From e59cfa5a9891e6d6a0461948971100ee245fb173 Mon Sep 17 00:00:00 2001
From: Peter Palfrader <peter@palfrader.org>
Date: Wed, 4 Nov 2015 10:26:23 +0100
Subject: Only download ech key once

---
 get-signers | 16 +++++++++++++---
 1 file changed, 13 insertions(+), 3 deletions(-)

diff --git a/get-signers b/get-signers
index 1831686..e9ea32f 100755
--- a/get-signers
+++ b/get-signers
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
 
 usage()
 {
@@ -31,12 +31,22 @@ if [ "$#" -eq 0 ]; then
   exit 1
 fi
 
+tmpdir=`mktemp -d`
+trap "rm -rf '$tmpdir'" EXIT
+
 keys="$*"
 gpg --recv-keys $keys
 while [ "$depth" -gt 0 ]; do
-
   keys=$(gpg --with-colons --fast-list-mode --list-sigs $keys | awk -F ':' '$1 ~ /sig|rev/ {print $5}' | sort -u)
-  gpg --recv-keys $keys
+  recv=""
+  for k in $keys; do
+    if ! [ -e "$tmpdir/$k" ]; then
+      recv="$recv $k"
+      touch "$tmpdir/$k"
+    fi
+  done
+
+  gpg --recv-keys $recv
 
   depth=$((depth - 1))
 done
-- 
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