diff options
Diffstat (limited to 'chromium/mojo/tools/check_mojom_golden_files.py')
-rwxr-xr-x | chromium/mojo/tools/check_mojom_golden_files.py | 99 |
1 files changed, 99 insertions, 0 deletions
diff --git a/chromium/mojo/tools/check_mojom_golden_files.py b/chromium/mojo/tools/check_mojom_golden_files.py new file mode 100755 index 00000000000..6c2e187c8ae --- /dev/null +++ b/chromium/mojo/tools/check_mojom_golden_files.py @@ -0,0 +1,99 @@ +#!/usr/bin/env python +# Copyright 2014 The Chromium Authors. All rights reserved. +# Use of this source code is governed by a BSD-style license that can be +# found in the LICENSE file. + +import argparse +import os.path +import sys +from filecmp import dircmp +from shutil import rmtree +from tempfile import mkdtemp + +_script_dir = os.path.dirname(os.path.abspath(__file__)) +_mojo_dir = os.path.join(_script_dir, os.pardir) +sys.path.insert(0, os.path.join(_mojo_dir, "public", "tools", "bindings", + "pylib")) +from mojom_tests.support.find_files import FindFiles +from mojom_tests.support.run_bindings_generator import RunBindingsGenerator + + +def _ProcessDircmpResults(results, verbose=False): + """Prints results of directory comparison and returns true if they are + identical (note: the "left" directory should be the golden directory).""" + rv = not (bool(results.left_only) or bool(results.right_only) or \ + bool(results.common_funny) or bool(results.funny_files) or \ + bool(results.diff_files)) + if verbose: + for f in results.left_only: + print "%s exists in golden directory but not in current output" % f + for f in results.right_only: + print "%s exists in current output but not in golden directory" % f + for f in results.common_funny + results.funny_files: + print "Unable to compare %s between golden directory and current output" \ + % f + for f in results.diff_files: + print "%s differs between golden directory and current output" % f + for r in results.subdirs.values(): + # If we're being verbose, check subdirectories even if we know that there + # are differences. Note that it's "... and rv" to avoid the short-circuit. + if rv or verbose: + rv = _ProcessDircmpResults(r, verbose=verbose) and rv + return rv + + +def main(): + parser = argparse.ArgumentParser() + parser.add_argument("--generate_golden_files", action="store_true", + help=("generate golden files (does not obliterate " + "directory")) + parser.add_argument("--keep_temp_dir", action="store_true", + help="don't delete the temporary directory") + parser.add_argument("--verbose", action="store_true", + help="spew excess verbiage") + parser.add_argument("golden_dir", metavar="GOLDEN_DIR", + help="directory with the golden files") + args = parser.parse_args() + + if args.generate_golden_files: + if os.path.exists(args.golden_dir): + print "WARNING: golden directory %s already exists" % args.golden_dir + out_dir = args.golden_dir + else: + if not os.path.exists(args.golden_dir): + print "ERROR: golden directory %s does not exist" % args.golden_dir + return 1 + out_dir = mkdtemp() + if args.verbose: + print "Generating files to %s ..." % out_dir + + mojom_files = FindFiles(_mojo_dir, "*.mojom") + for mojom_file in mojom_files: + if args.verbose: + print " Processing %s ..." % os.path.relpath(mojom_file, _mojo_dir) + RunBindingsGenerator(out_dir, _mojo_dir, mojom_file) + + if args.generate_golden_files: + return 0 + + identical = _ProcessDircmpResults(dircmp(args.golden_dir, out_dir, ignore=[]), + verbose=args.verbose) + + if args.keep_temp_dir: + if args.verbose: + print "Not removing %s ..." % out_dir + else: + if args.verbose: + print "Removing %s ..." % out_dir + rmtree(out_dir) + + if not identical: + print "FAILURE: current output differs from golden files" + return 1 + + print "SUCCESS: current output identical to golden files" + return 0 + + +if __name__ == '__main__': + sys.exit(main()) |