344 lines
8.2 KiB
Bash
344 lines
8.2 KiB
Bash
## -*- mode:sh -*- #
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################################################################################
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## Shell -- Functions.
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################################################################################
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## Functions that can be useful outside a shell (like in Emacs or Ranger) should
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## be written in stand-alone scripts instead.
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## Colored man pager.
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man()
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{
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local BUF
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# Justify man pager to current window size.
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BUF=$(tput cols)
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[ $BUF -gt $MANWIDTH ] && BUF=$MANWIDTH
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# mb = ?
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# md = bold (titles, commands)
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# so = status bar
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# us = italic (arguments, files)
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env \
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MANWIDTH=$BUF \
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LESS_TERMCAP_mb=$(printf "\e[1;31m") \
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LESS_TERMCAP_md=$(printf "\e[0;36m") \
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LESS_TERMCAP_me=$(printf "\e[0m") \
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LESS_TERMCAP_se=$(printf "\e[0m") \
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LESS_TERMCAP_so=$(printf "\e[1;4;37m") \
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LESS_TERMCAP_ue=$(printf "\e[0m") \
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LESS_TERMCAP_us=$(printf "\e[0;33m") \
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man "$@"
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}
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## Make directories and change into the first one.
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mkcd () {
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mkdir -p "$@"
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cd "$1"
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}
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## Quick search.
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search()
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{
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find . -iname "*$1*"
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}
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## Vim-only: search the vim reference manual for a keyword.
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## Usage: :h <keyword>
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if command -v vim >/dev/null; then
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:h()
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{
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vim --cmd ":silent help $@" --cmd "only";
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}
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fi
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## Term properties
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termcolors256()
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{
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local x y o
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x=$(tput op)
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y=$(printf %76s)
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for i in {0..256}; do
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o=00$i
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echo -e "${o:${#o}-3:3} $(tput setaf $i;tput setab $i)${y// /=}$x"
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done
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}
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## Will not work for Bourne Shell.
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termcolors()
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{
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local T
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# The test text. Must be 3 letters.
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T='Doh'
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echo -e "\n 40m 41m 42m 43m\
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44m 45m 46m 47m";
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for FGs in ' m' ' 1m' ' 30m' '1;30m' ' 31m' '1;31m' ' 32m' \
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'1;32m' ' 33m' '1;33m' ' 34m' '1;34m' ' 35m' '1;35m' \
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' 36m' '1;36m' ' 37m' '1;37m';
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do FG=${FGs// /}
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echo -en " $FGs \033[$FG $T "
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for BG in 40m 41m 42m 43m 44m 45m 46m 47m;
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do echo -en "$EINS \033[$FG\033[$BG $T \033[0m";
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done
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echo;
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done
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echo
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}
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termprop()
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{
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infocmp -1 | sed -nu 's/^[ \000\t]*//;s/[ \000\t]*$//;/[^ \t\000]\{1,\}/!d;/acsc/d;s/=.*,//p'| column -c80
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}
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termsupport()
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{
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for T in `find "/usr/share/terminfo" -type f -printf '%f\n'`;do
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echo "$T `tput -T $T colors`"
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done | sort -nk2
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}
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if command -v highlight >/dev/null ; then
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hlt-viewer ()
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{
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local SAMPLE DUMMY
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_printhelp()
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{
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cat<<EOF
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Usage: $1
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Highlight themes viewer for 256-colors terminals.
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highlight is a tool for listing printing. This script displays a preview for
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every highlight's theme. Press ENTER to display next preview. Press anything
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else then ENTER to quit.
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EOF
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}
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if [ $# -gt 0 ]; then
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_printhelp "$0"
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return
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fi
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SAMPLE="$(cat <<EOF
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void function(char* pointer, int &ref)
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{
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int integer=3;
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char* string="Hello!";
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// Line comment
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for ( i=0; i<10; i++)
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{
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printf("Sum: %d\n", i*( integer+14 ) );
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}
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}
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EOF
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)"
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for i in $(highlight -w | grep -v "\s\|^$"); do
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echo "******************** $i ********************"
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highlight -S c -O xterm256 <(echo "$SAMPLE") -s "$i"
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read DUMMY
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if [ -n "$DUMMY" ]; then
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return
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fi
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done
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}
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fi
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## Keymap view in terminal
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echokeymap ()
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{
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if [ $# -ne 1 ]; then
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1="$HOME/.xkb/symbols/usex"
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fi
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awk '/━|┃|│|─/ {gsub(/^\/\/ /, ""); print $0}' "$1"
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}
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## Extended info
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typex()
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{
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local xpath
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if [ $# -ne 1 ] || ! command -v "$1" >/dev/null; then
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echo "Provide an existing command as parameter."
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return
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fi
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if [ -z "$(command -v "$1" | grep ^/)" ]; then
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type "$1"
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return
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fi
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xpath="$(type $1 | cut -d' ' -f3)"
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ls -l "$xpath"
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file "$xpath" | cut -d':' -f2 | cut -b 2-
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}
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## BAD CODE. This function will try to find an input binary file in the content
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## of binary files in current folder. It does not work on big file because
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## 'find' and 'grep' have an argument length limit.
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bindatasearch()
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{
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echo "Deprecated function."
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return
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if [ $# -ne 2 ] -; then
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echo "Usage: $0 FILECHUNK BIGFILE"
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return
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fi
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if [ $(du -b Cover.jpg | awk '{print $1}') -gt 1048576 ]; then
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echo "[$1] file size must not exceed 1MB."
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return
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fi
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## The awk command suppresses first column, spaces and line breaks.
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local SOURCE
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SOURCE=$(od -tx8 "$1" | awk '($1="")1 gsub ( /\s/,"") { printf ("%s", $0) }')
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local FILEDUMP
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FILEDUMP=$(od -tx8 "$1" | awk '($1="")1 gsub ( /\s/,"") { printf ("%s", $0) }')
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# grep -q "$SOURCE" <(echo "$FILEDUMP")
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## This special, not well-known syntax allows us to execute a set of
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## functions upon the result of find. Since everything MUST be between
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## simple quotes, we cannot use external variables directly. So we pass the
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## $SOURCE variable as argument. The underscore at the end allows the use of
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## arguments. Note it will not work
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# find "$TARGET" -type f -exec sh -c '
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# # FILEDUMP=$(od -tx8 "$1" | awk '"'"'($1="")1 gsub ( /\s/,"") { printf ("%s", $0) }'"'"')
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# # grep -q "$2" <(echo $FILEDUMP)
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# # [ $? -eq 0 ] && echo "$1"
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# ' _ {} "$SOURCE" \;
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}
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browse ()
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{
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# Compatible with ranger 1.4.2 through 1.6.*
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#
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# Automatically change the directory in bash after closing ranger.
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#
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# This is a shell wrapper script to automatically change the directory to the
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# last visited one after ranger quits. To undo the effect of this function, you
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# can type "cd -" to return to the original directory.
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tempfile="$(mktemp)"
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ranger --choosedir="$tempfile" "${@:-$(pwd)}"
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if [ -f "$tempfile" ] && [ "$(cat -- "$tempfile")" != "$(echo -n `pwd`)" ]; then
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cd -- "$(cat "$tempfile")"
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fi
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rm -f -- "$tempfile"
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}
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## Webcam testing
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webcam ()
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{
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## With mplayer-like player.
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mpv -fps 30 -tv driver=v4l2:width=640:height=480:device=/dev/video0 tv:// -flip
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}
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xscreen ()
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{
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## Does not work?
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cvt $1 $2
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echo "$(cvt $1 $2 | tail -1 | cut -d' ' -f2-)"
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xrandr --newmode "$(cvt $1 $2 | tail -1 | cut -d' ' -f2-)"
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}
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## Xrandr
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xmulti ()
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{
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if [ $# -ne 1 ]; then
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echo "Usage: $0 VIDEOPORT"
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return
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fi
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xrandr --output "$1" --auto --right-of $(xrandr | sed -n "/current/{n;p;q}" | cut -f1 -d" ")
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}
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xmultioff ()
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{
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if [ $# -ne 1 ]; then
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echo "Usage: $0 VIDEOPORT"
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return
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fi
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xrandr --output "$1" --off
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}
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##==============================================================================
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## Pacman functions
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##==============================================================================
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if command -v pacman >/dev/null; then
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## Get detailed file list for the specified packages, omitting folders.
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pql ()
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{
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pacman -Ql "$@" | grep -v "/$"
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}
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pli ()
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{
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expac -t %F-%T '%-8l %n' | sort -rn | head -${1:-30}
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}
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fi
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##==============================================================================
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## FreeBSD functions
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##==============================================================================
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if [ "$(uname)" = FreeBSD ]; then
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## TODO: useless ?
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# mqs()
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# {
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# local str="$(echo "$@" | sed -E 's/[ \t]+/\\|/g')"
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# (cd /usr/ports && make quicksearch name="$str")
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# }
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port-list()
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{
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pkg_info | cut -f1 -d' '
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}
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port-size()
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{
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pkg_info -Qsb "$@" | sed 's/\([^:]*\):\(.*\)/\2 KiB \1/g'
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}
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mcd()
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{
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local DEST=$(pkg_search -r "$@" | head -n1 | awk '{print $2}')
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cd "$DEST"
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}
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fi
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##==============================================================================
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## TeXlive functions
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##==============================================================================
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## TeXlive
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if [ -d "/usr/local/texlive" ]; then
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## WARNING: it is important to set umask properly, otherwise users might
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## not have authorization to use the packages.
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## This is bad pratice to write args without double quotes, but since we
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## are sure there is no space in TeX Live packages, it is OK here.
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tli ()
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{
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sudo sh -c 'umask 022 && tlmgr install $0 $@' "$@"
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}
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tlr ()
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{
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sudo sh -c 'umask 022 && tlmgr remove $0 $@' "$@"
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}
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fi
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