[gnome-continuous-yocto/gnomeostree-3.28-rocko: 7585/8267] bitbake: fetch2: add stub latest_versionstring to FetchMethod

[Emmanuele Bassi <ebassi src gnome org>]

commit 384d97663190535c512f4de3e4bdf093d0924ef7
Author: Ross Burton <ross burton intel com>
Date:   Thu Sep 7 10:24:24 2017 +0100

    bitbake: fetch2: add stub latest_versionstring to FetchMethod
    
    (Bitbake rev: c45453d1f6bc7bcecd84f58e2f7d93d6bd1e8499)
    
    Signed-off-by: Ross Burton <ross burton intel com>
    Signed-off-by: Richard Purdie <richard purdie linuxfoundation org>

 bitbake/lib/bb/fetch2/__init__.py |    8 ++++++++
 1 files changed, 8 insertions(+), 0 deletions(-)
---
diff --git a/bitbake/lib/bb/fetch2/__init__.py b/bitbake/lib/bb/fetch2/__init__.py
index 3eb0e4d..f70f1b5 100644
--- a/bitbake/lib/bb/fetch2/__init__.py
+++ b/bitbake/lib/bb/fetch2/__init__.py
@@ -1559,6 +1559,14 @@ class FetchMethod(object):
         key = self._revision_key(ud, d, name)
         return "%s-%s" % (key, d.getVar("PN") or "")
 
+    def latest_versionstring(self, ud, d):
+        """
+        Compute the latest release name like "x.y.x" in "x.y.x+gitHASH"
+        by searching through the tags output of ls-remote, comparing
+        versions and returning the highest match as a (version, revision) pair.
+        """
+        return ('', '')
+
 class Fetch(object):
     def __init__(self, urls, d, cache = True, localonly = False, connection_cache = None):
         if localonly and cache: