bug#25467: Acknowledgement (Fish: some script is broken)

[Ricardo Wurmus <rekado@elephly.net>]

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ng0 <contact.ng0@cryptolab.net> writes:

> FYI:
> The script which fails is the one which generates completions
> from man pages. As our location of manpages differs, we need some
> approach to patch this.

I don’t think this is true.  Fish seems to fail to find “python”.  The
error disappears in an environment where “python-wrapper” is available.
A fix would involve replacing the call to “python” with the full path to
the “python” executable.

Here’s a patch:


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From dbc045eb338b7e70645ed19be71d8e761762c738 Mon Sep 17 00:00:00 2001
From: Ricardo Wurmus <rekado@elephly.net>
Date: Sat, 21 Jan 2017 22:57:12 +0100
Subject: [PATCH] gnu: fish: Embed full path to Python.

Fixes <https://bugs.gnu.org/25467>.

* gnu/packages/shells.scm (fish)[arguments]: Rename phase "patch-bc" to
"embed-store-paths"; embed full path to Python.
---
 gnu/packages/shells.scm | 10 +++++++---
 1 file changed, 7 insertions(+), 3 deletions(-)

diff --git a/gnu/packages/shells.scm b/gnu/packages/shells.scm
index 5237e8120..16c76ef66 100644
--- a/gnu/packages/shells.scm
+++ b/gnu/packages/shells.scm
@@ -5,6 +5,7 @@
 ;;; Copyright © 2015 Jeff Mickey <j@codemac.net>
 ;;; Copyright © 2016 Tobias Geerinckx-Rice <me@tobias.gr>
 ;;; Copyright © 2016 Stefan Reichör <stefan@xsteve.at>
+;;; Copyright © 2017 Ricardo Wurmus <rekado@elephly.net>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -106,14 +107,17 @@ direct descendant of NetBSD's Almquist Shell (@command{ash}).")
        #:configure-flags '("--sysconfdir=/etc")
        #:phases
        (modify-phases %standard-phases
-         ;; Replace 'bc' by its absolute file name in the store.
-         (add-after 'unpack 'patch-bc
+         ;; Embed absolute paths to store items.
+         (add-after 'unpack 'embed-store-paths
            (lambda* (#:key inputs outputs #:allow-other-keys)
              (substitute* '("share/functions/math.fish"
                             "share/functions/seq.fish")
                (("\\| bc")
                 (string-append "| " (assoc-ref %build-inputs "bc")
-                               "/bin/bc"))))))))
+                               "/bin/bc")))
+             (substitute* "share/functions/fish_update_completions.fish"
+               (("python") (which "python")))
+             #t)))))
     (synopsis "The friendly interactive shell")
     (description
      "Fish (friendly interactive shell) is a shell focused on interactive use,
-- 
2.11.0


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-- 
Ricardo

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