[bitbake-devel][PATCH V2 1/5] fetch2/git.py: add filter_regex parameter to latest_versionstring

[Qi.Chen@windriver.com]

From: Chen Qi <Qi.Chen@windriver.com>

We want to be able to do stable version upgrade for recipes. For
example, 1.0.0 -> 1.0.1 instead of 1.0.0 -> 1.1.0.

To to this, we need an extra paramter to latest_versionstring
so that we are able to filter out the versions we need. Using regex
has the advantage of adapting to different version schemes.

Signed-off-by: Chen Qi <Qi.Chen@windriver.com>
---
 lib/bb/fetch2/git.py | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/lib/bb/fetch2/git.py b/lib/bb/fetch2/git.py
index 10eb63b20..a3a26a46c 100644
--- a/lib/bb/fetch2/git.py
+++ b/lib/bb/fetch2/git.py
@@ -976,7 +976,7 @@ class Git(FetchMethod):
         raise bb.fetch2.FetchError("Unable to resolve '%s' in upstream git repository in git ls-remote output for %s" % \
             (ud.unresolvedrev, ud.host+ud.path))
 
-    def latest_versionstring(self, ud, d):
+    def latest_versionstring(self, ud, d, filter_regex=None):
         """
         Compute the latest release name like "x.y.x" in "x.y.x+gitHASH"
         by searching through the tags output of ls-remote, comparing
@@ -1016,6 +1016,10 @@ class Git(FetchMethod):
 
             pver = m.group('pver').replace("_", ".")
 
+            if filter_regex:
+                if not re.match(filter_regex, pver):
+                    continue
+
             if verstring and bb.utils.vercmp(("0", pver, ""), ("0", verstring, "")) < 0:
                 continue
 
-- 
2.34.1