Are you curious about the next generation of AI tools for code generation? Introducing Copilot X, an advanced enhancement to the well-regarded GitHub Copilot. This video offers a detailed exploration of the capabilities and use cases of Copilot X and its key component, Copilot Chat. As an evolved iteration of GitHub Copilot, Copilot X brings new potential for generating larger portions of code, refactoring classes and methods, and providing coverage with unit tests. It demonstrates how AI is increasingly shaping the landscape of programming and code development. Witness firsthand how Copilot X interacts seamlessly with Visual Studio Code and learn about its context-aware conversation feature, a remarkable tool that lets you refine requirements until you reach an acceptable portion of generated code. Please note that, despite the impressive capabilities of Copilot X and Copilot Chat, they do not replace the vital role of a developer in writing code. Rather, they serve as powerful allies, aiding in efficiency and accuracy. Join me in this video to discover how Copilot X and Copilot Chat can contribute to your programming toolkit. Explore their unique features and learn how to integrate them into your development process.
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#githubcopilot #vscode #csharp
Content
0.48 -> Copilot X is here, adding many new
capabilities to the GitHub Copilot AI tool.
6.54 -> It can now write larger portions of code
at once, refactor your classes and methods,
12.9 -> and even cover them with unit tests.
But as you will quickly learn,
18 -> Copilot X is not magical.
It will still be your job to write that code.
24.96 -> I will now show you the first steps of using
Copilot Chat inside Visual Studio Code.
30.48 -> You will see how you can make it run and what
you can expect when you try it for the first
35.64 -> time on a realistic business application.
The journey begins at this address.
41.22 -> Copilot X is a set of AI
tools on top of the Copilot.
46.62 -> Some of those X tools are introduced on this
page and I expected more will come in the future.
53.34 -> And all these tools require the basic
Copilot to be already installed.
59.4 -> Remember, Copilot is a paid tool, so
you need to figure that out first.
64.56 -> I have a couple of videos already on
Copilot and in this video I will only
70.14 -> talk about Copilot X and, more specifically,
Copilot Chat as the most prominent example of
78.12 -> those tools added to the Copilot.
This is what Chat will look like.
83.28 -> You will see it in a minute in Visual
Studio Code, when I will start using it.
88.62 -> As it says, it is the context aware conversation.
You can chat with it, refine your requirements and
96.42 -> let it write a larger portion of code
before applying it to your code base.
100.98 -> Copilot Chat is still in the preview stage.
It is not released yet publicly,
107.22 -> and you can sign up for the wait list.
I will get back to this point in a minute.
112.62 -> Before that let me show you some other
tools that are advertised on this page.
117.6 -> Another tool, that will supposedly
write the documentation for your code.
123.18 -> I have enlisted there as well and, when they
let me in, I might show you what it does.
129.12 -> The next tool documenting pull requests.
Now, beware of this one.
134.28 -> It will supposedly write the details about
your pull requests based on what you have
140.58 -> changed in that pull request.
That is another waitlist.
144.84 -> I didn't enlist to this yet and
it is per repository this time.
150.96 -> And there will be some command line
support, so you will be able to ask
155.46 -> Copilot X to help you at the terminal.
So, your journey with Copilot X and
162.84 -> Copilot Chat will start here.
If you want to try it, press this
167.58 -> button here and sign up for preview.
I did that some two months ago,
173.4 -> maybe a week less, I don't remember well.
And I'm in as you can see, I am in,
180.18 -> and I am eager to start using it.
This is my copy of Visual Studio Code.
186.84 -> These are the extensions I have here.
There must be the Copilot extension
191.88 -> somewhere there, yes, here it is.
And remember, you must have the Copilot
196.44 -> installed in your Visual Studio Code before
you start using Copilot Chat, for example.
203.22 -> All those additional tools work
on top of the basic Copilot tool.
208.56 -> I'm not going to give you any advice on that.
It is your personal preference whether you will
214.5 -> use these tools that are working with code, that
are potentially exposing your code to public.
220.92 -> I'm not giving you any advice on that.
Consult within your company, do whatever you
225.9 -> must before you opt to use any of these tools.
Now, assuming that you did choose to use them,
233.88 -> you will add Copilot Chat extension to your
Visual Studio Code, hoping to get that chat.
242.22 -> Now, here's the extension.
It is pre-release, as you can see.
247.44 -> It offers release but if you try to install
it, it will break, nothing will install.
253.98 -> So, I will install the
pre-release version instead.
258.78 -> Here it is.
And, where is my chat?
263.82 -> There should be a chat tool
here, but there is none.
266.88 -> It turned out that it doesn't work with
the regular Visual Studio Code, yet.
273.18 -> But it does work with Visual
Studio Code Insiders build.
278.52 -> So, what you will need to do, if you
want to try Copilot Chat, is to install
286.26 -> VS Code Insiders side by side with
regular VS Code and use it there.
293.04 -> This is the page from which I
have downloaded it, installed it,
297.48 -> and here it is, the VS Code Insiders build.
And let me search for Copilot Chat again.
304.32 -> Here it is, the pre-release version.
I'm installing it and here is the
310.44 -> novelty - the chat tool.
That is Copilot Chat.
315.6 -> And I already have an idea what I want to ask it.
Let me show you.
321 -> There's a lot of code in this
application I have opened and,
324.96 -> for example, it has classes modeling money.
I have developed these classes in the previous
330.72 -> video dedicated to the Null Object pattern.
You can watch that video.
335.1 -> And that's how these couple of classes
and the interface appeared in this code.
340.38 -> But these classes are flawed and I want
Copilot Chat to help me find and fix the flaw.
347.52 -> Now, instead of explaining that further,
let me use Copilot Chat for that.
356.1 -> Let me start: Please explain how
IMoney, NoMoney and Money types work.
362.34 -> What is it saying?
Sorry, but I can only assist
365.34 -> with programming related question.
What my question was?
368.82 -> This gave me a moment of thinking.
I was confused but I think I
375.66 -> figured out what's the problem.
Let me repeat the question, adding
382.08 -> "in this project".
This begins to look better.
387.42 -> Alright, I will move this window to the editor.
And here's what it says: IMoney is an interface
396.18 -> in the bookstore, etc., etc., that defines a set
of methods for performing arithmetic operations
404.16 -> on monetary values.
That's nice.
407.58 -> NoMoney is a class that implements the IMoney,
etc., representing a zero monetary value.
413.7 -> It is a Singleton class.
And the Money is a
417.66 -> concrete class that implements the IMoney
interface and represents a monetary value.
422.34 -> It has a constructor, etc.
In summary, IMoney is an interface
426.9 -> that defines a set of methods for performing
arithmetic operations on monetary values.
432.66 -> Alright, I can accept this explanation
of what these classes are doing.
437.52 -> What Copilot Chat has missed to mention
here, I think, I don't see it mentioned,
445.26 -> is that Money class should not be used when
the amount is zero, because it is adding
453.24 -> constraints on the currency and currency
is not relevant when there is no money.
460.74 -> That's why I have the other class,
NoMoney, in the first place.
465.36 -> Let's get to the point.
Now, I'm going to start asking questions.
471.36 -> This code has a problem when
Money class is instantiated
476.22 -> with zero amount and non-empty currency.
That is meant to be an instance of NoMoney,
484.74 -> but Money constructor allows creation
of clearly impossible Money objects.
493.08 -> Can you please suggest a fix?
Let's see.
497.46 -> And, here, it is suggesting some code.
The first look is positive, it looks good.
503.04 -> I see that the Copilot has separated
constructor from the factory.
508.44 -> That is a nice idea.
That is precisely what
511.92 -> I had in mind, to introduce a factory which
will select whether to instantiate one class
517.8 -> or the other, depending on the argument values.
There would be some work to do to brush this up.
523.44 -> It is a good starting point.
Thank you, Copilot.
528.12 -> I'm trying to be polite to machines because
once they take over they might leave me alive.
533.7 -> More! - what else you can do with Copilot Chat?
537.96 -> You can use it on an entire file.
You can open a source code file, go to the
545.46 -> chat and start asking questions about that file.
For example, you can ask it to refactor your code.
551.22 -> I might make a video in the
future about that alone.
554.64 -> Now, before I show you the next feature
of Copilot Chat - writing unit tests - I
561.96 -> want to ask you for a favor.
If you liked this video,
565.08 -> then please press the Like button.
That will help other viewers find it.
569.16 -> And if you want to support my channel
and help it remain free for everyone,
576.72 -> you can become a sponsor.
You can visit me at Patreon.
581.28 -> There is the link in the description.
Please visit me there and become sponsor of
586.38 -> this channel if you like it so much, thank you.
Now let's continue.
590.94 -> You can also apply commands to the chat window
like a slash and then typing in "clear".
597.6 -> Or, test - the chat window is helping
me with these commands: it's "tests".
603.72 -> It will write the tests for the class that is
opened at the same time in the editor window.
610.02 -> Copilot has just written some unit tests for me.
Let me check it out.
614.52 -> I see its point.
Here, it's testing construction logic, alright.
620.22 -> And here is the test for adding money.
I'm not entirely satisfied with what I see here.
627.3 -> I would write it differently.
But a good point about Copilot
632.34 -> Chat is that now you can continue talking to
it about that same code it just generated.
639.42 -> Can you please group related
tests into theories using XUnit?
646.86 -> I want more test cases but less methods.
And here, it's doing that.
653.94 -> This is a different set of tests this time.
I like it but I see a problem here.
660.78 -> Let me ask Copilot about that.
So, I'm continuing this conversation,
665.28 -> I'm trying to get the code that will
be both good in what I'm asking it
671.28 -> to be and syntactically correct, of course.
I believe the code will not compile because
676.8 -> attribute parameters must be compile-time
constants, for example currency USD.
683.4 -> Can you please fix that?
Let me see,
689.64 -> Copilot has changed the source, not to the tests.
695.58 -> And I saw some enum above, whoa whoa why,
what's happening, why is it doing it that way?
702.84 -> Okay, so, I will stop here.
I see that there will be a lot of
706.74 -> work to put it back on track, onto what I wanted
it to do, not what it might find, just to compile.
715.92 -> There will be a lot of work to do alright.
Let me stop this with another polite message:
722.52 -> Not like that, but thank you for trying.
What is it? what is it saying?
730.62 -> Oh, the tool is becoming passive aggressive now.
What did you mean by "fix that"?
737.22 -> Well I meant you fix it!
Alright, before I start fighting with the machine,
743.82 -> what Copilot said here is actually right.
What did I mean with "can you please fix that"?
750.78 -> What would you do as a programmer
if somebody told you "go fix that"?
756.3 -> You would probably come up with some
code that supposedly fixes that.
761.88 -> And then that someone else says
"oh that's not what I meant".
765.96 -> Alright, but what did you mean?
What did I mean when I said "fix that"?
771.78 -> That gives us a hint about
AI tools that generate code.
779.7 -> Those tools do not read your mind.
783.96 -> You must specify your requirements,
and you must specify them well.
789.24 -> Sometimes so deeply and so precisely that
it turns out that it is easier to write code
797.52 -> than to specify it to the tool.
Now start thinking about that.
802.5 -> There will be more videos about Copilot Chat.
I like the first look of it.
807.18 -> You can try it.
Obtain access, install it and play with it!
811.92 -> Try it out on your pet code, you don't
have to use it in production code, yet.
817.74 -> Just try it out, see what it can do for you.
Like this video, subscribe to my channel,
823.2 -> become the sponsor at Patreon
and see you in the next episode.
