[gnome-continuous-yocto/gnomeostree-3.28-rocko: 2507/8267] recipetool: create: fix error with git tree and no network

[Emmanuele Bassi <ebassi src gnome org>]

commit 541c54e3012e39b4c9a9997b3224434d444d9de2
Author: Paul Eggleton <paul eggleton linux intel com>
Date:   Mon Sep 19 08:08:07 2016 +1200

    recipetool: create: fix error with git tree and no network
    
    When creating a recipe for an existing local git clone, we attempt to
    use the fetcher to determine if it supports the SRCREV variable.
    Unfortunately running this code does a network check to get the latest
    revision as a direct result of us using '${AUTOREV}' as a default value.
    If you don't have a network connection this will of course fail. Rather
    than have this block creating the recipe, catch the exception and just
    guess from the URL.
    
    Ultimately this should probably be fixed in the fetcher but for now this
    will at least resolve the issue on this end.
    
    (From OE-Core rev: f7e43f931d7d6019a3b2509b2b2635978fbbae36)
    
    Signed-off-by: Paul Eggleton <paul eggleton linux intel com>
    Signed-off-by: Richard Purdie <richard purdie linuxfoundation org>

 scripts/lib/recipetool/create.py |   14 ++++++++++----
 1 files changed, 10 insertions(+), 4 deletions(-)
---
diff --git a/scripts/lib/recipetool/create.py b/scripts/lib/recipetool/create.py
index f7b0676..f8701d4 100644
--- a/scripts/lib/recipetool/create.py
+++ b/scripts/lib/recipetool/create.py
@@ -336,10 +336,16 @@ def supports_srcrev(uri):
     # odd interactions with the urldata cache which lead to errors
     localdata.setVar('SRCREV', '${AUTOREV}')
     bb.data.update_data(localdata)
-    fetcher = bb.fetch2.Fetch([uri], localdata)
-    urldata = fetcher.ud
-    for u in urldata:
-        if urldata[u].method.supports_srcrev():
+    try:
+        fetcher = bb.fetch2.Fetch([uri], localdata)
+        urldata = fetcher.ud
+        for u in urldata:
+            if urldata[u].method.supports_srcrev():
+                return True
+    except bb.fetch2.FetchError as e:
+        logger.debug('FetchError in supports_srcrev: %s' % str(e))
+        # Fall back to basic check
+        if uri.startswith(('git://', 'gitsm://')):
             return True
     return False