turn the Massbuild tool into UnidocBuild, which can now query the swiftinit API to determine what tags to build

Author: tayloraswift

.gitignore

@@ -1,5 +1,6 @@
 .build
 .massbuild
+.swiftinit
 .testing
 .unidoc
 .vscode

Package.swift

@@ -455,11 +455,6 @@ let package:Package = .init(
             ]),
 
 
-        .executableTarget(name: "Massbuild", dependencies:
-            [
-                .target(name: "SymbolGraphBuilder"),
-            ]),
-
         .executableTarget(name: "UnidocBuild", dependencies:
             [
                 .target(name: "HTTPClient"),

Sources/GitHubClient/GitHubClient.Connection.swift

@@ -94,7 +94,7 @@ extension GitHubClient<GitHubOAuth.API>.Connection
             }
 
             status = response.status
-            break
+            break following
         }
 
         throw GitHubClient<GitHubOAuth.API>.StatusError.init(code: status)

Sources/HTTPClient/ClientInterfaceHandler.swift

@@ -44,6 +44,12 @@ extension ClientInterfaceHandler:ChannelOutboundHandler
         batch:[HPACKHeaders]
     )
 
+    func errorCaught(context:ChannelHandlerContext, error:any Error)
+    {
+        self.owner?.finish(throwing: error)
+        context.channel.close(promise: nil)
+    }
+
     func write(context:ChannelHandlerContext, data:NIOAny, promise:EventLoopPromise<Void>?)
     {
         let owner:AsyncThrowingStream<HTTP2Client.Facet, any Error>.Continuation
@@ -65,14 +71,12 @@ extension ClientInterfaceHandler:ChannelOutboundHandler
                 switch $0
                 {
                 case .success(let stream):
-                    stream.write(HTTP2Frame.FramePayload.headers(
+                    stream.writeAndFlush(HTTP2Frame.FramePayload.headers(
                         HTTP2Frame.FramePayload.Headers.init(
                             headers: request,
                             endStream: true)),
                         promise: nil)
 
-                    stream.flush()
-
                 case .failure(let error):
                     owner.finish(throwing: error)
                     context.channel.close(promise: nil)