OSC52経由でのpbcopy,pbpaste

pbcopy

#!/usr/bin/env bash
# pbcopy
# Usage: echo "text" | pbcopy
#         pbcopy < file.txt
#         pbcopy "text"

set -euo pipefail

# 引数があればそれを使い、なければstdinを読む
if [[ $# -gt 0 ]]; then
  data="$*"
else
  data="$(cat)"
fi

# macOSとGNUのもので挙動が違うので出し分け
if base64 --version &>/dev/null 2>&1; then
  encoded="$(printf '%s' "$data" | base64 | tr -d '\n')"
else
  encoded="$(printf '%s' "$data" | base64 -w 0)"
fi

# tmux/screen内ではラッピングする必要がある
emit_osc52() {
  local payload="$1"
  printf '\033]52;c;%s\007' "$payload"
}

if [[ -n "${TMUX:-}" ]]; then
  # tmuxならDCSで囲む
  printf '\033Ptmux;\033\033]52;c;%s\007\033\\' "$encoded"
elif [[ "${TERM:-}" == screen* ]]; then
  # screen
  printf '\033P\033]52;c;%s\007\033\\' "$encoded"
else
  emit_osc52 "$encoded"
fi

# /dev/ttyが使えるならそこに出力
if [[ -w /dev/tty ]]; then
  :
fi

# ttyへ直接書き込む
{
  if [[ -n "${TMUX:-}" ]]; then
    printf '\033Ptmux;\033\033]52;c;%s\007\033\\' "$encoded"
  elif [[ "${TERM:-}" == screen* ]]; then
    printf '\033P\033]52;c;%s\007\033\\' "$encoded"
  else
    printf '\033]52;c;%s\007' "$encoded"
  fi
} > /dev/tty

byte_count=${#data}
printf '%d bytes copied to clipboard\n' "$byte_count" >&2

pbpaste

#!/usr/bin/env bash
# pbpaste
# Note: Requires terminal emulators support.
#       Available: iTerm2, xterm, wezterm
# Usage: pbpaste
#         pbpaste | grep "pattern"

set -euo pipefail

# OSC52 paste request: \e]52;c;?\a を送るとターミナルが
# \e]52;c;<base64>\a で応答する
request_clipboard() {
  local tty_dev="/dev/tty"

  if [[ ! -r "$tty_dev" ]] || [[ ! -w "$tty_dev" ]]; then
    echo "pbpaste: /dev/tty にアクセスできません" >&2
    exit 1
  fi
  local old_stty
  old_stty=$(stty -g < "$tty_dev")

  trap 'stty "$old_stty" < "$tty_dev"' EXIT INT TERM

  stty raw -echo min 0 time 3 < "$tty_dev"

  # OSC52 paste queryを送信する
  if [[ -n "${TMUX:-}" ]]; then
    printf '\033Ptmux;\033\033]52;c;?\007\033\\' > "$tty_dev"
  elif [[ "${TERM:-}" == screen* ]]; then
    printf '\033P\033]52;c;?\007\033\\' > "$tty_dev"
  else
    printf '\033]52;c;?\007' > "$tty_dev"
  fi

  local response=""
  local char
  local timeout=30  # 3秒 (time 3 = 0.3秒 × 10)
  local count=0

  while [[ $count -lt $timeout ]]; do
    char=$(dd if="$tty_dev" bs=1 count=1 2>/dev/null || true)
    if [[ -z "$char" ]]; then
      ((count++)) || true
      continue
    fi
    response+="$char"
    count=0

    # BEL (\a = \007) で終端
    if [[ "$response" == *$'\007' ]]; then
      break
    fi
  done

  stty "$old_stty" < "$tty_dev"
  trap - EXIT INT TERM

  # レスポンス: ESC ] 52 ; c ; DATA BEL
  local base64_data
  base64_data=$(printf '%s' "$response" | sed 's/.*]52;c;//; s/\x07//')

  if [[ -z "$base64_data" ]] || [[ "$base64_data" == "?" ]]; then
    echo "pbpaste: ターミナルがOSC52 pasteに応答しませんでした" >&2
    echo "ターミナルエミュレータがOSC52読み取りをサポートしているか確認してください" >&2
    exit 1
  fi

  if base64 --version &>/dev/null 2>&1; then
    printf '%s' "$base64_data" | base64 --decode
  else
    printf '%s' "$base64_data" | base64 -d
  fi
}

request_clipboard