GNU bug report logs - #34531
Guix profile fails on Overdrive 1000

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From: Danny Milosavljevic <dannym <at> scratchpost.org>
To: Andreas Enge <andreas <at> enge.fr>
Cc: Ricardo Wurmus <rekado <at> elephly.net>, 34531 <at> debbugs.gnu.org
Subject: bug#34531: Guix profile fails on Overdrive 1000
Date: Tue, 19 Feb 2019 16:40:42 +0100

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Hi Andreas,

On Tue, 19 Feb 2019 16:35:53 +0100
Andreas Enge <andreas <at> enge.fr> wrote:

> I tried to simply drop python-wrapper from inputs. Actually it is not
> referenced by the final output, so it should be in native-inputs. And
> here is what happens:
> 
> -- Could NOT find PythonInterp (missing: PYTHON_EXECUTABLE)
> CMake Error at tests/CMakeLists.txt:4 (MESSAGE):
>   Could not find a python interpeter, which is needed to build the tests.
>   Make sure python is available, or pass -DBUILD_CLAR=OFF to skip building
>   the tests

diff --git a/gnu/packages/version-control.scm b/gnu/packages/version-control.scm
index b8e967bf6..7452f17b8 100644
--- a/gnu/packages/version-control.scm
+++ b/gnu/packages/version-control.scm
@@ -545,7 +545,8 @@ everything from small to very large projects with speed and efficiency.")
     (build-system cmake-build-system)
     (outputs '("out" "debug"))
     (arguments
-     `(#:configure-flags '("-DUSE_SHA1DC=ON") ; SHA-1 collision detection
+     `(#:configure-flags '("-DUSE_SHA1DC=ON" ; SHA-1 collision detection
+                           "-DBUILD_CLAR=OFF")
        #:phases
        (modify-phases %standard-phases
          (add-after 'unpack 'fix-hardcoded-paths
@@ -558,11 +559,13 @@ everything from small to very large projects with speed and efficiency.")
              #t))
          ;; Run checks more verbosely.
          (replace 'check
-           (lambda _ (invoke "./libgit2_clar" "-v" "-Q"))))))
+           (const #t)
+           ))))
     (inputs
      `(("libssh2" ,libssh2)
        ("http-parser" ,http-parser)
-       ("python" ,python-wrapper)))
+;       ("python" ,python-wrapper)
+))
     (native-inputs
      `(("pkg-config" ,pkg-config)))
     (propagated-inputs

> So we could create a separate package for internal guix use without running
> the tests, which would save us from compiling and especially testing python.

Please, let's just replace the test generator in this case.  It's ridiculous
to complicate Guix that much for a 250 line test generator, most of which is
templates.

If necessary, I can do it, although a person who knows Perl or Guile better
can probably do it much faster.

> Although this is not our usual style - but on the other hand, "guix pull"
> is more or less the first command that we recommend to our users, and
> it would be nice if it ran fast without requiring (many) additional packages.
> 
> Ironically, libgit2 advertises itself as needing "Zero Dependencies" on its
> web site...
> 
> What do you think?

Just replace the one script and do run the tests, without depending on Python.

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