Add a tool to publish packages in the repo to pub.

tools/publish_pkg.py

+#!/usr/bin/env python

[Jennifer Messerly, 2012/11/29 01:07:05]

copyright after this line?

[dgrove, 2012/11/29 01:14:23]

Done.

+#
+# Script to push a package to pub. 
+#
+# Usage: publish_pkg.py pkg_dir
+
+
+import os
+import os.path
+import re
+import shutil
+import sys
+import subprocess
+import tempfile
+
+def ReplaceInFiles(paths, subs):
+  '''Reads a series of files, applies a series of substitutions to each, and
+     saves them back out. subs should by a list of (pattern, replace) tuples.'''

[Bob Nystrom, 2012/11/29 00:59:13]

"by" -> "be"

[dgrove, 2012/11/29 01:14:23]

Done.

+  for path in paths:
+    contents = open(path).read()

[Jennifer Messerly, 2012/11/29 01:07:05]

It's usually considered good practice to call .close(), though the refcount GC
probably will do it soon enough here.

(if we can assume newer Pythons, you could also use "with" to auto-close it,
including if an exception happens)

[dgrove, 2012/11/29 01:14:23]

Done.

+    for pattern, replace in subs:
+      contents = re.sub(pattern, replace, contents)
+
+    dest = open(path, 'w')
+    dest.write(contents)
+    dest.close()
+
+
+def readVersion(file, field):

[Bob Nystrom, 2012/11/29 00:59:13]

"ReadVersion" to be consistent with other function names?

[Jennifer Messerly, 2012/11/29 01:07:05]

would be good to be consistent about UpperCamelCase vs lowerCamelCase.

(official Python style is lower_case_with_underscores but it looks like the Dart
repository is doing the UpperCamelCase for some reason.)

[dgrove, 2012/11/29 01:14:23]

Done.

+  for line in open(file).read().split('\n'):
+    [k, v] = re.split('\s+', line)
+    if field == k:
+      return int(v)
+  
+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')
+  
+  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.
+  pubspecFile = os.path.join(tmpDir, pkgName, 'pubspec.yaml')
+  lines = open(pubspecFile).readlines()
+  pubspec = open(pubspecFile, 'w')
+  for line in lines:
+    if line.startswith('description:'):
+      pubspec.write('version: ' + version + '\n')

[Bob Nystrom, 2012/11/29 00:59:13]

How about only doing this only if the pubspec doesn't already have a version?
That way we can roll hand-maintained versions in and the script will still work.

[dgrove, 2012/11/29 01:14:23]

Done.

+    if not line.startswith('    sdk:'):
+      pubspec.write(line)
+  pubspec.close()
+      
+  # Delete .svn directories, replace '../*/pkg' imports and parts.

[Jennifer Messerly, 2012/11/29 01:07:05]

Ideally we could delete any file that is not in source control. (or conversely
only copy things *not* in src control)

Does SVN have an equivalent of "git ls-files"? that's what we've been using in
our upload scripts to ensure we don't get any non-src control files.

[dgrove, 2012/11/29 01:14:23]

Not that I know of. For now, pub will ignore .svn, so I got rid of that.
On 2012/11/29 01:07:05, John Messerly wrote:

+  for root, dirs, files in os.walk(os.path.join(tmpDir, pkgName)):
+    if '.svn' in dirs:

[Bob Nystrom, 2012/11/29 00:59:13]

Pub should do this itself. Filed a bug:
http://code.google.com/p/dart/issues/detail?id=7017

[Bob Nystrom, 2012/11/29 01:04:58]

Actually, I didn't give Nathan enough credit. It should already handle this.

[Jennifer Messerly, 2012/11/29 01:07:05]

according to Nathan, pub will already ignore "." files if you aren't in a git
repository

[dgrove, 2012/11/29 01:14:23]

Done.

[dgrove, 2012/11/29 01:14:23]

Done.

+      shutil.rmtree(os.path.join(root, '.svn'))
+    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'
+  subprocess.call(['pub', 'publish', os.path.join(tmpDir, pkgName)])

[Bob Nystrom, 2012/11/29 00:59:13]

Pub doesn't take a path to the package. Instead, it assumes its the CWD. You'll
need to set that when you spawn the process.

[dgrove, 2012/11/29 01:14:23]

Done.

+  shutil.rmtree(tmpDir)
+
+if __name__ == '__main__':
+  sys.exit(Main(sys.argv))