[oe-commits] [openembedded-core] 20/27: cve-update-db-native: don't refresh more than once an hour

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rpurdie pushed a commit to branch master-next
in repository openembedded-core.

commit 7f6ffc51c5406aedb3d9c395d2cb2f2dd3f16e60
Author: Ross Burton <ross.burton at intel.com>
AuthorDate: Thu Nov 7 23:58:30 2019 +0000

    cve-update-db-native: don't refresh more than once an hour
    
    We already fetch the yearly CVE metadata and check that for updates before
    downloading the full data, but we can speed up CVE checking further by only
    checking the CVE metadata once an hour.
    
    Signed-off-by: Ross Burton <ross.burton at intel.com>
    Signed-off-by: Richard Purdie <richard.purdie at linuxfoundation.org>
---
 meta/recipes-core/meta/cve-update-db-native.bb | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/meta/recipes-core/meta/cve-update-db-native.bb b/meta/recipes-core/meta/cve-update-db-native.bb
index 2c427a5..19875a4 100644
--- a/meta/recipes-core/meta/cve-update-db-native.bb
+++ b/meta/recipes-core/meta/cve-update-db-native.bb
@@ -31,8 +31,16 @@ python do_populate_cve_db() {
     db_dir = os.path.join(d.getVar("DL_DIR"), 'CVE_CHECK')
     db_file = os.path.join(db_dir, 'nvdcve_1.0.db')
     json_tmpfile = os.path.join(db_dir, 'nvd.json.gz')
-    proxy = d.getVar("https_proxy")
 
+    # Don't refresh the database more than once an hour
+    try:
+        import time
+        if time.time() - os.path.getmtime(db_file) < (60*60):
+            return
+    except OSError:
+        pass
+
+    proxy = d.getVar("https_proxy")
     if proxy:
         # instantiate an opener but do not install it as the global
         # opener unless if we're really sure it's applicable for all

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