nnn/plugins/fzhist

#!/usr/bin/env sh

# Description: Fuzzy find a command from history, edit in $EDITOR and run as a command
#              Currently supports only bash and fish history
#
# Shell: POSIX compliant
# Author: Arun Prakash Jana

shellname="$(basename "$SHELL")"

if [ "$shellname" = "bash" ]; then
    hist_file="$HOME/.bash_history"
    entry="$(cat "$hist_file" | fzy)"
elif [ "$shellname" = "fish" ]; then
    hist_file="$HOME/.config/fish/fish_history"
    entry="$(cat "$hist_file" | grep "\- cmd: " | cut -c 8- | fzy)"
fi

if ! [ -z "$entry" ]; then
    tmpfile=$(mktemp)
    echo "$entry" >> $tmpfile
    $EDITOR $tmpfile

    cmd="$(cat $tmpfile)"

    if ! [ -z "$cmd" ]; then
        $SHELL -c "$cmd"
    fi

    rm $tmpfile

    echo -n "Press any key to exit"
    read input
fi