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Diffstat (limited to 'deps/gyp/pylib/gyp/generator/gypd.py')
-rw-r--r-- | deps/gyp/pylib/gyp/generator/gypd.py | 87 |
1 files changed, 87 insertions, 0 deletions
diff --git a/deps/gyp/pylib/gyp/generator/gypd.py b/deps/gyp/pylib/gyp/generator/gypd.py new file mode 100644 index 0000000000..22ef57f847 --- /dev/null +++ b/deps/gyp/pylib/gyp/generator/gypd.py @@ -0,0 +1,87 @@ +# Copyright (c) 2011 Google Inc. All rights reserved. +# Use of this source code is governed by a BSD-style license that can be +# found in the LICENSE file. + +"""gypd output module + +This module produces gyp input as its output. Output files are given the +.gypd extension to avoid overwriting the .gyp files that they are generated +from. Internal references to .gyp files (such as those found in +"dependencies" sections) are not adjusted to point to .gypd files instead; +unlike other paths, which are relative to the .gyp or .gypd file, such paths +are relative to the directory from which gyp was run to create the .gypd file. + +This generator module is intended to be a sample and a debugging aid, hence +the "d" for "debug" in .gypd. It is useful to inspect the results of the +various merges, expansions, and conditional evaluations performed by gyp +and to see a representation of what would be fed to a generator module. + +It's not advisable to rename .gypd files produced by this module to .gyp, +because they will have all merges, expansions, and evaluations already +performed and the relevant constructs not present in the output; paths to +dependencies may be wrong; and various sections that do not belong in .gyp +files such as such as "included_files" and "*_excluded" will be present. +Output will also be stripped of comments. This is not intended to be a +general-purpose gyp pretty-printer; for that, you probably just want to +run "pprint.pprint(eval(open('source.gyp').read()))", which will still strip +comments but won't do all of the other things done to this module's output. + +The specific formatting of the output generated by this module is subject +to change. +""" + + +import gyp.common +import errno +import os +import pprint + + +# These variables should just be spit back out as variable references. +_generator_identity_variables = [ + 'EXECUTABLE_PREFIX', + 'EXECUTABLE_SUFFIX', + 'INTERMEDIATE_DIR', + 'PRODUCT_DIR', + 'RULE_INPUT_ROOT', + 'RULE_INPUT_DIRNAME', + 'RULE_INPUT_EXT', + 'RULE_INPUT_NAME', + 'RULE_INPUT_PATH', + 'SHARED_INTERMEDIATE_DIR', +] + +# gypd doesn't define a default value for OS like many other generator +# modules. Specify "-D OS=whatever" on the command line to provide a value. +generator_default_variables = { +} + +# gypd supports multiple toolsets +generator_supports_multiple_toolsets = True + +# TODO(mark): This always uses <, which isn't right. The input module should +# notify the generator to tell it which phase it is operating in, and this +# module should use < for the early phase and then switch to > for the late +# phase. Bonus points for carrying @ back into the output too. +for v in _generator_identity_variables: + generator_default_variables[v] = '<(%s)' % v + + +def GenerateOutput(target_list, target_dicts, data, params): + output_files = {} + for qualified_target in target_list: + [input_file, target] = \ + gyp.common.ParseQualifiedTarget(qualified_target)[0:2] + + if input_file[-4:] != '.gyp': + continue + input_file_stem = input_file[:-4] + output_file = input_file_stem + params['options'].suffix + '.gypd' + + if not output_file in output_files: + output_files[output_file] = input_file + + for output_file, input_file in output_files.iteritems(): + output = open(output_file, 'w') + pprint.pprint(data[input_file], output) + output.close() |