423 lines
14 KiB
Bash
423 lines
14 KiB
Bash
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##
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## bash-fzf.rc -- Improve GNU Bash with FZF Matching
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## Copyright (c) 1997-2020 Dr. Ralf S. Engelschall <http://engelschall.com>
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##
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## Permission is hereby granted, free of charge, to any person obtaining
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## a copy of this software and associated documentation files (the
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## "Software"), to deal in the Software without restriction, including
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## without limitation the rights to use, copy, modify, merge, publish,
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## distribute, sublicense, and/or sell copies of the Software, and to
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## permit persons to whom the Software is furnished to do so, subject to
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## the following conditions:
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##
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## The above copyright notice and this permission notice shall be included
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## in all copies or substantial portions of the Software.
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##
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## THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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## EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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## MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
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## IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
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## CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
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## TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
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## SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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##
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# we enhance bash(1) with fzf(1) only for interactive sessions...
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if [[ $- =~ .*i.* ]]; then
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#
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# ==== COMMON ====
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#
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# identification
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__fzf_version="2.1.3"
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# common fzf(1) processing prolog
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__fzf_prolog () {
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echo -n -e "\e[1A"
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}
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# determine color support
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__fzf_fzf_options="--color=bw"
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__fzf_term_colors=$(tput colors 2>/dev/null)
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if [[ -n $__fzf_term_colors && $__fzf_term_colors -ge 8 ]]; then
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__fzf_fzf_options="--color=light,bg:-1,fg:-1,hl:1,bg+:0,fg+:15,hl+:1,gutter:-1,pointer:1,info:4,prompt:-1"
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fi
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# common fzf(1) execution
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__fzf_fzf () {
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fzf --exact \
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--no-sort \
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--no-mouse \
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--reverse \
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--height=6 \
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--no-bold \
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--inline-info \
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--bind="ctrl-k:kill-line" \
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--bind="backward-eof:abort" \
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--expect=ctrl-e \
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$__fzf_fzf_options \
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"$@"
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}
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# common fzf(1) processing epilog
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__fzf_epilog () {
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key=$(echo "$1" | LC_ALL=C sed -e 1q)
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cmd=$(echo "$1" | LC_ALL=C sed -e 1d)
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if [[ $key == "" && $cmd == "" ]]; then
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echo -n -e "\e[1A"
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history -s
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history -a
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elif [[ $key == ctrl-e ]]; then
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read -e -p "\$ " -i "$cmd" cmd
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history -s -- $cmd
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history -a
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eval "$cmd"
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else
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history -s -- $cmd
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history -a
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echo "\$ $cmd"
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eval "$cmd"
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fi
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}
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# common finding of config files in current, parent and home directories
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__fzf_config_files () {
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local filename="$1"
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local files=""
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local dir=$(pwd)
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local homedir=$(cd $HOME && pwd)
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local homeseen="no"
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while [[ $dir != "/" ]]; do
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if [[ -f "$dir/$filename" ]]; then
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if [[ $files == "" ]]; then
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files="$dir/$filename"
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else
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files="$files $dir/$filename"
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fi
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if [[ $dir == $homedir ]]; then
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homeseen="yes"
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fi
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fi
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dir=$(cd $dir/.. && pwd)
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done
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if [[ $homeseen == "no" && -f "$HOME/$filename" ]]; then
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if [[ $files == "" ]]; then
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files="$HOME/$filename"
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else
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files="$files $HOME/$filename"
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fi
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fi
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echo "$files"
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}
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#
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# ==== COMMAND HISTORY ====
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#
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# configure Bash history processing
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shopt -s cmdhist
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shopt -s histappend
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shopt -s lithist
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HISTSIZE=${HISTSIZE-1000}
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HISTFILESIZE=${HISTFILESIZE-1000}
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HISTIGNORE=${HISTIGNORE-"&:[ ]*:exit:ls:bg:fg:history:clear"}
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HISTTIMEFORMAT=${HISTTIMEFORMAT-"%Y-%m-%d %H:%M:%S "}
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HISTCONTROL=${HISTCONTROL-"erasedups:ignoredups:ignorespace"}
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# the improved history functionality
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__fzf_history () {
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__fzf_prolog
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history -a
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local cmd=$(history | LC_ALL=C sort -rn | LC_ALL=C sed -e 1d | LC_ALL=C cut -c29- | __fzf_fzf --prompt="\$ ")
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__fzf_epilog "$cmd"
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}
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# override Bash history search (CTRL+r) with improved history functionality
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bind '"\C-r": "\C-a\C-k __fzf_history\C-j"'
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#
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# ==== COMMAND BOOKMARKING ====
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#
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# the dedicated filename
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__fzf_bookmark_file=".bash_bookmark"
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# the additional bookmarking functionality
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__fzf_bookmark () {
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__fzf_prolog
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local files=$(__fzf_config_files $__fzf_bookmark_file)
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if [[ $files != "" ]]; then
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cmd=$(cat $files | LC_ALL=C sed -e '/^ *#.*/d' -e '/^ *$/d' | __fzf_fzf --prompt='$ ')
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__fzf_epilog "$cmd"
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else
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echo "-bash: bookmark: ERROR: no file \"$__fzf_bookmark_file\" in current, parent(s) or home directory found"
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fi
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}
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# provide additional Bash bookmarking functionality (CTRL+b)
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bind '"\C-b": "\C-a\C-k __fzf_bookmark\C-j"'
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# provide convenient command for editing bookmarked commands
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bookmark () {
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# the files to operate on
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local files=$(__fzf_config_files $__fzf_bookmark_file)
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local file=""
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# command-line argument parsing
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local usage="bookmark [-h|--help] [-g|--global] [-l|--local] [-d|--dir <dir>] [-s|--show] [-e|--edit] [-x|--exec] [-a|--add] [-r|--remove] [<cmd>]"
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local mode="parent"
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local cmd="none"
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while [[ $# -gt 0 ]]; do
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case "$1" in
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-g|--global ) mode="global"; shift ;;
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-l|--local ) mode="local"; shift ;;
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-d|--dir ) mode="direct"; file="$2/$__fzf_bookmark_file"; shift; shift ;;
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-s|--show ) cmd="show"; shift ;;
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-e|--edit ) cmd="edit"; shift ;;
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-x|--exec ) cmd="exec"; shift ;;
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-a|--add ) cmd="add"; shift ;;
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-r|--remove ) cmd="remove"; shift ;;
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-h|--help ) cmd="help"; shift ;;
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* ) break ;;
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esac
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done
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if [[ $cmd == "none" ]]; then
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echo "-bash: bookmark: ERROR: invalid number of arguments" 2>&1
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echo "-bash: bookmark: USAGE: $usage" 2>&1
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return 1
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fi
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if [[ $cmd == "help" ]]; then
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echo "bash: bookmark: USAGE: $usage"
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return 0
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fi
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# determine particular bookmark file
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if [[ $mode == "global" ]]; then
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file="$HOME/$__fzf_bookmark_file"
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elif [[ $mode == "local" ]]; then
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file="$PWD/$__fzf_bookmark_file"
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elif [[ $mode == "parent" ]]; then
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file=$(echo "$files" | LC_ALL=C sed -e 's; .*;;')
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if [[ $file == "" ]]; then
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file="$HOME/$__fzf_bookmark_file"
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fi
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fi
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# perform the commands
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if [[ $cmd == "show" ]]; then
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# show bookmarked commands (in all files)
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if [[ $files != "" ]]; then
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for file in $files; do
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LC_ALL=C sed -e '/^ *#.*/d' -e '/^ *$/d' -e "s;^;$file: ;" <$file
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done
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fi
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return 0
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elif [[ $cmd == "edit" ]]; then
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# edit bookmarked commands (in particular file)
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echo "bash: bookmark: editing commands in \"$file\""
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${EDITOR-vi} $file
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return $?
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elif [[ $cmd == "add" ]]; then
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# add bookmarked command (to particular file)
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if [[ $# -gt 0 ]]; then
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entry="$*"
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else
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entry=$(fc -l -n -1 | LC_ALL=C sed -e 's;^[ ]*;;')
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fi
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echo "bash: bookmark: adding command to \"$file\": $entry"
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echo "$entry" >>$file
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return 0
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elif [[ $cmd == "remove" ]]; then
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# remove bookmarked command (from particular file)
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if [[ $# -gt 0 ]]; then
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entry="$*"
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else
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entry=$(fc -l -n -1 | LC_ALL=C sed -e 's;^[ ]*;;')
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fi
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echo "bash: bookmark: removing command from \"$file\": $entry"
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LC_ALL=C sed -e "/^$*/d" <$file >$file.new
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if cmp $file $file.new >/dev/null 2>&1; then
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rm -f $file.new
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echo "-bash: bookmark: ERROR: failed to remove command" 2>&1
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return 1
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fi
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cp $file.new $file
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rm -f $file.new
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return 0
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fi
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}
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#
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# ==== DIRECTORY CHANGING ====
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#
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# the dedicated filename
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__fzf_chdir_file=".bash_cdpaths"
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# configure Bash directory processing
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shopt -s cdspell
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shopt -s dirspell
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shopt -s globstar
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shopt -u direxpand
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PROMPT_DIRTRIM=10
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# provide command for scanning directory trees
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cdpaths () {
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# the files to operate on
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local files=$(__fzf_config_files $__fzf_chdir_file)
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local file=""
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# command-line argument parsing
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local usage="cdpaths [-h|--help] [-g|--global] [-l|--local] [-d|--dir <dir>]"
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local mode="parent"
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local cmd="none"
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while [[ $# -gt 0 ]]; do
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case "$1" in
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-g|--global ) mode="global"; shift ;;
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-l|--local ) mode="local"; shift ;;
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-d|--dir ) mode="direct"; file="$2/$__fzf_chdir_file"; shift; shift ;;
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-h|--help ) cmd="help"; shift ;;
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* ) break ;;
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esac
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done
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if [[ $cmd == "help" ]]; then
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echo "bash: cdpaths: USAGE: $usage"
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return 0
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fi
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# determine particular cdpaths file
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if [[ $mode == "global" ]]; then
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file="$HOME/$__fzf_chdir_file"
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elif [[ $mode == "local" ]]; then
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file="$PWD/$__fzf_chdir_file"
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elif [[ $mode == "parent" ]]; then
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file=$(echo "$files" | LC_ALL=C sed -e 's; .*;;')
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if [[ $file == "" ]]; then
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file="$HOME/$__fzf_chdir_file"
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fi
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fi
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# determine paths to ignore
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local ignore=${BASH_CDPATHS_IGNORE:-'/\.'}
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# find and store directories
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rm -f "$file"
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local dir=$(dirname "$file")
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if [[ $mode == "global" ]]; then
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# crawl all global directories
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local cdpaths="${BASH_CDPATHS:-$HOME}"
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local OIFS="$IFS"; IFS=":"
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for cdpath in $cdpaths; do
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IFS="$OIFS"
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find "$cdpath" -type d -print 2>/dev/null | \
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LC_ALL=C egrep -v "$ignore" | \
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LC_ALL=C sed -e "s;^$dir/*;;" -e '/^$/d' >>"$file"
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done
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IFS="$OIFS"
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else
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# crawl relative directory
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find "$dir" -type d -print 2>/dev/null | \
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LC_ALL=C egrep -v "$ignore" | \
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LC_ALL=C sed -e "s;^$dir/*;;" -e '/^$/d' >"$file"
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fi
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local n=$(wc -l "$file" | awk '{ print $1; }')
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echo "bash: cdpaths: cached $n directory entries in $file"
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}
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# expand .bash_cdpaths files content
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__fzf_chdir_expand () {
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local homedir=$(cd $HOME && pwd)
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for cdpathfile in "$@"; do
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local cdpathdir=$(dirname $cdpathfile)
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if [[ $cdpathdir == $homedir ]]; then
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cdpathdir="~"
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fi
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echo "cd $cdpathdir"
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cat $cdpathfile | LC_ALL=C sed -e "s;^\\([^/]\\);$cdpathdir/\\1;" -e "s;^;cd ;"
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done
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}
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# the additional change directory functionality
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__fzf_chdir () {
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__fzf_prolog
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local files=$(__fzf_config_files $__fzf_chdir_file)
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if [[ $files != "" ]]; then
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cmd=$(__fzf_chdir_expand $files | __fzf_fzf --prompt='$ cd ')
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__fzf_epilog "$cmd"
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else
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echo "-bash: chdir: ERROR: no file \"$__fzf_chdir_file\" in current, parent(s) or home directory found"
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fi
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}
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# provide additional Bash change directory functionality (CTRL+g)
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bind '"\C-g": "\C-a\C-k __fzf_chdir\C-j"'
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# declare reverse DIRSTACK array
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declare -a DIRSTACKREV=()
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# declare cd(1) hooks
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declare -a __fzf_cd_hooks=()
|
||
|
|
|
||
|
|
# enhance change directory command
|
||
|
|
cd () {
|
||
|
|
local result=0
|
||
|
|
|
||
|
|
# change current working directory
|
||
|
|
if [[ $1 == "-" ]]; then
|
||
|
|
# go to previous working directory on forward directory stack
|
||
|
|
# and move this directory onto the reverse directory stack
|
||
|
|
if [[ ${#DIRSTACK[*]} -gt 1 ]]; then
|
||
|
|
DIRSTACKREV[${#DIRSTACKREV[*]}]="${DIRSTACK[0]}"
|
||
|
|
builtin popd >/dev/null
|
||
|
|
result="$?"
|
||
|
|
else
|
||
|
|
echo "-bash: cd: ERROR: no more previous working directories on forward directory stack" 1>&2
|
||
|
|
result=1
|
||
|
|
fi
|
||
|
|
elif [[ $1 == "+" ]]; then
|
||
|
|
# go to previous working directory on reverse directory stack
|
||
|
|
# and move this directory onto the forward directory stack
|
||
|
|
if [[ ${#DIRSTACKREV[*]} -gt 0 ]]; then
|
||
|
|
local i=$((${#DIRSTACKREV[*]} - 1))
|
||
|
|
eval "builtin pushd ${DIRSTACKREV[$i]} >/dev/null"
|
||
|
|
result="$?"
|
||
|
|
unset DIRSTACKREV[$i]
|
||
|
|
else
|
||
|
|
echo "-bash: cd: ERROR: no more previous working directories on reverse directory stack" 1>&2
|
||
|
|
result=1
|
||
|
|
fi
|
||
|
|
else
|
||
|
|
# support a quick "go to home directory" use case
|
||
|
|
if [[ $# -eq 0 ]]; then
|
||
|
|
set -- $HOME
|
||
|
|
fi
|
||
|
|
|
||
|
|
# go to next working directory
|
||
|
|
# (which implicitly pushed it onto the forward directory stack)
|
||
|
|
pushd ${1+"$@"} >/dev/null 2>/dev/null
|
||
|
|
result="$?"
|
||
|
|
if [[ $result -eq 0 ]]; then
|
||
|
|
# avoid duplicates on forward directory stack
|
||
|
|
if [[ "${#DIRSTACK[*]}" -ge 2 && "${DIRSTACK[0]}" == "${DIRSTACK[1]}" ]]; then
|
||
|
|
builtin popd -n >/dev/null
|
||
|
|
fi
|
||
|
|
|
||
|
|
# erase reverse directory stack
|
||
|
|
DIRSTACKREV=()
|
||
|
|
else
|
||
|
|
echo "-bash: cd: ERROR: $*: No such directory" 1>&2
|
||
|
|
fi
|
||
|
|
fi
|
||
|
|
|
||
|
|
# allow external hooks to execute after we successfully switched the directory
|
||
|
|
if [[ $result -eq 0 ]]; then
|
||
|
|
for hook in "${__fzf_cd_hooks[@]}"; do
|
||
|
|
eval "${hook}"
|
||
|
|
done
|
||
|
|
fi
|
||
|
|
|
||
|
|
return $result
|
||
|
|
}
|
||
|
|
fi
|
||
|
|
|