reload-safari-tab - use osascript to reload a safari tab by url substring - composable with entr for auto-reloading

reload-safari-tab.sh

#!/bin/bash

set -euo pipefail

usage() {
  echo "$(basename "$0") - Reload any Safari tabs that contain the given string."
  echo "Usage:"
  echo "  $(basename "$0") STRING"
  echo "  fd <opts> | entr reload-safari-tab STRING"
}

if [ $# != 1 ]; then
  echo "Error: specify exactly one argument. Use -h for help." >&2
  exit 1
fi

if [ "$1" == "-h" ] || [ "$1" == "--help" ]; then
  usage
  exit 0
fi

# Credit: https://brettterpstra.com/2011/03/07/watch-for-file-changes-and-refresh-your-browser-automatically/
osascript <<OSASCRIPT
  tell application "Safari"
    set windowList to every window
    repeat with aWindow in windowList
      set tabList to every tab of aWindow
      repeat with atab in tabList
        if (URL of atab contains "$1") then
          tell atab to do JavaScript "window.location.reload()"
        end if
      end repeat
    end repeat
  end tell
OSASCRIPT