https://github.com/piotrjustyna/binoculars
https://github.com/piotrjustyna/binoculars
Last synced: 7 months ago
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- Host: GitHub
- URL: https://github.com/piotrjustyna/binoculars
- Owner: PiotrJustyna
- Created: 2021-12-17T21:58:30.000Z (almost 4 years ago)
- Default Branch: main
- Last Pushed: 2022-02-03T09:44:38.000Z (over 3 years ago)
- Last Synced: 2025-01-11T16:38:59.500Z (9 months ago)
- Language: C#
- Size: 453 KB
- Stars: 2
- Watchers: 2
- Forks: 1
- Open Issues: 0
-
Metadata Files:
- Readme: readme.md
Awesome Lists containing this project
README
# readme
This is a quick project to test how `dotnet watch` works in order to determine whether it would be a good candidate for code hot swapping. Sample usage: https://docs.microsoft.com/en-us/aspnet/core/tutorials/dotnet-watch?view=aspnetcore-6.0
Tu run:
```
dotnet watch run --project BinocularsHost/BinocularsHost.fsproj
```
## conclusion
The tool is not for hot-swapping dependencies written in F#. It does however works correctly for C# code. Further explanation:
1. C# host + F# library: cold swap
2. C# host + C# library: **hot swap**
3. F# host + F# library: cold swap
## illustrations
C# host + F# library or F# host + F# library:
```
watch : Started
0. PID: 3798 - Hello, Piotr!
1. PID: 3798 - Hello, Piotr!
watch : File changed: /Users/justpi01/Documents/code/binoculars/BinocularsLib/Library.fs.
watch : Do you want to restart your app - Yes (y) / No (n) / Always (a) / Never (v)?
2. PID: 3798 - Hello, Piotr!
3. PID: 3798 - Hello, Piotr!
4. PID: 3798 - Hello, Piotr!
watch : Hot reload suspended. To continue hot reload, press "Ctrl + R".
5. PID: 3798 - Hello, Piotr!
watch : Building...
BinocularsLib -> /Users/justpi01/Documents/code/binoculars/BinocularsLib/bin/Debug/net6.0/BinocularsLib.dll
BinocularsHostCS1 -> /Users/justpi01/Documents/code/binoculars/BinocularsHostCS1/bin/Debug/net6.0/BinocularsHostCS1.dll
watch : Started
0. PID: 3817 - Hello, Piotr!!
1. PID: 3817 - Hello, Piotr!!
2. PID: 3817 - Hello, Piotr!!
```
C# host + C# library:
```
watch : Started
0. PID: 3503 - Hello, Piotr!!
1. PID: 3503 - Hello, Piotr!!
watch : File changed: /Users/justpi01/Documents/code/binoculars/BinocularsLibCS/Library.cs.
2. PID: 3503 - Hello, Piotr!!
3. PID: 3503 - Hello, Piotr!!
4. PID: 3503 - Hello, Piotr!!
watch : Hot reload of changes succeeded.
5. PID: 3503 - Hello, Piotr!
6. PID: 3503 - Hello, Piotr!
7. PID: 3503 - Hello, Piotr!
8. PID: 3503 - Hello, Piotr!
```
## post mortem
There is one idea I still want to try. What I've been trying so far was hot reloads triggered by changes to the source code of the dependencies. I want to explore running a published version of the host (C#) with a watch and dropping in a compiled F# dll. Let's see if that works and that is what I'm currently exploring.