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31 """fuse_gmock_files.py v0.1.0.
33 Fuses Google Mock and Google Test source code into two .h files and a .cc file.
36 fuse_gmock_files.py [GMOCK_ROOT_DIR] OUTPUT_DIR
38 Scans GMOCK_ROOT_DIR for Google Mock and Google Test source
39 code, assuming Google Test is in the GMOCK_ROOT_DIR/../googletest
40 directory, and generates three files:
41 OUTPUT_DIR/gtest/gtest.h, OUTPUT_DIR/gmock/gmock.h, and
42 OUTPUT_DIR/gmock-gtest-all.cc. Then you can build your tests
43 by adding OUTPUT_DIR to the include search path and linking
44 with OUTPUT_DIR/gmock-gtest-all.cc. These three files contain
45 everything you need to use Google Mock. Hence you can
46 "install" Google Mock by copying them to wherever you want.
48 GMOCK_ROOT_DIR can be omitted and defaults to the parent
49 directory of the directory holding this script.
52 ./fuse_gmock_files.py fused_gmock
53 ./fuse_gmock_files.py path/to/unpacked/gmock fused_gmock
55 This tool is experimental. In particular, it assumes that there is no
56 conditional inclusion of Google Mock or Google Test headers. Please
57 report any problems to googlemock@googlegroups.com. You can read
58 https://github.com/google/googletest/blob/master/docs/gmock_cook_book.md
63 from __future__ import print_function
69 __author__ = 'wan@google.com (Zhanyong Wan)'
71 # We assume that this file is in the scripts/ directory in the Google
72 # Mock root directory.
73 DEFAULT_GMOCK_ROOT_DIR = os.path.join(os.path.dirname(__file__), '..')
75 # We need to call into googletest/scripts/fuse_gtest_files.py.
76 sys.path.append(os.path.join(DEFAULT_GMOCK_ROOT_DIR, '../googletest/scripts'))
77 import fuse_gtest_files as gtest # pylint:disable=g-import-not-at-top
80 # '#include "gmock/..."'.
81 INCLUDE_GMOCK_FILE_REGEX = re.compile(r'^\s*#\s*include\s*"(gmock/.+)"')
83 # Where to find the source seed files.
84 GMOCK_H_SEED = 'include/gmock/gmock.h'
85 GMOCK_ALL_CC_SEED = 'src/gmock-all.cc'
87 # Where to put the generated files.
88 GTEST_H_OUTPUT = 'gtest/gtest.h'
89 GMOCK_H_OUTPUT = 'gmock/gmock.h'
90 GMOCK_GTEST_ALL_CC_OUTPUT = 'gmock-gtest-all.cc'
93 def GetGTestRootDir(gmock_root):
94 """Returns the root directory of Google Test."""
96 return os.path.join(gmock_root, '../googletest')
99 def ValidateGMockRootDir(gmock_root):
100 """Makes sure gmock_root points to a valid gmock root directory.
102 The function aborts the program on failure.
105 gmock_root: A string with the mock root directory.
108 gtest.ValidateGTestRootDir(GetGTestRootDir(gmock_root))
109 gtest.VerifyFileExists(gmock_root, GMOCK_H_SEED)
110 gtest.VerifyFileExists(gmock_root, GMOCK_ALL_CC_SEED)
113 def ValidateOutputDir(output_dir):
114 """Makes sure output_dir points to a valid output directory.
116 The function aborts the program on failure.
119 output_dir: A string representing the output directory.
122 gtest.VerifyOutputFile(output_dir, gtest.GTEST_H_OUTPUT)
123 gtest.VerifyOutputFile(output_dir, GMOCK_H_OUTPUT)
124 gtest.VerifyOutputFile(output_dir, GMOCK_GTEST_ALL_CC_OUTPUT)
127 def FuseGMockH(gmock_root, output_dir):
128 """Scans folder gmock_root to generate gmock/gmock.h in output_dir."""
130 output_file = open(os.path.join(output_dir, GMOCK_H_OUTPUT), 'w')
131 processed_files = set() # Holds all gmock headers we've processed.
133 def ProcessFile(gmock_header_path):
134 """Processes the given gmock header file."""
136 # We don't process the same header twice.
137 if gmock_header_path in processed_files:
140 processed_files.add(gmock_header_path)
142 # Reads each line in the given gmock header.
144 with open(os.path.join(gmock_root, gmock_header_path), 'r') as fh:
146 m = INCLUDE_GMOCK_FILE_REGEX.match(line)
148 # '#include "gmock/..."'
149 # - let's process it recursively.
150 ProcessFile('include/' + m.group(1))
152 m = gtest.INCLUDE_GTEST_FILE_REGEX.match(line)
154 # '#include "gtest/foo.h"'
155 # We translate it to "gtest/gtest.h", regardless of what foo is,
156 # since all gtest headers are fused into gtest/gtest.h.
158 # There is no need to #include gtest.h twice.
159 if gtest.GTEST_H_SEED not in processed_files:
160 processed_files.add(gtest.GTEST_H_SEED)
161 output_file.write('#include "%s"\n' % (gtest.GTEST_H_OUTPUT,))
163 # Otherwise we copy the line unchanged to the output file.
164 output_file.write(line)
166 ProcessFile(GMOCK_H_SEED)
170 def FuseGMockAllCcToFile(gmock_root, output_file):
171 """Scans folder gmock_root to fuse gmock-all.cc into output_file."""
173 processed_files = set()
175 def ProcessFile(gmock_source_file):
176 """Processes the given gmock source file."""
178 # We don't process the same #included file twice.
179 if gmock_source_file in processed_files:
182 processed_files.add(gmock_source_file)
184 # Reads each line in the given gmock source file.
186 with open(os.path.join(gmock_root, gmock_source_file), 'r') as fh:
188 m = INCLUDE_GMOCK_FILE_REGEX.match(line)
190 # '#include "gmock/foo.h"'
191 # We treat it as '#include "gmock/gmock.h"', as all other gmock
192 # headers are being fused into gmock.h and cannot be
193 # included directly. No need to
194 # #include "gmock/gmock.h"
197 if GMOCK_H_SEED not in processed_files:
198 processed_files.add(GMOCK_H_SEED)
199 output_file.write('#include "%s"\n' % (GMOCK_H_OUTPUT,))
201 m = gtest.INCLUDE_GTEST_FILE_REGEX.match(line)
203 # '#include "gtest/..."'
204 # There is no need to #include gtest.h as it has been
205 # #included by gtest-all.cc.
209 m = gtest.INCLUDE_SRC_FILE_REGEX.match(line)
211 # It's '#include "src/foo"' - let's process it recursively.
212 ProcessFile(m.group(1))
214 # Otherwise we copy the line unchanged to the output file.
215 output_file.write(line)
217 ProcessFile(GMOCK_ALL_CC_SEED)
220 def FuseGMockGTestAllCc(gmock_root, output_dir):
221 """Scans folder gmock_root to generate gmock-gtest-all.cc in output_dir."""
223 with open(os.path.join(output_dir, GMOCK_GTEST_ALL_CC_OUTPUT),
225 # First, fuse gtest-all.cc into gmock-gtest-all.cc.
226 gtest.FuseGTestAllCcToFile(GetGTestRootDir(gmock_root), output_file)
227 # Next, append fused gmock-all.cc to gmock-gtest-all.cc.
228 FuseGMockAllCcToFile(gmock_root, output_file)
231 def FuseGMock(gmock_root, output_dir):
232 """Fuses gtest.h, gmock.h, and gmock-gtest-all.h."""
234 ValidateGMockRootDir(gmock_root)
235 ValidateOutputDir(output_dir)
237 gtest.FuseGTestH(GetGTestRootDir(gmock_root), output_dir)
238 FuseGMockH(gmock_root, output_dir)
239 FuseGMockGTestAllCc(gmock_root, output_dir)
245 # fuse_gmock_files.py OUTPUT_DIR
246 FuseGMock(DEFAULT_GMOCK_ROOT_DIR, sys.argv[1])
248 # fuse_gmock_files.py GMOCK_ROOT_DIR OUTPUT_DIR
249 FuseGMock(sys.argv[1], sys.argv[2])
255 if __name__ == '__main__':