nixpkgs/pkgs/shells/fish/default.nix
Judson 2c9c395a22
fish: use internal wcwidth
Fish 3.0 has an updated an more robust handling of unicode glyphs. Per
the original author of the INTERNAL_WCWIDTH flag, it was something of
misfeature, and they regret that NixOS came to rely on it.

Removes the flag from the Nix expression.

Flag was added originally to Nixpkgs in 68076b7d49

It is being removed entirely from upstream fish:
https://github.com/fish-shell/fish-shell/pull/5777.
2019-07-18 15:00:29 -07:00

206 lines
8.3 KiB
Nix

{ stdenv, fetchurl, coreutils, utillinux,
which, gnused, gnugrep,
groff, man-db, getent, libiconv, pcre2,
gettext, ncurses, python3,
cmake
, writeText
, useOperatingSystemEtc ? true
}:
with stdenv.lib;
let
etcConfigAppendixText = ''
############### Nix hook for sourcing /etc/fish/config.fish ###############
# #
# Origin:
# This fish package was called with the attribute
# "useOperatingSystemEtc = true;".
#
# Purpose:
# Fish ordinarily sources /etc/fish/config.fish as
# $__fish_sysconfdir/config.fish,
# and $__fish_sysconfdir is defined at compile-time, baked into the C++
# component of fish. By default, it is set to "/etc/fish". When building
# through Nix, $__fish_sysconfdir gets set to $out/etc/fish. Here we may
# have included a custom $out/etc/config.fish in the fish package,
# as specified, but according to the value of useOperatingSystemEtc, we
# may want to further source the real "/etc/fish/config.fish" file.
#
# When this option is enabled, this segment should appear the very end of
# "$out/etc/config.fish". This is to emulate the behavior of fish itself
# with respect to /etc/fish/config.fish and ~/.config/fish/config.fish:
# source both, but source the more global configuration files earlier
# than the more local ones, so that more local configurations inherit
# from but override the more global locations.
if test -f /etc/fish/config.fish
source /etc/fish/config.fish
end
# #
############### Nix hook for sourcing /etc/fish/config.fish ###############
'';
fishPreInitHooks = ''
# source nixos environment
# note that this is required:
# 1. For all shells, not just login shells (mosh needs this as do some other command-line utilities)
# 2. Before the shell is initialized, so that config snippets can find the commands they use on the PATH
builtin status --is-login
or test -z "$__fish_nixos_env_preinit_sourced" -a -z "$ETC_PROFILE_SOURCED" -a -z "$ETC_ZSHENV_SOURCED"
and test -f /etc/fish/nixos-env-preinit.fish
and source /etc/fish/nixos-env-preinit.fish
and set -gx __fish_nixos_env_preinit_sourced 1
test -n "$NIX_PROFILES"
and begin
# We ensure that __extra_* variables are read in $__fish_datadir/config.fish
# with a preference for user-configured data by making sure the package-specific
# data comes last. Files are loaded/sourced in encounter order, duplicate
# basenames get skipped, so we assure this by prepending Nix profile paths
# (ordered in reverse of the $NIX_PROFILE variable)
#
# Note that at this point in evaluation, there is nothing whatsoever on the
# fish_function_path. That means we don't have most fish builtins, e.g., `eval`.
# additional profiles are expected in order of precedence, which means the reverse of the
# NIX_PROFILES variable (same as config.environment.profiles)
set -l __nix_profile_paths (echo $NIX_PROFILES | ${coreutils}/bin/tr ' ' '\n')[-1..1]
set __extra_completionsdir \
$__nix_profile_paths"/etc/fish/completions" \
$__nix_profile_paths"/share/fish/vendor_completions.d" \
$__extra_completionsdir
set __extra_functionsdir \
$__nix_profile_paths"/etc/fish/functions" \
$__nix_profile_paths"/share/fish/vendor_functions.d" \
$__extra_functionsdir
set __extra_confdir \
$__nix_profile_paths"/etc/fish/conf.d" \
$__nix_profile_paths"/share/fish/vendor_conf.d" \
$__extra_confdir
end
'';
fish = stdenv.mkDerivation rec {
name = "fish-${version}";
version = "3.0.2";
etcConfigAppendix = builtins.toFile "etc-config.appendix.fish" etcConfigAppendixText;
src = fetchurl {
# There are differences between the release tarball and the tarball github packages from the tag
# Hence we cannot use fetchFromGithub
url = "https://github.com/fish-shell/fish-shell/releases/download/${version}/${name}.tar.gz";
sha256 = "03j3jl9jzlnhq4p86zj8wqsh5sx45j1d1fvfa80ks1cfdg68qwhl";
};
nativeBuildInputs = [ cmake ];
buildInputs = [ ncurses libiconv pcre2 ];
preConfigure = ''
patchShebangs ./build_tools/git_version_gen.sh
'';
# Required binaries during execution
# Python: Autocompletion generated from manpages and config editing
propagatedBuildInputs = [
coreutils gnugrep gnused
python3 groff gettext
] ++ optional (!stdenv.isDarwin) man-db;
postInstall = ''
sed -r "s|command grep|command ${gnugrep}/bin/grep|" \
-i "$out/share/fish/functions/grep.fish"
sed -i "s|which |${which}/bin/which |" \
"$out/share/fish/functions/type.fish"
sed -e "s|\|cut|\|${coreutils}/bin/cut|" \
-i "$out/share/fish/functions/fish_prompt.fish"
sed -e "s|gettext |${gettext}/bin/gettext |" \
-e "s|which |${which}/bin/which |" \
-i "$out/share/fish/functions/_.fish"
sed -e "s|uname|${coreutils}/bin/uname|" \
-i "$out/share/fish/functions/__fish_pwd.fish" \
"$out/share/fish/functions/prompt_pwd.fish"
sed -e "s|sed |${gnused}/bin/sed |" \
-i "$out/share/fish/functions/alias.fish" \
"$out/share/fish/functions/prompt_pwd.fish"
sed -i "s|nroff |${groff}/bin/nroff |" \
"$out/share/fish/functions/__fish_print_help.fish"
sed -i "s|/sbin /usr/sbin||" \
"$out/share/fish/functions/__fish_complete_subcommand_root.fish"
sed -e "s|clear;|${getBin ncurses}/bin/clear;|" \
-i "$out/share/fish/functions/fish_default_key_bindings.fish"
sed -e "s|python3|${getBin python3}/bin/python3|" \
-i $out/share/fish/functions/{__fish_config_interactive.fish,fish_config.fish,fish_update_completions.fish}
'' + optionalString stdenv.isLinux ''
sed -e "s| ul| ${utillinux}/bin/ul|" \
-i "$out/share/fish/functions/__fish_print_help.fish"
for cur in $out/share/fish/functions/*.fish; do
sed -e "s|/usr/bin/getent|${getent}/bin/getent|" \
-i "$cur"
done
'' + optionalString (!stdenv.isDarwin) ''
sed -i "s|Popen(\['manpath'|Popen(\['${man-db}/bin/manpath'|" \
"$out/share/fish/tools/create_manpage_completions.py"
sed -i "s|command manpath|command ${man-db}/bin/manpath|" \
"$out/share/fish/functions/man.fish"
'' + optionalString useOperatingSystemEtc ''
tee -a $out/etc/fish/config.fish < ${(writeText "config.fish.appendix" etcConfigAppendixText)}
'' + ''
tee -a $out/share/fish/__fish_build_paths.fish < ${(writeText "__fish_build_paths_suffix.fish" fishPreInitHooks)}
'';
enableParallelBuilding = true;
meta = with stdenv.lib; {
description = "Smart and user-friendly command line shell";
homepage = http://fishshell.com/;
license = licenses.gpl2;
platforms = platforms.unix;
maintainers = with maintainers; [ ocharles ];
};
passthru = {
shellPath = "/bin/fish";
};
};
tests = {
# Test the fish_config tool by checking the generated splash page.
# Since the webserver requires a port to run, it is not started.
fishConfig =
let fishScript = writeText "test.fish" ''
set -x __fish_bin_dir ${fish}/bin
echo $__fish_bin_dir
cp -r ${fish}/share/fish/tools/web_config/* .
chmod -R +w *
# we delete everything after the fileurl is assigned
sed -e '/fileurl =/q' -i webconfig.py
echo "print(fileurl)" >> webconfig.py
# and check whether the message appears on the page
cat (${python3}/bin/python ./webconfig.py \
| tail -n1 | sed -ne 's|.*\(/tmp/.*\)|\1|p' \
) | grep 'a href="http://localhost.*Start the Fish Web config'
# cannot test the http server because it needs a localhost port
'';
in ''
HOME=$(mktemp -d)
${fish}/bin/fish ${fishScript}
'';
};
# FIXME(Profpatsch) replace withTests stub
withTests = flip const;
in withTests tests fish