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@@ -1,3 +1,37 @@
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 #!/usr/bin/env ruby -w
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+require File.dirname(__FILE__) + '/../lib/git-trip'
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-puts 'Coming soon...'
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+require 'optparse'
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+
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+options = { :dir => '.' }
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+
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+opts = OptionParser.new do |opt|
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+  opt.banner = "Usage: git-trip [options]"
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+
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+  opt.separator 'Required (only use one):'
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+  opt.on('-g', '--github TAG', 'Create an image from a Github tag (ex. Oshuma/git-trip).') do |g|
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+    options[:github] = g
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+  end
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+  opt.on('-d', '--dir DIR', 'Create an image from a local git repository.') do |d|
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+    options[:dir] = d
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+  end
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+  opt.on('-u', '--uri URI', 'Create an image from a URI (currently expects JSON).') do |u|
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+    options[:uri] = u
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+  end
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+
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+  opt.separator ''
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+  opt.separator 'Optional:'
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+
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+  opt.on('-r', '--render [MODE]', [:blend, :pixel, :radial],
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+         'Run the image through the given PaintMode.') do |r|
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+    options[:mode] = r
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+  end
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+
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+  opt.on_tail('-h', '--help', 'Show this help text.') do
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+    puts opt; exit
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+  end
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+  opt.on_tail('--version', 'Show GitTrip version.') do
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+    puts "GitTrip v#{GitTrip::VERSION}"
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+  end
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+end
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+opts.parse!(ARGV)