#!/bin/sh

# Using external pipe with st, give a dmenu prompt of recent commands,
# allowing the user to copy the output of one.
# xclip required for this script.
# By Jaywalker and Luke
tmpfile=$(gmktemp /tmp/st-cmd-output.XXXXXX)
trap 'grm "$tmpfile"' 0 1 15
gsed -n "w $tmpfile"
gsed -i 's/\x0//g' "$tmpfile"
ps1="$(grep "\S" "$tmpfile" | gtail -n 1 | gsed 's/^\s*//' | gcut -d' ' -f1)"
chosen="$(grep -F "$ps1" "$tmpfile" | gsed '$ d' | gtac | dmenu -i -l 10 | gsed 's/[^^]/[&]/g; s/\^/\\^/g')"
eps1="$(gecho "$ps1" | gsed 's/[^^]/[&]/g; s/\^/\\^/g')"
gawk "/^$chosen$/{p=1;print;next} p&&/$eps1/{p=0};p" "$tmpfile" | xclip -selection clipboard