Add .drone.yml for CI.

.drone.yml

@@ -0,0 +1,59 @@
+kind: pipeline
+type: docker
+name: build
+
+steps:
+  - name: build-win-x64
+    image: mcr.microsoft.com/dotnet/sdk:5.0
+    commands:
+      - dotnet restore
+      - dotnet publish -c release -r win-x64 --self-contained true --no-restore -p:PublishSingleFile=true -p:IncludeAllContentForSelfExtract=true
+
+  - name: build-linux-x64
+    image: mcr.microsoft.com/dotnet/sdk:5.0
+    commands:
+      - dotnet restore
+      - dotnet publish -c release -r linux-x64 --self-contained true --no-restore -p:PublishSingleFile=true -p:IncludeAllContentForSelfExtract=true
+
+  - name: build-linux-armhf
+    image: mcr.microsoft.com/dotnet/sdk:5.0
+    commands:
+      - dotnet restore
+      - dotnet publish -c release -r linux-arm --self-contained true --no-restore -p:PublishSingleFile=true -p:IncludeAllContentForSelfExtract=true
+
+  - name: build-linux-arm64
+    image: mcr.microsoft.com/dotnet/sdk:5.0
+    commands:
+      - dotnet restore
+      - dotnet publish -c release -r linux-arm64 --self-contained true --no-restore -p:PublishSingleFile=true -p:IncludeAllContentForSelfExtract=true
+
+  - name: build-osx-x64
+    image: mcr.microsoft.com/dotnet/sdk:5.0
+    commands:
+      - dotnet restore
+      - dotnet publish -c release -r osx-x64 --self-contained true --no-restore -p:PublishSingleFile=true -p:IncludeAllContentForSelfExtract=true
+
+  - name: collate
+    image: mcr.microsoft.com/dotnet/sdk:5.0
+    when:
+      event: 
+        - tag
+    commands:
+      - mkdir -p build
+      - mv JackMail/bin/Release/net5.0/win-x64/publish/JackMail.exe build/JackMail_win-x64.exe
+      - mv JackMail/bin/Release/net5.0/linux-x64/publish/JackMail build/JackMail_linux-x64
+      - mv JackMail/bin/Release/net5.0/linux-arm/publish/JackMail build/JackMail_linux-arm
+      - mv JackMail/bin/Release/net5.0/linux-arm64/publish/JackMail build/JackMail_linux-arm64
+      - mv JackMail/bin/Release/net5.0/osx-x64/publish/JackMail build/JackMail_osx-x64
+
+  - name: publish
+    image: plugins/gitea-release
+    when:
+      event: 
+        - tag
+    settings:
+      base_url: https://git.jacknet.io
+      api_key:
+        from_secret: gitea_token
+      files:
+        - build/JackMail_*

JackMail.sln

@@ -5,6 +5,11 @@ VisualStudioVersion = 16.0.808.3
 MinimumVisualStudioVersion = 10.0.40219.1
 Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "JackMail", "JackMail\JackMail.csproj", "{970B9ABF-A628-4804-B7C7-257BC0DF1B56}"
 EndProject
+Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "Solution Items", "Solution Items", "{EC7D600D-2AF6-4D5E-9493-D1658D642D94}"
+	ProjectSection(SolutionItems) = preProject
+		.drone.yml = .drone.yml
+	EndProjectSection
+EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
 		Debug|Any CPU = Debug|Any CPU

JackMail/JackMail.csproj

@@ -2,6 +2,7 @@
 
   <PropertyGroup>
     <TargetFramework>net5.0</TargetFramework>
+    <RuntimeIdentifiers>win-x64;linux-x64;linux-arm;linux-arm64;osx-x64</RuntimeIdentifiers>
     <UserSecretsId>dotnet-JackMail-3363D956-FACF-45AF-9B24-53666388FBC1</UserSecretsId>
   </PropertyGroup>