Script to set iTerm2 background image. iTerm2の背景画像を設定するスクリプト。

iterm2-set-background-image.sh

#!/usr/bin/env bash
usage() {
  echo "Usage: $(basename "$0") ...file" >&2
  echo "  Randomly select one file and set it as iTerm2 background image" >&2
  echo "  -u    Unset background image (remove it)" >&2
  echo "Example:" >&2
  echo "  iterm2-set-background-image.sh ~/.config/iterm2/images/*.{png,jpg}" >&2
  exit 1
}

# Check arguments
files=()
for f in "$@"; do
  if [[ $f == -u ]]; then
    files=("")
    break
  fi
  if [[ -f $f ]]; then
    files+=("$f")
  fi
done
if (( ${#files[@]} == 0 )); then
  usage
fi

# Randomly select one
idx=$(( RANDOM % ${#files[@]} ))
file=${files[$idx]}

# Set background image
script='
on run argv
  set arg1 to item 1 of argv
  tell application "iTerm2"
    tell current session of current window
      set background image to arg1
    end tell
  end tell
end run
'
osascript -e "$script" "$file"