David Klempner | f94838b | 2015-02-02 16:56:46 -0800 | [diff] [blame] | 1 | #!/usr/bin/python2.7 |
Craig Tiller | c2c7921 | 2015-02-16 12:00:01 -0800 | [diff] [blame^] | 2 | # Copyright 2015, Google Inc. |
| 3 | # All rights reserved. |
| 4 | # |
| 5 | # Redistribution and use in source and binary forms, with or without |
| 6 | # modification, are permitted provided that the following conditions are |
| 7 | # met: |
| 8 | # |
| 9 | # * Redistributions of source code must retain the above copyright |
| 10 | # notice, this list of conditions and the following disclaimer. |
| 11 | # * Redistributions in binary form must reproduce the above |
| 12 | # copyright notice, this list of conditions and the following disclaimer |
| 13 | # in the documentation and/or other materials provided with the |
| 14 | # distribution. |
| 15 | # * Neither the name of Google Inc. nor the names of its |
| 16 | # contributors may be used to endorse or promote products derived from |
| 17 | # this software without specific prior written permission. |
| 18 | # |
| 19 | # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| 20 | # "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| 21 | # LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| 22 | # A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| 23 | # OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| 24 | # SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| 25 | # LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| 26 | # DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| 27 | # THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| 28 | # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| 29 | # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 30 | |
Nicolas Noble | ddef246 | 2015-01-06 18:08:25 -0800 | [diff] [blame] | 31 | |
| 32 | """Simple Mako renderer. |
| 33 | |
| 34 | Just a wrapper around the mako rendering library. |
| 35 | |
| 36 | """ |
| 37 | |
| 38 | import getopt |
| 39 | import imp |
| 40 | import os |
| 41 | import sys |
| 42 | |
| 43 | |
| 44 | from mako.lookup import TemplateLookup |
| 45 | from mako.runtime import Context |
| 46 | from mako.template import Template |
| 47 | import simplejson |
| 48 | import bunch |
| 49 | |
| 50 | |
| 51 | # Imports a plugin |
| 52 | def import_plugin(name): |
| 53 | _, base_ex = os.path.split(name) |
| 54 | base, _ = os.path.splitext(base_ex) |
| 55 | |
| 56 | with open(name, 'r') as plugin_file: |
| 57 | plugin_code = plugin_file.read() |
| 58 | plugin_module = imp.new_module(base) |
| 59 | exec plugin_code in plugin_module.__dict__ |
| 60 | return plugin_module |
| 61 | |
| 62 | |
| 63 | def out(msg): |
| 64 | print >> sys.stderr, msg |
| 65 | |
| 66 | |
| 67 | def showhelp(): |
| 68 | out('mako-renderer.py [-o out] [-m cache] [-d dict] [-d dict...] template') |
| 69 | |
| 70 | |
| 71 | def main(argv): |
| 72 | got_input = False |
| 73 | module_directory = None |
| 74 | dictionary = {} |
| 75 | json_dict = {} |
| 76 | got_output = False |
| 77 | output_file = sys.stdout |
| 78 | plugins = [] |
| 79 | |
| 80 | try: |
| 81 | opts, args = getopt.getopt(argv, 'hm:d:o:p:') |
| 82 | except getopt.GetoptError: |
| 83 | out('Unknown option') |
| 84 | showhelp() |
| 85 | sys.exit(2) |
| 86 | |
| 87 | for opt, arg in opts: |
| 88 | if opt == '-h': |
| 89 | out('Displaying showhelp') |
| 90 | showhelp() |
| 91 | sys.exit() |
| 92 | elif opt == '-o': |
| 93 | if got_output: |
| 94 | out('Got more than one output') |
| 95 | showhelp() |
| 96 | sys.exit(3) |
| 97 | got_output = True |
| 98 | output_file = open(arg, 'w') |
| 99 | elif opt == '-m': |
| 100 | if module_directory is not None: |
| 101 | out('Got more than one cache directory') |
| 102 | showhelp() |
| 103 | sys.exit(4) |
| 104 | module_directory = arg |
| 105 | elif opt == '-d': |
| 106 | dict_file = open(arg, 'r') |
| 107 | bunch.merge_json(json_dict, simplejson.loads(dict_file.read())) |
| 108 | dict_file.close() |
| 109 | elif opt == '-p': |
| 110 | plugins.append(import_plugin(arg)) |
| 111 | |
| 112 | for plugin in plugins: |
| 113 | plugin.mako_plugin(json_dict) |
| 114 | |
| 115 | for k, v in json_dict.items(): |
| 116 | dictionary[k] = bunch.to_bunch(v) |
| 117 | |
| 118 | ctx = Context(output_file, **dictionary) |
| 119 | |
| 120 | for arg in args: |
| 121 | got_input = True |
| 122 | template = Template(filename=arg, |
| 123 | module_directory=module_directory, |
| 124 | lookup=TemplateLookup(directories=['.'])) |
| 125 | template.render_context(ctx) |
| 126 | |
| 127 | if not got_input: |
| 128 | out('Got nothing to do') |
| 129 | showhelp() |
| 130 | |
| 131 | output_file.close() |
| 132 | |
| 133 | if __name__ == '__main__': |
| 134 | main(sys.argv[1:]) |