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[bug#40373] [PATCH] guix: new command "guix run-script"

From: zimoun
Subject: [bug#40373] [PATCH] guix: new command "guix run-script"
Date: Thu, 23 Apr 2020 16:41:03 +0200

Hi Konrad,

On Thu, 23 Apr 2020 at 12:13, Konrad Hinsen <address@hidden> wrote:

> > Why not simply add an option to "guix repl"?
> > For example "--batch", mimicking  "emacs --batch".
> > Or "--script".
> Do you have a suggestion for explaining such a command to someone who
> want to run a script bu (1) doesn't know what a REPL is, (2) doesn't
> need to know what a REPL is, (3) would be mystified by the behavior
> resulting from forgetting the –script argument?

If I understand well
     guix run-script file1 file2
is becoming:
    guix repl --script=file1,file2,...

Well, I would say that

--8<---------------cut here---------------start------------->8---
the keyword "repl" stand for Read-Eval-Print-Loop
therefore the command will:
  - read the script file1,
  - eval it,
  - print the results if they are,
  - and finally loop if there is more than one script file.
--8<---------------cut here---------------end--------------->8---

this fills the condition (1) and (2); at least to me. ;-)

I agree that forgetting the argument '--script' could mystified the learner.

But applying the same principles, the command
    guix environment --ad-hoc python -- python
could mystified the learner too, if for example they forgets --ad-hoc
or '-- python'.

Well, this kind of disconcerting "mistakes" is part of the learning
process, IMHO.
Others call that "discoverability". ;-)

> I agree of course that naming is hard, but it is also important.  Git
> should be a sufficient demonstration of what happens when you design
> command-line interfaces by a sequence of cumulative least-effort
> decisions.

I agree.
And I still have in my stack how to propose another CLI naming as we
discussed earlier, e.g.,
    environment, package, etc.
reorganized into
  profile, install, search, etc.


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