fetch2: Limit shown checksums to sha256

Currently bitbake will list many checksums for a recipe when none are
present, encouraging users to add them all to a recipe. We don't
need/want them all.

We used to show md5 and sha256 but given the concerns about md5,
switch to showing just sha256 going forward which seems like the
sensible one to standardise upon.

There will be no change to existing recipe functionality.

Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

1 files changed, 4 insertions, 1 deletions

diff --git a/lib/bb/fetch2/__init__.py b/lib/bb/fetch2/__init__.py
index b83347ad9..9734e2112 100644
--- a/lib/bb/fetch2/__init__.py
+++ b/lib/bb/fetch2/__init__.py
@@ -34,6 +34,7 @@ _checksum_cache = bb.checksum.FileChecksumCache()
 logger = logging.getLogger("BitBake.Fetcher")
 
 CHECKSUM_LIST = [ "md5", "sha256", "sha1", "sha384", "sha512" ]
+SHOWN_CHECKSUM_LIST = ["sha256"]
 
 class BBFetchException(Exception):
     """Class all fetch exceptions inherit from"""
@@ -580,7 +581,9 @@ def verify_checksum(ud, d, precomputed={}):
     checksum_dict = {ci["id"] : ci["data"] for ci in checksum_infos}
     checksum_event = {"%ssum" % ci["id"] : ci["data"] for ci in checksum_infos}
 
-    checksum_lines = ["SRC_URI[%s] = \"%s\"" % (ci["name"], ci["data"]) for ci in checksum_infos]
+    for ci in checksum_infos:
+        if ci["id"] in SHOWN_CHECKSUM_LIST:
+            checksum_lines = ["SRC_URI[%s] = \"%s\"" % (ci["name"], ci["data"])]
 
     # If no checksum has been provided
     if ud.method.recommends_checksum(ud) and all(ci["expected"] is None for ci in checksum_infos):