Add buildkite pipeline and cake taks for publishing nuget packages (#15)

Author: ChrisixFlash

build.cake

@@ -34,6 +34,8 @@ var KOTLINSTDLIBCOMMONURL = $"http://search.maven.org/remotecontent?filepath=org
 var KOTLIANNOTATIONSURL = $"http://search.maven.org/remotecontent?filepath=org/jetbrains/annotations/{KOTLIANNOTATIONS_VERSION}/annotations-{KOTLIANNOTATIONS_VERSION}.jar";
 var YEARCLASSURL = $"http://search.maven.org/remotecontent?filepath=com/facebook/device/yearclass/yearclass/{YEARCLASS_VERSION}/yearclass-{YEARCLASS_VERSION}.jar";
 
+var NUGET_API_KEY = EnvironmentVariable("NUGET_API_KEY");
+
 Task ("FetchDependencies")
 	.Does (() => {
 		// PSPDFKit.Android
@@ -118,6 +120,17 @@ Task ("NuGet")
 	});
 });
 
+Task ("NuGet-Push")
+	.IsDependentOn("Nuget")
+	.Does (() =>
+{
+	var package = "./nuget/pkgs/PSPDFKit.Android." + PSPDFKIT_VERSION +".nupkg";
+	NuGetPush(package, new NuGetPushSettings {
+			Source = "https://api.nuget.org/v3/index.json",
+			ApiKey = NUGET_API_KEY
+	});
+});
+
 Task ("Clean")
 	.Does (() => {
 		if (FileExists ("./PSPDFKit.Android.dll"))
@@ -161,4 +174,4 @@ Task ("Clean-obj-bin")
 		}
 });
 
-RunTarget (target);
+RunTarget (target);

ci/pipelines/release.yml

@@ -0,0 +1,14 @@
+steps:
+  - label: 'Build Nuget Packages'
+    command: '( ./build.sh --Target=Nuget )'
+    agents:
+      macos: true
+
+  - wait
+
+  - block: ':rocket: Release'
+
+  - label: 'Upload Nuget Packages'
+    command: '( ./build.sh --Target=Nuget-Push)'
+    agents:
+      macos: true