Rake tasks to help you with family photos

Yesterday while I tried once again to download photos from my camera with digikam, it gave me a SIGABRT crash, I'm using kde 4.1.3, so I tried to build new deb package for digikam 0.10.beta6 and I did not succeed, many kde dependencies and I could not want to break my installation.

So as quick solution I wrote a small Rakefile to help me download photos from my camera and arrange them in folders by photo date (Like I used digikam). I want to share this rake tasks, maybe it will save time to other people. Currently it only support jpeg files. Bonus: it can rotate photos based on exif information related photo information.

rake ph:get      # Get photos from camera to current folder
rake ph:delete   # Delete all photos from camera
rake ph:arrange  # Arrange photos in folders by date
rake ph:rotate   # Rotate photos from exif info
rake ph:list     # Show photos info

Here is a source code: http://gist.github.com/30716

	# Author: Vitalie Lazu
	# Date: Mon, 01 Dec 2008 14:28:28 +0200
	# Rake tasks to help you with family photos:
	# * Download photos from camera
	# * Arrange photos in folders by date like digikam,
	# * Rotate them according exif information
	#
	# Setup to use this tasks:
	# apt-get install rubygems imagemagick gphoto2 rake
	# gem install exifr
	namespace :ph do
	desc "Get photos from camera to current folder"
	task :get do
	sh "gphoto2 -R -P"
	end
	desc "Delete all photos from camera"
	task :delete do
	sh "gphoto2 -R -D"
	end
	desc "Rotate photos from exif info"
	task :rotate => :init do
	for_each_image do |fname, info|
	p info.orientation
	if info.orientation
	x = FakeImg.new
	info.orientation.transform_rmagick(x)
	op = x.to_s
	dest_file = "r-" << fname
	if op.length > 0
	mv fname, dest_file
	cmd = "convert '#{dest_file}' #{op} '#{fname}'"
	puts cmd
	sh cmd
	end
	end
	end
	end
	desc "Arrange photos in folders by date"
	task :arrange => :init do
	for_each_image do |fname, info|
	dir = info.date_time.strftime("%Y-%m-%d")
	op = info.orientation.transform_rmagick(FakeImg.new).to_s
	print "%s %s %s\n" % [fname, dir, op]
	dest_file = File.join(dir, fname)
	mkdir_p dir
	if op.length > 0
	cmd = "convert '#{fname}' #{op} '#{dest_file}'"
	puts cmd
	sh cmd
	else
	if test ?f, dest_file
	puts "File exits: #{dest_file}"
	else
	mv fname, dest_file
	end
	end
	end
	end
	desc "Show photos info"
	task :list => :init do
	for_each_image do |fname, info|
	print "%s %s %s\n" % [fname, info.date_time, info.orientation.transform_rmagick(FakeImg.new).to_s]
	end
	end
	task :init do
	require 'rubygems'
	require 'exifr'
	end
	def for_each_image(&block)
	for fname in Dir["*"]
	next unless test(?f, fname) && fname =~ /\.jpe?g$/i
	yield fname, EXIFR::JPEG.new(fname)
	end
	end
	class FakeImg
	def initialize
	@cmd = []
	end
	def flip
	@cmd << "-flip"
	self
	end
	def flop
	@cmd << "-flop"
	self
	end
	def rotate(degrees)
	@cmd << "-rotate #{degrees.to_i}" if degrees.to_i != 0
	self
	end
	def to_s
	@cmd * ' '
	end
	end
	end

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