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generate_ppapi_include_tests.py
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#!/usr/bin/python
# Copyright (c) 2010 The Chromium Authors. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
# This script should be run manually on occasion to make sure the gyp file and
# the includes tests are up to date.
# It does the following:
# - Verifies that all source code is in ppapi.gyp
# - Verifies that all sources in ppapi.gyp really do exist
# - Generates tests/test_c_includes.c
# - Generates tests/test_cpp_includes.cc
# These tests are checked in to SVN.
# TODO(dmichael): Make this script execute as a gyp action, move the include
# tests to some 'generated' area, and remove them from version
# control.
import re
import os
import sys
import posixpath
# A simple regular expression that should match source files for C++ and C.
SOURCE_FILE_RE = re.compile('.+\.(cc|c|h)$')
# IGNORE_RE is a regular expression that matches directories which contain
# source that we don't (currently) expect to be in ppapi.gyp. This script will
# not check whether source files under these directories are in the gyp file.
# TODO(dmichael): Put examples back in the build.
# TODO(brettw): Put proxy in the build when it's ready.
IGNORE_RE = re.compile('^(examples|GLES2|proxy|tests\/clang).*')
GYP_TARGETS_KEY = 'targets'
GYP_SOURCES_KEY = 'sources'
GYP_TARGET_NAME_KEY = 'target_name'
# Return a set containing all source files found given an object read from a gyp
# file.
def GetAllGypSources(gyp_file_data):
sources = set([])
for target in gyp_file_data[GYP_TARGETS_KEY]:
# Get a list of sources in the target that are not ignored, and 'normalize'
# them. The main reason for this is to turn the forward slashes in the gyp
# file in to backslashes when the script is run on Windows.
source_list = [posixpath.normpath(src) for src in target[GYP_SOURCES_KEY]
if not IGNORE_RE.match(src)]
sources |= set(source_list)
return sources
# Search the directory named start_root and all its subdirectories for source
# files.
# Return a set containing the string names of all the source files found,
# relative to start_root.
def GetFileSources(start_root):
file_set = set([])
for root, dirs, files in os.walk(start_root):
relative_root = os.path.relpath(root, start_root)
if not IGNORE_RE.match(relative_root):
for source in files:
if SOURCE_FILE_RE.match(source):
file_set |= set([os.path.join(relative_root, source)])
return file_set
# Make sure all source files are in the given gyp object (evaluated from a gyp
# file), and that all source files listed in the gyp object exist in the
# directory.
def VerifyGypFile(gyp_file_data):
gyp_sources = GetAllGypSources(gyp_file_data)
file_sources = GetFileSources('.')
in_gyp_not_file = gyp_sources - file_sources
in_file_not_gyp = file_sources - gyp_sources
if len(in_gyp_not_file):
print 'Found source file(s) in ppapi.gyp but not in the directory:', \
in_gyp_not_file
if len(in_file_not_gyp):
print 'Found source file(s) in the directory but not in ppapi.gyp:', \
in_file_not_gyp
error_count = len(in_gyp_not_file) + len(in_file_not_gyp)
if error_count:
sys.exit(error_count)
def WriteLines(filename, lines):
outfile = open(filename, 'w')
for line in lines:
outfile.write(line)
outfile.write('\n')
COPYRIGHT_STRING_C = \
"""/* Copyright (c) 2010 The Chromium Authors. All rights reserved.
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*
* This test simply includes all the C headers to ensure they compile with a C
* compiler. If it compiles, it passes.
*/
"""
COPYRIGHT_STRING_CC = \
"""// Copyright (c) 2010 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
//
// This test simply includes all the C++ headers to ensure they compile with a
// C++ compiler. If it compiles, it passes.
//
"""
# Get the source file names out of the given gyp file data object (as evaluated
# from a gyp file) for the given target name. Return the string names in
# sorted order.
def GetSourcesForTarget(target_name, gyp_file_data):
for target in gyp_file_data[GYP_TARGETS_KEY]:
if target[GYP_TARGET_NAME_KEY] == target_name:
sources = target[GYP_SOURCES_KEY]
sources.sort()
return sources
print 'Warning: no target named ', target, ' found.'
return []
# Generate all_c_includes.h, which includes all C headers. This is part of
# tests/test_c_sizes.c, which includes all C API files to ensure that all
# the headers in ppapi/c can be compiled with a C compiler, and also asserts
# (with compile-time assertions) that all structs and enums are a particular
# size.
def GenerateCIncludeTest(gyp_file_data):
c_sources = GetSourcesForTarget('ppapi_c', gyp_file_data)
lines = [COPYRIGHT_STRING_C]
lines.append('#ifndef PPAPI_TESTS_ALL_C_INCLUDES_H_\n')
lines.append('#define PPAPI_TESTS_ALL_C_INCLUDES_H_\n\n')
for source in c_sources:
lines.append('#include "ppapi/' + source + '"\n')
lines.append('\n#endif /* PPAPI_TESTS_ALL_C_INCLUDES_H_ */\n')
WriteLines('tests/all_c_includes.h', lines)
# Generate all_cpp_includes.h, which is used by test_cpp_includes.cc to ensure
# that all the headers in ppapi/cpp can be compiled with a C++ compiler.
def GenerateCCIncludeTest(gyp_file_data):
cc_sources = GetSourcesForTarget('ppapi_cpp_objects', gyp_file_data)
header_re = re.compile('.+\.h$')
lines = [COPYRIGHT_STRING_CC]
lines.append('#ifndef PPAPI_TESTS_ALL_CPP_INCLUDES_H_\n')
lines.append('#define PPAPI_TESTS_ALL_CPP_INCLUDES_H_\n\n')
for source in cc_sources:
if header_re.match(source):
lines.append('#include "ppapi/' + source + '"\n')
lines.append('\n#endif // PPAPI_TESTS_ALL_CPP_INCLUDES_H_\n')
WriteLines('tests/all_cpp_includes.h', lines)
def main():
ppapi_gyp_file_name = 'ppapi.gyp'
gyp_file_contents = open(ppapi_gyp_file_name).read()
gyp_file_data = eval(gyp_file_contents)
VerifyGypFile(gyp_file_data)
GenerateCIncludeTest(gyp_file_data)
GenerateCCIncludeTest(gyp_file_data)
return 0
if __name__ == '__main__':
sys.exit(main())