From 440d3482e21e147c39d965e104ab41d7241cbde8 Mon Sep 17 00:00:00 2001
From: Bill <bill@billserver.senders.io>
Date: Fri, 23 Apr 2021 21:34:59 -0400
Subject: Initial draft

---
 ssync | 41 +++++++++++++++++++++++++++++++++++++++++
 1 file changed, 41 insertions(+)
 create mode 100755 ssync

diff --git a/ssync b/ssync
new file mode 100755
index 0000000..5396be0
--- /dev/null
+++ b/ssync
@@ -0,0 +1,41 @@
+#!/usr/bin/env bash
+set -ex
+
+if [ $# -lt 3 ]; then
+  echo "Usage: ssync KEY_FILE REMOTE_DIR SRC_DIR"
+  exit 1
+fi
+
+KEY_FILE=$1
+REMOTE_DIR=$2
+SRC_DIR=$3
+
+LASTRAN_DIR=$HOME/.local/ssync
+LASTRAN_FILE=$LASTRAN_DIR/.lastran
+NEXT_RUN_DATE=$(date -Is)
+PREV_RUN_DATE=$(cat $HOME/.local/ssync/.lastran)
+
+echo "Failsafe - Running at: $NEXT_RUN_DATE - if failed to write use this timestamp in $LASTRAN_FILE"
+
+if [ ! -f $LASTRAN_FILE ]; then
+  mkdir -p $LASTRAN_DIR
+  echo $NEXT_RUN_DATE > $LASTRAN_FILE
+  echo "No run existed marking next run for files newer than: $NEXT_RUN_DATE"
+  exit 0;
+fi
+
+if [ $PREV_RUN_DATE == "" ]; then
+  echo $NEXT_RUN_DATE > $LASTRAN_FILE
+  echo "No run existed marking next run for files newer than: $NEXT_RUN_DATE"
+  exit 0;
+fi
+
+echo "Syncing files since: $PREV_RUN_DATE"
+
+rsync -e "ssh -i $KEY_FILE" \
+  -av \
+  --files-from=<(ssh -i $KEY_FILE billserver "find ${REMOTE_DIR} -newermt ${PREV_RUN_DATE} -exec realpath --relative-to ${REMOTE_DIR} {} \;") \
+  billserver:${REMOTE_DIR} ${SRC_DIR}
+
+echo $NEXT_RUN_DATE > $LASTRAN_FILE
+echo "Done syncing"
-- 
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