LILio·Aug 7, 2024
It would be interesting to see a comparison to Zeitwerk[1]
Zeitwerk also supports reloading and is near enough a standard for Ruby.
1. https://github.com/fxn/zeitwerk
In Ak: Easily hot reload your Ruby appfxn
zeitwerk
Ruby2019–2024
fxn / zeitwerk
zeitwerk
Efficient and thread-safe code loader for Ruby
5Distinct people
5Mentions
0Explicit recommenders
2.1KGitHub stars
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What it is
Efficient and thread-safe code loader for Ruby
GitHub
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HN mentions by year5 dated mentions
Observed mentions: 2019-08-16 20:02:24 UTC to 2024-08-07 08:22:33 UTC.
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View mention counts and date ranges
| Period | Start (UTC) | End (exclusive, UTC) | Mentions | Submissions | Comments |
|---|---|---|---|---|---|
| 2019 | 2019-01-01 00:00:00 UTC | 2020-01-01 00:00:00 UTC | 2 | 1 | 1 |
| 2020 | 2020-01-01 00:00:00 UTC | 2021-01-01 00:00:00 UTC | 0 | 0 | 0 |
| 2021 | 2021-01-01 00:00:00 UTC | 2022-01-01 00:00:00 UTC | 0 | 0 | 0 |
| 2022 | 2022-01-01 00:00:00 UTC | 2023-01-01 00:00:00 UTC | 2 | 0 | 2 |
| 2023 | 2023-01-01 00:00:00 UTC | 2024-01-01 00:00:00 UTC | 0 | 0 | 0 |
| 2024 | 2024-01-01 00:00:00 UTC | 2025-01-01 00:00:00 UTC | 1 | 0 | 1 |
What Hacker News says
5 sourcesThere is a gem that does that used by Rails and multiple other gems:
https://github.com/fxn/zeitwerk
It is pretty easy to set it up in any Ruby project.
In To Ruby from PythonI actually prefer auto-loading, which lets you iterate through a package manager much easier/faster - PHP iterated through PSR-0[0] before landing on PSR-4[1], and you can always build your own (which is what most frameworks pre-composer were doing).
With Rails 7 and Zeitwerk, the Ruby community has landed on a very similar auto-loading system as PHP now[2] with constants translating to paths by convention.
[0]: https://github.com/php-fig/fig-standards/blob/master/accepte...
[1]: https://www.php-fig.org/psr/psr-4/
[2]: https://github.com/fxn/zeitwerk#the-idea-file-paths-match-co...
In PHP – The Right WayZeitwerk, a Code Loader for Ruby
1 points · Open discussionSure, I'll give it a shot.
Ruby classes usually need to explicitly require the other classes and modules which they use. Rails implemented a different way to achieve requiring dependencies using a method called "const_missing" which requires the missing dependent when it is not found in the known constant list.
The problem with this is that if your classes and modules do not adhere to a strict arrangement within your source code directories then Rails can sometimes not find the file you are looking for, or worse find the wrong file.
Since "require" has an effect on the loaded constant namespace, the order of requiring dependencies can make a difference in the presence of bugs related to which code has been required.
There's more information here: https://github.com/fxn/zeitwerk#motivation
In Rails 6.0