/
fz.sh
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/
fz.sh
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# Copyright 2017-2018 Henry Chang
#
# This Source Code Form is subject to the terms of the Mozilla Public
# License, v. 2.0. If a copy of the MPL was not distributed with this
# file, You can obtain one at http://mozilla.org/MPL/2.0/.
[[ -n "$FZ_CMD" ]] || FZ_CMD=z
[[ -n "$FZ_SUBDIR_CMD" ]] || FZ_SUBDIR_CMD=zz
[[ -n "$FZ_HISTORY_CD_CMD" ]] || FZ_HISTORY_CD_CMD=_z
[[ -n "$FZ_SUBDIR_HISTORY_CD_CMD" ]] || \
FZ_SUBDIR_HISTORY_CD_CMD="$FZ_HISTORY_CD_CMD -c"
[[ -n "$FZ_HISTORY_LIST_GENERATOR" ]] \
|| FZ_HISTORY_LIST_GENERATOR=__fz_generate_matched_history_list
[[ -n "$FZ_SUBDIR_HISTORY_LIST_GENERATOR" ]] \
|| FZ_SUBDIR_HISTORY_LIST_GENERATOR=__fz_generate_matched_subdir_history_list
[[ -n "$FZ_SUBDIR_TRAVERSAL" ]] || FZ_SUBDIR_TRAVERSAL=1
[[ -n "$FZ_CASE_INSENSITIVE" ]] || FZ_CASE_INSENSITIVE=1
[[ -n "$FZ_ABBREVIATE_HOME" ]] || FZ_ABBREVIATE_HOME=1
alias ${FZ_CMD}='_fz'
alias ${FZ_SUBDIR_CMD}='_fzz'
__fz_generate_matched_subdir_list() {
local dir seg starts_with_dir
if [[ "$1" == */ ]]; then
dir="$1"
find -L "$(builtin cd "$dir" 2>/dev/null && pwd)" -mindepth 1 -maxdepth 1 -type d \
2>/dev/null | while read -r line; do
base="${line##*/}"
if [[ "$base" == .* ]]; then
continue
fi
echo "$line"
done
else
dir=$(dirname -- "$1")
seg=$(basename -- "$1")
if [[ "$FZ_CASE_INSENSITIVE" == "1" ]]; then
seg=$(echo "$seg" | tr '[:upper:]' '[:lower:]')
fi
starts_with_dir=$( \
find -L "$(builtin cd "$dir" 2>/dev/null && pwd)" -mindepth 1 -maxdepth 1 \
-type d 2>/dev/null | while read -r line; do \
base="${line##*/}"
if [[ "$seg" != .* && "$base" == .* ]]; then
continue
fi
if [[ "$FZ_CASE_INSENSITIVE" != "1" ]]; then
if [[ "$base" == "$seg"* ]]; then
echo "$line"
fi
else
if [[ -n "$BASH_VERSION" ]]; then
if [[ "${base,,}" == "${seg,,}"* ]]; then
echo "$line"
fi
elif [[ -n "$ZSH_VERSION" ]]; then
if [[ "${base:l}" == "${seg:l}"* ]]; then
echo "$line"
fi
fi
fi
done
)
if [ -n "$starts_with_dir" ]; then
echo "$starts_with_dir"
else
find -L "$(builtin cd "$dir" 2>/dev/null && pwd)" -mindepth 1 -maxdepth 1 \
-type d 2>/dev/null | while read -r line; do \
base="${line##*/}"
if [[ "$seg" != .* && "$base" == .* ]]; then
continue
fi
if [[ "$FZ_CASE_INSENSITIVE" != "1" ]]; then
if [[ "$base" == *"$seg"* ]]; then
echo "$line"
fi
else
if [[ -n "$BASH_VERSION" ]]; then
if [[ "${base,,}" == *"${seg,,}"* ]]; then
echo "$line"
fi
elif [[ -n "$ZSH_VERSION" ]]; then
if [[ "${base:l}" == *"${seg:l}"* ]]; then
echo "$line"
fi
fi
fi
done
fi
fi
}
__fz_generate_matched_history_list() {
"$FZ_HISTORY_CD_CMD" -l $@ 2>&1 | while read -r line; do
if [[ "$line" == common:* ]]; then continue; fi
# Reverse the order and cut off the scores
echo "$line"
done | sed '1!G;h;$!d' | cut -b 12-
}
__fz_generate_matched_subdir_history_list() {
__fz_generate_matched_history_list -c "$@"
}
__fz_generate_matches() {
local cmd histories subdirs
if [[ -n "$BASH_VERSION" ]]; then
cmd=$([[ "${COMP_WORDS[0]}" =~ [[:space:]]*([^[:space:]]|[^[:space:]].*[^[:space:]])[[:space:]]* ]]; \
echo -n "${BASH_REMATCH[1]}")
elif [[ -n "$ZSH_VERSION" ]]; then
cmd=(${(z)LBUFFER})
cmd=${cmd[1]}
fi
if [[ "$cmd" == "$FZ_CMD" ]]; then
if [[ "$FZ_ABBREVIATE_HOME" == "1" ]]; then
if [ "$FZ_SUBDIR_TRAVERSAL" == "1" ]; then
cat <("$FZ_HISTORY_LIST_GENERATOR" "$@") \
<(__fz_generate_matched_subdir_list "$@") \
| sed '/^$/d' | sed -e "s,^$HOME,~," | awk '!seen[$0]++'
else
cat <("$FZ_HISTORY_LIST_GENERATOR" "$@") \
| sed '/^$/d' | sed -e "s,^$HOME,~," | awk '!seen[$0]++'
fi
else
if [ "$FZ_SUBDIR_TRAVERSAL" == "1" ]; then
cat <("$FZ_HISTORY_LIST_GENERATOR" "$@") \
<(__fz_generate_matched_subdir_list "$@") \
| sed '/^$/d' | awk '!seen[$0]++'
else
cat <("$FZ_HISTORY_LIST_GENERATOR" "$@") \
| sed '/^$/d' | awk '!seen[$0]++'
fi
fi
elif [[ "$cmd" == "$FZ_SUBDIR_CMD" ]]; then
histories=$("$FZ_SUBDIR_HISTORY_LIST_GENERATOR" "$@")
if [[ "$FZ_ABBREVIATE_HOME" == "1" ]]; then
if [ "$FZ_SUBDIR_TRAVERSAL" == "1" ]; then
cat <("$FZ_SUBDIR_HISTORY_LIST_GENERATOR" "$@") \
<(__fz_generate_matched_subdir_list "$@") \
| sed '/^$/d' | sed -e "s,^$HOME,~," | awk '!seen[$0]++'
else
cat <("$FZ_SUBDIR_HISTORY_LIST_GENERATOR" "$@") \
| sed '/^$/d' | sed -e "s,^$HOME,~," | awk '!seen[$0]++'
fi
else
if [ "$FZ_SUBDIR_TRAVERSAL" == "1" ]; then
cat <("$FZ_SUBDIR_HISTORY_LIST_GENERATOR" "$@") \
<(__fz_generate_matched_subdir_list "$@") \
| sed '/^$/d' | awk '!seen[$0]++'
else
cat <("$FZ_SUBDIR_HISTORY_LIST_GENERATOR" "$@") \
| sed '/^$/d' | awk '!seen[$0]++'
fi
fi
fi
}
__fz_fzf_prog() {
[ -n "$TMUX_PANE" ] && [ "${FZF_TMUX:-0}" != 0 ] && [ ${LINES:-40} -gt 15 ] \
&& echo "fzf-tmux -d${FZF_TMUX_HEIGHT:-40%}" || echo "fzf"
}
__fz_filter() {
fzf=$(__fz_fzf_prog)
FZF_DEFAULT_OPTS="--height ${FZF_TMUX_HEIGHT:-40%} --reverse \
--bind 'shift-tab:up,tab:down' $FZF_DEFAULT_OPTS" ${=fzf}
}
__fz_bash_completion() {
COMPREPLY=()
local selected slug
eval "slug=${COMP_WORDS[@]:(-1)}"
if [[ "$(__fz_generate_matches "$slug" | head | wc -l)" -gt 1 ]]; then
selected=$(__fz_generate_matches "$slug" | __fz_filter)
elif [[ "$(__fz_generate_matches "$slug" | head | wc -l)" -eq 1 ]]; then
selected=$(__fz_generate_matches "$slug")
else
return
fi
if [[ -n "$selected" ]]; then
if [[ "$FZ_ABBREVIATE_HOME" == "1" ]]; then
selected=${selected/#\~/$HOME}
fi
selected=$(printf %q "$selected")
if [[ "$selected" != */ ]]; then
selected="${selected}/"
fi
if [[ "$FZ_ABBREVIATE_HOME" == "1" ]]; then
selected=${selected/#$HOME/\~}
fi
COMPREPLY=( "$selected" )
fi
printf '\e[5n'
}
__fz_zsh_completion() {
setopt localoptions noshwordsplit noksh_arrays noposixbuiltins nonomatch
local args cmd selected slug
args=(${(z)LBUFFER})
cmd=${args[1]}
if [[ "$cmd" != "$FZ_CMD" && "$cmd" != "$FZ_SUBDIR_CMD" ]] \
|| [[ "$cmd" == "$FZ_CMD" && "$LBUFFER" =~ "^\s*$FZ_CMD$" ]] \
|| [[ "$cmd" == "$FZ_SUBDIR_CMD" && "$LBUFFER" =~ "^\s*$FZ_SUBDIR_CMD$" ]]; then
zle ${__fz_zsh_default_completion:-expand-or-complete}
return
fi
if [[ "${#args}" -gt 1 ]]; then
eval "slug=${args[-1]}"
fi
if [[ "$(__fz_generate_matches "$slug" | head | wc -l)" -gt 1 ]]; then
selected=$(__fz_generate_matches "$slug" | __fz_filter)
elif [[ "$(__fz_generate_matches "$slug" | head | wc -l)" -eq 1 ]]; then
selected=$(__fz_generate_matches "$slug")
else
return
fi
if [[ -n "$selected" ]]; then
if [[ "$FZ_ABBREVIATE_HOME" == "1" ]]; then
selected=${selected/#\~/$HOME}
fi
selected="${(q)selected}"
if [[ "$selected" != */ ]]; then
selected="${selected}/"
fi
if [[ "$FZ_ABBREVIATE_HOME" == "1" ]]; then
selected=${selected/#$HOME/\~}
fi
LBUFFER="$cmd $selected"
fi
type _zsh_autosuggest_clear >/dev/null && _zsh_autosuggest_clear
zle redisplay
typeset -f zle-line-init >/dev/null && zle zle-line-init
}
__fz_init_bash_completion() {
# Enable redrawing line by printf '\e[5n', but only for interactive shells.
if [[ "$-" =~ "i" ]]; then
bind '"\e[0n": redraw-current-line'
fi
complete -o nospace -F __fz_bash_completion "$FZ_CMD"
complete -o nospace -F __fz_bash_completion "$FZ_SUBDIR_CMD"
}
__fz_init_zsh_completion() {
[ -n "$__fz_zsh_default_completion" ] || {
binding=$(bindkey '^I')
# $binding[(s: :w)2]
# The command substitution and following word splitting to determine the
# default zle widget for ^I formerly only works if the IFS parameter contains
# a space via $binding[(w)2]. Now it specifically splits at spaces, regardless
# of IFS.
# It’s not compatitable with bash so use awk instead.
[[ $binding =~ 'undefined-key' ]] \
|| __fz_zsh_default_completion=$(echo "$binding" | awk '{print $2}')
unset binding
}
zle -N __fz_zsh_completion
bindkey '^I' __fz_zsh_completion
}
_fz() {
local rc
if [[ "$($FZ_HISTORY_LIST_GENERATOR "$@" | head | wc -l)" -gt 0 ]]; then
"$FZ_HISTORY_CD_CMD" "$@"
elif [[ "$FZ_SUBDIR_TRAVERSAL" -ne 0 ]]; then
err=$(builtin cd "${@: -1}" 2>&1)
rc=$?
if ! builtin cd "${@: -1}" 2>/dev/null; then
echo ${err#* } >&2
return $rc
fi
fi
}
_fzz() {
local rc
if [[ "$($FZ_SUBDIR_HISTORY_LIST_GENERATOR "$@" | head | wc -l)" -gt 0 ]]; then
if [[ -n "$BASH_VERSION" ]]; then
$FZ_SUBDIR_HISTORY_CD_CMD "$@"
elif [[ -n "$ZSH_VERSION" ]]; then
${=FZ_SUBDIR_HISTORY_CD_CMD} "$@"
fi
elif [[ "$FZ_SUBDIR_TRAVERSAL" -ne 0 ]]; then
err=$(builtin cd "${@: -1}" 2>&1)
rc=$?
if ! builtin cd "${@: -1}" 2>/dev/null; then
echo ${err#* } >&2
return $rc
fi
fi
}
if [[ -n "$BASH_VERSION" ]]; then
__fz_init_bash_completion
elif [[ -n "$ZSH_VERSION" ]]; then
__fz_init_zsh_completion
fi