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Diffstat (limited to 'googleMock/gtest/scripts/fuse_gtest_files.py')
| -rwxr-xr-x | googleMock/gtest/scripts/fuse_gtest_files.py | 250 |
1 files changed, 250 insertions, 0 deletions
diff --git a/googleMock/gtest/scripts/fuse_gtest_files.py b/googleMock/gtest/scripts/fuse_gtest_files.py new file mode 100755 index 0000000..57ef72f --- /dev/null +++ b/googleMock/gtest/scripts/fuse_gtest_files.py @@ -0,0 +1,250 @@ +#!/usr/bin/env python +# +# Copyright 2009, Google Inc. +# All rights reserved. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# * Redistributions in binary form must reproduce the above +# copyright notice, this list of conditions and the following disclaimer +# in the documentation and/or other materials provided with the +# distribution. +# * Neither the name of Google Inc. nor the names of its +# contributors may be used to endorse or promote products derived from +# this software without specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + +"""fuse_gtest_files.py v0.2.0 +Fuses Google Test source code into a .h file and a .cc file. + +SYNOPSIS + fuse_gtest_files.py [GTEST_ROOT_DIR] OUTPUT_DIR + + Scans GTEST_ROOT_DIR for Google Test source code, and generates + two files: OUTPUT_DIR/gtest/gtest.h and OUTPUT_DIR/gtest/gtest-all.cc. + Then you can build your tests by adding OUTPUT_DIR to the include + search path and linking with OUTPUT_DIR/gtest/gtest-all.cc. These + two files contain everything you need to use Google Test. Hence + you can "install" Google Test by copying them to wherever you want. + + GTEST_ROOT_DIR can be omitted and defaults to the parent + directory of the directory holding this script. + +EXAMPLES + ./fuse_gtest_files.py fused_gtest + ./fuse_gtest_files.py path/to/unpacked/gtest fused_gtest + +This tool is experimental. In particular, it assumes that there is no +conditional inclusion of Google Test headers. Please report any +problems to googletestframework@googlegroups.com. You can read +http://code.google.com/p/googletest/wiki/GoogleTestAdvancedGuide for +more information. +""" + +__author__ = 'wan@google.com (Zhanyong Wan)' + +import os +import re +import sets +import sys + +# We assume that this file is in the scripts/ directory in the Google +# Test root directory. +DEFAULT_GTEST_ROOT_DIR = os.path.join(os.path.dirname(__file__), '..') + +# Regex for matching '#include "gtest/..."'. +INCLUDE_GTEST_FILE_REGEX = re.compile(r'^\s*#\s*include\s*"(gtest/.+)"') + +# Regex for matching '#include "src/..."'. +INCLUDE_SRC_FILE_REGEX = re.compile(r'^\s*#\s*include\s*"(src/.+)"') + +# Where to find the source seed files. +GTEST_H_SEED = 'include/gtest/gtest.h' +GTEST_SPI_H_SEED = 'include/gtest/gtest-spi.h' +GTEST_ALL_CC_SEED = 'src/gtest-all.cc' + +# Where to put the generated files. +GTEST_H_OUTPUT = 'gtest/gtest.h' +GTEST_ALL_CC_OUTPUT = 'gtest/gtest-all.cc' + + +def VerifyFileExists(directory, relative_path): + """Verifies that the given file exists; aborts on failure. + + relative_path is the file path relative to the given directory. + """ + + if not os.path.isfile(os.path.join(directory, relative_path)): + print 'ERROR: Cannot find %s in directory %s.' % (relative_path, + directory) + print ('Please either specify a valid project root directory ' + 'or omit it on the command line.') + sys.exit(1) + + +def ValidateGTestRootDir(gtest_root): + """Makes sure gtest_root points to a valid gtest root directory. + + The function aborts the program on failure. + """ + + VerifyFileExists(gtest_root, GTEST_H_SEED) + VerifyFileExists(gtest_root, GTEST_ALL_CC_SEED) + + +def VerifyOutputFile(output_dir, relative_path): + """Verifies that the given output file path is valid. + + relative_path is relative to the output_dir directory. + """ + + # Makes sure the output file either doesn't exist or can be overwritten. + output_file = os.path.join(output_dir, relative_path) + if os.path.exists(output_file): + # TODO(wan@google.com): The following user-interaction doesn't + # work with automated processes. We should provide a way for the + # Makefile to force overwriting the files. + print ('%s already exists in directory %s - overwrite it? (y/N) ' % + (relative_path, output_dir)) + answer = sys.stdin.readline().strip() + if answer not in ['y', 'Y']: + print 'ABORTED.' + sys.exit(1) + + # Makes sure the directory holding the output file exists; creates + # it and all its ancestors if necessary. + parent_directory = os.path.dirname(output_file) + if not os.path.isdir(parent_directory): + os.makedirs(parent_directory) + + +def ValidateOutputDir(output_dir): + """Makes sure output_dir points to a valid output directory. + + The function aborts the program on failure. + """ + + VerifyOutputFile(output_dir, GTEST_H_OUTPUT) + VerifyOutputFile(output_dir, GTEST_ALL_CC_OUTPUT) + + +def FuseGTestH(gtest_root, output_dir): + """Scans folder gtest_root to generate gtest/gtest.h in output_dir.""" + + output_file = file(os.path.join(output_dir, GTEST_H_OUTPUT), 'w') + processed_files = sets.Set() # Holds all gtest headers we've processed. + + def ProcessFile(gtest_header_path): + """Processes the given gtest header file.""" + + # We don't process the same header twice. + if gtest_header_path in processed_files: + return + + processed_files.add(gtest_header_path) + + # Reads each line in the given gtest header. + for line in file(os.path.join(gtest_root, gtest_header_path), 'r'): + m = INCLUDE_GTEST_FILE_REGEX.match(line) + if m: + # It's '#include "gtest/..."' - let's process it recursively. + ProcessFile('include/' + m.group(1)) + else: + # Otherwise we copy the line unchanged to the output file. + output_file.write(line) + + ProcessFile(GTEST_H_SEED) + output_file.close() + + +def FuseGTestAllCcToFile(gtest_root, output_file): + """Scans folder gtest_root to generate gtest/gtest-all.cc in output_file.""" + + processed_files = sets.Set() + + def ProcessFile(gtest_source_file): + """Processes the given gtest source file.""" + + # We don't process the same #included file twice. + if gtest_source_file in processed_files: + return + + processed_files.add(gtest_source_file) + + # Reads each line in the given gtest source file. + for line in file(os.path.join(gtest_root, gtest_source_file), 'r'): + m = INCLUDE_GTEST_FILE_REGEX.match(line) + if m: + if 'include/' + m.group(1) == GTEST_SPI_H_SEED: + # It's '#include "gtest/gtest-spi.h"'. This file is not + # #included by "gtest/gtest.h", so we need to process it. + ProcessFile(GTEST_SPI_H_SEED) + else: + # It's '#include "gtest/foo.h"' where foo is not gtest-spi. + # We treat it as '#include "gtest/gtest.h"', as all other + # gtest headers are being fused into gtest.h and cannot be + # #included directly. + + # There is no need to #include "gtest/gtest.h" more than once. + if not GTEST_H_SEED in processed_files: + processed_files.add(GTEST_H_SEED) + output_file.write('#include "%s"\n' % (GTEST_H_OUTPUT,)) + else: + m = INCLUDE_SRC_FILE_REGEX.match(line) + if m: + # It's '#include "src/foo"' - let's process it recursively. + ProcessFile(m.group(1)) + else: + output_file.write(line) + + ProcessFile(GTEST_ALL_CC_SEED) + + +def FuseGTestAllCc(gtest_root, output_dir): + """Scans folder gtest_root to generate gtest/gtest-all.cc in output_dir.""" + + output_file = file(os.path.join(output_dir, GTEST_ALL_CC_OUTPUT), 'w') + FuseGTestAllCcToFile(gtest_root, output_file) + output_file.close() + + +def FuseGTest(gtest_root, output_dir): + """Fuses gtest.h and gtest-all.cc.""" + + ValidateGTestRootDir(gtest_root) + ValidateOutputDir(output_dir) + + FuseGTestH(gtest_root, output_dir) + FuseGTestAllCc(gtest_root, output_dir) + + +def main(): + argc = len(sys.argv) + if argc == 2: + # fuse_gtest_files.py OUTPUT_DIR + FuseGTest(DEFAULT_GTEST_ROOT_DIR, sys.argv[1]) + elif argc == 3: + # fuse_gtest_files.py GTEST_ROOT_DIR OUTPUT_DIR + FuseGTest(sys.argv[1], sys.argv[2]) + else: + print __doc__ + sys.exit(1) + + +if __name__ == '__main__': + main() |