[PATCH] fetch2/__init__: Fix decodeurl to better handle urls without paths

[Richard Purdie <richard.purdie@linuxfoundation.org>]

If we specify urls such as npm://somehost;someparams the fetcher currently
does a poor job of handling mirrors of these urls due to deficiencies in the
way decodeurl works. This is because "somehost" is returned as a path, not
a host.

This tweaks the code so that unless its a file url, the host is returned
correctly.

This patch also adds test cases for these urls to the exist set of test
urls.

We need to tweak the URI() class since this thinks this is a relative url
which is clearly isn't. We also need to handle the fact that encodeurl will
error if passed a url of this form (it would want the path to be '/'.

Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

diff --git a/bitbake/lib/bb/fetch2/__init__.py b/bitbake/lib/bb/fetch2/__init__.py
index 6d00703..058adf2 100644
--- a/bitbake/lib/bb/fetch2/__init__.py
+++ b/bitbake/lib/bb/fetch2/__init__.py
@@ -327,7 +327,7 @@ class URI(object):
     def path(self, path):
         self._path = path
 
-        if re.compile("^/").match(path):
+        if not path or re.compile("^/").match(path):
             self.relative = False
         else:
             self.relative = True
@@ -375,9 +375,12 @@ def decodeurl(url):
     if locidx != -1 and type.lower() != 'file':
         host = location[:locidx]
         path = location[locidx:]
-    else:
+    elif type.lower() == 'file':
         host = ""
         path = location
+    else:
+        host = location
+        path = ""
     if user:
         m = re.compile('(?P<user>[^:]+)(:?(?P<pswd>.*))').match(user)
         if m:
diff --git a/bitbake/lib/bb/tests/fetch.py b/bitbake/lib/bb/tests/fetch.py
index 850e2ba..f6b11d5 100644
--- a/bitbake/lib/bb/tests/fetch.py
+++ b/bitbake/lib/bb/tests/fetch.py
@@ -228,7 +228,38 @@ class URITest(unittest.TestCase):
             'params': {},
             'query': {},
             'relative': False
+        },
+        "http://somesite.net;someparam=1": {
+            'uri': 'http://somesite.net;someparam=1',
+            'scheme': 'http',
+            'hostname': 'somesite.net',
+            'port': None,
+            'hostport': 'somesite.net',
+            'path': '',
+            'userinfo': '',
+            'userinfo': '',
+            'username': '',
+            'password': '',
+            'params': {"someparam" : "1"},
+            'query': {},
+            'relative': False
+        },
+        "file://somelocation;someparam=1": {
+            'uri': 'file:somelocation;someparam=1',
+            'scheme': 'file',
+            'hostname': '',
+            'port': None,
+            'hostport': '',
+            'path': 'somelocation',
+            'userinfo': '',
+            'userinfo': '',
+            'username': '',
+            'password': '',
+            'params': {"someparam" : "1"},
+            'query': {},
+            'relative': True
         }
+
     }
 
     def test_uri(self):
@@ -623,11 +654,18 @@ class URLHandle(unittest.TestCase):
        "http://www.google.com/index.html" : ('http', 'www.google.com', '/index.html', '', '', {}),
        "cvs://anoncvs@cvs.handhelds.org/cvs;module=familiar/dist/ipkg" : ('cvs', 'cvs.handhelds.org', '/cvs', 'anoncvs', '', {'module': 'familiar/dist/ipkg'}),
        "cvs://anoncvs:anonymous@cvs.handhelds.org/cvs;tag=V0-99-81;module=familiar/dist/ipkg" : ('cvs', 'cvs.handhelds.org', '/cvs', 'anoncvs', 'anonymous', {'tag': 'V0-99-81', 'module': 'familiar/dist/ipkg'}),
-       "git://git.openembedded.org/bitbake;branch=@foo" : ('git', 'git.openembedded.org', '/bitbake', '', '', {'branch': '@foo'})
+       "git://git.openembedded.org/bitbake;branch=@foo" : ('git', 'git.openembedded.org', '/bitbake', '', '', {'branch': '@foo'}),
+       "file://somelocation;someparam=1": ('file', '', 'somelocation', '', '', {'someparam': '1'}),
     }
+    # we require a pathname to encodeurl but users can still pass such urls to 
+    # decodeurl and we need to handle them
+    decodedata = datatable.copy()
+    decodedata.update({
+       "http://somesite.net;someparam=1": ('http', 'somesite.net', '', '', '', {'someparam': '1'}),
+    })
 
     def test_decodeurl(self):
-        for k, v in self.datatable.items():
+        for k, v in self.decodedata.items():
             result = bb.fetch.decodeurl(k)
             self.assertEqual(result, v)