text: #!/usr/bin/env python
  #
  # Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
  # for details. All rights reserved. Use of this source code is governed by a
  # BSD-style license that can be found in the LICENSE file.
  #
  # Script to push a package to pub.
  #
  # Usage: publish_pkg.py pkg_dir
  #
  # "pub" must be in PATH.
  
  import os
  import os.path
  import shutil
  import sys
  import subprocess
  import tempfile
  
  
  def Main(argv):
      HOME = os.path.dirname(os.path.dirname(os.path.realpath(__file__)))
  
      pkgName = os.path.basename(os.path.normpath(argv[1]))
  
      pubspec = os.path.join(HOME, argv[1], 'pubspec.yaml')
      if not os.path.exists(pubspec):
          print 'Error: did not find pubspec.yaml at ' + pubspec
          return -1
  
      with open(pubspec) as pubspecFile:
          lines = pubspecFile.readlines()
  
      version = None
      foundSdkConstraint = False
      inDependencies = False
      for line in lines:
          if line.startswith('dependencies:'):
              inDependencies = True
          elif line.startswith('environment:'):
              foundSdkConstraint = True
          elif line[0].isalpha():
              inDependencies = False
          if line.startswith('version:'):
              version = line[len('version:'):].strip()
          if inDependencies:
              if line.endswith(': any'):
                  print 'Error in %s: should not use "any" version constraint: %s' % (
                      pubspec, line)
                  return -1
  
      if not version:
          print 'Error in %s: did not find package version.' % pubspec
          return -1
  
      if not foundSdkConstraint:
          print 'Error in %s: did not find SDK version constraint.' % pubspec
          return -1
  
      tmpDir = tempfile.mkdtemp()
  
      #
      # If pubspec.yaml exists, check that the SDK's version constraint is valid
      #
      shutil.copytree(os.path.join(HOME, argv[1]), os.path.join(tmpDir, pkgName))
  
      if not os.path.exists(os.path.join(tmpDir, pkgName, 'LICENSE')):
          with open(os.path.join(tmpDir, pkgName, 'LICENSE'), 'w') as licenseFile:
              licenseFile.write(
                  '''Copyright 2014, the Dart project authors. All rights reserved.
  Redistribution and use in source and binary forms, with or without
  modification, are permitted provided that the following conditions are
  met:
  
      * Redistributions of source code must retain the above copyright
        notice, this list of conditions and the following disclaimer.
      * Redistributions in binary form must reproduce the above
        copyright notice, this list of conditions and the following
        disclaimer in the documentation and/or other materials provided
        with the distribution.
      * Neither the name of Google Inc. nor the names of its
        contributors may be used to endorse or promote products derived
        from this software without specific prior written permission.
  
  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  ''')
  
      print 'publishing version ' + version + ' of ' + argv[1] + ' to pub.\n'
  
      # TODO(jmesserly): this code puts things in the pub cache. Useful for testing
      # without actually uploading.
      #cacheDir = os.path.join(
      #    os.path.expanduser('~/.pub-cache/hosted/pub.dartlang.org'),
      #    pkgName + '-' + version)
      #print 'Moving to ' + cacheDir
      #shutil.move(os.path.join(tmpDir, pkgName), cacheDir)
  
      subprocess.call(['pub', 'publish'], cwd=os.path.join(tmpDir, pkgName))
      shutil.rmtree(tmpDir)
  
  
  if __name__ == '__main__':
      sys.exit(Main(sys.argv))
  