cve-check: extract extending CVE_STATUS to library function

The same code for extending CVE_STATUS by CVE_CHECK_IGNORE and
CVE_STATUS_GROUPS is used on multiple places.
Create a library funtion to have the code on single place and ready for
reuse by additional classes.

(From OE-Core rev: 45e18f4270d084d81c21b1e5a4a601ce975d8a77)

Signed-off-by: Peter Marko <peter.marko@siemens.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/classes/cve-check.bbclass

@@ -104,21 +104,8 @@ CVE_CHECK_LAYER_INCLUDELIST ??= ""
 CVE_VERSION_SUFFIX ??= ""
 
 python () {
-    # Fallback all CVEs from CVE_CHECK_IGNORE to CVE_STATUS
-    cve_check_ignore = d.getVar("CVE_CHECK_IGNORE")
-    if cve_check_ignore:
-        bb.warn("CVE_CHECK_IGNORE is deprecated in favor of CVE_STATUS")
-        for cve in (d.getVar("CVE_CHECK_IGNORE") or "").split():
-            d.setVarFlag("CVE_STATUS", cve, "ignored")
-
-    # Process CVE_STATUS_GROUPS to set multiple statuses and optional detail or description at once
-    for cve_status_group in (d.getVar("CVE_STATUS_GROUPS") or "").split():
-        cve_group = d.getVar(cve_status_group)
-        if cve_group is not None:
-            for cve in cve_group.split():
-                d.setVarFlag("CVE_STATUS", cve, d.getVarFlag(cve_status_group, "status"))
-        else:
-            bb.warn("CVE_STATUS_GROUPS contains undefined variable %s" % cve_status_group)
+    from oe.cve_check import extend_cve_status
+    extend_cve_status(d)
 
     nvd_database_type = d.getVar("NVD_DB_VERSION")
     if nvd_database_type not in ("NVD1", "NVD2", "FKIE"):

meta/classes/vex.bbclass

@@ -76,21 +76,8 @@ python () {
     if bb.data.inherits_class("cve-check", d):
         raise bb.parse.SkipRecipe("Skipping recipe: found incompatible combination of cve-check and vex enabled at the same time.")
 
-    # Fallback all CVEs from CVE_CHECK_IGNORE to CVE_STATUS
-    cve_check_ignore = d.getVar("CVE_CHECK_IGNORE")
-    if cve_check_ignore:
-        bb.warn("CVE_CHECK_IGNORE is deprecated in favor of CVE_STATUS")
-        for cve in (d.getVar("CVE_CHECK_IGNORE") or "").split():
-            d.setVarFlag("CVE_STATUS", cve, "ignored")
-
-    # Process CVE_STATUS_GROUPS to set multiple statuses and optional detail or description at once
-    for cve_status_group in (d.getVar("CVE_STATUS_GROUPS") or "").split():
-        cve_group = d.getVar(cve_status_group)
-        if cve_group is not None:
-            for cve in cve_group.split():
-                d.setVarFlag("CVE_STATUS", cve, d.getVarFlag(cve_status_group, "status"))
-        else:
-            bb.warn("CVE_STATUS_GROUPS contains undefined variable %s" % cve_status_group)
+    from oe.cve_check import extend_cve_status
+    extend_cve_status(d)
 }
 
 def generate_json_report(d, out_path, link_path):

meta/lib/oe/cve_check.py

@@ -354,3 +354,25 @@ def has_cve_product_match(detailed_status, products):
 
     #if no match, return False
     return False
+
+def extend_cve_status(d):
+    # do this only once in case multiple classes use this
+    if d.getVar("CVE_STATUS_EXTENDED"):
+        return
+    d.setVar("CVE_STATUS_EXTENDED", "1")
+
+    # Fallback all CVEs from CVE_CHECK_IGNORE to CVE_STATUS
+    cve_check_ignore = d.getVar("CVE_CHECK_IGNORE")
+    if cve_check_ignore:
+        bb.warn("CVE_CHECK_IGNORE is deprecated in favor of CVE_STATUS")
+        for cve in (d.getVar("CVE_CHECK_IGNORE") or "").split():
+            d.setVarFlag("CVE_STATUS", cve, "ignored")
+
+    # Process CVE_STATUS_GROUPS to set multiple statuses and optional detail or description at once
+    for cve_status_group in (d.getVar("CVE_STATUS_GROUPS") or "").split():
+        cve_group = d.getVar(cve_status_group)
+        if cve_group is not None:
+            for cve in cve_group.split():
+                d.setVarFlag("CVE_STATUS", cve, d.getVarFlag(cve_status_group, "status"))
+        else:
+            bb.warn("CVE_STATUS_GROUPS contains undefined variable %s" % cve_status_group)