create(Resources.SettingsView_Syncthing_ProcessPriority_AboveNormal, Services.Config.SyncthingPriorityLevel.AboveNormal),
-                LabelledValue.Create(Resources.SettingsView_Syncthing_ProcessPriority_Normal, Services.Config.SyncthingPriorityLevel.Normal),
-                LabelledValue.Create(Resources.SettingsView_Syncthing_ProcessPriority_BelowNormal, Services.Config.SyncthingPriorityLevel.BelowNormal),
-                LabelledValue.Create(Resources.SettingsView_Syncthing_ProcessPriority_Idle, Services.Config.SyncthingPriorityLevel.Idle),
-            };
-
             this.Bind(s => s.AreAllFoldersNotified, (o, e) =>
             {
                 if (this.updatingFolderSettings)

src/SyncTrayzor/Properties/Resources.resx

@@ -964,4 +964,20 @@ Please donate to my charity fundraising campaign.</value>
     <value>Donate</value>
     <comment>Shown in the top right of the menu bar, if the user hasn't yet donated</comment>
   </data>
+  <data name="SettingsView_Logging_LogLevel" xml:space="preserve">
+    <value>Log Level:</value>
+    <comment>Label shown before SyncTrayzor logging level ComboBox</comment>
+  </data>
+  <data name="SettingsView_Logging_LogLevel_Debug" xml:space="preserve">
+    <value>Debug</value>
+    <comment>Name for the Debug log level (which provides lots of debug info)</comment>
+  </data>
+  <data name="SettingsView_Logging_LogLevel_Info" xml:space="preserve">
+    <value>Info (Default)</value>
+    <comment>Name for the Info log level</comment>
+  </data>
+  <data name="SettingsView_Logging_LogLevel_Trace" xml:space="preserve">
+    <value>Trace</value>
+    <comment>Name for the Trace log level (which provides the most debug info)</comment>
+  </data>
 </root>

src/SyncTrayzor/Services/Config/Configuration.cs

@@ -74,6 +74,7 @@ public string LatestNotifiedVersionRaw
         public IconAnimationMode IconAnimationMode { get; set; }
         public string OpenFolderCommand { get; set; }
         public string ShowFileInFolderCommand { get; set; }
+        public LogLevel LogLevel { get; set; }
 
         public Configuration()
         {
@@ -113,6 +114,7 @@ public Configuration()
             this.IconAnimationMode = IconAnimationMode.DataTransferring;
             this.OpenFolderCommand = "explorer.exe \"{0}\"";
             this.ShowFileInFolderCommand = "explorer.exe /select, \"{0}\"";
+            this.LogLevel = LogLevel.Info;
         }
 
         public Configuration(Configuration other)
@@ -151,6 +153,7 @@ public Configuration(Configuration other)
             this.IconAnimationMode = other.IconAnimationMode;
             this.OpenFolderCommand = other.OpenFolderCommand;
             this.ShowFileInFolderCommand = other.ShowFileInFolderCommand;
+            this.LogLevel = other.LogLevel;
         }
 
         public override string ToString()
@@ -169,7 +172,7 @@ public override string ToString()
                 $"EnableConflictFileMonitoring={this.EnableConflictFileMonitoring} SyncthingDebugFacilities=[{String.Join(",", this.SyncthingDebugFacilities)}] "+
                 $"ConflictResolverDeletesToRecycleBin={this.ConflictResolverDeletesToRecycleBin} PauseDevicesOnMeteredNetworks={this.PauseDevicesOnMeteredNetworks} "+
                 $"HaveDonated={this.HaveDonated} IconAnimationMode={this.IconAnimationMode} OpenFolderCommand={this.OpenFolderCommand} ShowFileInFolderCommand={this.ShowFileInFolderCommand}" +
-                $">";
+                $"LogLevel={this.LogLevel}>";
         }
     }
 }

src/SyncTrayzor/Services/Config/LogLevel.cs

@@ -0,0 +1,15 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace SyncTrayzor.Services.Config
+{
+    public enum LogLevel
+    {
+        Info,
+        Debug,
+        Trace,
+    }
+}

src/SyncTrayzor/Services/ConfigurationApplicator.cs

@@ -6,6 +6,7 @@
 using System;
 using System.Linq;
 using SyncTrayzor.Services.Metering;
+using System.Collections.Generic;
 
 namespace SyncTrayzor.Services
 {
@@ -116,6 +117,33 @@ private void ApplyNewConfiguration(Configuration configuration)
 
             this.alertsManager.EnableConflictedFileAlerts = configuration.EnableConflictFileMonitoring;
             this.alertsManager.EnableFailedTransferAlerts = configuration.EnableFailedTransferAlerts;
+
+            SetLogLevel(configuration);
+        }
+
+        private static readonly Dictionary<LogLevel, NLog.LogLevel> logLevelMapping = new Dictionary<Config.LogLevel, NLog.LogLevel>()
+        {
+            { LogLevel.Info, NLog.LogLevel.Info },
+            { LogLevel.Debug, NLog.LogLevel.Debug },
+            { LogLevel.Trace, NLog.LogLevel.Trace },
+        };
+
+        private static void SetLogLevel(Configuration configuration)
+        {
+            var logLevel = logLevelMapping[configuration.LogLevel];
+            var rules = NLog.LogManager.Configuration.LoggingRules;
+            var logFileRule = rules.FirstOrDefault(rule => rule.Targets.Any(target => target.Name == "logfile"));
+            if (logFileRule != null)
+            {
+                foreach (var level in NLog.LogLevel.AllLoggingLevels)
+                {
+                    if (level < logLevel)
+                        logFileRule.DisableLoggingForLevel(level);
+                    else
+                        logFileRule.EnableLoggingForLevel(level);
+                }
+                NLog.LogManager.ReconfigExistingLoggers();
+            }
         }
 
         private void OnDataLoaded(object sender, EventArgs e)

src/SyncTrayzor/SyncTrayzor.csproj

@@ -245,6 +245,7 @@
     <Compile Include="Services\Config\EnvironmentalVariableCollection.cs" />
     <Compile Include="Services\Config\FolderConfiguration.cs" />
     <Compile Include="Services\Config\IconAnimationMode.cs" />
+    <Compile Include="Services\Config\LogLevel.cs" />
     <Compile Include="Services\Config\SyncthingPriorityLevel.cs" />
     <Compile Include="Services\Config\SyncTrayzorVariant.cs" />
     <Compile Include="Services\Config\WindowPlacement.cs" />