From mboxrd@z Thu Jan  1 00:00:00 1970
From: Ludovic =?UTF-8?Q?Court=C3=A8s?= <ludo@gnu.org>
Subject: bug#37071: guix import pypi httpie fails
Date: Wed, 28 Aug 2019 22:48:48 +0200
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References: <47016DD3-0499-428A-9DE0-DACF8AE4D78B@vllmrt.net>
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 Vollmert's message of "Sun, 18 Aug 2019 12:40:43 +0200")
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To: Robert Vollmert <rob@vllmrt.net>
Cc: 37071@debbugs.gnu.org, Maxim Cournoyer <maxim.cournoyer@gmail.com>

Hi,

Robert Vollmert <rob@vllmrt.net> skribis:

> $ guix import pypi httpie
>  =E2=80=A60.2.tar.gz  83KiB                   291KiB/s 00:00 [###########=
#######] 100.0%
>  =E2=80=A6.py3-none-any.whl  58KiB            201KiB/s 00:00 [###########=
#######] 100.0%
> guix import: warning: Failed to extract file: httpie-1.0.2.dist-info/META=
DATA from wheel.
> Backtrace:
>           15 (primitive-load "/home/rob/.config/guix/current/bin/guix")
> In guix/ui.scm:
>   1692:12 14 (run-guix-command _ . _)
> In guix/scripts/import.scm:
>    115:11 13 (guix-import . _)
> In guix/scripts/import/pypi.scm:
>    102:23 12 (guix-import-pypi . _)
> In guix/memoization.scm:
>      98:0 11 (_ #<hash-table 11e5b20 0/31> ("httpie") _)
> In unknown file:
>           10 (_ #<procedure 11f9580 at guix/memoization.scm:179:32 =E2=80=
=A6> =E2=80=A6)
> In ice-9/boot-9.scm:
>     829:9  9 (catch _ _ #<procedure 7f2711b7fd48 at guix/import/pyp=E2=80=
=A6> =E2=80=A6)
> In guix/utils.scm:
>     635:8  8 (call-with-temporary-output-file _)
> In guix/import/pypi.scm:
>    384:25  7 (_ "/tmp/guix-file.A9OwRK" _)
> In guix/utils.scm:
>     635:8  6 (call-with-temporary-output-file #<procedure 1091c20 at=E2=
=80=A6>)
> In guix/import/utils.scm:
>    133:10  5 (_ "/tmp/guix-file.jFzPxe" _)
>     123:4  4 (url-fetch _ _)
> In guix/build/download.scm:
>     763:4  3 (url-fetch "/tmp/guix-file.A9OwRK" "/tmp/guix-file.jFz=E2=80=
=A6" =E2=80=A6)
> In srfi/srfi-1.scm:
>    679:15  2 (append-map _ _ . _)
>    592:17  1 (map1 (#f))
> In guix/build/download.scm:
>     728:8  0 (maybe-expand-mirrors _ _)
>
> guix/build/download.scm:728:8: In procedure maybe-expand-mirrors:
> In procedure struct_vtable: Wrong type argument in position 1 (expecting =
struct): #f

The key here is the message =E2=80=9CFailed to extract [=E2=80=A6] METADATA=
 from wheel=E2=80=9D.

When that happens, I think we miss too much information to do anything
sensible.  Maxim, do you confirm?

If you add =E2=80=98unzip=E2=80=99 to $PATH, the problem should vanish.

We should probably process wheels & co. in derivations to avoid relying
on tools that may or may not be in $PATH.

Thoughts?

Ludo=E2=80=99.