Juho Teperi <juho.tep...@iki.fi> writes:
> I have tried to describe how to set Clojure version with Boot
> here: https://github.com/boot-clj/boot/wiki/Setting-Clojure-version
Yes, I'm using that now, i.e., I set BOOT_CLOJURE_VERSION in
boot.properties. Is there a way to access that from my build.boot so
that I can do something like
:dependencies `[[org.clojure/clojure
~(System/getenv "BOOT_CLOJURE_VERSION")]
...]
Apparently, that returns nil and so does System/getProperty for
"BOOT_CLOJURE_VERSION" or "boot.clojure.version".
> It should also explain why the duplication is required.
Well, it explains why I have to have it in my :dependencies but not why
I also need to have BOOT_CLOJURE_VERSION. Of course, there's a
technical reason in that build.boot's evaluation already requires
clojure to be up and running but it wouldn't be overly complicated to
check if there's a declared clojure dep with just some shell processing.
While we are at it: why do I also need to pin the boot version when
using a boot.properties?
And what's the thing with :scope "provided"? IIUC, this means that apps
depending on my lib won't incorporate my lib's clojure dep transitively.
But is that really what I want? I mean, I use transducers so some
flavor of clojure 1.7.0 is a strict requirement. I don't really want to
dictate a specific version, i.e., 1.7.0-beta* or later would be fine.
But with :scope "provided" any app depending on my lib would just use
1.6.0 by default if I understand correctly, and that will simply not
work. With the explicit (non-provided scope) declarations, users are
still able to use whatever clojure 1.7 version they want using
:exclusions, no?
Bye,
Tassilo
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