Does lein-ring support reload changed namespaces somehow?

[ertugrulcetin]

When I add a new namespace to my project or change couple of those my ring application throws an exception that says namespace couldn't be found.I can see changes when I don't touch the namespaces which is very cool but I also want to see the changes when I change (add/delete/update) namespaces.

Does lein-ring support this built in with some configuration?

[weavejester]

Adding namespaces work the same way; it's likely that you're just trying to access the namespace without an associated require.

[ertugrulcetin]

Yeah I need to restart lein app when I introduce new namespace or change one of them, is there any chance to do some adjustment and make this namespace loading automatically?

[weavejester]

It should automatically load by default. Could you give some more information about this issue? So for instance:

• What does the error say?
• What is the stacktrace?
• What does your ns declaration look like of both the file being loaded, and the file doing the loading?
• What are the filenames (perhaps you've added a - instead of an _)?
• Is your project open source, or can you create a project that demonstrates the problems you're having?
• What version of Lein-Ring are you using?
• What does your lein deps :tree output look like?

[ertugrulcetin]

I was using "0.11.0" but now updated to "0.12.0" and it works I could not reproduce now.
I'm going to try to reproduce , if it happens again I will provide all information you need.Thank you so much for the quick response.

[ertugrulcetin]

@weavejester I think the problem is Clojure.I'm getting Compiler exception:
Alias auth already exists

reproduce steps:
first I have this ->[cl.controller.auth :as auth]
after I change this to that-> [cl.controller.auth-service :as auth]

I guess Clojure caches the first cl.controller.auth namespace's alias which is auth. Then I refactor(rename) the cl.controller.auth to cl.controller.auth-service so I get that exception.

Is there any way to unalias the alias and redefine it?

This is the reason why I have to restart the app.

[MichaelBlume]

Personally I like to use the reload function from https://github.com/clojure/tools.namespace but it's a very big hammer and it's some work to be sure your code will cooperate with it

…

On Sat, Jun 17, 2017, 9:21 AM Ertuğrul Çetin ***@***.***> wrote: @weavejester <https://github.com/weavejester> I think the problem is Clojure.I'm getting Compiler exception: Alias auth already exists reproduce steps: first I have this ->[cl.controller.auth :as auth] after I change this to that-> [cl.controller.auth-service :as auth] I guess Clojure caches the first *cl.controller.auth* namespace's aliases which is auth. Then I refactor(rename) the *cl.controller.auth* to *cl.controller.auth-service* so I get that exception. Is there any way to unalias the alias and redefine it? This is the reason why I have to restart the app. — You are receiving this because you are subscribed to this thread. Reply to this email directly, view it on GitHub <#187 (comment)>, or mute the thread <https://github.com/notifications/unsubscribe-auth/AAMv1eOU9oDdnNUwWpQTPdeMfL52QmErks5sE_0MgaJpZM4N53aV> .

[ertugrulcetin]

@weavejester any updates regarding that comment?

[weavejester]

Updates in what respect? Lein-Ring uses Clojure's reload mechanism, which won't work in the case where you're trying to overwrite an existing namespace alias. It doesn't currently make use of refresh in tools.namespace, with might solve the issue. A workaround is to run ns-unalias manually.

[ertugrulcetin]

got it thank you so much!