[CHANGED] added injection script and pretty printing.

inject.rb

@@ -0,0 +1,62 @@
+#!/usr/bin/env ruby
+
+require 'rubygems'
+require 'json'
+require 'fileutils'
+
+def inject
+  FileUtils.cp_r(mojo_ext_path, target_mojo_ext_path)
+
+  mojo_ext_source_dict = {'source' => 'mojo-ext/ext.js'}
+  unless sources.first == mojo_ext_source_dict
+    sources.unshift(mojo_ext_source_dict)
+    save_sources!
+  end
+end
+
+def extended?
+  File.exists?(File.join(project_path, 'mojo-ext'))
+end
+
+def sources
+  $sources ||= JSON.parse(File.read(sources_file))
+end
+
+def sources_file
+  File.join(project_path, 'sources.json')
+end
+
+def save_sources!
+  FileUtils.mv(sources_file, File.join(project_path, 'sources.json-backup'))
+  File.open(sources_file, 'w') {|f| f.puts(sources.to_json)}
+  `./prettyprint.py "#{sources_file}" "#{sources_file}"`
+end
+
+def project_path
+  ARGV.first || Dir.pwd
+end
+
+def main
+  unless File.exists?(sources_file)
+    raise "no Mojo project found at #{project_path}"
+  end
+  
+  if extended?
+    puts "project already contains Mojo.Ext, bailing"
+  else
+    inject
+    puts "injected Mojo.Ext"
+  end
+end
+
+def mojo_ext_path
+  File.expand_path(File.join('..', 'src'), __FILE__)
+end
+
+def target_mojo_ext_path
+  File.join(project_path, 'mojo-ext')
+end
+
+if $0 == __FILE__
+  main
+end

prettyprint.py

@@ -0,0 +1,36 @@
+#!/usr/bin/env python
+
+"""
+Convert JSON data to human-readable form.
+
+Usage:
+  prettyJSON.py inputFile [outputFile]
+"""
+
+import sys
+import simplejson as json
+
+
+def main(args):
+    try:
+        inputFile = open(args[1])
+        input = json.load(inputFile)
+        inputFile.close()
+    except IndexError:
+        usage()
+        return False
+    if len(args) < 3:
+        print json.dumps(input, sort_keys = False, indent = 4)
+    else:
+        outputFile = open(args[2], "w")
+        json.dump(input, outputFile, sort_keys = False, indent = 4)
+        outputFile.close()
+    return True
+
+
+def usage():
+    print __doc__
+
+
+if __name__ == "__main__":
+    sys.exit(not main(sys.argv))