Ithaqua posted:

If you're doing true CI, I strongly recommend hooking up an on-prem CI solution. Team Build will of course work just peachy with VSO, as will Jenkins and TeamCity.

Geisladisk posted:

Does anyone have any tips for streamlining Windows Service development?

I started working on a large, mature system two months ago, which runs on a fairly baffling ecosystem of virtual machines. Most of these VMs are running windows services, which I need to develop.

I've got batch scripts that, whenever I recompile a particular service, automatically uninstalls it, copies the new files to the VM, reinstalls the service, and then starts it. I then attach the debugger to the process running on the VM if I need to debug. This is all fairly nice, but the process still feels very unweildy, and compiling and running the code takes up to a minute, which is frustrating me more than it should.

Are there any ways to streamline this process that I haven't noticed? I'm running visual studio 2012 pro, but I can get a upgrade to 2013 pro if needed.

Ithaqua posted:

Something I was thinking about earlier:

Let's say you have an event. When you fire the event, you want to provide some event args, but the contents of the event args don't really match up with any strongly-typed models you have, and it's a bit too specific to warrant any sort of reuse, and also you're a lazy jerk.

Is it wrong to do public event EventHandler<dynamic> FooEvent;?

The invocation (in my mind) would be to handle a case like this:

code:

FooEvent(this, new { Stuff=whatever, OtherStuff=butts });

It feels wrong, but I can't express what's so wrong about it.

Ithaqua posted:

If you want to stay in the Microsoft stack and keep it simple (and can afford licensing costs), MS Release Management fits the bill. It can kick off a custom workflow-based deployment sequence, a DSC script, or Chef.

DSC, Chef, or Puppet are all attractive and reasonable options here.

Ithaqua posted:

RM...
I don't have any Octopus Deploy experience, but it looks solid.

Green_Machine posted:

There's a framework ideal for writing scenario-based BDD-style unit test that ties into MSTest. It's called Given.

Scaramouche posted:

I think this is possible, but I was wondering if you guys could give me a direction to get started. I've got a large number of images provided by a third party. Some of them are either contrasty, adjusted poorly, or what have you. This means that backgrounds that should be white, are instead kind of an off-white. Here's an example image:


So what I'd like to be able to do, programmatically, is 'fix' these images so the white is actually RGB 255 white. Do you guys have any suggestions or libraries that you think are up to this?

Note: I don't have to be able to >find< them, I have another service that does this. I'd be inputting a big list of file names with weird backgrounds into whatever solution I develop.

Ochowie posted:

So I have an f# question. Has anyone done pattern matching on .NET types using the :? operator? I'm using f# to do some financial calculations on a list of various types derived from a base class and calculations need to be performed based on the derived type. I could give each of them a calculate method and use polymorphism but I was intrigued by the ability in f# to pattern match on type.

Ochowie posted:

I know I should, but these are POCO EF entities and I feel dirty putting what is essentially business logic right on the entity class. Transferring them to DTOs would essentially require the same kind of type checking since i would get a list of base objects and want map them to a list of DTOs.

chmods please posted:

Aren't those array functions evaluated lazily? I wonder if stepping through in the debugger forces an evaluation and you wouldn't otherwise see it in normal execution for a while.

Bognar posted:

I wish C# has this kind of composition. I love that you can do .Where(string.IsNullOrEmpty) but I hate that you have to do .Where(x => !string.IsNullOrEmpty(x)).

ljw1004 posted:

NameOf operator - https://roslyn.codeplex.com/discussions/570551
This aims to be used in places like ArgumentNullException, or PropertyChangedEventArgs, or DependencyProperty.Register, where you need to pass the string name of a programmatic element but if your code is full of string literals then it's too easy to make mistakes.

code:

// Changed to allow certain expressions in its argument
Console.WriteLine(nameof(this.p)); // returns "p"

// Changed to disallow certain types
var s = nameof(List<>.Length); // now an error

// Changed to allow only a sequence of dot-qualified identifiers
var s = nameof(StrongBox<string>.Value.Length); // returns "Length"
var s = nameof(((StrongBox<string>)(null).Value); // error not allowed casts

Che Delilas posted:

I'll keep AutoMapper in mind - this project is pretty simple, so I'm happy just manually creating all my viewmodels, but I've seen it mentioned before a number of times as a real energy saver.

Funking Giblet posted:

I think you're missing something major! You can validate the configuration at runtime which will find unmapped fields, or write a unit test to do as much. Not to mention injectable value and type resolvers which can be reused across types.

aBagorn posted:

chmods please posted:

I'm using Autofac with an MVC project. I need to provide a value from HttpApplication.Request to the container - it needs to be used elsewhere in the hierarchy, possibly from components which don't know anything about ASP.NET. Something like:

code:

protected void Application_Start()
{
    // register a bunch of things including ButtModule
    builder.RegisterInstance(Request.UserHostAddress).Named<string>("RequestAddress");
    container = builder.Build();
}

// in a module far, far away
public class ButtModule : Module
{
    protected override void Load(ContainerBuilder builder)
    {
        builder.Register(c => new Butt(c.ResolveNamed<string>("RequestAddress")).As<IButt>().InstancePerDependency();
    }
}

Unfortunately, the request object is not available in Application_Start - it throws an exception "Request is not available in this context". I tried to be sneaky and register it with a lambda instead, but run into the same problem. It seems like it would be bad to build the container in BeginRequest but I can't think of anywhere else where I could access the request data and provide it to the container before it is needed to resolve dependencies. Ideas?

Dromio posted:

We’ve had an issue where we changed our deployment to support testing an upcoming release in development and QA, but then had to re-deploy the older Production build and couldn’t without a good deal of work.

Dromio posted:

aBagorn posted:

Follow up, so if I'm reading these correctly, EF does NOT by default lock DB rows?

This is something that he's hung up on and the more ammo I can take in the better.

Mr Shiny Pants posted:

This has stumped me for awhile:

Does anybody know how in F# I can start parallel async tasks and select one that returns a certain value?

I want to download something in parallel from a couple of webservers and need the one that returns 200. The others may not respond that is why I would like it to run in parallel.

I really have no clue, I've looked at joinads and observables but have no idea how to glue it all together.

https://github.com/dotnet/coreclr/blob/02084af832c2900cf6eac2a168c41f261409be97/src/mscorlib/src/System/Globalization/DateTimeParse.cs#L2484 posted:

code:

#if FEATURE_CORECLR // on CoreCLR DateTime is also restricted to +- 14:00, just like DateTimeOffset

xgalaxy posted:

What does everyone suggest for good code coverage tool?
Right now I'm looking at NCover, OpenCover, and dotCover

It looks like NCover and OpenCover provide better code coverage reporting vs dotCover. If I could actually use Visual Studio instead of Xamarin Studio (barf) it might swing things in dotCover's favor but as it is that isn't a possibility for me currently.

Any comments about NCover vs OpenCover? Or some other code coverage tool?

Uziel posted:

We would actually be running it on the same machine (dedicated to our app) since its an intranet application. Guessing private queues would work then!

GrumpyDoctor posted:

I'm having a weird AutoMapper problem. Mapper.AssertConfigurationIsValid() succeeds, but all my actual mappings are failing with "Missing type map configuration or unsupported mapping." As an example: I'm mapping a Source.GlazingMaterial to a Destination.GlazingMaterial, but the mapper, in a child mapping, then tries to map the source object itself to an Int32 field, which obviously fails. I don't know which one, because neither type even has any Int32 fields. Something like this is happening with every type - the mapper tries to map the source object itself to a field on the destination object (which may not even exist). Calling Mapper.Reset() before establishing my mappings doesn't fix the problem. Is there any way to ask AutoMapper wtf it thinks it's doing?

e: When the exception is thrown, AutoMapperMappingException.Context.MemberName is empty. That seems...wrong.

rarbatrol posted:

Yeah, switching from C# to F# at work feels like going back to working with notepad sometimes.

Gul Banana posted:

talking the language maintainers into using a multipass compiler and allowing unordered files would be nice :-(