ceph/src/s3select/rapidjson/thirdparty/gtest/googletest/scripts/fuse_gtest_files.py

   1 #!/usr/bin/env python
   2 #
   3 # Copyright 2009, Google Inc.
   4 # All rights reserved.
   5 #
   6 # Redistribution and use in source and binary forms, with or without
   7 # modification, are permitted provided that the following conditions are
   8 # met:
   9 #
  10 #     * Redistributions of source code must retain the above copyright
  11 # notice, this list of conditions and the following disclaimer.
  12 #     * Redistributions in binary form must reproduce the above
  13 # copyright notice, this list of conditions and the following disclaimer
  14 # in the documentation and/or other materials provided with the
  15 # distribution.
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  17 # contributors may be used to endorse or promote products derived from
  18 # this software without specific prior written permission.
  19 #
  20 # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  21 # "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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  23 # A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  24 # OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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  29 # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  30 # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  31
  32 """fuse_gtest_files.py v0.2.0
  33 Fuses Google Test source code into a .h file and a .cc file.
  34
  35 SYNOPSIS
  36        fuse_gtest_files.py [GTEST_ROOT_DIR] OUTPUT_DIR
  37
  38        Scans GTEST_ROOT_DIR for Google Test source code, and generates
  39        two files: OUTPUT_DIR/gtest/gtest.h and OUTPUT_DIR/gtest/gtest-all.cc.
  40        Then you can build your tests by adding OUTPUT_DIR to the include
  41        search path and linking with OUTPUT_DIR/gtest/gtest-all.cc.  These
  42        two files contain everything you need to use Google Test.  Hence
  43        you can "install" Google Test by copying them to wherever you want.
  44
  45        GTEST_ROOT_DIR can be omitted and defaults to the parent
  46        directory of the directory holding this script.
  47
  48 EXAMPLES
  49        ./fuse_gtest_files.py fused_gtest
  50        ./fuse_gtest_files.py path/to/unpacked/gtest fused_gtest
  51
  52 This tool is experimental.  In particular, it assumes that there is no
  53 conditional inclusion of Google Test headers.  Please report any
  54 problems to googletestframework@googlegroups.com.  You can read
  55 https://github.com/google/googletest/blob/master/googletest/docs/advanced.md for
  56 more information.
  57 """
  58
  59 __author__ = 'wan@google.com (Zhanyong Wan)'
  60
  61 import os
  62 import re
  63 try:
  64   from sets import Set as set  # For Python 2.3 compatibility
  65 except ImportError:
  66   pass
  67 import sys
  68
  69 # We assume that this file is in the scripts/ directory in the Google
  70 # Test root directory.
  71 DEFAULT_GTEST_ROOT_DIR = os.path.join(os.path.dirname(__file__), '..')
  72
  73 # Regex for matching '#include "gtest/..."'.
  74 INCLUDE_GTEST_FILE_REGEX = re.compile(r'^\s*#\s*include\s*"(gtest/.+)"')
  75
  76 # Regex for matching '#include "src/..."'.
  77 INCLUDE_SRC_FILE_REGEX = re.compile(r'^\s*#\s*include\s*"(src/.+)"')
  78
  79 # Where to find the source seed files.
  80 GTEST_H_SEED = 'include/gtest/gtest.h'
  81 GTEST_SPI_H_SEED = 'include/gtest/gtest-spi.h'
  82 GTEST_ALL_CC_SEED = 'src/gtest-all.cc'
  83
  84 # Where to put the generated files.
  85 GTEST_H_OUTPUT = 'gtest/gtest.h'
  86 GTEST_ALL_CC_OUTPUT = 'gtest/gtest-all.cc'
  87
  88
  89 def VerifyFileExists(directory, relative_path):
  90   """Verifies that the given file exists; aborts on failure.
  91
  92   relative_path is the file path relative to the given directory.
  93   """
  94
  95   if not os.path.isfile(os.path.join(directory, relative_path)):
  96     print('ERROR: Cannot find %s in directory %s.' % (relative_path,
  97                                                       directory))
  98     print('Please either specify a valid project root directory '
  99           'or omit it on the command line.')
 100     sys.exit(1)
 101
 102
 103 def ValidateGTestRootDir(gtest_root):
 104   """Makes sure gtest_root points to a valid gtest root directory.
 105
 106   The function aborts the program on failure.
 107   """
 108
 109   VerifyFileExists(gtest_root, GTEST_H_SEED)
 110   VerifyFileExists(gtest_root, GTEST_ALL_CC_SEED)
 111
 112
 113 def VerifyOutputFile(output_dir, relative_path):
 114   """Verifies that the given output file path is valid.
 115
 116   relative_path is relative to the output_dir directory.
 117   """
 118
 119   # Makes sure the output file either doesn't exist or can be overwritten.
 120   output_file = os.path.join(output_dir, relative_path)
 121   if os.path.exists(output_file):
 122     # TODO(wan@google.com): The following user-interaction doesn't
 123     # work with automated processes.  We should provide a way for the
 124     # Makefile to force overwriting the files.
 125     print('%s already exists in directory %s - overwrite it? (y/N) ' %
 126           (relative_path, output_dir))
 127     answer = sys.stdin.readline().strip()
 128     if answer not in ['y', 'Y']:
 129       print('ABORTED.')
 130       sys.exit(1)
 131
 132   # Makes sure the directory holding the output file exists; creates
 133   # it and all its ancestors if necessary.
 134   parent_directory = os.path.dirname(output_file)
 135   if not os.path.isdir(parent_directory):
 136     os.makedirs(parent_directory)
 137
 138
 139 def ValidateOutputDir(output_dir):
 140   """Makes sure output_dir points to a valid output directory.
 141
 142   The function aborts the program on failure.
 143   """
 144
 145   VerifyOutputFile(output_dir, GTEST_H_OUTPUT)
 146   VerifyOutputFile(output_dir, GTEST_ALL_CC_OUTPUT)
 147
 148
 149 def FuseGTestH(gtest_root, output_dir):
 150   """Scans folder gtest_root to generate gtest/gtest.h in output_dir."""
 151
 152   output_file = open(os.path.join(output_dir, GTEST_H_OUTPUT), 'w')
 153   processed_files = set()  # Holds all gtest headers we've processed.
 154
 155   def ProcessFile(gtest_header_path):
 156     """Processes the given gtest header file."""
 157
 158     # We don't process the same header twice.
 159     if gtest_header_path in processed_files:
 160       return
 161
 162     processed_files.add(gtest_header_path)
 163
 164     # Reads each line in the given gtest header.
 165     for line in open(os.path.join(gtest_root, gtest_header_path), 'r'):
 166       m = INCLUDE_GTEST_FILE_REGEX.match(line)
 167       if m:
 168         # It's '#include "gtest/..."' - let's process it recursively.
 169         ProcessFile('include/' + m.group(1))
 170       else:
 171         # Otherwise we copy the line unchanged to the output file.
 172         output_file.write(line)
 173
 174   ProcessFile(GTEST_H_SEED)
 175   output_file.close()
 176
 177
 178 def FuseGTestAllCcToFile(gtest_root, output_file):
 179   """Scans folder gtest_root to generate gtest/gtest-all.cc in output_file."""
 180
 181   processed_files = set()
 182
 183   def ProcessFile(gtest_source_file):
 184     """Processes the given gtest source file."""
 185
 186     # We don't process the same #included file twice.
 187     if gtest_source_file in processed_files:
 188       return
 189
 190     processed_files.add(gtest_source_file)
 191
 192     # Reads each line in the given gtest source file.
 193     for line in open(os.path.join(gtest_root, gtest_source_file), 'r'):
 194       m = INCLUDE_GTEST_FILE_REGEX.match(line)
 195       if m:
 196         if 'include/' + m.group(1) == GTEST_SPI_H_SEED:
 197           # It's '#include "gtest/gtest-spi.h"'.  This file is not
 198           # #included by "gtest/gtest.h", so we need to process it.
 199           ProcessFile(GTEST_SPI_H_SEED)
 200         else:
 201           # It's '#include "gtest/foo.h"' where foo is not gtest-spi.
 202           # We treat it as '#include "gtest/gtest.h"', as all other
 203           # gtest headers are being fused into gtest.h and cannot be
 204           # #included directly.
 205
 206           # There is no need to #include "gtest/gtest.h" more than once.
 207           if not GTEST_H_SEED in processed_files:
 208             processed_files.add(GTEST_H_SEED)
 209             output_file.write('#include "%s"\n' % (GTEST_H_OUTPUT,))
 210       else:
 211         m = INCLUDE_SRC_FILE_REGEX.match(line)
 212         if m:
 213           # It's '#include "src/foo"' - let's process it recursively.
 214           ProcessFile(m.group(1))
 215         else:
 216           output_file.write(line)
 217
 218   ProcessFile(GTEST_ALL_CC_SEED)
 219
 220
 221 def FuseGTestAllCc(gtest_root, output_dir):
 222   """Scans folder gtest_root to generate gtest/gtest-all.cc in output_dir."""
 223
 224   output_file = open(os.path.join(output_dir, GTEST_ALL_CC_OUTPUT), 'w')
 225   FuseGTestAllCcToFile(gtest_root, output_file)
 226   output_file.close()
 227
 228
 229 def FuseGTest(gtest_root, output_dir):
 230   """Fuses gtest.h and gtest-all.cc."""
 231
 232   ValidateGTestRootDir(gtest_root)
 233   ValidateOutputDir(output_dir)
 234
 235   FuseGTestH(gtest_root, output_dir)
 236   FuseGTestAllCc(gtest_root, output_dir)
 237
 238
 239 def main():
 240   argc = len(sys.argv)
 241   if argc == 2:
 242     # fuse_gtest_files.py OUTPUT_DIR
 243     FuseGTest(DEFAULT_GTEST_ROOT_DIR, sys.argv[1])
 244   elif argc == 3:
 245     # fuse_gtest_files.py GTEST_ROOT_DIR OUTPUT_DIR
 246     FuseGTest(sys.argv[1], sys.argv[2])
 247   else:
 248     print(__doc__)
 249     sys.exit(1)
 250
 251
 252 if __name__ == '__main__':
 253   main()