gistfile1.rb

#!/usr/bin/ruby

# tweet is a script that allows you to update 
# your twitter status using shell
# written by Tomasz 'pewniak747' Pewiński
# pewniak747@gmail.com

def exp_value input
	input[input.index("=")+1, input.size].strip
end

# set defaults
options = {}
options[:user] = 'twitt'
options[:password] = 'twitt'
message = String.new

#read from .tweetrc
if !File.exists?("#{ENV['HOME']}/.tweetrc")
	rcfile = File.open("#{ENV['HOME']}/.tweetrc", "w")
	puts "This the first time you run tweet script."
	puts "Please provide your twittername and password."
	puts "Can be changed later in #{ENV['HOME']}/.tweetrc"
	print "[username:] "
	rcfile << "user="+STDIN.gets
	print "[password:] "
	rcfile << "password="+STDIN.gets
	rcfile.close
end

rcfile = File.open("#{ENV['HOME']}/.tweetrc")

rcfile.each do |line|
	case line
		when /^user/
			options[:user] = exp_value line
		when /^password/
			options[:password] = exp_value line
		end
end

rcfile.close

#parse arguments
ARGV.each_index do |idx|
	case ARGV[idx]
		when "-h", "--help"
			options[:help] = true;
		when /^--user=/
			options[:user] = exp_value ARGV[idx]
			puts options[:user]
		when /^--password=/
			options[:password] = exp_value ARGV[idx]
		else
			if idx != ARGV.size-1
				puts "wrong argument #{ARGV[idx]}"
				puts "see tweet --help for available options"
				Process.exit
			else
				message = ARGV.last
			end
	end
end

# outputs help
if options[:help]
	puts "Tweet - send twitter status update from shell!"
	puts "Usage: tweet [OPTIONS] \"Tweeting from bash:)\""
	puts "Available options:"
	puts "  --user=name	set user to name"
	puts "  --password=pass	set password to pass"
	puts "  -h, --help	display this message"
	Process.exit
end

# validation
errors = false
if message.nil?
	puts "No message specified."
	errors = true
elsif message.size > 140
	puts "Tweet size is over 140 characters."
	errors = true
elsif message.size < 1
	puts "Tweet not specified."
	errors = true
end

Process.exit if errors
system("curl --basic --show-error --stderr - --user #{options[:user]}:#{options[:password]} --data status=\"#{message}\" http://twitter.com/statuses/update.xml > $HOME/.tweetlog")