No "clojure --version" switch

[Alan Thompson]

Seems we should have the "--version" switch that is pretty universal.  Right now, the best one can do is 

> clojure --eval "(clojure-version)"

"1.10.0"

which is hard for a new user to figure out.  Jira ticket?

Alan

[se...@corfield.org]

Or just type:

 

              clojure

or:

              clj

 

And it announces the version and starts a REPL – which is documented usage.

 

I think one of the “issues” here is that clojure / clj are scripts that have an inherent version behind them (clojure -Sdescribe) but the version of Clojure that they run with is context-dependent. deps.edn can specify any Clojure back to … Clojure 1.1 it seems:

 

seanc@DESKTOP-QU2UJ1N:~$ clojure -Sdeps '{:deps {org.clojure/clojure {:mvn/version "1.1.0"}}}'

Clojure 1.1.0

user=> *clojure-version*

{:major 1, :minor 1, :incremental 0, :qualifier ""}

user=>

 

Given that, I think that a –version option on clojure would be misleading since it is not reporting the version of the clojure / clj scripts.

 

Sean Corfield -- (970) FOR-SEAN -- (904) 302-SEAN
An Architect's View -- http://corfield.org/

"If you're not annoying somebody, you're not really alive."
-- Margaret Atwood

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[Jesús Gómez]

Just as an example of how other language manage that difference between REPL and the Interpreter: Ruby...

 $ irb -v
 irb 0.9.6(09/06/30)

 $ ruby -v
 ruby 2.1.3p242 (2014-09-19 revision 47630) [x86_64-linux]

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[Alex Miller]

I would echo the other comments here. What user question are we trying to answer? The scripts are not written in Clojure, but use a Clojure program to compute the classpath, then launch your Clojure program. The version used for the first is largely irrelevant to you and probably more confusing than useful.

Having a helper for the version used in the second is possibly useful and would be happy to consider that. This could be done either in clojure.main (CLJ) or in the Clojure scripts (TDEPS). I guess I would probably lean towards the former.

[Alex Miller]

Actually, reporting the Clojure AND Java version would be even better.

> On May 8, 2019, at 6:31 AM, Alex Miller <al...@puredanger.com> wrote:
>
> I would echo the other comments here. What user question are we trying to answer? The scripts are not written in Clojure, but use a Clojure program to compute the classpath, then launch your Clojure program. The version used for the first is largely irrelevant to you and probably more confusing than useful.
>
> Having a helper for the version used in the second is possibly useful and would be happy to consider that. This could be done either in clojure.main (CLJ) or in the Clojure scripts (TDEPS). I guess I would probably lean towards the former.
>

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[Alan Thompson]

Jira CLJ-2508 created.

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[Alex Miller]

Thanks!

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