bug#66393: [PATCH] Make package-vc-install-from-checkout NAME argument optional

[Joseph Turner via "Bug reports for GNU Emacs, the Swiss army knife of text editors" <bug-gnu-emacs@gnu.org>]

Philip Kaludercic <philipk@posteo.net> writes:

> Joseph Turner <joseph@breatheoutbreathe.in> writes:
>
>> Tags: patch
>>
>> The purpose of this change is to simplify the noninteractive usage of package-vc-install-from-checkout.
>>
>> From cfdd990c6e00decff370e5f224d60862c13be309 Mon Sep 17 00:00:00 2001
>> From: Joseph Turner <joseph@breatheoutbreathe.in>
>> Date: Sat, 7 Oct 2023 11:38:43 -0700
>> Subject: [PATCH] Make package-vc-install-from-checkout NAME argument optional
>>
>> * lisp/emacs-lisp/package-vc.el (package-vc-install-from-checkout):
>> Allow nil NAME; update documentation.
>> ---
>>  lisp/emacs-lisp/package-vc.el | 12 +++++-------
>>  1 file changed, 5 insertions(+), 7 deletions(-)
>>
>> diff --git a/lisp/emacs-lisp/package-vc.el b/lisp/emacs-lisp/package-vc.el
>> index c7a30736e32..e47deca6d7a 100644
>> --- a/lisp/emacs-lisp/package-vc.el
>> +++ b/lisp/emacs-lisp/package-vc.el
>> @@ -841,18 +841,16 @@ for the last released version of the package."
>>      (find-file directory)))
>>
>>  ;;;###autoload
>> -(defun package-vc-install-from-checkout (dir name)
>> +(defun package-vc-install-from-checkout (dir &optional name)
>>    "Set up the package NAME in DIR by linking it into the ELPA directory.
>> +NAME defaults to the base name of DIR.
>>  Interactively, prompt the user for DIR, which should be a directory
>>  under version control, typically one created by `package-vc-checkout'.
>>  If invoked interactively with a prefix argument, prompt the user
>> -for the NAME of the package to set up.  Otherwise infer the package
>> -name from the base name of DIR."
>> +for the NAME of the package to set up."
>>    (interactive (let ((dir (read-directory-name "Directory: ")))
>> -                 (list dir
>> -                       (if current-prefix-arg
>> -                           (read-string "Package name: ")
>> -                         (file-name-base (directory-file-name dir))))))
>> +                 (list dir (when current-prefix-arg
>
> This looks fine, I'm just going to replace the `when' with a `and', ok?

Sure!

>> +                             (read-string "Package name: ")))))
>>    (unless (vc-responsible-backend dir)
>>      (user-error "Directory %S is not under version control" dir))
>>    (package-vc--archives-initialize)