[OE-core] [PATCH 3/4] sanity.bbclass:check_connectivity(): print more error messages

[Robert Yang]

This can help fix the problem when the error happens.

Now the error message is:
    Fetcher failure for URL: 'https://www.example.com/'. URL https://www.example.com/ doesn't work.
    Please ensure your host's network is configured correctly,
    or set BB_NO_NETWORK = "1" to disable network access if
    all required sources are on local disk.

Signed-off-by: Robert Yang <liezhi.yang at windriver.com>
---
 meta/classes/sanity.bbclass | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/meta/classes/sanity.bbclass b/meta/classes/sanity.bbclass
index 7682ffb..7e383f9 100644
--- a/meta/classes/sanity.bbclass
+++ b/meta/classes/sanity.bbclass
@@ -380,7 +380,10 @@ def check_connectivity(d):
             # pointed to a support mechanism.
             msg = data.getVar('CONNECTIVITY_CHECK_MSG', True) or ""
             if len(msg) == 0:
-                msg = "%s. Please ensure your network is configured correctly.\n" % err
+                msg = "%s.\n" % err
+                msg += "    Please ensure your host's network is configured correctly,\n"
+                msg += "    or set BB_NO_NETWORK = \"1\" to disable network access if\n"
+                msg += "    all required sources are on local disk.\n"
             retval = msg
 
     return retval
-- 
2.10.2