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| 1 #!/usr/bin/env python |
| 2 |
| 3 # Copyright 2013 Google Inc. All rights reserved. |
| 4 # Use of this source code is governed by a BSD-style license that can be |
| 5 # found in the LICENSE file. |
| 6 |
| 7 """ |
| 8 This script will take as an argument either a list of skp files or a |
| 9 set of directories that contains skp files. It will then test each |
| 10 skp file with the `render_pictures` program. If that program either |
| 11 spits out any unexpected output or doesn't return 0, I will flag that |
| 12 skp file as problematic. We then extract all of the embedded images |
| 13 inside the skp and test each one of them against the |
| 14 SkImageDecoder::DecodeFile function. Again, we consider any |
| 15 extraneous output or a bad return value an error. In the event of an |
| 16 error, we retain the image and print out information about the error. |
| 17 The output (on stdout) is formatted as a csv document. |
| 18 |
| 19 A copy of each bad image is left in a directory created by |
| 20 tempfile.mkdtemp(). |
| 21 """ |
| 22 |
| 23 import glob |
| 24 import os |
| 25 import re |
| 26 import shutil |
| 27 import subprocess |
| 28 import sys |
| 29 import tempfile |
| 30 import threading |
| 31 |
| 32 import test_rendering # skia/trunk/tools. reuse FindPathToProgram() |
| 33 |
| 34 USAGE = """ |
| 35 Usage: |
| 36 {command} SKP_FILE [SKP_FILES] |
| 37 {command} SKP_DIR [SKP_DIRS]\n |
| 38 Environment variables: |
| 39 To run multiple worker threads, set NUM_THREADS. |
| 40 To use a different temporary storage location, set TMPDIR. |
| 41 |
| 42 """ |
| 43 |
| 44 def execute_program(args, ignores=None): |
| 45 """ |
| 46 Execute a process and waits for it to complete. Returns all |
| 47 output (stderr and stdout) after (optional) filtering. |
| 48 |
| 49 @param args is passed into subprocess.Popen(). |
| 50 |
| 51 @param ignores (optional) is a list of regular expression strings |
| 52 that will be ignored in the output. |
| 53 |
| 54 @returns a tuple (returncode, output) |
| 55 """ |
| 56 if ignores is None: |
| 57 ignores = [] |
| 58 else: |
| 59 ignores = [re.compile(ignore) for ignore in ignores] |
| 60 proc = subprocess.Popen( |
| 61 args, |
| 62 stdout=subprocess.PIPE, |
| 63 stderr=subprocess.STDOUT) |
| 64 output = ''.join( |
| 65 line for line in proc.stdout |
| 66 if not any(bool(ignore.match(line)) for ignore in ignores)) |
| 67 returncode = proc.wait() |
| 68 return (returncode, output) |
| 69 |
| 70 |
| 71 def list_files(paths): |
| 72 """ |
| 73 Accepts a list of directories or filenames on the command line. |
| 74 We do not choose to recurse into directories beyond one level. |
| 75 """ |
| 76 class NotAFileException(Exception): |
| 77 pass |
| 78 for path in paths: |
| 79 for globbedpath in glob.iglob(path): # useful on win32 |
| 80 if os.path.isdir(globbedpath): |
| 81 for filename in os.listdir(globbedpath): |
| 82 newpath = os.path.join(globbedpath, filename) |
| 83 if os.path.isfile(newpath): |
| 84 yield newpath |
| 85 elif os.path.isfile(globbedpath): |
| 86 yield globbedpath |
| 87 else: |
| 88 raise NotAFileException('{} is not a file'.format(globbedpath)) |
| 89 |
| 90 |
| 91 class BadImageFinder(object): |
| 92 |
| 93 def __init__(self, directory=None): |
| 94 self.render_pictures = test_rendering.FindPathToProgram( |
| 95 'render_pictures') |
| 96 self.test_image_decoder = test_rendering.FindPathToProgram( |
| 97 'test_image_decoder') |
| 98 assert os.path.isfile(self.render_pictures) |
| 99 assert os.path.isfile(self.test_image_decoder) |
| 100 if directory is None: |
| 101 self.saved_image_dir = tempfile.mkdtemp(prefix='skia_skp_test_') |
| 102 else: |
| 103 assert os.path.isdir(directory) |
| 104 self.saved_image_dir = directory |
| 105 self.bad_image_count = 0 |
| 106 |
| 107 def process_files(self, skp_files): |
| 108 for path in skp_files: |
| 109 self.process_file(path) |
| 110 |
| 111 def process_file(self, skp_file): |
| 112 assert self.saved_image_dir is not None |
| 113 assert os.path.isfile(skp_file) |
| 114 args = [self.render_pictures, '--readPath', skp_file] |
| 115 ignores = ['^process_in', '^deserializ', '^drawing...', '^Non-defaul'] |
| 116 returncode, output = execute_program(args, ignores) |
| 117 if (returncode == 0) and not output: |
| 118 return |
| 119 temp_image_dir = tempfile.mkdtemp(prefix='skia_skp_test___') |
| 120 args = [ self.render_pictures, '--readPath', skp_file, |
| 121 '--writePath', temp_image_dir, '--writeEncodedImages'] |
| 122 subprocess.call(args, stderr=open(os.devnull,'w'), |
| 123 stdout=open(os.devnull,'w')) |
| 124 for image_name in os.listdir(temp_image_dir): |
| 125 image_path = os.path.join(temp_image_dir, image_name) |
| 126 assert(os.path.isfile(image_path)) |
| 127 args = [self.test_image_decoder, image_path] |
| 128 returncode, output = execute_program(args, []) |
| 129 if (returncode == 0) and not output: |
| 130 os.remove(image_path) |
| 131 continue |
| 132 try: |
| 133 shutil.move(image_path, self.saved_image_dir) |
| 134 except (shutil.Error,): |
| 135 # If this happens, don't stop the entire process, |
| 136 # just warn the user. |
| 137 os.remove(image_path) |
| 138 sys.stderr.write('{0} is a repeat.\n'.format(image_name)) |
| 139 self.bad_image_count += 1 |
| 140 if returncode == 2: |
| 141 returncode = 'SkImageDecoder::DecodeFile returns false' |
| 142 elif returncode == 0: |
| 143 returncode = 'extra verbosity' |
| 144 assert output |
| 145 elif returncode == -11: |
| 146 returncode = 'segmentation violation' |
| 147 else: |
| 148 returncode = 'returncode: {}'.format(returncode) |
| 149 output = output.strip().replace('\n',' ').replace('"','\'') |
| 150 suffix = image_name[-3:] |
| 151 output_line = '"{0}","{1}","{2}","{3}","{4}"\n'.format( |
| 152 returncode, suffix, skp_file, image_name, output) |
| 153 sys.stdout.write(output_line) |
| 154 sys.stdout.flush() |
| 155 os.rmdir(temp_image_dir) |
| 156 return |
| 157 |
| 158 def main(main_argv): |
| 159 if not main_argv or main_argv[0] in ['-h', '-?', '-help', '--help']: |
| 160 sys.stderr.write(USAGE.format(command=__file__)) |
| 161 return 1 |
| 162 if 'NUM_THREADS' in os.environ: |
| 163 number_of_threads = int(os.environ['NUM_THREADS']) |
| 164 if number_of_threads < 1: |
| 165 number_of_threads = 1 |
| 166 else: |
| 167 number_of_threads = 1 |
| 168 os.environ['skia_images_png_suppressDecoderWarnings'] = 'true' |
| 169 os.environ['skia_images_jpeg_suppressDecoderWarnings'] = 'true' |
| 170 |
| 171 temp_dir = tempfile.mkdtemp(prefix='skia_skp_test_') |
| 172 sys.stderr.write('Directory for bad images: {}\n'.format(temp_dir)) |
| 173 sys.stdout.write('"Error","Filetype","SKP File","Image File","Output"\n') |
| 174 sys.stdout.flush() |
| 175 |
| 176 finders = [ |
| 177 BadImageFinder(temp_dir) for index in xrange(number_of_threads)] |
| 178 arguments = [[] for index in xrange(number_of_threads)] |
| 179 for index, item in enumerate(list_files(main_argv)): |
| 180 ## split up the given targets among the worker threads |
| 181 arguments[index % number_of_threads].append(item) |
| 182 threads = [ |
| 183 threading.Thread( |
| 184 target=BadImageFinder.process_files, args=(finder,argument)) |
| 185 for finder, argument in zip(finders, arguments)] |
| 186 for thread in threads: |
| 187 thread.start() |
| 188 for thread in threads: |
| 189 thread.join() |
| 190 number = sum(finder.bad_image_count for finder in finders) |
| 191 sys.stderr.write('Number of bad images found: {}\n'.format(number)) |
| 192 return 0 |
| 193 |
| 194 if __name__ == '__main__': |
| 195 exit(main(sys.argv[1:])) |
| 196 |
| 197 # LocalWords: skp stdout csv |
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