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