我最近在MacOS Mojave 3.0.1上通过Homebrew 2.0.1升级到了鱼10.14.2。自升级以来，每次启动鱼时都会出现以下错误消息：
contains: Unknown option '-gx'
/usr/local/Cellar/fish/3.0.1/share/fish/config.fish (line 426):
if not contains $entry $result
^
in function '__fish_macos_set_env'
called on line 228 of file /usr/local/Cellar/fish/3.0.1/share/fish/config.fish
with parameter list 'PATH /etc/paths /etc/paths.d'
from sourcing file /usr/local/Cellar/fish/3.0.1/share/fish/config.fish
called during startup
contains - test if a word is present in a list
Synopsis
contains [OPTIONS] KEY [VALUES...]
contains: Type 'help contains' for related documentation
contains: Unknown option '-e'
/usr/local/Cellar/fish/3.0.1/share/fish/config.fish (line 426):
if not contains $entry $result
^
in function '__fish_macos_set_env'
called on line 228 of file /usr/local/Cellar/fish/3.0.1/share/fish/config.fish
with parameter list 'PATH /etc/paths /etc/paths.d'
from sourcing file /usr/local/Cellar/fish/3.0.1/share/fish/config.fish
called during startup
contains - test if a word is present in a list
Synopsis
contains [OPTIONS] KEY [VALUES...]
contains: Type 'help contains' for related documentation
我的第一个反应是查看有问题的文件，即/usr/local/Cellar/fish/3.0.1/share/fish/config.fish，但是此文件只有306行，因此似乎不包含臭名昭著的426行。我在下面复制此文件，以防万一：
# Main file for fish command completions. This file contains various
# common helper functions for the command completions. All actual
# completions are located in the completions subdirectory.
#
# Set default field separators
#
set -g IFS \n\ \t
set -qg __fish_added_user_paths
or set -g __fish_added_user_paths
#
# Create the default command_not_found handler
#
function __fish_default_command_not_found_handler
printf "fish: Unknown command %s\n" (string escape -- $argv[1]) >&2
end
if status --is-interactive
# The user has seemingly explicitly launched an old fish with too-new scripts installed.
if not contains -- "string" (builtin -n)
set -g __is_launched_without_string 1
# XXX nostring - fix old fish binaries with no `string' builtin.
# When executed on fish 2.2.0, the `else' block after this would
# force on 24-bit mode due to changes to in test behavior.
# These "XXX nostring" hacks were added for 2.3.1
set_color --bold
echo "You appear to be trying to launch an old fish binary with newer scripts "
echo "installed into" (set_color --underline)"$__fish_data_dir"
set_color normal
echo -e "\nThis is an unsupported configuration.\n"
set_color yellow
echo "You may need to uninstall and reinstall fish!"
set_color normal
# Remove this code when we've made it safer to upgrade fish.
else
# Enable truecolor/24-bit support for select terminals
# Ignore Screen and emacs' ansi-term as they swallow the sequences, rendering the text white.
if not set -q STY
and not string match -q -- 'eterm*' $TERM
and begin
set -q KONSOLE_PROFILE_NAME # KDE's konsole
or string match -q -- "*:*" $ITERM_SESSION_ID # Supporting versions of iTerm2 will include a colon here
or string match -q -- "st-*" $TERM # suckless' st
or test -n "$VTE_VERSION" -a "$VTE_VERSION" -ge 3600 # Should be all gtk3-vte-based terms after version 3.6.0.0
or test "$COLORTERM" = truecolor -o "$COLORTERM" = 24bit # slang expects this
end
# Only set it if it isn't to allow override by setting to 0
set -q fish_term24bit
or set -g fish_term24bit 1
end
end
else
# Hook up the default as the principal command_not_found handler
# in case we are not interactive
function __fish_command_not_found_handler --on-event fish_command_not_found
__fish_default_command_not_found_handler $argv
end
end
#
# Set default search paths for completions and shellscript functions
# unless they already exist
#
set -g __fish_config_dir ~/.config/fish
if set -q XDG_CONFIG_HOME
set __fish_config_dir $XDG_CONFIG_HOME/fish
end
set -l userdatadir ~/.local/share
if set -q XDG_DATA_HOME
set userdatadir $XDG_DATA_HOME
end
# __fish_data_dir, __fish_sysconf_dir, __fish_help_dir, __fish_bin_dir
# are expected to have been set up by read_init from fish.cpp
# Grab extra directories (as specified by the build process, usually for
# third-party packages to ship completions &c.
set -l __extra_completionsdir
set -l __extra_functionsdir
set -l __extra_confdir
if test -f $__fish_data_dir/__fish_build_paths.fish
source $__fish_data_dir/__fish_build_paths.fish
end
# 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 $__fish_config_dir/functions $__fish_sysconf_dir/functions $__extra_functionsdir $__fish_data_dir/functions
end
if not contains -- $__fish_data_dir/functions $fish_function_path
set fish_function_path $fish_function_path $__fish_data_dir/functions
end
if not set -q fish_complete_path
set fish_complete_path $__fish_config_dir/completions $__fish_sysconf_dir/completions $__extra_completionsdir $__fish_data_dir/completions $userdatadir/fish/generated_completions
end
if not contains -- $__fish_data_dir/completions $fish_complete_path
set fish_complete_path $fish_complete_path $__fish_data_dir/completions
end
# This cannot be in an autoload-file because `:.fish` is an invalid filename on windows.
function :
# no-op function for compatibility with sh, bash, and others.
# Often used to insert a comment into a chain of commands without having
# it eat up the remainder of the line, handy in Makefiles.
end
#
# This is a Solaris-specific test to modify the PATH so that
# Posix-conformant tools are used by default. It is separate from the
# other PATH code because this directory needs to be prepended, not
# appended, since it contains POSIX-compliant replacements for various
# system utilities.
#
if test -d /usr/xpg4/bin
if not contains -- /usr/xpg4/bin $PATH
set PATH /usr/xpg4/bin $PATH
end
end
# Add a handler for when fish_user_path changes, so we can apply the same changes to PATH
function __fish_reconstruct_path -d "Update PATH when fish_user_paths changes" --on-variable fish_user_paths
set -l local_path $PATH
for x in $__fish_added_user_paths
set -l idx (contains --index -- $x $local_path)
and set -e local_path[$idx]
end
set -g __fish_added_user_paths
if set -q fish_user_paths
for x in $fish_user_paths[-1..1]
if set -l idx (contains --index -- $x $local_path)
set -e local_path[$idx]
else
set -g __fish_added_user_paths $__fish_added_user_paths $x
end
set local_path $x $local_path
end
end
set -xg PATH $local_path
end
#
# Launch debugger on SIGTRAP
#
function fish_sigtrap_handler --on-signal TRAP --no-scope-shadowing --description "Signal handler for the TRAP signal. Launches a debug prompt."
breakpoint
end
#
# Whenever a prompt is displayed, make sure that interactive
# mode-specific initializations have been performed.
# This handler removes itself after it is first called.
#
function __fish_on_interactive --on-event fish_prompt
__fish_config_interactive
functions -e __fish_on_interactive
end
# Set the locale if it isn't explicitly set. Allowing the lack of locale env vars to imply the
# C/POSIX locale causes too many problems. Do this before reading the snippets because they might be
# in UTF-8 (with non-ASCII characters).
__fish_set_locale
# "." command for compatibility with old fish versions.
function . --description 'Evaluate contents of file (deprecated, see "source")' --no-scope-shadowing
if test (count $argv) -eq 0
# Uses tty directly, as isatty depends on "."
and tty 0>&0 >/dev/null
echo "source: '.' command is deprecated, and doesn't work with STDIN anymore. Did you mean 'source' or './'?" >&2
return 1
else
source $argv
end
end
# Upgrade pre-existing abbreviations from the old "key=value" to the new "key value" syntax.
# This needs to be in share/config.fish because __fish_config_interactive is called after sourcing
# config.fish, which might contain abbr calls.
if not set -q __fish_init_2_3_0
if set -q fish_user_abbreviations
set -l fab
for abbr in $fish_user_abbreviations
set fab $fab (string replace -r '^([^ =]+)=(.*)$' '$1 $2' -- $abbr)
end
set fish_user_abbreviations $fab
end
set -U __fish_init_2_3_0
end
# macOS-ism: Emulate calling path_helper.
if command -sq /usr/libexec/path_helper
# Adapt construct_path from the macOS /usr/libexec/path_helper
# executable for fish; see
# https://opensource.apple.com/source/shell_cmds/shell_cmds-203/path_helper/path_helper.c.auto.html .
function __fish_macos_set_env -d "set an environment variable like path_helper does (macOS only)"
set -l result
for path_file in $argv[2] $argv[3]/*
if test -f $path_file
while read -l entry
if not contains $entry $result
set result $result $entry
end
end <$path_file
end
end
for entry in $$argv[1]
if not contains $entry $result
set result $result $entry
end
end
set -xg $argv[1] $result
end
__fish_macos_set_env 'PATH' '/etc/paths' '/etc/paths.d'
if [ -n "$MANPATH" ]
__fish_macos_set_env 'MANPATH' '/etc/manpaths' '/etc/manpaths.d'
end
functions -e __fish_macos_set_env
end
#
# Some things should only be done for login terminals
# This used to be in etc/config.fish - keep it here to keep the semantics
#
if status --is-login
#
# Put linux consoles in unicode mode.
#
if test "$TERM" = linux
if string match -qir '\.UTF' -- $LANG
if command -sq unicode_start
unicode_start
end
end
end
end
# Invoke this here to apply the current value of fish_user_path after
# PATH is possibly set above.
__fish_reconstruct_path
# Allow %n job expansion to be used with fg/bg/wait
# `jobs` is the only one that natively supports job expansion
function __fish_expand_pid_args
for arg in $argv
if string match -qr '^%\d+$' -- $arg
# set newargv $newargv (jobs -p $arg)
jobs -p $arg
if not test $status -eq 0
return 1
end
else
printf "%s\n" $arg
end
end
end
function bg
builtin bg (__fish_expand_pid_args $argv)
end
function fg
builtin fg (__fish_expand_pid_args $argv)
end
function kill
command kill (__fish_expand_pid_args $argv)
end
function wait
builtin wait (__fish_expand_pid_args $argv)
end
function disown
builtin disown (__fish_expand_pid_args $argv)
end
# As last part of initialization, source the conf directories.
# Implement precedence (User > Admin > Extra (e.g. vendors) > Fish) by basically doing "basename".
set -l sourcelist
for file in $__fish_config_dir/conf.d/*.fish $__fish_sysconf_dir/conf.d/*.fish $__extra_confdir/*.fish
set -l basename (string replace -r '^.*/' '' -- $file)
contains -- $basename $sourcelist
and continue
set sourcelist $sourcelist $basename
# Also skip non-files or unreadable files.
# This allows one to use e.g. symlinks to /dev/null to "mask" something (like in systemd).
[ -f $file -a -r $file ]
and source $file
end
这是怎么回事？我该如何解决？
答案 0 :(得分：3)
这里发生的是$ PATH，$ fish_user_paths或/ etc / paths中的一行的组件看起来像一个选项。
很可能这是错误的，应该将其删除。
例如尝试printf '%s\n' $fish_user_paths。如果那告诉您其中一个条目是“ -gx”，则说明您设置错误，需要使用set -e fish_user_paths[number-of-that-entry]进行更正。
由于这些都是set的常用选项，因此您可能曾经做过类似set fish_user_paths /something -gx的操作，它添加了一个“ -gx”组件（set仅在变量前读取选项名称）。
这是在https://github.com/fish-shell/fish-shell/issues/5662上游报告的，将来的fish版本不会产生错误，但是存在问题的组件很可能是错误，因此您仍要删除它。