Allow to bootstrap using the development version.

Signed-off-by: Georgy Berdyshev - Георгий Бердышев <codingmaster@gmail.com>

dev.py

@@ -21,6 +21,11 @@ $Id$
 
 import os, sys, urllib2
 
+is_jython = sys.platform.startswith('java')
+
+if is_jython:
+    import subprocess
+
 for d in 'eggs', 'develop-eggs', 'bin':
     if not os.path.exists(d):
         os.mkdir(d)
@@ -35,10 +40,16 @@ except ImportError:
 
     import pkg_resources
 
-os.spawnle(os.P_WAIT, sys.executable, sys.executable, 'setup.py',
+if is_jython:
+    subprocess.Popen([sys.executable] + ['setup.py', '-q', 'develop', '-m', '-x',
+                        '-d', 'develop-eggs'], 
+                        env = {'PYTHONPATH': os.path.dirname(pkg_resources.__file__)}).wait()
+else:
+    os.spawnle(os.P_WAIT, sys.executable, sys.executable, 'setup.py',
                '-q', 'develop', '-m', '-x', '-d', 'develop-eggs',
                {'PYTHONPATH': os.path.dirname(pkg_resources.__file__)},
                )
+
 pkg_resources.working_set.add_entry('src')
 
 import zc.buildout.easy_install
@@ -46,4 +57,10 @@ zc.buildout.easy_install.scripts(
     ['zc.buildout'], pkg_resources.working_set , sys.executable, 'bin')
 
 bin_buildout = os.path.join('bin', 'buildout')
-sys.exit(os.spawnl(os.P_WAIT, bin_buildout, bin_buildout))
+
+if is_jython:
+    # Jython needs the script to be called twice via sys.executable
+    assert subprocess.Popen([sys.executable] + [bin_buildout]).wait() == 0
+    sys.exit(subprocess.Popen([sys.executable] + [bin_buildout]).wait())
+else:
+    sys.exit(os.spawnl(os.P_WAIT, bin_buildout, bin_buildout))