macOS Sierra Automater service to open iTerm2 from a finder window

Open in iTerm.workflow

-- Adapted from these sources:
-- http://peterdowns.com/posts/open-iterm-finder-service.html
-- https://gist.github.com/cowboy/905546
-- https://gist.github.com/ttimasdf/7bb02ed419db4b472b534e1a57008a3b
-- 
-- Modified to work with files as well, cd-ing to their container folder
on run {input, parameters}
	tell application "Finder"
		set my_file to first item of input
		set is_folder to (do shell script "file -b " & quoted form of (POSIX path of my_file))
		if is_folder ends with "directory" then
			set dir_path to quoted form of (POSIX path of my_file)
		else
			set dir_path to quoted form of (POSIX path of (container of my_file as string))
		end if
	end tell
	CD_to(dir_path)
end run

on CD_to(theDir)
	tell application "iTerm"
		set go_dir to "cd " & theDir
		set ctrlL to character id 12
		
		-- Count windows before launching, to determine if to make a new session.
		set startCount to (count of windows)
		
		activate
		
		-- Make a new window if iTerm wasn't open.
		if startCount = 0 then
			create window with default profile
		end if
		
		tell current window
			-- Create a new tab if a window is already open, otherwise use newly opened one.
			if startCount > 0 then
				create tab with default profile
			end if
			
			tell current session of current tab
				write text go_dir
				write text ctrlL newline no -- Clear the terminal after loading.
			end tell
		end tell
	end tell
end CD_to