mirror of
https://github.com/dart-lang/sdk
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c7d5711688
Cleans up Python Code in Build Tools TEST: build everything and run tests BUG: https://code.google.com/p/dart/issues/detail?id=19592 R=ricow@google.com Review URL: https://codereview.chromium.org//350483003 git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@38573 260f80e4-7a28-3924-810f-c04153c831b5
105 lines
3.1 KiB
Python
105 lines
3.1 KiB
Python
#!/usr/bin/env python
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# Copyright (c) 2012, 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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"""Tool for creating symlinks from SOURCES to TARGET.
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For each SOURCE in SOURCES create a link from SOURCE to TARGET. If a
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SOURCE ends with .../lib, the lib suffix is ignored when determining
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the name of the target link.
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Before creating any links, the old entries of the TARGET directory will be
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removed.
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Usage:
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python tools/make_links.py OPTIONS TARGET SOURCES...
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"""
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import optparse
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import os
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import shutil
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import subprocess
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import sys
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import utils
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def get_options():
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result = optparse.OptionParser()
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result.add_option("--timestamp_file", "",
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help='Create a timestamp file when done creating the links.',
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default='')
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return result.parse_args()
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def make_link(source, target, orig_source):
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if os.path.islink(target):
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print 'Removing %s' % target
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sys.stdout.flush()
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os.unlink(target)
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if os.path.isdir(target):
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print 'Removing %s' % target
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sys.stdout.flush()
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os.rmdir(target)
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if os.path.isfile(orig_source):
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print 'Copying file from %s to %s' % (orig_source, target)
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sys.stdout.flush()
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shutil.copyfile(orig_source, target)
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return 0
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else:
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print 'Creating link from %s to %s' % (source, target)
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sys.stdout.flush()
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if utils.GuessOS() == 'win32':
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return subprocess.call(['mklink', '/j', target, source], shell=True)
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else:
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return subprocess.call(['ln', '-s', source, target])
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def create_timestamp_file(options):
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if options.timestamp_file != '':
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dir_name = os.path.dirname(options.timestamp_file)
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if not os.path.exists(dir_name):
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os.mkdir(dir_name)
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open(options.timestamp_file, 'w').close()
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def main(argv):
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(options, args) = get_options()
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target = os.path.relpath(args[0])
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if os.path.exists(target):
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# If the packages directory already exists, delete the current links inside
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# it. This is necessary, otherwise we can end up having links in there
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# pointing to directories which no longer exist (on incremental builds).
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for link in os.listdir(target):
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full_link = os.path.join(target, link)
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if os.path.isdir(full_link) and utils.IsWindows():
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# It seems like python on Windows is treating pseudo symlinks to
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# directories as directories.
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os.rmdir(full_link)
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else:
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os.remove(full_link)
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else:
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os.makedirs(target)
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for source in args[1:]:
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# Assume the source directory is named ".../NAME/lib".
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(name, lib) = os.path.split(source)
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if lib != 'lib':
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name = source
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# Remove any addtional path components preceding NAME.
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(path, name) = os.path.split(name)
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orig_source = source
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if utils.GuessOS() == 'win32':
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source = os.path.relpath(source)
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else:
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source = os.path.relpath(source, start=target)
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exit_code = make_link(source, os.path.join(target, name), orig_source)
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if exit_code != 0:
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return exit_code
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create_timestamp_file(options)
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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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