mirror of
https://github.com/dart-lang/sdk
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5ed896c9ae
Change-Id: I60473b9729b310bd3909c98607ccb708c52dac15 Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/357500 Reviewed-by: Zach Anderson <zra@google.com> Reviewed-by: Alexander Aprelev <aam@google.com> Commit-Queue: Jason Simmons <jsimmons@google.com>
140 lines
4.4 KiB
Python
Executable file
140 lines
4.4 KiB
Python
Executable file
#!/usr/bin/env python3
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# Copyright (c) 2017, the Dart project authors. Please see the AUTHORS file
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# for details. All rights reserved. Use of this source code is governed by a
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# BSD-style license that can be found in the LICENSE file.
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import argparse
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import gn_helpers
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import os
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import re
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import shutil
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import sys
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def ParseArgs(args):
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args = args[1:]
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parser = argparse.ArgumentParser(
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description='A script to copy a file tree somewhere')
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parser.add_argument('--depfile',
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'-d',
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type=str,
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help='Path to a depfile to write when copying.')
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parser.add_argument(
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'--exclude_patterns',
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'-e',
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type=str,
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help='Patterns to exclude [passed to shutil.copytree]')
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parser.add_argument(
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'--from', '-f', dest="copy_from", type=str, help='Source directory')
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parser.add_argument(
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'--stamp',
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'-s',
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type=str,
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help='The path to a stamp file to output when finished.')
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parser.add_argument('--to', '-t', type=str, help='Destination directory')
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return parser.parse_args(args)
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def ValidateArgs(args):
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if not args.copy_from or not os.path.isdir(args.copy_from):
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print("--from argument must refer to a directory")
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return False
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if not args.to:
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print("--to is required")
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return False
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return True
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# Returns a list of the files under 'src' that were copied.
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def CopyTree(src, dst, ignore=None):
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copied_files = []
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# Recursive helper method to collect errors but keep processing.
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def copy_tree(src, dst, ignore, errors):
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names = os.listdir(src)
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if ignore is not None:
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ignored_names = ignore(src, names)
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else:
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ignored_names = set()
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if not os.path.exists(dst):
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os.makedirs(dst)
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for name in names:
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if name in ignored_names:
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continue
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srcname = os.path.join(src, name)
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dstname = os.path.join(dst, name)
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try:
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if os.path.isdir(srcname):
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copy_tree(srcname, dstname, ignore, errors)
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else:
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copied_files.append(srcname)
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shutil.copy(srcname, dstname)
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except (IOError, os.error) as why:
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errors.append((srcname, dstname, str(why)))
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try:
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shutil.copystat(src, dst)
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except WindowsError:
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# Can't copy file access times on Windows.
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pass
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except OSError as why:
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errors.append((src, dst, str(why)))
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# Format errors from file copies.
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def format_error(error):
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if len(error) == 1:
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return "Error: {msg}".format(msg=str(error[0]))
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return "From: {src}\nTo: {dst}\n{msg}" \
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.format(src=error[0], dst=error[1], msg=error[2])
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errors = []
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copy_tree(src, dst, ignore, errors)
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if errors:
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failures = "\n\n".join(format_error(error) for error in errors)
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parts = ("Some file copies failed:", "=" * 78, failures)
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msg = '\n'.join(parts)
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raise RuntimeError(msg)
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return copied_files
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def WriteDepfile(depfile, stamp, dep_list):
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os.makedirs(os.path.dirname(depfile), exist_ok=True)
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# Paths in the depfile must be relative to the root build output directory,
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# which is the cwd that ninja invokes the script from.
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cwd = os.getcwd()
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relstamp = os.path.relpath(stamp, cwd)
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reldep_list = [os.path.relpath(d, cwd) for d in dep_list]
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# Depfile paths must use an escape sequence for space characters.
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reldep_list = [path.replace(" ", r"\ ") for path in reldep_list]
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with open(depfile, 'w') as f:
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print("{0}: {1}".format(relstamp, " ".join(reldep_list)), file=f)
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def Main(argv):
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args = ParseArgs(argv)
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if not ValidateArgs(args):
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return -1
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if args.exclude_patterns == None:
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copied_files = CopyTree(args.copy_from, args.to)
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else:
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patterns = args.exclude_patterns.split(',')
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copied_files = CopyTree(args.copy_from,
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args.to,
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ignore=shutil.ignore_patterns(*patterns))
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if args.depfile and args.stamp:
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WriteDepfile(args.depfile, args.stamp, copied_files)
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if args.stamp:
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open(args.stamp, 'w').close()
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return 0
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if __name__ == '__main__':
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sys.exit(Main(sys.argv))
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