Parse metadata from dist module instead of importing it

kombu/__init__.py

@@ -6,58 +6,60 @@ __contact__ = "ask@celeryproject.org"
 __homepage__ = "http://github.com/ask/kombu/"
 __docformat__ = "restructuredtext en"
 
+# -eof meta-
+
 import os
 import sys
-if not os.environ.get("KOMBU_NO_EVAL", False):
-    # Lazy loading.
-    # - See werkzeug/__init__.py for the rationale behind this.
-    from types import ModuleType
 
-    all_by_module = {
-            "kombu.connection": ["BrokerConnection", "Connection"],
-            "kombu.entity": ["Exchange", "Queue"],
-            "kombu.messaging": ["Consumer", "Producer"],
-            "kombu.pools": ["connections", "producers"],
-    }
+# Lazy loading.
+# - See werkzeug/__init__.py for the rationale behind this.
+from types import ModuleType
 
-    object_origins = {}
-    for module, items in all_by_module.iteritems():
-        for item in items:
-            object_origins[item] = module
+all_by_module = {
+    "kombu.connection": ["BrokerConnection", "Connection"],
+    "kombu.entity": ["Exchange", "Queue"],
+    "kombu.messaging": ["Consumer", "Producer"],
+    "kombu.pools": ["connections", "producers"],
+}
 
-    class module(ModuleType):
+object_origins = {}
+for module, items in all_by_module.iteritems():
+    for item in items:
+        object_origins[item] = module
 
-        def __getattr__(self, name):
-            if name in object_origins:
-                module = __import__(object_origins[name], None, None, [name])
-                for extra_name in all_by_module[module.__name__]:
-                    setattr(self, extra_name, getattr(module, extra_name))
-                return getattr(module, name)
-            return ModuleType.__getattribute__(self, name)
+class module(ModuleType):
 
-        def __dir__(self):
-            result = list(new_module.__all__)
-            result.extend(("__file__", "__path__", "__doc__", "__all__",
-                           "__docformat__", "__name__", "__path__", "VERSION",
-                           "__package__", "__version__", "__author__",
-                           "__contact__", "__homepage__", "__docformat__"))
-            return result
+    def __getattr__(self, name):
+        if name in object_origins:
+            module = __import__(object_origins[name], None, None, [name])
+            for extra_name in all_by_module[module.__name__]:
+                setattr(self, extra_name, getattr(module, extra_name))
+            return getattr(module, name)
+        return ModuleType.__getattribute__(self, name)
 
-    # keep a reference to this module so that it's not garbage collected
-    old_module = sys.modules[__name__]
+    def __dir__(self):
+        result = list(new_module.__all__)
+        result.extend(("__file__", "__path__", "__doc__", "__all__",
+                       "__docformat__", "__name__", "__path__", "VERSION",
+                       "__package__", "__version__", "__author__",
+                       "__contact__", "__homepage__", "__docformat__"))
+        return result
 
-    new_module = sys.modules[__name__] = module(__name__)
-    new_module.__dict__.update({
-        "__file__": __file__,
-        "__path__": __path__,
-        "__doc__": __doc__,
-        "__all__": tuple(object_origins),
-        "__version__": __version__,
-        "__author__": __author__,
-        "__contact__": __contact__,
-        "__homepage__": __homepage__,
-        "__docformat__": __docformat__,
-        "VERSION": VERSION})
+# keep a reference to this module so that it's not garbage collected
+old_module = sys.modules[__name__]
+
+new_module = sys.modules[__name__] = module(__name__)
+new_module.__dict__.update({
+    "__file__": __file__,
+    "__path__": __path__,
+    "__doc__": __doc__,
+    "__all__": tuple(object_origins),
+    "__version__": __version__,
+    "__author__": __author__,
+    "__contact__": __contact__,
+    "__homepage__": __homepage__,
+    "__docformat__": __docformat__,
+    "VERSION": VERSION})
 
 if os.environ.get("KOMBU_LOG_DEBUG"):
     os.environ.update(KOMBU_LOG_CHANNEL="1", KOMBU_LOG_CONNECTION="1")

setup.py

@@ -24,10 +24,43 @@ except ImportError:
 
 from distutils.command.install import INSTALL_SCHEMES
 
-os.environ["KOMBU_NO_EVAL"] = "yes"
-import kombu
-os.environ.pop("KOMBU_NO_EVAL", None)
-sys.modules.pop("kombu", None)
+# -- Parse meta
+import re
+re_meta = re.compile(r'__(\w+?)__\s*=\s*(.*)')
+re_vers = re.compile(r'VERSION\s*=\s*\((.*?)\)')
+re_doc = re.compile(r'^"""(.+?)"""')
+here = os.path.abspath(os.path.dirname(__file__))
+meta_fh = open(os.path.join(here, "kombu/__init__.py"))
+rq = lambda s: s.strip("\"'")
+
+def add_default(m):
+    attr_name, attr_value = m.groups()
+    return ((attr_name, rq(attr_value)), )
+
+
+def add_version(m):
+    v = list(map(rq, m.groups()[0].split(", ")))
+    return (("VERSION", ".".join(v[0:3]) + "".join(v[3:])), )
+
+
+def add_doc(m):
+    return (("doc", m.groups()[0]), )
+
+pats = {re_meta: add_default,
+        re_vers: add_version,
+        re_doc: add_doc}
+try:
+    meta = {}
+    for line in meta_fh:
+        if line.strip() == '# -eof meta-':
+            break
+        for pattern, handler in pats.items():
+            m = pattern.match(line.strip())
+            if m:
+                meta.update(handler(m))
+finally:
+    meta_fh.close()
+# --
 
 packages, data_files = [], []
 root_dir = os.path.dirname(__file__)
@@ -69,11 +102,11 @@ else:
 
 setup(
     name='kombu',
-    version=kombu.__version__,
-    description=kombu.__doc__,
-    author=kombu.__author__,
-    author_email=kombu.__contact__,
-    url=kombu.__homepage__,
+    version=meta["VERSION"],
+    description=meta["doc"],
+    author=meta["author"],
+    author_email=meta["contact"],
+    url=meta["homepage"],
     platforms=["any"],
     packages=packages,
     data_files=data_files,