Add ability to publish package without a pubspec.

tools/publish_pkg.py

 #!/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 re
 import shutil
 import sys
 import subprocess
 import tempfile
 
@@ skipping 18 matching lines @@
   
 def Main(argv):
   HOME = os.path.dirname(os.path.dirname(os.path.realpath(__file__)))
 
   versionFile = os.path.join(HOME, 'tools', 'VERSION')
   major = ReadVersion(versionFile, 'MAJOR')
   minor = ReadVersion(versionFile, 'MINOR')
   build = ReadVersion(versionFile, 'BUILD')
   patch = ReadVersion(versionFile, 'PATCH')
   
+  # bleeding_edge has a fixed version number of 0.1.x.y . Don't allow users
+  # to publish packages from bleeding_edge.
   if major == 0 and minor <= 1:
     print 'Error: Do not run this script from a bleeding_edge checkout.'
     return -1
 
   version = '%d.%d.%d+%d' % (major, minor, build, patch)
 
   tmpDir = tempfile.mkdtemp()
   pkgName = argv[1].split('/').pop()
-  shutil.copytree(os.path.join(HOME, argv[1]), 
-                  os.path.join(tmpDir, pkgName))
 
-  # Add version to pubspec file.
   pubspec = os.path.join(tmpDir, pkgName, 'pubspec.yaml')
-  pubspecFile = open(pubspec)
-  lines = pubspecFile.readlines()
-  pubspecFile.close()
-  pubspecFile = open(pubspec, 'w')
-  foundVersion = False
-  for line in lines:
-    if line.startswith('version:'):
-      foundVersion = True
-    if line.startswith('description:') and not foundVersion:
-      pubspecFile.write('version: ' + version + '\n')
-    if not line.startswith('    sdk:'):
-      pubspecFile.write(line)
-  pubspecFile.close()
-      
+
+  if os.path.exists(os.path.join(HOME, argv[1], 'pubspec.yaml')):
+    #
+    # If pubspec.yaml exists, add the SDK's version number if
+    # no version number is present.
+    #
+    shutil.copytree(os.path.join(HOME, argv[1]), 
+                    os.path.join(tmpDir, pkgName))
+    pubspecFile = open(pubspec)

[Bob Nystrom, 2012/11/29 17:28:14]

How about:

with open(pubspec) as pubspecFile:
  ...

So you don't have to manually close?

[dgrove, 2012/11/29 18:45:31]

Done.

+    lines = pubspecFile.readlines()
+    pubspecFile.close()
+    pubspecFile = open(pubspec, 'w')
+    foundVersion = False
+    for line in lines:
+      if line.startswith('version:'):
+        foundVersion = True
+      if line.startswith('description:') and not foundVersion:
+        pubspecFile.write('version: ' + version + '\n')

[Bob Nystrom, 2012/11/29 17:28:14]

This will fail if the pubspec happens to have its description before it's
version (which is allowed as far as pub and yaml are concerned).

[dgrove, 2012/11/29 18:45:31]

Done.

+      if not line.startswith('    sdk:'):

[Bob Nystrom, 2012/11/29 17:28:14]

I'm not sure I understand this. Is the point to strip out any SDK dependencies?
Won't that break the package?

[dgrove, 2012/11/29 18:45:31]

I fixed this so that it strips out both 
   sdk: pkg_name
 and  {sdk: pkg_name}

+        pubspecFile.write(line)
+    pubspecFile.close()
+  else:
+    #
+    # If there's a lib/ directory in the package, copy the package.
+    # Otherwise, move the package's contents to lib/.
+    #
+    if os.path.exists(os.path.join(HOME, argv[1], 'lib')):
+      shutil.copytree(os.path.join(HOME, argv[1]), 
+                      os.path.join(tmpDir, pkgName))
+    else:
+      os.makedirs(os.path.join(tmpDir, pkgName))
+      shutil.copytree(os.path.join(HOME, argv[1]),
+                      os.path.join(tmpDir, pkgName, 'lib'))
+
+    # Create pubspec.yaml .
+    pubspecFile = open(pubspec, 'w')
+    pubspecFile.write('name: ' + pkgName + '_unsupported\n')
+    pubspecFile.write('version: ' + version + '\n')
+    pubspecFile.write("description: >\n")
+    pubspecFile.write('  A completely unsupported clone of Dart SDK library\n')
+    pubspecFile.write('  ' + argv[1] + ' . This package will change in\n')
+    pubspecFile.write('  unpredictable/incompatible ways without warning.\n')
+    pubspecFile.write('dependencies:\n')
+    pubspecFile.close()
+
   # Replace '../*/pkg' imports and parts.
   for root, dirs, files in os.walk(os.path.join(tmpDir, pkgName)):
     for name in files:
       if name.endswith('.dart'):
         ReplaceInFiles([os.path.join(root, name)], 
             [(r'(import|part)(\s+)(\'|")(\.\./)+pkg/', r'\1\2\3package:')])
   
-  print 'publishing version ' + version + ' of ' + argv[1] + ' to pub\n'
-  print tmpDir
+  print 'publishing version ' + version + ' of ' + argv[1] + ' to pub.\n'
   subprocess.call(['pub', 'publish'], cwd=os.path.join(tmpDir, pkgName))
   shutil.rmtree(tmpDir)
 
 if __name__ == '__main__':
   sys.exit(Main(sys.argv))