Auto-scp screenshots to a webserver and copy the url to your clipboard (on OSX)

autoshot.rb

#!/usr/bin/env ruby

# autoshot.rb
#
# Ryan Funduk (ryanfunduk.com)
# Licensed under WTFPL (http://sam.zoy.org/wtfpl)
#
# Watch a directory and scp new files to a host that
# is running a webserver. Only works on OSX, could be
# made to work on other platforms with alternatives
# to rb-fsevent and scp.
#
# Writes a list of already processed files directly
# into this script (yes, *this file*).
#
# Warning:
#   This script will overwrite your clipboard when
#   you take a screenshot!
#
# Dependencies:
#   ruby (only tested on 1.9.3)
#   rb-fsevent (only tested with 0.9.2)
#
# Usage:
#   Configure OSX to place screenshots somewhere out of the way:
#     defaults write com.apple.screencapture location '~/Pictures/Screenshots'
#     killall SystemUIServer
#
#   Change the values below in this script such that:
#
#     'scp' is an scp(1) compatible target
#       e.g `user@host:/var/www/mysite/img/screenshots`
#     'url' is the hostname the files will be available at
#       e.g `http://mysite.com/img/screenshots`
#     'watch_dir' is the directory to watch
#       e.g `~/Pictures/Screenshots`
#
#   Now run it either plainly:
#     ruby autoshot.rb
#   Files not already processed will be uploaded
#   (so be careful because your clipboard will only
#   get the last one)
#
#   Or 'daemonize', set 'debug' to false in CONFIG, and:
#     ruby autoshot.rb &
#   :)

require 'rb-fsevent'
require 'digest/sha1'

CONFIG = {
  debug: true,
  scp: "user@host:/some/path",
  url: "http://example.com/some/path",
  watch_dir: File.expand_path("~/Pictures/Screenshots")
}

$info_pos = DATA.pos

def sync(*args)
  DATA.reopen( __FILE__, 'r' )
  DATA.seek $info_pos
  processed = DATA.read.split("\n").reject { |f| f.strip.length == 0 }
  all = Dir.glob( File.join(CONFIG[:watch_dir], '*') )

  (all - processed).each do |file|
    filename = File.basename( file )
    hash = Digest::SHA1.hexdigest( filename )
    ext = File.extname( file )
    new_name = "#{hash}#{ext}"

    print "Processing #{filename}... " if CONFIG[:debug]
    `scp '#{file}' #{CONFIG[:scp]}/#{new_name}`
    `echo #{CONFIG[:url]}/#{new_name} | pbcopy`
    print "DONE\n" if CONFIG[:debug]

    processed << file
  end

  DATA.reopen( __FILE__, 'a+' )
  DATA.truncate( $info_pos )
  DATA.puts processed.join("\n")
  DATA.flush
end

puts "Started..." if CONFIG[:debug]

sync()

watcher = FSEvent.new
watcher.watch(
  CONFIG[:watch_dir],
  latency: 1, no_defer: true,
  &method(:sync)
)
watcher.run

puts "Quitting..." if CONFIG[:debug]

__END__