Merge pull request #1489 from tgstation/LimitSystemMessageChannels

Add option for selecting channels for system messages

.dockerignore

@@ -21,6 +21,8 @@ build/**
 !build/stylecop.json
 !build/Version.props
 !build/ControlPanelVersion.props
+!build/Common.props
+!build/NugetCommon.props
 docs
 src/DMAPI
 src/Tgstation.Server.Host/ClientApp

.github/CONTRIBUTING.md

@@ -173,6 +173,8 @@ Whenever you make a change to a model schema that must be reflected in the datab
 
 We have a script to do this.
 
+Warning: You may need to temporarily set valid MySql credentials in [MySqlDesignTimeDbContextFactory.cs](../src/Tgstation.Server.Host/Database/Design/MySqlDesignTimeDbContextFactory.cs) for migrations to generate properly. I have no idea why. Be careful not to commit the change.
+
 1. Run `build/GenerateMigrations.sh NameOfMigration` from the project root.
 1. You should now have MY/MS/SL/PG migration files generated in `/src/Tgstation.Server.Host/Models/Migrations`. Fix compiler warnings in the generated files. Ensure all classes are in the Tgstation.Server.Host.Database.Migrations namespace.
 1. Manually review what each migration does.

build/Common.props

@@ -0,0 +1,10 @@
+<Project xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <Import Project="Version.props" />
+
+  <PropertyGroup>
+    <TgsNetVersion>net6.0</TgsNetVersion>
+    <TgsNugetNetVersion>netstandard2.0</TgsNugetNetVersion>
+    <LangVersion>latest</LangVersion>
+    <DebugType>Full</DebugType>
+  </PropertyGroup>
+</Project>

build/Dockerfile

@@ -25,6 +25,8 @@ RUN npm install -g yarn
 # Build web control panel
 WORKDIR /repo/build
 
+COPY build/Common.props Common.props
+COPY build/NugetCommon.props NugetCommon.props
 COPY build/Version.props Version.props
 COPY build/ControlPanelVersion.props ControlPanelVersion.props
 

build/NugetCommon.props

@@ -0,0 +1,23 @@
+<Project xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <Import Project="Common.props" />
+
+  <PropertyGroup>
+    <GeneratePackageOnBuild>true</GeneratePackageOnBuild>
+    <Authors>Cyberboss/Dominion</Authors>
+    <Company>/tg/station 13</Company>
+    <PackageProjectUrl>https://tgstation.github.io/tgstation-server</PackageProjectUrl>
+    <PackageLicenseFile>LICENSE</PackageLicenseFile>
+    <PackageIcon>tgs.png</PackageIcon>
+    <RepositoryType>Git</RepositoryType>
+    <RepositoryUrl>https://github.com/tgstation/tgstation-server</RepositoryUrl>
+    <Copyright>2018-2023</Copyright>
+    <IncludeSymbols>true</IncludeSymbols>
+    <SymbolPackageFormat>snupkg</SymbolPackageFormat>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <None Include="../../LICENSE" Pack="true" PackagePath="" />
+    <None Include="../../build/tgs.png" Pack="true" PackagePath="" />
+  </ItemGroup>
+</Project>

build/Version.props

@@ -13,6 +13,5 @@
     <TgsHostWatchdogVersion>1.2.2</TgsHostWatchdogVersion>
     <TgsContainerScriptVersion>1.2.1</TgsContainerScriptVersion>
     <TgsMigratorVersion>1.0.1</TgsMigratorVersion>
-    <TgsNetVersion>net6.0</TgsNetVersion>
   </PropertyGroup>
 </Project>

src/Tgstation.Server.Api/Models/Internal/ChatChannelBase.cs

@@ -25,6 +25,12 @@ namespace Tgstation.Server.Api.Models.Internal
 		[Required]
 		public bool? IsUpdatesChannel { get; set; }
 
+		/// <summary>
+		/// If the <see cref="ChatChannel"/> received system messages.
+		/// </summary>
+		[Required]
+		public bool? IsSystemChannel { get; set; }
+
 		/// <summary>
 		/// A custom tag users can define to group channels together.
 		/// </summary>

src/Tgstation.Server.Api/Tgstation.Server.Api.csproj

@@ -1,29 +1,15 @@
 <Project Sdk="Microsoft.NET.Sdk">
-  <Import Project="../../build/Version.props" />
+  <Import Project="../../build/NugetCommon.props" />
 
   <PropertyGroup>
-    <TargetFramework>netstandard2.0</TargetFramework>
-    <DebugType>Full</DebugType>
+    <TargetFramework>$(TgsNugetNetVersion)</TargetFramework>
     <Version>$(TgsApiLibraryVersion)</Version>
-    <GeneratePackageOnBuild>true</GeneratePackageOnBuild>
-    <Authors>Cyberboss/Dominion</Authors>
-    <Company>/tg/station 13</Company>
     <Description>API definitions for tgstation-server.</Description>
-    <PackageProjectUrl>https://tgstation.github.io/tgstation-server</PackageProjectUrl>
-    <PackageLicenseFile>LICENSE</PackageLicenseFile>
-    <PackageIcon>tgs.png</PackageIcon>
-    <RepositoryType>Git</RepositoryType>
-    <RepositoryUrl>https://github.com/tgstation/tgstation-server</RepositoryUrl>
-    <Copyright>2018-2023</Copyright>
     <PackageTags>json web api tgstation-server tgstation ss13 byond http</PackageTags>
     <PackageReleaseNotes>Minor documentation correction.</PackageReleaseNotes>
-    <IncludeSymbols>true</IncludeSymbols>
-    <SymbolPackageFormat>snupkg</SymbolPackageFormat>
-    <CodeAnalysisRuleSet>../../build/analyzers.ruleset</CodeAnalysisRuleSet>
-    <LangVersion>latest</LangVersion>
-    <Nullable>enable</Nullable>
-    <DocumentationFile>bin\$(Configuration)\netstandard2.0\Tgstation.Server.Api.xml</DocumentationFile>
     <EnableNETAnalyzers>true</EnableNETAnalyzers>
+    <CodeAnalysisRuleSet>../../build/analyzers.ruleset</CodeAnalysisRuleSet>
+    <DocumentationFile>bin/$(Configuration)/$(TargetFramework)/$(AssemblyName).xml</DocumentationFile>
     <NoWarn>CA1028</NoWarn>
   </PropertyGroup>
 
@@ -61,7 +47,5 @@
 
   <ItemGroup>
     <AdditionalFiles Include="../../build/stylecop.json" />
-    <None Include="../../LICENSE" Pack="true" PackagePath="" />
-    <None Include="../../build/tgs.png" Pack="true" PackagePath="" />
   </ItemGroup>
 </Project>

src/Tgstation.Server.Client/Tgstation.Server.Client.csproj

@@ -1,29 +1,15 @@
 <Project Sdk="Microsoft.NET.Sdk">
-  <Import Project="../../build/Version.props" />
+  <Import Project="../../build/NugetCommon.props" />
 
   <PropertyGroup>
-    <TargetFramework>netstandard2.0</TargetFramework>
-    <DebugType>Full</DebugType>
+    <TargetFramework>$(TgsNugetNetVersion)</TargetFramework>
     <Version>$(TgsClientVersion)</Version>
-    <GeneratePackageOnBuild>true</GeneratePackageOnBuild>
-    <Authors>Cyberboss/Dominion</Authors>
-    <Company>/tg/station 13</Company>
     <Description>Client library for tgstation-server.</Description>
-    <PackageProjectUrl>https://tgstation.github.io/tgstation-server</PackageProjectUrl>
-    <PackageLicenseFile>LICENSE</PackageLicenseFile>
-    <PackageIcon>tgs.png</PackageIcon>
-    <RepositoryType>Git</RepositoryType>
-    <RepositoryUrl>https://github.com/tgstation/tgstation-server</RepositoryUrl>
-    <Copyright>2018-2023</Copyright>
     <PackageTags>json web api tgstation-server tgstation ss13 byond client http</PackageTags>
     <PackageReleaseNotes>Added missing Dispose() call to the StringContents for requests with bodies and added missing ConfigureAwait(false) to async call.</PackageReleaseNotes>
-    <IncludeSymbols>true</IncludeSymbols>
-    <SymbolPackageFormat>snupkg</SymbolPackageFormat>
-    <CodeAnalysisRuleSet>../../build/analyzers.ruleset</CodeAnalysisRuleSet>
-    <LangVersion>latest</LangVersion>
-    <Nullable>enable</Nullable>
-    <DocumentationFile>bin\$(Configuration)\netstandard2.0\Tgstation.Server.Client.xml</DocumentationFile>
     <EnableNETAnalyzers>true</EnableNETAnalyzers>
+    <CodeAnalysisRuleSet>../../build/analyzers.ruleset</CodeAnalysisRuleSet>
+    <DocumentationFile>bin/$(Configuration)/$(TargetFramework)/$(AssemblyName).xml</DocumentationFile>
   </PropertyGroup>
 
   <PropertyGroup Condition="'$(Configuration)'=='Release'">
@@ -46,7 +32,5 @@
 
   <ItemGroup>
     <AdditionalFiles Include="../../build/stylecop.json" />
-    <None Include="../../LICENSE" Pack="true" PackagePath="" />
-    <None Include="../../build/tgs.png" Pack="true" PackagePath="" />
   </ItemGroup>
 </Project>

src/Tgstation.Server.Common/Tgstation.Server.Common.csproj

@@ -1,29 +1,15 @@
 <Project Sdk="Microsoft.NET.Sdk">
-  <Import Project="../../build/Version.props" />
+  <Import Project="../../build/NugetCommon.props" />
 
   <PropertyGroup>
-    <TargetFramework>netstandard2.0</TargetFramework>
-    <DebugType>Full</DebugType>
+    <TargetFramework>$(TgsNugetNetVersion)</TargetFramework>
     <Version>$(TgsCoreVersion)</Version>
-    <GeneratePackageOnBuild>true</GeneratePackageOnBuild>
-    <Authors>Cyberboss/Dominion</Authors>
-    <Company>/tg/station 13</Company>
     <Description>Common functions for tgstation-server.</Description>
-    <PackageProjectUrl>https://tgstation.github.io/tgstation-server</PackageProjectUrl>
-    <PackageLicenseFile>LICENSE</PackageLicenseFile>
-    <PackageIcon>tgs.png</PackageIcon>
-    <RepositoryType>Git</RepositoryType>
-    <RepositoryUrl>https://github.com/tgstation/tgstation-server</RepositoryUrl>
-    <Copyright>2018-2023</Copyright>
     <PackageTags>web tgstation-server tgstation ss13 byond client http</PackageTags>
     <PackageReleaseNotes>Initial release.</PackageReleaseNotes>
-    <IncludeSymbols>true</IncludeSymbols>
-    <SymbolPackageFormat>snupkg</SymbolPackageFormat>
-    <CodeAnalysisRuleSet>../../build/analyzers.ruleset</CodeAnalysisRuleSet>
-    <LangVersion>latest</LangVersion>
-    <Nullable>enable</Nullable>
-    <DocumentationFile>bin\$(Configuration)\netstandard2.0\Tgstation.Server.Client.xml</DocumentationFile>
     <EnableNETAnalyzers>true</EnableNETAnalyzers>
+    <CodeAnalysisRuleSet>../../build/analyzers.ruleset</CodeAnalysisRuleSet>
+    <DocumentationFile>bin/$(Configuration)/$(TargetFramework)/$(AssemblyName).xml</DocumentationFile>
   </PropertyGroup>
 
   <PropertyGroup Condition="'$(Configuration)'=='Release'">
@@ -41,7 +27,5 @@
 
   <ItemGroup>
     <AdditionalFiles Include="../../build/stylecop.json" />
-    <None Include="../../LICENSE" Pack="true" PackagePath="" />
-    <None Include="../../build/tgs.png" Pack="true" PackagePath="" />
   </ItemGroup>
 </Project>

src/Tgstation.Server.Host.Common/Tgstation.Server.Host.Common.csproj

@@ -1,15 +1,13 @@
 <Project Sdk="Microsoft.NET.Sdk">
-  <Import Project="../../build/Version.props" />
+  <Import Project="../../build/Common.props" />
 
   <PropertyGroup>
     <TargetFramework>netstandard2.0</TargetFramework>
-    <DebugType>Full</DebugType>
     <Version>$(TgsCoreVersion)</Version>
-    <CodeAnalysisRuleSet>../../build/analyzers.ruleset</CodeAnalysisRuleSet>
-    <LangVersion>latest</LangVersion>
     <IsPackable>false</IsPackable>
     <EnableNETAnalyzers>true</EnableNETAnalyzers>
-    <DocumentationFile>bin\$(Configuration)\netstandard2.0\Tgstation.Server.Host.Shared.xml</DocumentationFile>
+    <CodeAnalysisRuleSet>../../build/analyzers.ruleset</CodeAnalysisRuleSet>
+    <DocumentationFile>bin/$(Configuration)/$(TargetFramework)/$(AssemblyName).xml</DocumentationFile>
   </PropertyGroup>
 
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|AnyCPU'">

src/Tgstation.Server.Host.Console/Tgstation.Server.Host.Console.csproj

@@ -1,15 +1,14 @@
 <Project Sdk="Microsoft.NET.Sdk">
-  <Import Project="../../build/Version.props" />
+  <Import Project="../../build/Common.props" />
 
   <PropertyGroup>
     <OutputType>Exe</OutputType>
-    <TargetFramework>net6.0</TargetFramework>
-    <DebugType>Full</DebugType>
+    <TargetFramework>$(TgsNetVersion)</TargetFramework>
     <Version>$(TgsCoreVersion)</Version>
-    <CodeAnalysisRuleSet>../../build/analyzers.ruleset</CodeAnalysisRuleSet>
-    <LangVersion>latest</LangVersion>
     <IsPackable>false</IsPackable>
     <EnableNETAnalyzers>true</EnableNETAnalyzers>
+    <CodeAnalysisRuleSet>../../build/analyzers.ruleset</CodeAnalysisRuleSet>
+    <DocumentationFile>bin/$(Configuration)/$(TargetFramework)/$(AssemblyName).xml</DocumentationFile>
   </PropertyGroup>
 
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|AnyCPU'">

src/Tgstation.Server.Host.Service/Tgstation.Server.Host.Service.csproj

@@ -1,16 +1,14 @@
 <Project Sdk="Microsoft.NET.Sdk">
-  <Import Project="../../build/Version.props" />
+  <Import Project="../../build/Common.props" />
 
   <PropertyGroup>
     <OutputType>Exe</OutputType>
     <TargetFramework>net472</TargetFramework>
     <RuntimeIdentifier>win</RuntimeIdentifier>
-    <DebugType>Full</DebugType>
     <Version>$(TgsCoreVersion)</Version>
-    <CodeAnalysisRuleSet>../../build/analyzers.ruleset</CodeAnalysisRuleSet>
-    <LangVersion>7.3</LangVersion>
-    <DocumentationFile>bin\Debug\Tgstation.Server.Host.Console.xml</DocumentationFile>
     <EnableNETAnalyzers>true</EnableNETAnalyzers>
+    <CodeAnalysisRuleSet>../../build/analyzers.ruleset</CodeAnalysisRuleSet>
+    <DocumentationFile>bin/$(Configuration)/$(TargetFramework)/$(RuntimeIdentifier)/$(AssemblyName).xml</DocumentationFile>
   </PropertyGroup>
 
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|AnyCPU'">

src/Tgstation.Server.Host.Watchdog/Tgstation.Server.Host.Watchdog.csproj

@@ -1,16 +1,15 @@
 <Project Sdk="Microsoft.NET.Sdk">
-  <Import Project="../../build/Version.props" />
+  <Import Project="../../build/Common.props" />
 
   <PropertyGroup>
     <TargetFramework>netstandard2.0</TargetFramework>
     <DebugType>Full</DebugType>
     <AddSyntheticProjectReferencesForSolutionDependencies>false</AddSyntheticProjectReferencesForSolutionDependencies>
     <Version>$(TgsHostWatchdogVersion)</Version>
-    <CodeAnalysisRuleSet>../../build/analyzers.ruleset</CodeAnalysisRuleSet>
-    <LangVersion>latest</LangVersion>
     <IsPackable>false</IsPackable>
     <EnableNETAnalyzers>true</EnableNETAnalyzers>
-    <DocumentationFile>bin\$(Configuration)\netstandard2.0\Tgstation.Server.Host.Watchdog.xml</DocumentationFile>
+    <CodeAnalysisRuleSet>../../build/analyzers.ruleset</CodeAnalysisRuleSet>
+    <DocumentationFile>bin/$(Configuration)/$(TargetFramework)/$(AssemblyName).xml</DocumentationFile>
   </PropertyGroup>
 
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|AnyCPU'">

src/Tgstation.Server.Host/.config/dotnet-tools.json

@@ -3,7 +3,7 @@
   "isRoot": true,
   "tools": {
     "dotnet-ef": {
-      "version": "6.0.15",
+      "version": "6.0.16",
       "commands": [
         "dotnet-ef"
       ]

src/Tgstation.Server.Host/Components/Chat/ChannelMapping.cs

@@ -30,6 +30,11 @@
 		/// </summary>
 		public bool IsAdminChannel { get; set; }
 
+		/// <summary>
+		/// If the <see cref="Channel"/> is a system messages channel.
+		/// </summary>
+		public bool IsSystemChannel { get; set; }
+
 		/// <summary>
 		/// The <see cref="ChannelRepresentation"/> with the mapped Id.
 		/// </summary>

src/Tgstation.Server.Host/Components/Chat/ChatManager.cs

@@ -207,6 +207,7 @@ namespace Tgstation.Server.Host.Components.Chat
 								IrcChannel = apiModel.IrcChannel,
 								IsAdminChannel = apiModel.IsAdminChannel,
 								IsUpdatesChannel = apiModel.IsUpdatesChannel,
+								IsSystemChannel = apiModel.IsSystemChannel,
 								IsWatchdogChannel = apiModel.IsWatchdogChannel,
 								Tag = apiModel.Tag,
 							})
@@ -220,6 +221,7 @@ namespace Tgstation.Server.Host.Components.Chat
 							IsWatchdogChannel = kvp.Key.IsWatchdogChannel == true,
 							IsUpdatesChannel = kvp.Key.IsUpdatesChannel == true,
 							IsAdminChannel = kvp.Key.IsAdminChannel == true,
+							IsSystemChannel = kvp.Key.IsSystemChannel == true,
 							ProviderChannelId = channelRepresentation.RealId,
 							ProviderId = connectionId,
 							Channel = channelRepresentation,
@@ -514,7 +516,7 @@ namespace Tgstation.Server.Host.Components.Chat
 			List<ulong> wdChannels;
 			lock (mappedChannels) // so it doesn't change while we're using it
 				wdChannels = mappedChannels
-					.Where(x => !x.Value.Channel.IsPrivateChannel)
+					.Where(x => !x.Value.IsSystemChannel)
 					.Select(x => x.Key)
 					.ToList();
 

src/Tgstation.Server.Host/Components/Session/TopicClientFactory.cs

@@ -19,7 +19,12 @@ namespace Tgstation.Server.Host.Components.Session
 		/// <param name="logger">The value of <see cref="logger"/>.</param>
 		public TopicClientFactory(ILogger<TopicClient> logger)
 		{
-			this.logger = logger ?? throw new ArgumentNullException(nameof(logger));
+			if (logger == null)
+				throw new ArgumentNullException(nameof(logger));
+
+			// Don't want the debug logs Topic client spits out either, they're too verbose
+			if (logger.IsEnabled(LogLevel.Trace))
+				this.logger = logger;
 		}
 
 		/// <inheritdoc />

src/Tgstation.Server.Host/Components/Watchdog/WatchdogBase.cs

@@ -387,8 +387,7 @@ namespace Tgstation.Server.Host.Components.Watchdog
 					using (await SemaphoreSlimContext.Lock(synchronizationSemaphore, ct))
 						await LaunchNoLock(true, true, true, reattachInfo, ct);
 				},
-				cancellationToken)
-				;
+				cancellationToken);
 		}
 
 		/// <inheritdoc />

src/Tgstation.Server.Host/Controllers/ChatController.cs

@@ -71,6 +71,7 @@ namespace Tgstation.Server.Host.Controllers
 				IsAdminChannel = api.IsAdminChannel ?? false,
 				IsWatchdogChannel = api.IsWatchdogChannel ?? false,
 				IsUpdatesChannel = api.IsUpdatesChannel ?? false,
+				IsSystemChannel = api.IsSystemChannel ?? false,
 				Tag = api.Tag,
 			};
 

src/Tgstation.Server.Host/Database/DatabaseContext.cs

@@ -379,22 +379,22 @@ namespace Tgstation.Server.Host.Database
 		/// <summary>
 		/// Used by unit tests to remind us to setup the correct MSSQL migration downgrades.
 		/// </summary>
-		internal static readonly Type MSLatestMigration = typeof(MSAddReattachInfoInitialCompileJob);
+		internal static readonly Type MSLatestMigration = typeof(MSAddSystemChannels);
 
 		/// <summary>
 		/// Used by unit tests to remind us to setup the correct MYSQL migration downgrades.
 		/// </summary>
-		internal static readonly Type MYLatestMigration = typeof(MYAddReattachInfoInitialCompileJob);
+		internal static readonly Type MYLatestMigration = typeof(MYAddSystemChannels);
 
 		/// <summary>
 		/// Used by unit tests to remind us to setup the correct PostgresSQL migration downgrades.
 		/// </summary>
-		internal static readonly Type PGLatestMigration = typeof(PGAddReattachInfoInitialCompileJob);
+		internal static readonly Type PGLatestMigration = typeof(PGAddSystemChannels);
 
 		/// <summary>
 		/// Used by unit tests to remind us to setup the correct SQLite migration downgrades.
 		/// </summary>
-		internal static readonly Type SLLatestMigration = typeof(SLAddReattachInfoInitialCompileJob);
+		internal static readonly Type SLLatestMigration = typeof(SLAddSystemChannels);
 
 		/// <inheritdoc />
 #pragma warning disable CA1502 // Cyclomatic complexity
@@ -425,6 +425,15 @@ namespace Tgstation.Server.Host.Database
 
 			string BadDatabaseType() => throw new ArgumentException($"Invalid DatabaseType: {currentDatabaseType}", nameof(currentDatabaseType));
 
+			if (targetVersion < new Version(5, 13, 0))
+				targetMigration = currentDatabaseType switch
+				{
+					DatabaseType.MySql => nameof(MYAddReattachInfoInitialCompileJob),
+					DatabaseType.PostgresSql => nameof(PGAddReattachInfoInitialCompileJob),
+					DatabaseType.SqlServer => nameof(MSAddReattachInfoInitialCompileJob),
+					DatabaseType.Sqlite => nameof(SLAddReattachInfoInitialCompileJob),
+					_ => BadDatabaseType(),
+				};
 			if (targetVersion < new Version(5, 7, 3))
 				targetMigration = currentDatabaseType switch
 				{

src/Tgstation.Server.Host/Database/Design/MySqlDesignTimeDbContextFactory.cs

@@ -14,6 +14,6 @@ namespace Tgstation.Server.Host.Database.Design
 			=> new MySqlDatabaseContext(
 				DesignTimeDbContextFactoryHelpers.CreateDatabaseContextOptions<MySqlDatabaseContext>(
 					DatabaseType.MariaDB,
-					"Server=127.0.0.1;User Id=root;Password=fake;Database=TGS_Design"));
+					"Server=127.0.0.1;User Id=root;Password=zdxfOOTlQFnklwzytzCj;Database=TGS_Design"));
 	}
 }

src/Tgstation.Server.Host/Database/Migrations/20230520203236_MSAddSystemChannels.cs

@@ -0,0 +1,39 @@
+using System;
+
+using Microsoft.EntityFrameworkCore.Migrations;
+
+#nullable disable
+
+namespace Tgstation.Server.Host.Database.Migrations
+{
+	/// <summary>
+	/// Adds the IsSystemChannel chat channel option for MSSQL.
+	/// </summary>
+	public partial class MSAddSystemChannels : Migration
+	{
+		/// <inheritdoc />
+		protected override void Up(MigrationBuilder migrationBuilder)
+		{
+			if (migrationBuilder == null)
+				throw new ArgumentNullException(nameof(migrationBuilder));
+
+			migrationBuilder.AddColumn<bool>(
+				name: "IsSystemChannel",
+				table: "ChatChannels",
+				type: "bit",
+				nullable: false,
+				defaultValue: true);
+		}
+
+		/// <inheritdoc />
+		protected override void Down(MigrationBuilder migrationBuilder)
+		{
+			if (migrationBuilder == null)
+				throw new ArgumentNullException(nameof(migrationBuilder));
+
+			migrationBuilder.DropColumn(
+				name: "IsSystemChannel",
+				table: "ChatChannels");
+		}
+	}
+}

src/Tgstation.Server.Host/Database/Migrations/20230520203305_MYAddSystemChannels.cs

@@ -0,0 +1,39 @@
+using System;
+
+using Microsoft.EntityFrameworkCore.Migrations;
+
+#nullable disable
+
+namespace Tgstation.Server.Host.Database.Migrations
+{
+	/// <summary>
+	/// Adds the IsSystemChannel chat channel option for MYSQL.
+	/// </summary>
+	public partial class MYAddSystemChannels : Migration
+	{
+		/// <inheritdoc />
+		protected override void Up(MigrationBuilder migrationBuilder)
+		{
+			if (migrationBuilder == null)
+				throw new ArgumentNullException(nameof(migrationBuilder));
+
+			migrationBuilder.AddColumn<bool>(
+				name: "IsSystemChannel",
+				table: "ChatChannels",
+				type: "tinyint(1)",
+				nullable: false,
+				defaultValue: true);
+		}
+
+		/// <inheritdoc />
+		protected override void Down(MigrationBuilder migrationBuilder)
+		{
+			if (migrationBuilder == null)
+				throw new ArgumentNullException(nameof(migrationBuilder));
+
+			migrationBuilder.DropColumn(
+				name: "IsSystemChannel",
+				table: "ChatChannels");
+		}
+	}
+}

src/Tgstation.Server.Host/Database/Migrations/20230520203332_PGAddSystemChannels.cs

@@ -0,0 +1,39 @@
+using System;
+
+using Microsoft.EntityFrameworkCore.Migrations;
+
+#nullable disable
+
+namespace Tgstation.Server.Host.Database.Migrations
+{
+	/// <summary>
+	/// Adds the IsSystemChannel chat channel option for PostgresSQL.
+	/// </summary>
+	public partial class PGAddSystemChannels : Migration
+	{
+		/// <inheritdoc />
+		protected override void Up(MigrationBuilder migrationBuilder)
+		{
+			if (migrationBuilder == null)
+				throw new ArgumentNullException(nameof(migrationBuilder));
+
+			migrationBuilder.AddColumn<bool>(
+				name: "IsSystemChannel",
+				table: "ChatChannels",
+				type: "boolean",
+				nullable: false,
+				defaultValue: true);
+		}
+
+		/// <inheritdoc />
+		protected override void Down(MigrationBuilder migrationBuilder)
+		{
+			if (migrationBuilder == null)
+				throw new ArgumentNullException(nameof(migrationBuilder));
+
+			migrationBuilder.DropColumn(
+				name: "IsSystemChannel",
+				table: "ChatChannels");
+		}
+	}
+}

src/Tgstation.Server.Host/Database/Migrations/20230520203402_SLAddSystemChannels.cs

@@ -0,0 +1,39 @@
+using System;
+
+using Microsoft.EntityFrameworkCore.Migrations;
+
+#nullable disable
+
+namespace Tgstation.Server.Host.Database.Migrations
+{
+	/// <summary>
+	/// Adds the IsSystemChannel chat channel option for SQLite.
+	/// </summary>
+	public partial class SLAddSystemChannels : Migration
+	{
+		/// <inheritdoc />
+		protected override void Up(MigrationBuilder migrationBuilder)
+		{
+			if (migrationBuilder == null)
+				throw new ArgumentNullException(nameof(migrationBuilder));
+
+			migrationBuilder.AddColumn<bool>(
+				name: "IsSystemChannel",
+				table: "ChatChannels",
+				type: "INTEGER",
+				nullable: false,
+				defaultValue: true);
+		}
+
+		/// <inheritdoc />
+		protected override void Down(MigrationBuilder migrationBuilder)
+		{
+			if (migrationBuilder == null)
+				throw new ArgumentNullException(nameof(migrationBuilder));
+
+			migrationBuilder.DropColumn(
+				name: "IsSystemChannel",
+				table: "ChatChannels");
+		}
+	}
+}

src/Tgstation.Server.Host/Database/Migrations/MySqlDatabaseContextModelSnapshot.cs

@@ -16,7 +16,7 @@ namespace Tgstation.Server.Host.Database.Migrations
 		{
 #pragma warning disable 612, 618
 			modelBuilder
-				.HasAnnotation("ProductVersion", "6.0.15")
+				.HasAnnotation("ProductVersion", "6.0.16")
 				.HasAnnotation("Relational:MaxIdentifierLength", 64);
 
 			modelBuilder.Entity("Tgstation.Server.Host.Models.ChatBot", b =>
@@ -84,6 +84,10 @@ namespace Tgstation.Server.Host.Database.Migrations
 					.IsRequired()
 					.HasColumnType("tinyint(1)");
 
+				b.Property<bool?>("IsSystemChannel")
+					.IsRequired()
+					.HasColumnType("tinyint(1)");
+
 				b.Property<bool?>("IsUpdatesChannel")
 					.IsRequired()
 					.HasColumnType("tinyint(1)");

src/Tgstation.Server.Host/Database/Migrations/PostgresSqlDatabaseContextModelSnapshot.cs

@@ -16,7 +16,7 @@ namespace Tgstation.Server.Host.Database.Migrations
 		{
 #pragma warning disable 612, 618
 			modelBuilder
-				.HasAnnotation("ProductVersion", "6.0.15")
+				.HasAnnotation("ProductVersion", "6.0.16")
 				.HasAnnotation("Relational:MaxIdentifierLength", 63);
 
 			NpgsqlModelBuilderExtensions.UseIdentityByDefaultColumns(modelBuilder);
@@ -84,6 +84,10 @@ namespace Tgstation.Server.Host.Database.Migrations
 					.IsRequired()
 					.HasColumnType("boolean");
 
+				b.Property<bool?>("IsSystemChannel")
+					.IsRequired()
+					.HasColumnType("boolean");
+
 				b.Property<bool?>("IsUpdatesChannel")
 					.IsRequired()
 					.HasColumnType("boolean");

src/Tgstation.Server.Host/Database/Migrations/SqlServerDatabaseContextModelSnapshot.cs

@@ -16,7 +16,7 @@ namespace Tgstation.Server.Host.Database.Migrations
 		{
 #pragma warning disable 612, 618
 			modelBuilder
-				.HasAnnotation("ProductVersion", "6.0.15")
+				.HasAnnotation("ProductVersion", "6.0.16")
 				.HasAnnotation("Relational:MaxIdentifierLength", 128);
 
 			SqlServerModelBuilderExtensions.UseIdentityColumns(modelBuilder, 1L, 1);
@@ -84,6 +84,10 @@ namespace Tgstation.Server.Host.Database.Migrations
 					.IsRequired()
 					.HasColumnType("bit");
 
+				b.Property<bool?>("IsSystemChannel")
+					.IsRequired()
+					.HasColumnType("bit");
+
 				b.Property<bool?>("IsUpdatesChannel")
 					.IsRequired()
 					.HasColumnType("bit");

src/Tgstation.Server.Host/Database/Migrations/SqliteDatabaseContextModelSnapshot.cs

@@ -15,7 +15,7 @@ namespace Tgstation.Server.Host.Database.Migrations
 		protected override void BuildModel(ModelBuilder modelBuilder)
 		{
 #pragma warning disable 612, 618
-			modelBuilder.HasAnnotation("ProductVersion", "6.0.15");
+			modelBuilder.HasAnnotation("ProductVersion", "6.0.16");
 
 			modelBuilder.Entity("Tgstation.Server.Host.Models.ChatBot", b =>
 			{
@@ -78,6 +78,10 @@ namespace Tgstation.Server.Host.Database.Migrations
 					.IsRequired()
 					.HasColumnType("INTEGER");
 
+				b.Property<bool?>("IsSystemChannel")
+					.IsRequired()
+					.HasColumnType("INTEGER");
+
 				b.Property<bool?>("IsUpdatesChannel")
 					.IsRequired()
 					.HasColumnType("INTEGER");

src/Tgstation.Server.Host/Models/ChatChannel.cs

@@ -49,6 +49,7 @@ namespace Tgstation.Server.Host.Models
 			IsAdminChannel = IsAdminChannel,
 			IsWatchdogChannel = IsWatchdogChannel,
 			IsUpdatesChannel = IsUpdatesChannel,
+			IsSystemChannel = IsSystemChannel,
 			Tag = Tag,
 		};
 	}

src/Tgstation.Server.Host/Tgstation.Server.Host.csproj

@@ -1,15 +1,13 @@
 <Project Sdk="Microsoft.NET.Sdk.Web">
-  <Import Project="../../build/Version.props" />
+  <Import Project="../../build/Common.props" />
 
   <PropertyGroup>
     <TargetFramework>$(TgsNetVersion)</TargetFramework>
-    <DebugType>Full</DebugType>
     <Version>$(TgsCoreVersion)</Version>
-    <LangVersion>latest</LangVersion>
-    <CodeAnalysisRuleSet>../../build/analyzers.ruleset</CodeAnalysisRuleSet>
     <IncludeOpenAPIAnalyzers>true</IncludeOpenAPIAnalyzers>
-    <DocumentationFile>bin\$(Configuration)\net6.0\Tgstation.Server.Host.xml</DocumentationFile>
     <EnableNETAnalyzers>true</EnableNETAnalyzers>
+    <CodeAnalysisRuleSet>../../build/analyzers.ruleset</CodeAnalysisRuleSet>
+    <DocumentationFile>bin/$(Configuration)/$(TargetFramework)/$(AssemblyName).xml</DocumentationFile>
     <NoWarn>API1000</NoWarn>
   </PropertyGroup>
 
@@ -70,36 +68,36 @@
     <!-- Usage: IRC interop -->
     <PackageReference Include="Cyberboss.SmartIrc4net.Standard" Version="0.4.7" />
     <!-- Usage: Text formatter for Elasticsearch logging plugin -->
-    <PackageReference Include="Elastic.CommonSchema.Serilog" Version="1.5.3" />
+    <PackageReference Include="Elastic.CommonSchema.Serilog" Version="8.6.0" />
     <!-- Usage: GitLab interop -->
     <PackageReference Include="GitLabApiClient" Version="1.8.0" />
     <!-- Usage: git interop -->
     <PackageReference Include="LibGit2Sharp" Version="0.27.2" />
     <!-- Usage: JWT injection into HTTP pipeline -->
-    <PackageReference Include="Microsoft.AspNetCore.Authentication.JwtBearer" Version="6.0.15" />
+    <PackageReference Include="Microsoft.AspNetCore.Authentication.JwtBearer" Version="6.0.16" />
     <!-- Usage: Support ""legacy"" Newotonsoft.Json in HTTP pipeline. The rest of our codebase uses Newtonsoft. -->
-    <PackageReference Include="Microsoft.AspNetCore.Mvc.NewtonsoftJson" Version="6.0.15" />
+    <PackageReference Include="Microsoft.AspNetCore.Mvc.NewtonsoftJson" Version="6.0.16" />
     <!-- Usage: Database ORM -->
-    <PackageReference Include="Microsoft.EntityFrameworkCore" Version="6.0.15" />
+    <PackageReference Include="Microsoft.EntityFrameworkCore" Version="6.0.16" />
     <!-- Usage: Automatic migration generation using command line -->
-    <PackageReference Include="Microsoft.EntityFrameworkCore.Design" Version="6.0.15">
+    <PackageReference Include="Microsoft.EntityFrameworkCore.Design" Version="6.0.16">
       <PrivateAssets>all</PrivateAssets>
       <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
     </PackageReference>
     <!-- Usage: Sqlite ORM plugin -->
-    <PackageReference Include="Microsoft.EntityFrameworkCore.Sqlite" Version="6.0.15" />
+    <PackageReference Include="Microsoft.EntityFrameworkCore.Sqlite" Version="6.0.16" />
     <!-- Usage: MSSQL ORM plugin -->
-    <PackageReference Include="Microsoft.EntityFrameworkCore.SqlServer" Version="6.0.15" />
+    <PackageReference Include="Microsoft.EntityFrameworkCore.SqlServer" Version="6.0.16" />
     <!-- Usage: Included transitively through other packages, workaround for https://github.com/coverlet-coverage/coverlet/issues/1381 -->
     <PackageReference Include="Microsoft.Extensions.Logging.Abstractions" Version="6.0.3" />
     <!-- Usage: POSIX support for syscalls, signals, and symlinks -->
     <PackageReference Include="Mono.Posix.NETStandard" Version="1.0.0" />
     <!-- Usage: YAML config plugin -->
-    <PackageReference Include="NetEscapades.Configuration.Yaml" Version="3.0.0" />
+    <PackageReference Include="NetEscapades.Configuration.Yaml" Version="3.1.0" />
     <!-- Usage: PostgresSQL ORM plugin -->
     <PackageReference Include="Npgsql.EntityFrameworkCore.PostgreSQL" Version="6.0.8" />
     <!-- Usage: GitHub.com interop -->
-    <PackageReference Include="Octokit" Version="5.0.3" />
+    <PackageReference Include="Octokit" Version="6.0.0" />
     <!-- Usage: MYSQL/MariaDB ORM plugin -->
     <PackageReference Include="Pomelo.EntityFrameworkCore.MySql" Version="6.0.2" />
     <!-- Usage: Discord interop -->
@@ -112,7 +110,7 @@
     <!-- Usage: Console logging plugin -->
     <PackageReference Include="Serilog.Sinks.Console" Version="4.1.0" />
     <!-- Usage: Elasticsearch logging plugin -->
-    <PackageReference Include="Serilog.Sinks.Elasticsearch" Version="9.0.0" />
+    <PackageReference Include="Serilog.Sinks.Elasticsearch" Version="9.0.1" />
     <!-- Usage: File logging plugin -->
     <PackageReference Include="Serilog.Sinks.File" Version="5.0.0" />
     <!-- Usage: Linting -->
@@ -129,11 +127,11 @@
     <!-- Usage: Windows authentication plugin allowing searching for users by name -->
     <PackageReference Include="System.DirectoryServices.AccountManagement" Version="6.0.0" />
     <!-- Usage: JWT plugin needed to undo some Microsoft meddling in the HTTP pipeline -->
-    <PackageReference Include="System.IdentityModel.Tokens.Jwt" Version="6.28.1" />
+    <PackageReference Include="System.IdentityModel.Tokens.Jwt" Version="6.30.1" />
     <!-- Usage: Identifying owning user of Windows Process objects -->
     <PackageReference Include="System.Management" Version="6.0.0" />
     <!-- Usage: .DeleteAsync() support for IQueryable<T>s -->
-    <PackageReference Include="Z.EntityFramework.Plus.EFCore" Version="6.20.1" />
+    <PackageReference Include="Z.EntityFramework.Plus.EFCore" Version="6.22.0" />
   </ItemGroup>
 
   <ItemGroup>

tests/Tgstation.Server.Api.Tests/TestApiHeaders.cs

@@ -1,4 +1,4 @@
-using Microsoft.AspNetCore.Http;
+using Microsoft.AspNetCore.Http;
 using Microsoft.AspNetCore.Http.Headers;
 using Microsoft.VisualStudio.TestTools.UnitTesting;
 using System;

tests/Tgstation.Server.Api.Tests/Tgstation.Server.Api.Tests.csproj

@@ -1,10 +1,8 @@
 <Project Sdk="Microsoft.NET.Sdk">
-  <Import Project="../../build/Version.props" />
+  <Import Project="../../build/Common.props" />
 
   <PropertyGroup>
     <TargetFramework>$(TgsNetVersion)</TargetFramework>
-
-    <LangVersion>latest</LangVersion>
   </PropertyGroup>
 
   <ItemGroup>
@@ -12,12 +10,12 @@
       <PrivateAssets>all</PrivateAssets>
       <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
     </PackageReference>
-    <PackageReference Include="GitHubActionsTestLogger" Version="2.0.1">
+    <PackageReference Include="GitHubActionsTestLogger" Version="2.2.1">
       <PrivateAssets>all</PrivateAssets>
       <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
     </PackageReference>
     <PackageReference Include="Microsoft.AspNetCore.Http" Version="2.2.2" />
-    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.5.0" />
+    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.6.0" />
     <PackageReference Include="MSTest.TestAdapter" Version="3.0.2" />
     <PackageReference Include="MSTest.TestFramework" Version="3.0.2" />
   </ItemGroup>

tests/Tgstation.Server.Client.Tests/Tgstation.Server.Client.Tests.csproj

@@ -1,10 +1,8 @@
 <Project Sdk="Microsoft.NET.Sdk">
-  <Import Project="../../build/Version.props" />
+  <Import Project="../../build/Common.props" />
 
   <PropertyGroup>
     <TargetFramework>$(TgsNetVersion)</TargetFramework>
-
-    <LangVersion>latest</LangVersion>
   </PropertyGroup>
 
   <ItemGroup>
@@ -12,11 +10,11 @@
       <PrivateAssets>all</PrivateAssets>
       <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
     </PackageReference>
-    <PackageReference Include="GitHubActionsTestLogger" Version="2.0.1">
+    <PackageReference Include="GitHubActionsTestLogger" Version="2.2.1">
       <PrivateAssets>all</PrivateAssets>
       <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
     </PackageReference>
-    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.5.0" />
+    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.6.0" />
     <PackageReference Include="Moq" Version="4.18.4" />
     <PackageReference Include="MSTest.TestAdapter" Version="3.0.2" />
     <PackageReference Include="MSTest.TestFramework" Version="3.0.2" />

tests/Tgstation.Server.Host.Console.Tests/Tgstation.Server.Host.Console.Tests.csproj

@@ -1,10 +1,8 @@
 <Project Sdk="Microsoft.NET.Sdk">
-  <Import Project="../../build/Version.props" />
+  <Import Project="../../build/Common.props" />
 
   <PropertyGroup>
     <TargetFramework>$(TgsNetVersion)</TargetFramework>
-
-    <LangVersion>latest</LangVersion>
   </PropertyGroup>
 
   <ItemGroup>
@@ -12,11 +10,11 @@
       <PrivateAssets>all</PrivateAssets>
       <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
     </PackageReference>
-    <PackageReference Include="GitHubActionsTestLogger" Version="2.0.1">
+    <PackageReference Include="GitHubActionsTestLogger" Version="2.2.1">
       <PrivateAssets>all</PrivateAssets>
       <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
     </PackageReference>
-    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.5.0" />
+    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.6.0" />
     <PackageReference Include="Moq" Version="4.18.4" />
     <PackageReference Include="MSTest.TestAdapter" Version="3.0.2" />
     <PackageReference Include="MSTest.TestFramework" Version="3.0.2" />

tests/Tgstation.Server.Host.Service.Tests/Tgstation.Server.Host.Service.Tests.csproj

@@ -2,14 +2,11 @@
 
   <PropertyGroup>
     <TargetFramework>net472</TargetFramework>
-
-    <LangVersion>latest</LangVersion>
   </PropertyGroup>
 
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|AnyCPU'">
     <TreatWarningsAsErrors>false</TreatWarningsAsErrors>
     <WarningsAsErrors />
-    <DocumentationFile></DocumentationFile>
   </PropertyGroup>
 
   <ItemGroup>
@@ -17,11 +14,11 @@
       <PrivateAssets>all</PrivateAssets>
       <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
     </PackageReference>
-    <PackageReference Include="GitHubActionsTestLogger" Version="2.0.1">
+    <PackageReference Include="GitHubActionsTestLogger" Version="2.2.1">
       <PrivateAssets>all</PrivateAssets>
       <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
     </PackageReference>
-    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.5.0" />
+    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.6.0" />
     <PackageReference Include="Moq" Version="4.18.4" />
     <PackageReference Include="MSTest.TestAdapter" Version="3.0.2" />
     <PackageReference Include="MSTest.TestFramework" Version="3.0.2" />

tests/Tgstation.Server.Host.Tests.Signals/Tgstation.Server.Host.Tests.Signals.csproj

@@ -1,11 +1,9 @@
 <Project Sdk="Microsoft.NET.Sdk">
-  <Import Project="../../build/Version.props" />
+  <Import Project="../../build/Common.props" />
 
   <PropertyGroup>
     <TargetFramework>$(TgsNetVersion)</TargetFramework>
     <OutputType>Exe</OutputType>
-
-    <LangVersion>latest</LangVersion>
   </PropertyGroup>
 
   <ItemGroup>

tests/Tgstation.Server.Host.Tests/Tgstation.Server.Host.Tests.csproj

@@ -1,10 +1,8 @@
 <Project Sdk="Microsoft.NET.Sdk">
-  <Import Project="../../build/Version.props" />
+  <Import Project="../../build/Common.props" />
 
   <PropertyGroup>
     <TargetFramework>$(TgsNetVersion)</TargetFramework>
-
-    <LangVersion>latest</LangVersion>
   </PropertyGroup>
 
   <ItemGroup>
@@ -12,11 +10,11 @@
       <PrivateAssets>all</PrivateAssets>
       <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
     </PackageReference>
-    <PackageReference Include="GitHubActionsTestLogger" Version="2.0.1">
+    <PackageReference Include="GitHubActionsTestLogger" Version="2.2.1">
       <PrivateAssets>all</PrivateAssets>
       <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
     </PackageReference>
-    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.5.0" />
+    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.6.0" />
     <PackageReference Include="Moq" Version="4.18.4" />
     <PackageReference Include="MSTest.TestAdapter" Version="3.0.2" />
     <PackageReference Include="MSTest.TestFramework" Version="3.0.2" />

tests/Tgstation.Server.Host.Watchdog.Tests/Tgstation.Server.Host.Watchdog.Tests.csproj

@@ -1,16 +1,13 @@
 <Project Sdk="Microsoft.NET.Sdk">
-  <Import Project="../../build/Version.props" />
+  <Import Project="../../build/Common.props" />
 
   <PropertyGroup>
     <TargetFramework>$(TgsNetVersion)</TargetFramework>
-
-    <LangVersion>latest</LangVersion>
   </PropertyGroup>
 
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|AnyCPU'">
     <TreatWarningsAsErrors>false</TreatWarningsAsErrors>
     <WarningsAsErrors />
-    <DocumentationFile></DocumentationFile>
   </PropertyGroup>
 
   <ItemGroup>
@@ -18,11 +15,11 @@
       <PrivateAssets>all</PrivateAssets>
       <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
     </PackageReference>
-    <PackageReference Include="GitHubActionsTestLogger" Version="2.0.1">
+    <PackageReference Include="GitHubActionsTestLogger" Version="2.2.1">
       <PrivateAssets>all</PrivateAssets>
       <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
     </PackageReference>
-    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.5.0" />
+    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.6.0" />
     <PackageReference Include="Moq" Version="4.18.4" />
     <PackageReference Include="MSTest.TestAdapter" Version="3.0.2" />
     <PackageReference Include="MSTest.TestFramework" Version="3.0.2" />

tests/Tgstation.Server.Tests/Live/Instance/ChatTest.cs

@@ -85,6 +85,7 @@ namespace Tgstation.Server.Tests.Live.Instance
 						IsAdminChannel = false,
 						IsUpdatesChannel = true,
 						IsWatchdogChannel = true,
+						IsSystemChannel = true,
 						Tag = "butt2",
 						ChannelData = channelId,
 #pragma warning disable CS0618
@@ -98,6 +99,7 @@ namespace Tgstation.Server.Tests.Live.Instance
 			Assert.IsNotNull(updatedBot.Channels);
 			Assert.AreEqual(1, updatedBot.Channels.Count);
 			Assert.AreEqual(false, updatedBot.Channels.First().IsAdminChannel);
+			Assert.AreEqual(true, updatedBot.Channels.First().IsSystemChannel);
 			Assert.AreEqual(true, updatedBot.Channels.First().IsUpdatesChannel);
 			Assert.AreEqual(true, updatedBot.Channels.First().IsWatchdogChannel);
 			Assert.AreEqual("butt2", updatedBot.Channels.First().Tag);
@@ -160,6 +162,7 @@ namespace Tgstation.Server.Tests.Live.Instance
 						IsAdminChannel = true,
 						IsUpdatesChannel = true,
 						IsWatchdogChannel = true,
+						IsSystemChannel = true,
 						Tag = "butt",
 						ChannelData = channelId.ToString(),
 #pragma warning disable CS0618
@@ -172,6 +175,7 @@ namespace Tgstation.Server.Tests.Live.Instance
 			Assert.AreEqual(true, updatedBot.Enabled);
 			Assert.IsNotNull(updatedBot.Channels);
 			Assert.AreEqual(1, updatedBot.Channels.Count);
+			Assert.AreEqual(true, updatedBot.Channels.First().IsSystemChannel);
 			Assert.AreEqual(true, updatedBot.Channels.First().IsAdminChannel);
 			Assert.AreEqual(true, updatedBot.Channels.First().IsUpdatesChannel);
 			Assert.AreEqual(true, updatedBot.Channels.First().IsWatchdogChannel);

tests/Tgstation.Server.Tests/Tgstation.Server.Tests.csproj

@@ -1,10 +1,8 @@
 <Project Sdk="Microsoft.NET.Sdk">
-  <Import Project="../../build/Version.props" />
+  <Import Project="../../build/Common.props" />
 
   <PropertyGroup>
     <TargetFramework>$(TgsNetVersion)</TargetFramework>
-
-    <LangVersion>latest</LangVersion>
   </PropertyGroup>
 
   <ItemGroup>
@@ -12,11 +10,11 @@
       <PrivateAssets>all</PrivateAssets>
       <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
     </PackageReference>
-    <PackageReference Include="GitHubActionsTestLogger" Version="2.0.1">
+    <PackageReference Include="GitHubActionsTestLogger" Version="2.2.1">
       <PrivateAssets>all</PrivateAssets>
       <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
     </PackageReference>
-    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.5.0" />
+    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.6.0" />
     <PackageReference Include="Moq" Version="4.18.4" />
     <PackageReference Include="MSTest.TestAdapter" Version="3.0.2" />
     <PackageReference Include="MSTest.TestFramework" Version="3.0.2" />

tgstation-server.sln

@@ -25,10 +25,12 @@ Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "build", "build", "{6FF654E6
 	ProjectSection(SolutionItems) = preProject
 		build\analyzers.ruleset = build\analyzers.ruleset
 		build\BuildDox.ps1 = build\BuildDox.ps1
+		build\Common.props = build\Common.props
 		build\ControlPanelVersion.props = build\ControlPanelVersion.props
 		build\coverlet.runsettings = build\coverlet.runsettings
 		build\Dockerfile = build\Dockerfile
 		build\GenerateMigrations.sh = build\GenerateMigrations.sh
+		build\NugetCommon.props = build\NugetCommon.props
 		build\OpenApiValidationSettings.json = build\OpenApiValidationSettings.json
 		build\stylecop.json = build\stylecop.json
 		build\tgs.docker.sh = build\tgs.docker.sh
@@ -193,7 +195,7 @@ Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "Tgstation.Server.Migrator.C
 EndProject
 Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "Tgstation.Server.Host.Common", "src\Tgstation.Server.Host.Common\Tgstation.Server.Host.Common.csproj", "{CF3968A0-EA81-4464-B2D4-C7D40F6B5BCB}"
 EndProject
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Tgstation.Server.Common", "src\Tgstation.Server.Common\Tgstation.Server.Common.csproj", "{70CD9A98-D31A-44A4-81D1-D02764CEEEFD}"
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "Tgstation.Server.Common", "src\Tgstation.Server.Common\Tgstation.Server.Common.csproj", "{70CD9A98-D31A-44A4-81D1-D02764CEEEFD}"
 EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution

tools/ReleaseNotes/ReleaseNotes.csproj

@@ -1,10 +1,9 @@
 <Project Sdk="Microsoft.NET.Sdk">
-  <Import Project="../../build/Version.props" />
+  <Import Project="../../build/Common.props" />
 
   <PropertyGroup>
     <OutputType>Exe</OutputType>
     <TargetFramework>$(TgsNetVersion)</TargetFramework>
-    <LangVersion>latest</LangVersion>
   </PropertyGroup>
 
   <ItemGroup>

tools/Tgstation.Server.Migrator.Comms/Program.cs

@@ -204,6 +204,7 @@ static class Program
 						IsWatchdogChannel = providerInfo.WatchdogChannels.Any(x => NormalizeChannelId(x) == channelIdentifier),
 						IsAdminChannel = providerInfo.AdminChannels.Any(x => NormalizeChannelId(x) == channelIdentifier),
 						IsUpdatesChannel = providerInfo.DevChannels.Any(x => NormalizeChannelId(x) == channelIdentifier),
+						// system channels are too new a feature to target
 						ChannelData = channelIdentifier,
 					};
 

tools/Tgstation.Server.Migrator.Comms/Tgstation.Server.Migrator.Comms.csproj

@@ -1,11 +1,11 @@
 <Project Sdk="Microsoft.NET.Sdk">
+  <Import Project="../../build/Common.props" />
 
   <PropertyGroup>
     <OutputType>Exe</OutputType>
     <TargetFramework>net472</TargetFramework>
     <RuntimeIdentifier>win-x86</RuntimeIdentifier>
     <Version>$(TgsMigratorVersion)</Version>
-    <LangVersion>latest</LangVersion>
     <Nullable>enable</Nullable>
   </PropertyGroup>
 

tools/Tgstation.Server.Migrator/Tgstation.Server.Migrator.csproj

@@ -1,12 +1,11 @@
 <Project Sdk="Microsoft.NET.Sdk">
-  <Import Project="../../build/Version.props" />
+  <Import Project="../../build/Common.props" />
   
   <PropertyGroup>
     <OutputType>Exe</OutputType>
-    <TargetFramework>net6.0</TargetFramework>
+    <TargetFramework>$(TgsNetVersion)</TargetFramework>
     <RuntimeIdentifier>win-x86</RuntimeIdentifier>
     <Version>$(TgsMigratorVersion)</Version>
-    <LangVersion>latest</LangVersion>
     <Nullable>enable</Nullable>
     <NoWarn>CA1416</NoWarn>
     <ValidateExecutableReferencesMatchSelfContained>false</ValidateExecutableReferencesMatchSelfContained>