Re: Troubles building "nimble" with nim

[Trev]

Efraim Flashner <efraim@flashner.co.il> writes:

>
> try changing this to "stdlib_osproc.nim.c"
>

I am not sure how I missed this with grep, but I clearly did. I am able
to finish the build :D

I just need to tell the install step to move the additional binaries.

Thanks for your help!

> On Wed, Jul 06, 2022 at 10:57:08AM -0700, Trev wrote:
>> 
>> Hello Guix!
>> 
>> I am in the weeds while trying to properly build "nimble", the package
>> manager that is included with the nim programming language. The current
>> guix package (gnu/packages/nim) completely misses this build step. I
>> wonder if previous contributors also struggled with this.
>> 
>> For some context I am attempting to directly replicate these steps from
>> https://nim-lang.org/install_unix.html:
>> 
>> #+BEGIN_QUOTE
>> sh build.sh
>> bin/nim c koch
>> ./koch boot -d:release
>> ./koch tools
>> #+END_QUOTE
>> 
>> My (and the current package record) can build the nim binary using gcc, no 
>> problem. However when we get to the part where nim builds its own features 
>> with the compiled compiler, something seems to be trying to call =/bin/sh= 
>> directly, despite hard-coded references to that process having been been 
>> substituted out.
>> 
>> I have submitted a ticket with Nim here just so that I may ask some 
>> thoughtful questions. That conversation is here: 
>> https://github.com/nim-lang/Nim/issues/19976
>> 
>> The error output is:
>> 
>> #+BEGIN_SRC sh
>> c_code/2_2/stdlib_browsers.nim.o c_code/2_2/@mnim.nim.o -ldl -lm -lrt
>> : SUCCESS
>> Hint: used config file 
>> '/tmp/guix-build-nim-1.6.6.drv-0/nim-1.6.6/config/nim.cfg' [Conf]
>> Hint: used config file 
>> '/tmp/guix-build-nim-1.6.6.drv-0/nim-1.6.6/config/config.nims' [Conf]
>> ......................................................................................................................
>> CC: stdlib_digitsutils.nim
>> Error: invocation of external compiler program failed. No such file or 
>> directory
>> Additional info: Could not find command: '/bin/sh'. OS error: No such file 
>> or directory 2
>> error: in phase 'build': uncaught exception:
>> %exception #<&invoke-error program: "./bin/nim" arguments: ("c" "koch") 
>> exit-status: 1 term-signal: #f stop-signal: #f> 
>> phase `build' failed after 96.6 seconds
>> command "./bin/nim" "c" "koch" failed with status 1
>> #+END_SRC
>> 
>> My current attempt at packaging this looks like this:
>> 
>> #+BEGIN_SRC scheme
>> (define-module (gnu packages nim)
>>   #:use-module (guix build-system gnu)
>>   #:use-module (guix gexp)
>>   #:use-module (guix download)
>>   #:use-module ((guix licenses) #:prefix license:)
>>   #:use-module (guix packages)
>>   #:use-module (gnu packages pcre)
>>   #:use-module (gnu packages tls)
>>   #:use-module (gnu packages cmake))
>> 
>> (define-public nim
>>   (package
>>     (name "nim")
>>     (version "1.6.6")
>>     (source
>>      (origin
>>        (method url-fetch)
>>        (uri (string-append "https://nim-lang.org/download/";
>>                            name "-" version ".tar.xz"))
>>        (sha256
>>         (base32 "0lm4450ig8k4l3rzxv6kcqji5l1lzicsw76ckwxm0q9qdz713cb7"))))
>>     (build-system gnu-build-system)
>>     (native-inputs (list pcre openssl cmake))
>>     (arguments
>>      `(#:tests? #f ; No tests.
>>        #:phases
>>        (modify-phases %standard-phases
>>          (delete 'configure) ; no configure script
>>          (add-after 'unpack 'patch-installer
>>            (lambda* (#:key outputs #:allow-other-keys)
>>              (let ((out (assoc-ref outputs "out")))
>>                (substitute* "install.sh"
>>                  (("/usr/") (string-append out "/usr/"))
>>                  (("/etc/") (string-append out "/etc/"))
>>                  (("/opt/") (string-append out "/opt/")))
>>                #t)))
>>          (add-after 'patch-source-shebangs 'patch-more-shebangs
>>            (lambda _
>>              (let ((sh (which "sh")))
>>                (substitute* '("tests/stdlib/tosprocterminate.nim"
>>                               "tests/stdlib/tstrscans.nim"
>>                               "lib/pure/osproc.nim")
>>                  (("/bin/sh") sh))
>>                (substitute* (find-files "c_code" "stdlib_osproc.c")
>
> try changing this to "stdlib_osproc.nim.c"
>
>>                  (("\"/bin/sh\", 7") (format #f "~s, ~s" sh (string-length 
>> sh)))))
>>              #t))
>>          (replace 'build
>>            (lambda _
>>              (setenv "XDG_CACHE_HOME" "./cache-home")
>>              (mkdir-p "./cache-home")
>>              (invoke "sh" "build.sh")
>>              (invoke "./bin/nim" "c" "koch")
>>              (invoke "koch" "boot" "-d:release")
>>              (invoke "koch" "tools")
>>              #t))
>>          (replace 'install
>>            (lambda* (#:key outputs #:allow-other-keys)
>>              (let ((out (assoc-ref outputs "out")))
>>                (mkdir-p (string-append out "/usr/bin"))
>>                (invoke "./install.sh" (string-append out "/usr/bin"))
>>                #t))))))
>>     (home-page "https://nim-lang.org";)
>>     (synopsis "Statically-typed, imperative programming language")
>>     (description "Nim (formerly known as Nimrod) is a statically-typed,
>> imperative programming language that tries to give the programmer ultimate 
>> power
>> without compromises on runtime efficiency.  This means it focuses on 
>> compile-time
>> mechanisms in all their various forms.")
>>     (license license:expat)))
>> #+END_SRC
>> 
>> I have tried:
>> 
>> 1. Symlinking (without any success) /bin/sh to (which "bash")
>> 2. Exporting $SHELL to (which "bash")
>> 3. Attempted (without much luck) to ~alias cc=gcc~ to see if it's not the 
>> shell that's missing, it's the command "cc", and adding cmake as a separate 
>> input
>> 4. Grokking the Nim source code that I don't perfectly understand to see how 
>> it could somehow decide to call something that isn't on path aside from a 
>> string that's "/bin/sh".
>>    
>> If someone appreciates packaging this better than can share some wisdom, it 
>> would be appreciated.
>> 
>
>> -- 
>> 
>> Trev : 0FB7 D06B 4A2A F07E AD5B  1169 183B 6306 8AA1 D206
>
>
>
>
> -- 
> Efraim Flashner   <efraim@flashner.co.il>   אפרים פלשנר
> GPG key = A28B F40C 3E55 1372 662D  14F7 41AA E7DC CA3D 8351
> Confidentiality cannot be guaranteed on emails sent or received unencrypted

-- 

Trev : 0FB7 D06B 4A2A F07E AD5B  1169 183B 6306 8AA1 D206

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