Visual Studio Code mono debugging launch.json

build.fsx

//http://www.navision-blog.de/blog/2015/12/21/adding-background-tasks-to-suave-io-websites/
let startApp path =
    let info = ProcessStartInfo(FileName = path)
    let proc = new System.Diagnostics.Process(StartInfo = info)
    
    start proc
    proc
    

let rec runWebsite() =
    let codeFolder = FullName "src"
    use watcher = new FileSystemWatcher(codeFolder, "*.fs")
    watcher.EnableRaisingEvents <- true
    watcher.IncludeSubdirectories <- true

    
    build()
    copyBinaries()
    
    let app = Path.Combine("bin","myapp","myapp.exe")
    let proc = startApp app
    let handleWatcherEvents = handleWatcherEvents proc.Id
    watcher.Changed.Add(handleWatcherEvents)
    watcher.Created.Add(handleWatcherEvents)
    watcher.Renamed.Add(handleWatcherEvents)
    proc.WaitForExit()

    watcher.Dispose()
    runWebsite()

and handleWatcherEvents id (e:IO.FileSystemEventArgs) =
    tracefn "Rebuilding website...."

    Process.GetProcessById(id).Kill()
    
Target "RunWebsite" (fun _ ->
    async {
        Threading.Thread.Sleep(15000)
        Process.Start(sprintf "http://localhost:%d" 8080) |> ignore }
    |> Async.Start
    runWebsite()
)
    

launch.json

{
	"version": "0.1.0",
	"configurations": [
		{
	                "preLaunchTask": "Build",  
            		"externalConsole": true,  
			"name": "Launch Server",
			"type": "mono",
			// Workspace relative or absolute path to the program.
			"program": "${workspaceRoot}/bin/myapp/myapp.exe",
			"stopOnEntry": true
		},
        {
            "name": "Attach to Mono",
            "request": "attach",
            "type": "mono",
            "address": "localhost",
            "port": 55555
        }
	]
}

tasks.json

{
    "version" : "0.1.0",

    "windows": {
        "command" : "build.cmd"	
    },
    "osx": {
        "command" : "./build.sh"	
    },
    "linux": {
        "command" : "./build.sh"	
    },	
    "isShellCommand" : true,
    "echoCommand": true,
    "showOutput" : "always",
    "suppressTaskName": true,
    "tasks": [ {
        "taskName" : "Build", 
        "args" : ["CopyBinaries"],
        "isBuildCommand" : true
        },{
        "taskName" : "RunTests",
        "args" : ["RunTests"],
        "isBuildCommand" : false,
        "isTestCommand" : true
        },{
        "taskName" : "RunWebsite",
        "args" : ["RunWebsite"],
        "isBuildCommand" : false,
        "isTestCommand" : false,
        "isWatching": true
        }
    ]
}