1 files changed, 28 insertions, 7 deletions
diff --git a/download-missing-kernel-keys b/download-missing-kernel-keys
index 209a754..c0e5ae0 100755
--- a/download-missing-kernel-keys
+++ b/download-missing-kernel-keys
@@ -1,15 +1,36 @@
 #!/bin/bash
 
-signatures="$( \
+if [ $# -eq 1 ] && [[ "$1" == *".kernel.org/"* ]]
+then
+  curl "$1" | \
+    gpg --verify - "$0" 2>&1 | \
+    grep '^gpg: Signature made .* using \S\+ key ID [0-9A-F]\+$' | \
+    sed 's|^gpg: Signature made .* using \S\+ key ID \([0-9A-F]\+\)$|0x\1|'
+  exit 0
+fi
+
+[ $# -eq 1 ] && lvl=$1 || lvl=2
+
+signatures="$(
   curl 'https://kernel.org/' 2>/dev/null | \
     tr '"' '\n' | \
-    grep '\.sign$' | \
-    head -n1
+    grep '\.sign$'
 )"
 
-for s in ${signatures}
-do
-  curl "$s" 2> /dev/null | \
-    gpg --verify - "$0"
+keyIds=$(
+  echo "${signatures}" | \
+    parallel -j0 "$0" "{}" \; 2> /dev/null | \
+    sort -u
+)
 
+for ((i=0; i<$lvl; i++))
+do
+  keyIds=$(
+    gpg --list-sigs ${keyIds} | \
+      grep '^sig\s' | \
+      sed 's|^sig\s.\{8\}\s\([0-9A-F]\{8\}\)\s.*$|0x\1|' | \
+      sort -u
+  )
+  echo "${keyIds}" | \
+    xargs -n50 gpg --recv-keys
 done