C#•3y ago

✅ Need Help Finishing Up Installer C# Avalonia V11.0.2

https://pastebin.com/gNG6t3Fd

This is my current code with all the fluff text to be an example of what I want my installer to do while the loading screen is going, however, I need help with getting the rest of the stuff to happen and making this loading screen become real and put the work in behind it

Connecting to the repo
Getting the file size of the zip folder
Downloading the zip folder into memory
Getting the location of the project on the users system without needing user input
Extracting the files from the zip folder and over writing the existing files to update the program
Correctly and accurately updating the progress bar as each thing happens.

MekOP•9/3/23, 5:25 AM

my code is commented and I have each step noted as to what I believe should happen at that current step value. I just don't know how to bring it all together and make it all work like it's supposed to. Thanks in advance

JakenVeina•9/3/23, 5:27 AM

Connecting to the repo

what repo? why would your program be connecting to a code repo?

MekOP•9/3/23, 5:28 AM

did you look at the link containing my code?

JakenVeina•9/3/23, 5:28 AM

nope

MekOP•9/3/23, 5:29 AM

everything is commented within my code that follows the bullet points

JakenVeina•9/3/23, 5:30 AM

yes, you mentioned

MekOP•9/3/23, 5:30 AM

mhm

MekOP•9/3/23, 5:52 AM

the link containing my code has been throughouly commented. If anyone can help, that would be great, but I'm not going to re-explain what I've already explained throughout my code to follow the bullet points. Thanks again in advance

arion•9/3/23, 9:24 AM

Are you trying to access the assets part of the api endpoint?
Since there's multiple assets on the repo release. So the json path would be $.assets[0].browser_download_url for the

idk if this is best practise but you could download it as a JsonObject, access the ["assets"] and deserialize that as a ReleaseData[] like this

Then you should be left with a bunch of ReleaseData objects, each containing a link to their respective versions; eg.

arion•9/3/23, 9:25 AM

Additionally, I believe the method Directory.GetCurrentDirectory() uses the working directory instead of the application's location.

You could also check if the application is running when the installer is also running, maybe ask or quit the todo app

Aarion Are you trying to access the assets part of the api endpoint? Since there's mult...

MekOP•9/4/23, 12:28 AM

Are you trying to access the assets part of the api endpoint?

correct. I need to have a function that can determine what operating system the user has so that the installer can pull the correct update.

Since there's multiple assets on teh repo release. So the json path would be $.assets[0].browser_download_url for the

I'm not exactly sure on how to use this since my url is

idk if this is best practise but you could download it as a JsonObject, access the ["assets"] and deseralize that as a ReleaseData[] like this
<code snippet>

where you use can I make that a class like I did my ReleaseData? If so, how?

Then you should be left with a bunch of ReleaseData objects, each containing a link to their respective versions; eg.
<snippet>

This will help a lot with determining the users operating system. How can I go about determining what OS the user has?

MMek > Are you trying to access the assets part of the api endpoint? correct. I need ...

Angius•9/4/23, 12:29 AM

Yes, you can use a class instead of . It's even preferable

Angius•9/4/23, 12:29 AM

Look at how the API response looks, and create a class that describes it

Angius•9/4/23, 12:29 AM

With the properties you want to get

Angius•9/4/23, 12:30 AM

Alternatively, you can use something like quicktype.io to just generate classes from JSON, and either remove what you don't need, or leave it as-is

MekOP•9/4/23, 12:33 AM

ok bet ty

MMek > Are you trying to access the assets part of the api endpoint? correct. I need ...

arion•9/4/23, 12:33 AM

Seems everything's been addressed except the last part.
You can use RuntimeInformation to determine the OS

arion•9/4/23, 12:33 AM

https://cdn.discordapp.com/attachments/883435300880261120/1148052864174923856/322dafac-0e98-4dcf-9bf1-6c026bcf8b56_04-09-2023.png

arion•9/4/23, 12:38 AM

You could possibly do something like this for the deserialization of what you need:

then compare file names to OSPlatform i guess

Angius•9/4/23, 12:39 AM

Oddly enough, there doesn't seem to be a way to just get the

arion•9/4/23, 12:39 AM

I guess for the people implementing their own operating system and feeling left out

arion•9/4/23, 12:39 AM

and wanting to run C# on it

Angius•9/4/23, 12:40 AM

You can get the OS description string and the platform architecture, so I guess that's something

MekOP•9/4/23, 12:45 AM

ok so here's what I have so far

MekOP•9/4/23, 12:46 AM

https://pastebin.com/NjYLDAsQ

And then I have

MekOP•9/4/23, 12:47 AM

it doesn't like this part

arion•9/4/23, 12:47 AM

You just use it like

MekOP•9/4/23, 12:48 AM

ok doing that lead to this

arion•9/4/23, 12:48 AM

you dont need to deserialize it again, its already deserialized in _client.GetFromJsonAsync for you

MekOP•9/4/23, 12:49 AM

oh ok. my fault. thank you

arion•9/4/23, 12:49 AM

so to iterate over the releases you can now do

or alternatively

MekOP•9/4/23, 12:52 AM

is it better to iterate over the releases? or to use an if/else statement and just index the releases by name and pull the correct name of the correct zip folder?

MekOP•9/4/23, 12:54 AM

ok so I'm making an adjustment and I want your opinion

MekOP•9/4/23, 1:01 AM

arion•9/4/23, 1:07 AM

You could do

then in the GetDownloadUrl method you can do something like this

arion•9/4/23, 1:08 AM

Though I am generally against returning nulls and string.empty kinda qualifies as that here

MMek ```cs public record VersionData(string DownloadUrl, double DownloadSize); public...

arion•9/4/23, 1:09 AM

you could try that, just remember to change your ReleaseData class to include the downloadname

MMek ```cs public record VersionData(string DownloadUrl, double DownloadSize); public...

arion•9/4/23, 1:10 AM

and to make the method return a Task<VersionData> record

MMek ```cs public record VersionData(string DownloadUrl, double DownloadSize); public...

arion•9/4/23, 1:11 AM

just uh

string downUrl = data.Assets[release][data.DownloadUrl];
double downSize = data.Assets[release][data.DownloadSize];

remember its not a JsonObject, its a C# class now

MekOP•9/4/23, 1:17 AM

ok so I took all of that into consideration and made edits to match (because you're smarter than me on this stuff lol) and it's saying all code paths don't return a value?

MMek ok so I took all of that into consideration and made edits to match (because you...

Angius•9/4/23, 1:19 AM

What is returned if there's no exception, and is not ?

arion•9/4/23, 1:20 AM

MekOP•9/4/23, 1:21 AM

and if I changed to would I go do

AAngius What is returned if there's no exception, and `osReleaseData` is *not* `null`?

MekOP•9/4/23, 1:21 AM

I would suppose nothing is being returned if all conditions are true. I noticed that, and that's why I asked is that where I would have the else statement return the new VersionData and change the decorator from Task<string> to Task<VersionData>?

Angius•9/4/23, 1:22 AM

If that's what you want to return, then sure

MekOP•9/4/23, 1:22 AM

I feel like I have that wrong

MekOP•9/4/23, 1:23 AM

should it be

AAngius If that's what you want to return, then sure

MekOP•9/4/23, 1:25 AM

well I'm returning it as a record so that in the function that actually handles the zip folder can work with the data more easily. Once I've gotten getting the correct download url based off the user's os working correctly, I'll be starting the function that will handle downloading the zip folder to the current working directory, extracting the zip folder and over writing the existing files, then deleting the zip folder from the current working directory, and then showing the button and message telling the user that the update has finished and click ok to relaunch the todo app

arion•9/4/23, 1:38 AM

MekOP•9/4/23, 1:47 AM

ok bet. Thank you for that

I was a little bit off

are there any examples I can view for the remaining things that need to be done?

Download, Extract, Over write the existing files in the current working directory (update the application)
Have the application remove any files that aren't needed to run the application (Ex: delete the zip folder, )
Have the progress bar correctly and accurately update as this entire process goes along
- have progress bar incrementation start off by obtaining the amount of time it will take to download the zip folder, working through the process of updating the application, and removing the no longer needed files