From mboxrd@z Thu Jan 1 00:00:00 1970 From: ng0@n0.is Subject: bug#30265: Fish shell has wrong path variables Date: Sat, 27 Jan 2018 10:36:42 +0000 Message-ID: <87shar8u6d.fsf@abyayala.i-did-not-set--mail-host-address--so-tickle-me> References: <87inbnpsx9.fsf@gmail.com> Mime-Version: 1.0 Content-Type: text/plain Return-path: Received: from eggs.gnu.org ([2001:4830:134:3::10]:50831) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1efNr9-0002Tr-33 for bug-guix@gnu.org; Sat, 27 Jan 2018 05:37:08 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1efNr4-0007FJ-51 for bug-guix@gnu.org; Sat, 27 Jan 2018 05:37:07 -0500 Received: from debbugs.gnu.org ([208.118.235.43]:36505) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_128_CBC_SHA1:16) (Exim 4.71) (envelope-from ) id 1efNr4-0007FF-10 for bug-guix@gnu.org; Sat, 27 Jan 2018 05:37:02 -0500 Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1efNr3-0002FM-R8 for bug-guix@gnu.org; Sat, 27 Jan 2018 05:37:01 -0500 Sender: "Debbugs-submit" Resent-Message-ID: In-Reply-To: <87inbnpsx9.fsf@gmail.com> (Meiyo Peng's message of "Sat, 27 Jan 2018 17:11:46 +0800") List-Id: Bug reports for GNU Guix List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: bug-guix-bounces+gcggb-bug-guix=m.gmane.org@gnu.org Sender: "bug-Guix" To: 30265@debbugs.gnu.org Hi Meiyo, thanks for your report. Indeed, Fish has some problems in Guix. On Sat, 27 Jan 2018, Meiyo Peng wrote: > Hi, > > I am using GuixSD 0.14. After upgrading fish shell to latest version(v2.7.1) and > running `guix gc`, fish shell does not work well. Can you explain a bit more about your setup? I assume you use fish as you user shell and not just as a shell you switch into from a Bash enabled user, correct? > #+BEGIN_EXAMPLE > meiyo@guix ~$ fish > fish: > echo $_ " "; __fish_pwd > ^ > in command substitution > called on standard input > > fish: > __fish_pwd > ^ > in command substitution > called on standard input > > in command substitution > called on standard input > > fish: > echo $_ " "; __fish_pwd > ^ > in command substitution > called on standard input > #+END_EXAMPLE > > > __fish_pwd is a fish function. It's defined in > `share/fish/functions/__fish_pwd.fish`. The error message shows that fish > cannot load __fish_pwd's function definition from disk. After doing some > research, I found out that the error was caused by wrong environment variables. > > Fish shell is installed in: > > #+BEGIN_EXAMPLE > /gnu/store/ajbbi9cgj9j0my7v5habp0lcysaf2a51-fish-2.7.1/ > #+END_EXAMPLE > > > But the environment variable $fish_function_path does not exist. And these > environment variables point to non-existent paths: > > #+BEGIN_EXAMPLE > __fish_bin_dir /gnu/store/4jkxcz8kpy621ycmqn3rvs0fv6c98h6p-fish-2.7.1/bin > __fish_datadir /gnu/store/4jkxcz8kpy621ycmqn3rvs0fv6c98h6p-fish-2.7.1/share/fish > #+END_EXAMPLE > > > Setting $fish_function_path to the correct path reduces the error message. > > #+BEGIN_EXAMPLE > set fish_function_path /gnu/store/ajbbi9cgj9j0my7v5habp0lcysaf2a51-fish-2.7.1/share/fish/functions > #+END_EXAMPLE > > > `share/fish/config.fish` states $__fish_datadir is set by fish.cpp, > and $fish_function_path is derived from $__fish_datadir. > > #+BEGIN_SRC fish > # __fish_datadir, __fish_sysconfdir, __fish_help_dir, __fish_bin_dir > # are expected to have been set up by read_init from fish.cpp > > > # Set up function and completion paths. Make sure that the fish > # default functions/completions are included in the respective path. > > if not set -q fish_function_path > set fish_function_path $configdir/fish/functions $__fish_sysconfdir/functions $__extra_functionsdir $__fish_datadir/functions > end > > if not contains -- $__fish_datadir/functions $fish_function_path > set fish_function_path $fish_function_path $__fish_datadir/functions > end > #+END_SRC > > In conclusion, I think some path related variables are not set correctly when > fish is compiled from source code and that caused the bug I met. But since I'm > not good at C++ programming, I will not dive deeper. > > I hope that the information provided above is helpful. > > > Meiyo Peng It's more or less known, I assume this is related to bug#27206 https://debbugs.gnu.org/cgi/bugreport.cgi?bug=27206 Which to my knowledge and sources I've read doesn't require C knowledge but more knowledge of how Fish interacts on system/vendor level and some testing with the resources I've provided in the other thread/bug. -- ng0 :: https://ea.n0.is A88C8ADD129828D7EAC02E52E22F9BBFEE348588 :: https://ea.n0.is/keys/