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https://github.com/fish-shell/fish-shell
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f13979bfbb
This was already apparently supposed to work, but didn't because we just overrode errno again. This now means that, if a correctly named candidate exists, we don't start the command-not-found handler. See #8804
81 lines
3.4 KiB
Fish
81 lines
3.4 KiB
Fish
### Command-not-found handlers
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# This can be overridden by defining a new fish_command_not_found function
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# Read the OS/Distro from /etc/os-release.
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# This has a "ID=" line that defines the exact distribution,
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# and an "ID_LIKE=" line that defines what it is derived from or otherwise like.
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# For our purposes, we use both.
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set -l os
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if test -r /etc/os-release
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set os (string match -r '^ID(?:_LIKE)?\s*=.*' < /etc/os-release | \
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string replace -r '^ID(?:_LIKE)?\s*=(.*)' '$1' | string trim -c '\'"' | string split " ")
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end
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function __fish_default_command_not_found_handler
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printf (_ "fish: Unknown command: %s\n") (string escape -- $argv[1]) >&2
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end
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# If an old handler already exists, defer to that.
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if functions -q __fish_command_not_found_handler
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function fish_command_not_found
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# The fish_command_not_found event was removed in fish 3.2.0,
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# and future versions of fish will just call a function called "fish_command_not_found".
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# You have defined a custom handler, we suggest renaming it to "fish_command_not_found".
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__fish_command_not_found_handler $argv
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end
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# First check if we are on OpenSUSE since SUSE's handler has no options
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# but the same name and path as Ubuntu's.
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else if contains -- suse $os || contains -- sles $os && type -q command-not-found
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function fish_command_not_found
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command-not-found $argv[1]
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end
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# Check for Fedora's handler
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else if test -f /usr/libexec/pk-command-not-found
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function fish_command_not_found
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/usr/libexec/pk-command-not-found $argv
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end
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# Check in /usr/lib, where Ubuntu places this command
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else if test -f /usr/lib/command-not-found
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function fish_command_not_found
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/usr/lib/command-not-found -- $argv[1]
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end
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# Check for NixOS handler
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else if test -f /run/current-system/sw/bin/command-not-found
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function fish_command_not_found
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/run/current-system/sw/bin/command-not-found $argv
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end
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# Ubuntu Feisty places this command in the regular path instead
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else if type -q command-not-found
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function fish_command_not_found
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command-not-found -- $argv[1]
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end
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# pkgfile is an optional, but official, package on Arch Linux
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# it ships with example handlers for bash and zsh, so we'll follow that format
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else if type -q pkgfile
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function fish_command_not_found
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set -l __packages (pkgfile --binaries --verbose -- $argv[1] 2>/dev/null)
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if test $status -eq 0
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printf "%s may be found in the following packages:\n" "$argv[1]"
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printf " %s\n" $__packages
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else
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__fish_default_command_not_found_handler $argv[1]
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end
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end
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# pacman is too slow, see #7841.
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# else if type -q pacman
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# function fish_command_not_found
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# set -l paths $argv[1]
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# # If we've not been given an absolute path, try $PATH as the starting point,
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# # otherwise pacman will try *every path*, and e.g. bash-completion
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# # isn't helpful.
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# string match -q '/*' -- $argv[1]; or set paths $PATH/$argv[1]
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# # Pacman only prints the path, so we still need to print the error.
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# __fish_default_command_not_found_handler $argv[1]
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# pacman -F $paths
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# end
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else
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# Use standard fish command not found handler otherwise
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function fish_command_not_found --on-event fish_command_not_found
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__fish_default_command_not_found_handler $argv
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end
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end
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