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# ____ ____
# / __/___ / __/
# / /_/_ / / /_
# / __/ / /_/ __/
# /_/ /___/_/ key-bindings.fish
#
# - $FZF_TMUX_OPTS
# - $FZF_CTRL_T_COMMAND
# - $FZF_CTRL_T_OPTS
# - $FZF_CTRL_R_COMMAND
# - $FZF_CTRL_R_OPTS
# - $FZF_ALT_C_COMMAND
# - $FZF_ALT_C_OPTS
# Key bindings
# ------------
# The oldest supported fish version is 3.1b1. To maintain compatibility, the
# command substitution syntax $(cmd) should never be used, even behind a version
# check, otherwise the source command will fail on fish versions older than 3.4.0.
function fzf_key_bindings
# Check fish version
set -l fish_ver (string match -r '^(\d+).(\d+)' $version 2> /dev/null; or echo 0\n0\n0)
if test \( "$fish_ver[2]" -lt 3 \) -o \( "$fish_ver[2]" -eq 3 -a "$fish_ver[3]" -lt 1 \)
echo "This script requires fish version 3.1b1 or newer." >&2
return 1
else if not type -q fzf
echo "fzf was not found in path." >&2
return 1
end
function __fzf_defaults
# $argv[1]: Prepend to FZF_DEFAULT_OPTS_FILE and FZF_DEFAULT_OPTS
# $argv[2..]: Append to FZF_DEFAULT_OPTS_FILE and FZF_DEFAULT_OPTS
test -n "$FZF_TMUX_HEIGHT"; or set -l FZF_TMUX_HEIGHT 40%
string join ' ' -- \
"--height $FZF_TMUX_HEIGHT --min-height=20+ --bind=ctrl-z:ignore" $argv[1] \
(test -r "$FZF_DEFAULT_OPTS_FILE"; and string join -- ' ' <$FZF_DEFAULT_OPTS_FILE) \
$FZF_DEFAULT_OPTS $argv[2..-1]
end
function __fzfcmd
test -n "$FZF_TMUX_HEIGHT"; or set -l FZF_TMUX_HEIGHT 40%
if test -n "$FZF_TMUX_OPTS"
echo "fzf-tmux $FZF_TMUX_OPTS -- "
else if test "$FZF_TMUX" = "1"
echo "fzf-tmux -d$FZF_TMUX_HEIGHT -- "
else
echo "fzf"
end
end
function __fzf_parse_commandline -d 'Parse the current command line token and return split of existing filepath, fzf query, and optional -option= prefix'
set -l fzf_query ''
set -l prefix ''
set -l dir '.'
# Set variables containing the major and minor fish version numbers, using
# a method compatible with all supported fish versions.
set -l -- fish_major (string match -r -- '^\d+' $version)
set -l -- fish_minor (string match -r -- '^\d+\.(\d+)' $version)[2]
# fish v3.3.0 and newer: Don't use option prefix if " -- " is preceded.
set -l -- match_regex '(?<fzf_query>[\s\S]*?(?=\n?$)$)'
set -l -- prefix_regex '^-[^\s=]+=|^-(?!-)\S'
if test "$fish_major" -eq 3 -a "$fish_minor" -lt 3
or string match -q -v -- '* -- *' (string sub -l (commandline -Cp) -- (commandline -p))
set -- match_regex "(?<prefix>$prefix_regex)?$match_regex"
end
# Set $prefix and expanded $fzf_query with preserved trailing newlines.
if test "$fish_major" -ge 4
# fish v4.0.0 and newer
string match -q -r -- $match_regex (commandline --current-token --tokens-expanded | string collect -N)
else if test "$fish_major" -eq 3 -a "$fish_minor" -ge 2
# fish v3.2.0 - v3.7.1 (last v3)
string match -q -r -- $match_regex (commandline --current-token --tokenize | string collect -N)
eval set -- fzf_query (string escape -n -- $fzf_query | string replace -r -a '^\\\(?=~)|\\\(?=\$\w)' '')
else
# fish older than v3.2.0 (v3.1b1 - v3.1.2)
set -l -- cl_token (commandline --current-token --tokenize | string collect -N)
set -- prefix (string match -r -- $prefix_regex $cl_token)
set -- fzf_query (string replace -- "$prefix" '' $cl_token | string collect -N)
eval set -- fzf_query (string escape -n -- $fzf_query | string replace -r -a '^\\\(?=~)|\\\(?=\$\w)|\\\n\\\n$' '')
end
if test -n "$fzf_query"
# Normalize path in $fzf_query, set $dir to the longest existing directory.
if test \( "$fish_major" -ge 4 \) -o \( "$fish_major" -eq 3 -a "$fish_minor" -ge 5 \)
# fish v3.5.0 and newer
set -- fzf_query (path normalize -- $fzf_query)
set -- dir $fzf_query
while not path is -d $dir
set -- dir (path dirname $dir)
end
else
# fish older than v3.5.0 (v3.1b1 - v3.4.1)
if test "$fish_major" -eq 3 -a "$fish_minor" -ge 2
# fish v3.2.0 - v3.4.1
string match -q -r -- '(?<fzf_query>^[\s\S]*?(?=\n?$)$)' \
(string replace -r -a -- '(?<=/)/|(?<!^)/+(?!\n)$' '' $fzf_query | string collect -N)
else
# fish v3.1b1 - v3.1.2
set -- fzf_query (string replace -r -a -- '(?<=/)/|(?<!^)/+(?!\n)$' '' $fzf_query | string collect -N)
eval set -- fzf_query (string escape -n -- $fzf_query | string replace -r '\\\n$' '')
end
set -- dir $fzf_query
while not test -d "$dir"
set -- dir (dirname -z -- "$dir" | string split0)
end
end
if not string match -q -- '.' $dir; or string match -q -r -- '^\./|^\.$' $fzf_query
# Strip $dir from $fzf_query - preserve trailing newlines.
if test "$fish_major" -ge 4
# fish v4.0.0 and newer
string match -q -r -- '^'(string escape --style=regex -- $dir)'/?(?<fzf_query>[\s\S]*)' $fzf_query
else if test "$fish_major" -eq 3 -a "$fish_minor" -ge 2
# fish v3.2.0 - v3.7.1 (last v3)
string match -q -r -- '^/?(?<fzf_query>[\s\S]*?(?=\n?$)$)' \
(string replace -- "$dir" '' $fzf_query | string collect -N)
else
# fish older than v3.2.0 (v3.1b1 - v3.1.2)
set -- fzf_query (string replace -- "$dir" '' $fzf_query | string collect -N)
eval set -- fzf_query (string escape -n -- $fzf_query | string replace -r -a '^/?|\\\n$' '')
end
end
end
string escape -n -- "$dir" "$fzf_query" "$prefix"
end
# Store current token in $dir as root for the 'find' command
function fzf-file-widget -d "List files and folders"
set -l commandline (__fzf_parse_commandline)
set -lx dir $commandline[1]
set -l fzf_query $commandline[2]
set -l prefix $commandline[3]
set -lx FZF_DEFAULT_OPTS (__fzf_defaults \
"--reverse --walker=file,dir,follow,hidden --scheme=path" \
"$FZF_CTRL_T_OPTS --multi --print0")
set -lx FZF_DEFAULT_COMMAND "$FZF_CTRL_T_COMMAND"
set -lx FZF_DEFAULT_OPTS_FILE
set -l result (eval (__fzfcmd) --walker-root=$dir --query=$fzf_query | string split0)
and commandline -rt -- (string join -- ' ' $prefix(string escape -- $result))' '
commandline -f repaint
end
function fzf-history-widget -d "Show command history"
set -l -- command_line (commandline)
set -l -- current_line (commandline -L)
set -l -- total_lines (count $command_line)
set -l -- fzf_query (string escape -- $command_line[$current_line])
set -lx FZF_DEFAULT_OPTS (__fzf_defaults '' \
'--nth=2..,.. --scheme=history --multi --wrap-sign="\t↳ "' \
'--bind=\'shift-delete:execute-silent(eval history delete --exact --case-sensitive -- (string escape -n -- {+} | string replace -r -a "^\d*\\\\\\t|(?<=\\\\\\n)\\\\\\t" ""))+reload(eval $FZF_DEFAULT_COMMAND)\'' \
"--bind=ctrl-r:toggle-sort,alt-r:toggle-raw --highlight-line $FZF_CTRL_R_OPTS" \
'--accept-nth=2.. --read0 --print0 --with-shell='(status fish-path)\\ -c)
set -lx FZF_DEFAULT_OPTS_FILE
set -lx FZF_DEFAULT_COMMAND
if type -q perl
set -a FZF_DEFAULT_OPTS '--tac'
set FZF_DEFAULT_COMMAND 'builtin history -z --reverse | command perl -0 -pe \'s/^/$.\t/g; s/\n/\n\t/gm\''
else
set FZF_DEFAULT_COMMAND \
'set -l h (builtin history -z --reverse | string split0);' \
'for i in (seq (count $h) -1 1);' \
'string join0 -- $i\t(string replace -a -- \n \n\t $h[$i] | string collect);' \
'end'
end
# Merge history from other sessions before searching
test -z "$fish_private_mode"; and builtin history merge
if set -l result (eval $FZF_DEFAULT_COMMAND \| (__fzfcmd) --query=$fzf_query | string split0)
if test "$total_lines" -eq 1
commandline -- (string replace -a -- \n\t \n $result)
else
set -l a (math $current_line - 1)
set -l b (math $current_line + 1)
commandline -- $command_line[1..$a] (string replace -a -- \n\t \n $result)
commandline -a -- '' $command_line[$b..-1]
end
end
commandline -f repaint
end
function fzf-cd-widget -d "Change directory"
set -l commandline (__fzf_parse_commandline)
set -lx dir $commandline[1]
set -l fzf_query $commandline[2]
set -l prefix $commandline[3]
set -lx FZF_DEFAULT_OPTS (__fzf_defaults \
"--reverse --walker=dir,follow,hidden --scheme=path" \
"$FZF_ALT_C_OPTS --no-multi --print0")
set -lx FZF_DEFAULT_OPTS_FILE
set -lx FZF_DEFAULT_COMMAND "$FZF_ALT_C_COMMAND"
if set -l result (eval (__fzfcmd) --query=$fzf_query --walker-root=$dir | string split0)
cd -- $result
commandline -rt -- $prefix
end
commandline -f repaint
end
if not set -q FZF_CTRL_R_COMMAND; or test -n "$FZF_CTRL_R_COMMAND"
if test -n "$FZF_CTRL_R_COMMAND"
echo "warning: FZF_CTRL_R_COMMAND is set to a custom command, but custom commands are not yet supported for CTRL-R" >&2
end
bind \cr fzf-history-widget
bind -M insert \cr fzf-history-widget
end
if not set -q FZF_CTRL_T_COMMAND; or test -n "$FZF_CTRL_T_COMMAND"
bind \ct fzf-file-widget
bind -M insert \ct fzf-file-widget
end
if not set -q FZF_ALT_C_COMMAND; or test -n "$FZF_ALT_C_COMMAND"
bind \ec fzf-cd-widget
bind -M insert \ec fzf-cd-widget
end
end
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