fetch2/git.py: improve error reporting when an invalid protocol is used

When an invalid 'protocol' parameter is used in a git SRC_URI,
the error reported was not helpful:

ERROR: Function 'Fetcher failure for URL: 'None'.
<environment dump>
fatal: Could not make temporary directory: No such file or directory

So instead check that ud.proto is set to something valid, and if not
raise a meaningful ParameterError which explains that the protocol
type is the source of the problem.

This fixes bug [YOCTO #1142]

(Bitbake rev: a2a29b72275ab03a263f4479a590b92111a0d6a8)

Signed-off-by: Scott Garman <scott.a.garman@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

1 files changed, 3 insertions, 0 deletions

diff --git a/bitbake/lib/bb/fetch2/git.py b/bitbake/lib/bb/fetch2/git.py
index 6979beaef5..f3bc793a6a 100644
--- a/bitbake/lib/bb/fetch2/git.py
+++ b/bitbake/lib/bb/fetch2/git.py
@@ -88,6 +88,9 @@ class Git(FetchMethod):
         else:
             ud.proto = "git"
 
+        if not ud.proto in ('git', 'file', 'ssh', 'http', 'https'):
+            raise bb.fetch2.ParameterError("Invalid protocol type", ud.url)
+
         ud.nocheckout = ud.parm.get("nocheckout","0") == "1"
 
         ud.rebaseable = ud.parm.get("rebaseable","0") == "1"