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