Seems that’s some thing that can also be put into the :dev profile, no?

If tools.reader specified a version of in the :dev profile, then that’ll be the version used when developing it, but won’t be included in the artifact--or am I wrong about that?

if it was in the dev profile it wouldnt’ be available while building a jar for example - it might need to use cljs to package

another example being running tests

Pretty sure tests make use of :dev profile…

oh you’re right, sorry

>The :provided profile is used to specify dependencies that should be available during jar creation, but not propagated to other code that depends on your project. These are dependencies that the project assumes will be provided by whatever environment the jar is used in, but are needed during the development of the project. This is often used for frameworks like Hadoop that provide their own copies of certain libraries.

it’s specifically about things used while creating a jar that shouldn’t go in the jar https://github.com/technomancy/leiningen/blob/master/doc/PROFILES.md

R.e. , I’m not sure why is "provided", but isn’t: https://github.com/clojure/tools.reader/blob/tools.reader-1.1.1/project.clj#L10

Wouldn’t we assume the user’s providing their own ?

leiningen special cases clojure deps iirc - since it’s the one dep that a project must always have in scope to build, but almost never something that should be transitively provided, but I’d have to double check that

I think you're technically correct that you could do everything or most things with a :dev profile instead of "provided", but it communicates the intent much better using "provided"

One is saying "This is for me to develop the library with, but is not needed for consuming this library", the other is saying "You need to provide a version of this, as I can't presume what you will have"

Yes, thanks for clearly differentiating b/t the two intents. That makes it clear

also see maven docs https://maven.apache.org/guides/introduction/introduction-to-dependency-mechanism.html#Dependency_Scope for differentiating between provided and test