Re: [PATCH] gnu: bind-utils: Build and install “nsupdate”.

[Ricardo Wurmus <ricardo.wurmus@mdc-berlin.de>]

Alex Kost <alezost@gmail.com> writes:

> Mathieu Lirzin (2016-01-14 03:46 +0300) wrote:
>
>> Hi,
>>
>> Ricardo Wurmus <ricardo.wurmus@mdc-berlin.de> writes:
>>
>>>From ba328617777728c3534be6796b6b32a9a90954b6 Mon Sep 17 00:00:00 2001
>>> From: Ricardo Wurmus <ricardo.wurmus@mdc-berlin.de>
>>> Date: Wed, 13 Jan 2016 16:06:36 +0100
>>> Subject: [PATCH] gnu: bind-utils: Build and install "nsupdate".
>>>
>>> * gnu/packages/dns.scm (bind-utils)[arguments]: Generalize "build" and
>>>   "install" phases.
>>> ---
>>>  gnu/packages/dns.scm | 105 ++++++++++++++++++++++++++++-----------------------
>>>  1 file changed, 58 insertions(+), 47 deletions(-)
>>>
>>> diff --git a/gnu/packages/dns.scm b/gnu/packages/dns.scm
>>> index 8357dad..0a42722 100644
>>> --- a/gnu/packages/dns.scm
>>> +++ b/gnu/packages/dns.scm
>> [...]
>>> +      (arguments
>>> +       `(#:tests? #f ; no test phase implemented
>>> +         #:configure-flags
>>> +         (list (string-append "--with-openssl="
>>> +                              (assoc-ref %build-inputs "openssl"))
>>> +               (string-append "--with-dlz-mysql="
>>> +                              (assoc-ref %build-inputs "mysql"))
>>> +               (string-append "--with-pkcs11="
>>> +                              (assoc-ref %build-inputs "p11-kit")))
>>
>> What about:
>>
>>        #:configure-flags
>>        (map (lambda (opt val)
>>               (string-append opt (assoc-ref %build-inputs val)))
>>             '("--with-openssl=" "--with-dlz-mysql=" "--with-pkcs11=")
>>             '("openssl" "mysql" "p11-kit"))
>
> As for me, I prefer the original variant as it looks more clear for me.
> When I look at this (map ...), I need some time to understand what it
> does.

I didn’t change this.  I only adjusted the indentation.  I have a slight
preference for keeping it the way it is.

>>> +         #:modules ((srfi srfi-1)
>>> +                    (srfi srfi-26)
>>> +                    ,@%gnu-build-system-modules)
>>> +         #:phases
>>> +         (modify-phases %standard-phases
>>> +           (replace 'build
>>> +             (lambda _
>>> +               (fold (lambda (dir pass)
>>> +                       (and pass (zero? (system* "make" "-C" dir))))
>>> +                     #t
>>> +                     (append
>>> +                      (map (cut string-append "lib/" <>)
>>> +                           (list ,@libs))
>>> +                      (map (cut string-append "bin/" <>)
>>> +                           (list ,@bins))))))
>>> +           (replace 'install
>>> +             (lambda _
>>> +               (fold (lambda (dir pass)
>>> +                       (and pass (zero? (system* "make" "-C" dir "install"))))
>>> +                     #t
>>> +                     (map (cut string-append "bin/" <>)
>>> +                          (list ,@bins))))))))
>>
>> and this:
>>
>>        (let ((libs '("dns" "isc" "bind9" "isccfg" "lwres"))
>>              (bins '("dig" "nsupdate")))
>>          (modify-phases %standard-phases
>>            (replace 'build
>>              (lambda _
>>                (every (lambda (dir)
>>                         (zero? (system* "make" "-C" dir)))
>>                       (append (map (cut string-append "lib/" <>) libs)
>>                               (map (cut string-append "bin/" <>) bins)))))
>>            (replace 'install
>>              (lambda _
>>                (every (lambda (dir)
>>                         (zero? (system* "make" "-C" dir "install")))
>>                       (map (cut string-append "bin/" <>) bins))))))))
>>
>
> I also think 'every' is more suitable here.

I agree, this looks nicer.  Would you like to push this change?  There
isn’t much left of my original patch ;)

~~ Ricardo