add dry run option

src/zope/wineggbuilder/README.txt

@@ -23,7 +23,7 @@ Let's see:
 
     >>> import os.path
     >>> testininame = os.path.join(os.path.dirname(build.__file__), 'test.ini')
-    >>> build.main([testininame, '-v'])
+    >>> build.main([testininame, '-v']) # doctest: +REPORT_NDIFF
     INFO - loading configuration from ...zope.wineggbuilder\trunk\src\zope\wineggbuilder\test.ini
     INFO - Starting to build
     DEBUG - getting http://pypi.python.org/simple/zope.proxy/

src/zope/wineggbuilder/base.py

@@ -172,4 +172,9 @@ def rmtree(dirname):
 parser.add_option(
     "-v", "--verbose", action="store_true",
     dest="verbose", default=False,
-    help="When specified, debug information is created.")
+    help="When specified, debug information is displayed.")
+
+parser.add_option(
+    "-d", "--dryrun", action="store_true",
+    dest="dryrun", default=False,
+    help="When specified, no upload is done.")

src/zope/wineggbuilder/build.py

@@ -82,6 +82,10 @@ def build(self, package, version, files, sourceFolder):
 
         LOGGER.debug('Running: %s\nIn: %s', self.command, sourceFolder)
 
+        if self.options.dryrun:
+            LOGGER.info("Dry run, no compile and upload")
+            return
+
         try:
             #this ought to build and upload the egg
             output = cmd.do(command)