From fb68e22bbf47a319c95a5fc740d0d6d5a3013ebc Mon Sep 17 00:00:00 2001
From: Brad Hards <bradh@frogmouth.net>
Date: Mon, 26 Dec 2016 12:04:02 +1100
Subject: [PATCH] [fix] Use UTC date reference to avoid repeating S3 downloads.

Resolves https://github.com/openvenues/libpostal/issues/143
---
 src/libpostal_data | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/libpostal_data b/src/libpostal_data
index 0d73d132..01361e45 100755
--- a/src/libpostal_data
+++ b/src/libpostal_data
@@ -115,8 +115,8 @@ download_file() {
             curl $url --retry 3 --retry-delay 2 -o $local_path
         fi
 
-        if date -d "@$(date -ur . +%s)" >/dev/null 2>&1; then
-            echo $(date -d "$(date -d "@$(date -ur $local_path +%s)") + 1 second") > $updated_path;
+        if date -ud "@$(date -ur . +%s)" >/dev/null 2>&1; then
+            echo $(date -ud "$(date -ud "@$(date -ur $local_path +%s)") + 1 second") > $updated_path;
         elif stat -f %Sm . >/dev/null 2>&1; then
             echo $(date -ur $(stat -f %m $local_path) -v+1S) > $updated_path;
         fi;