mirror of
https://github.com/0intro/wmii
synced 2024-11-29 00:53:09 +03:00
99 lines
2.8 KiB
Bash
99 lines
2.8 KiB
Bash
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#!/bin/sh
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# This script will launch wimenu and provide command
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# completion for the first argument and filename completion
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# for each following argument, and execute the result.
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# Program name completion requires that a program list already
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# exist in $(wmiir namespace)/.proglist
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fifo="$HOME/.wmii/menu_fifo"
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mkfifo $fifo 2>/dev/null
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script=$(cat <<'!'
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BEGIN {
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progs = "cat $(wmiir namespace)/.proglist"
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# Print the first set of completions to wimenu’s fifo
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print read(progs) >fifo
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fflush(fifo)
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}
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# Process the input and provide the completions
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{
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# Skip the trailing part of the command.
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# If there is none, this is the result.
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if (!getline rest) {
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print
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exit
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}
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if (!match($0, /.*[ \t]/))
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# First argument, provide the program list
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update(0, progs)
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else {
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# Set the offset to the location of the last
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# space, and save that part of the completion
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offset = RLENGTH
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str = substr($0, offset + 1)
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# If we're completing a sub-directory, adjust
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# the offset to the position of the last /
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if (match(str, ".*/"))
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offset += RLENGTH
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# If the last component of the path begins with
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# a ., include hidden files
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arg = ""
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if(match(str, "(^|/)\\.[^/]*$"))
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arg = "-A"
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# Substitute ~/ for $HOME/
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sub("^~/", ENVIRON["HOME"] "/", str)
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# Strip the trailing filename
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sub("[^/]+$", "", str)
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update(offset, "ls " arg quote(str))
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}
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}
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# Push out a new set of completions
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function update(offset, cmd) {
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# Only push out the completion if the offset or the
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# option of ls has changed. The behavior will be the
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# same regardless, but this is a minor optimization
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if (offset != loffset || cmd != lcmd) {
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loffset = offset
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lcmd = cmd
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cmpl = read(cmd)
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print offset >fifo
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print cmpl >fifo
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fflush(fifo)
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}
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}
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# Quote a string. This should work in any Bourne
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# or POSIX compatible shell.
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function quote(str) {
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if (!match(str, /[\[\](){}$'"^#~!&;*?|<>]/))
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return str
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gsub(/\\/, "'\\\\'", str)
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gsub(/'/, "'\\''", str)
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return "'" str "'"
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}
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# Read the output of a command and return it
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function read(cmd) {
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if (cmd in cache)
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return cache[cmd]
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res = ""
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while (cmd | getline)
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res = res quote($0) "\n"
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close(cmd)
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return cache[cmd] = res
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}
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!
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)
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res="$(wimenu -c "$@" <$fifo | awk -v "fifo=$fifo" "$script")"
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exec ${SHELL:-sh} -c "exec $res"
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