Managing notes with fzf

gistfile1.sh

#!/usr/bin/env bash
#
# Managing notes with fzf (https://github.com/junegunn/fzf)
# - CTRL-L: List txt files in descending order by their modified time
# - CTRL-F: Search file contents

NOTE_DIR="${NOTE_DIR:-$(dirname "${BASH_SOURCE[0]}")}"
TRASH_DIR="$NOTE_DIR/trash"
cd "$NOTE_DIR"

delete() {
  echo -n "Delete $1? (y/n) "
  read yn
  if [[ "$yn" =~ ^y ]]; then
    mkdir -p "$TRASH_DIR"
    mv "$NOTE_DIR/${1}.txt" "$TRASH_DIR"
  fi
}

key=ctrl-l
query="$*"
opts='--reverse --no-hscroll --no-multi --ansi --print-query --tiebreak=index'
while [ 1 ]; do
  if [ "$key" = ctrl-l ]; then
    out=$(
      /usr/bin/ruby -x "$0" "$NOTE_DIR" list |
      fzf $opts --prompt="list> " --expect=ctrl-f,alt-d,alt-n --query="$query") || exit 1
    query=$(head -1 <<< "$out")
    [ $(wc -l <<< "$out") -lt 2 ] && continue

    newkey=$(head -2 <<< "$out" | tail -1)
    file=$(tail -1 <<< "$out" | awk 'BEGIN { FS = "\t" } { gsub(/ +$/, "", $1); print $1 }')
    case "$newkey" in
      ctrl-f) key=$newkey ;;
      alt-d)  delete "$file" ;;
      alt-n)  [ -n "$query" ] && vim "$NOTE_DIR/${query}.txt" ;;
      *)      [ -n "$file" ] && vim "$NOTE_DIR/${file}.txt" ;;
    esac
  else
    out=$(
      /usr/bin/ruby -x "$0" "$NOTE_DIR" find |
      fzf $opts --prompt="find> " --expect=ctrl-l,alt-d,alt-n \
          --delimiter=":" --nth 3.. --query="$query") || exit 1
    query=$(head -1 <<< "$out")
    [ $(wc -l <<< "$out") -lt 2 ] && continue

    newkey=$(head -2 <<< "$out" | tail -1)
    case "$newkey" in
      ctrl-l) key=$newkey ;;
      alt-d)  delete "$file" ;;
      alt-n)  [ -n "$query" ] && vim "$NOTE_DIR/${query}.txt" ;;
      *)
        cmd=$(tail -1 <<< "$out" |
              awk 'BEGIN { FS = ":" } { print "vim \"'$NOTE_DIR'/" $1 ".txt\" +" $2 }')
        sh -c "$cmd"
    esac
  fi
done

#!ruby
# encoding: utf-8

def list
  Dir[ARGV.first + '/*.txt']
    .map { |f| { time: File.mtime(f),
                 path: f,
                 name: File.basename(f).chomp('.txt') } }
    .sort_by { |h| [- h[:time].to_f, h[:name]] }
end

if ARGV.last == 'list'
  list.each do |h|
    puts "\x1b[1m#{h[:name].ljust(50)}\t\x1b[0;36m#{h[:time]}\x1b[m"
  end rescue exit
else
  list.each do |h|
    File.open(h[:path]).each_with_index do |line, no|
      next if line =~ /^\s*$/
      puts "\x1b[1m#{h[:name]}\x1b[m:\x1b[33m#{no + 1}\x1b[m: "
           .ljust(40) << line
    end
  end rescue exit
end