5 ms·

What to expect from Compojure 0.4.0

33 points by icey 17y ago

j_baker 17y ago
I actually find statements like this scary. There's just a lot to be said about knowing that installing the next version of a framework like this won't horribly break your code. But then again, maybe I'm expecting too much from a 0.4.0 release.
- runevault 17y ago
  Yeah I started out feeling this way, but sometimes you have to break stuff to get a good final result. Once he hits 1.0 hopefully weavejester will be less prone to such massive breakage ;-)
  - weavejester 17y ago
    Yep. Before 1.0, backward compatibility may be broken between each minor version. But after 1.0, backward compatibility will only be broken between each major version - or at least, that's the plan.
brehaut 17y ago
While I'm happy that the library is being broken down into smaller pieces, I am left wondering what is left in Compojure itself. Http is handled by ring, html is its own lib, routing is its own lib. Can someone clarify what the library provides now?
- icey 17y ago
  It doesn't seem like much will be left. Glue code, and maybe session stuff?
- weavejester 17y ago
  From 0.4.0 onward, the main functionality of Compojure will be to provide a routing concise DSL: (GET "/books/:isbn" [isbn] (show-book isbn)) This actually produces a fairly complex handler function, so there's still a fair bit of Compojure-specific code left. But it's true that Compojure will be a significantly more lightweight framework than it currently is.
  - brehaut 17y ago
    Thanks for the clarification. I had been confused through a lack of understanding about where compojure's handler functions stopped and clout's routing started.
    - weavejester 17y ago
      Clout just handles the parsing of a string like "/books/:isbn" into a structure that can be matched against a URI (internally represented as a regex and a vector of keywords).
      - brehaut 17y ago
        Will compojure let you specify an alternative route parsing/handling library via a binding, protocol or similar?
        weavejester 17y ago
        Theoretically, so long as that library produces the same output as Clout. This means the route needs to be able to be specified as a regular expression.
mcav 17y ago
This strongly resembles Pylons' approach: Break core components into separate projects, so that each can evolve more quickly and so that one can use the best component for each area.
jackowayed 17y ago
PG really should add google.com to the list of domains that have their subdomains shown. It's so mysterious as is. EDIT: realized that really I should have put this in the feature requests. Someone requested it 68 days ago and it's currently #2 on there. Wonder if there's a reason he's ignoring it or if he just hasn't looked recently. In any case, if you agree, upvote the suggestion: http://news.ycombinator.com/item?id=996374 http://news.ycombinator.com/item?id=996374
Raphael_Amiard 17y ago
I love the new routing syntax, almost as much as i feel uncomfortable with the current one. I have quite a big project running on compojure so i wonder if i'm gonna convert my code.

33 points by icey 17y ago

I actually find statements like this scary. There's just a lot to be said about knowing that installing the next version of a framework like this won't horribly break your code. But then again, maybe I'm expecting too much from a 0.4.0 release.

runevault 17y ago
Yeah I started out feeling this way, but sometimes you have to break stuff to get a good final result. Once he hits 1.0 hopefully weavejester will be less prone to such massive breakage ;-)
- weavejester 17y ago
  Yep. Before 1.0, backward compatibility may be broken between each minor version. But after 1.0, backward compatibility will only be broken between each major version - or at least, that's the plan.

brehaut 17y ago

While I'm happy that the library is being broken down into smaller pieces, I am left wondering what is left in Compojure itself. Http is handled by ring, html is its own lib, routing is its own lib. Can someone clarify what the library provides now?

icey 17y ago
It doesn't seem like much will be left. Glue code, and maybe session stuff?
weavejester 17y ago
From 0.4.0 onward, the main functionality of Compojure will be to provide a routing concise DSL: (GET "/books/:isbn" [isbn] (show-book isbn)) This actually produces a fairly complex handler function, so there's still a fair bit of Compojure-specific code left. But it's true that Compojure will be a significantly more lightweight framework than it currently is.
- brehaut 17y ago
  Thanks for the clarification. I had been confused through a lack of understanding about where compojure's handler functions stopped and clout's routing started.
  - weavejester 17y ago
    Clout just handles the parsing of a string like "/books/:isbn" into a structure that can be matched against a URI (internally represented as a regex and a vector of keywords).
    - brehaut 17y ago
      Will compojure let you specify an alternative route parsing/handling library via a binding, protocol or similar?
      - weavejester 17y ago
        Theoretically, so long as that library produces the same output as Clout. This means the route needs to be able to be specified as a regular expression.

mcav 17y ago

This strongly resembles Pylons' approach: Break core components into separate projects, so that each can evolve more quickly and so that one can use the best component for each area.

jackowayed 17y ago

PG really should add google.com to the list of domains that have their subdomains shown. It's so mysterious as is. EDIT: realized that really I should have put this in the feature requests. Someone requested it 68 days ago and it's currently #2 on there. Wonder if there's a reason he's ignoring it or if he just hasn't looked recently. In any case, if you agree, upvote the suggestion: http://news.ycombinator.com/item?id=996374 http://news.ycombinator.com/item?id=996374

Raphael_Amiard 17y ago

I love the new routing syntax, almost as much as i feel uncomfortable with the current one. I have quite a big project running on compojure so i wonder if i'm gonna convert my code.