Initial commit

s3-synchronize.sh

@@ -0,0 +1,137 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+#=======================================#
+#-- S3 SYNCHRONIZE SCRIPT             --#
+#-- Author : NoxInmortus (Alban E.G.) --#
+#=======================================#
+
+## {{{ Global variables
+##------------------##
+## Global Variables ##
+##------------------##
+
+SUBJECT="s3-synchronize"
+VERSION="1.0.0 (18/03/2020)"
+USAGE="Usage: ${0} -hv \n
+-u : upload (local to remote) \n
+-d : download (remote to local) \n
+-l : local path to synchronize \n
+-r : remote path to synchronize (s3 url format) \n
+-c : s3cmd config file (mandatory)."
+HELP="S3 synchronize script through s3cmd (both directions available). s3cmd binary required."
+LOG="/var/log/${SUBJECT}.log"
+DATE=$(date '+%F-%Hh')
+## Global variables }}}
+## {{{ Script variables
+# SECONDS returns a count of the number of (whole) seconds the shell has been running.
+startTime=${SECONDS}
+
+# Used to check conflict
+u_arg=false
+d_arg=false
+## Script variables }}}
+
+## {{{ Option processing
+##-------------------##
+## Option processing ##
+##-------------------##
+
+# If there is no arguments display ${USAGE}
+if [ $# == 0 ] ; then
+    echo -e ${USAGE}
+    exit 1;
+fi
+
+while getopts ":vhudl:r:c:" optname
+  do
+    case "${optname}" in
+      "v")
+        echo "Version ${VERSION}"
+        exit 0;
+        ;;
+      "h")
+        echo -e ${HELP}
+        echo -e ${USAGE}
+        exit 0;
+        ;;
+      "u")
+        sync_way="upload"
+        u_arg=true
+        ;;
+      "d")
+        sync_way="download"
+        d_arg=true
+        ;;
+      "l")
+        LOCAL=${OPTARG}
+        ;;
+      "r")
+        REMOTE=${OPTARG}
+        ;;
+      "c")
+        CONFIG_FILE=${OPTARG}
+        ;;
+      "?")
+        echo "Unknown option ${OPTARG}"
+        exit 0;
+        ;;
+      ":")
+        echo "No argument value for option ${OPTARG}"
+        exit 0;
+        ;;
+      *)
+        echo "Unknown error while processing options"
+        exit 0;
+        ;;
+    esac
+  done
+
+shift $((${OPTIND} - 1))
+## Option processing }}}
+
+# -----------------------------------------------------------------
+#  SCRIPT LOGIC GOES HERE
+# -----------------------------------------------------------------
+
+## Sanity Checks
+if [[ -z ${LOCAL+x} ]]; then
+  echo "You need to define local directory (with -l option)."
+  exit 1
+elif [[ -z ${REMOTE+x} ]]; then
+  echo "You need to define remote directory (with -r option)."
+  exit 1
+elif [[ -z ${CONFIG_FILE+x} ]]; then
+  echo "You need to define s3cmd config file (with -c option)."
+  exit 1
+fi
+
+if [ ${u_arg} == ${d_arg} ]; then
+  echo "You cannot use -u (upload) and -d (download) options at the same time."
+  exit 1
+fi
+
+if [ ! -d ${LOCAL} ]; then
+  echo "Your local path is not a directory."
+  exit 1
+fi
+
+## Lockfile
+(flock -x 200 || exit 1
+
+if [ ${sync_way} == "upload" ]; then
+  s3cmd -c ${CONFIG_FILE} sync -v --stats --progress --stop-on-error --delete-removed ${LOCAL} ${REMOTE}
+elif [ ${sync_way} == "download" ]; then
+  s3cmd -c ${CONFIG_FILE} sync -v --stats --progress --stop-on-error ${REMOTE} ${LOCAL}
+  chmod 0700 ${LOCAL}
+else
+  echo "Error with sync_way variable."
+  exit 1
+fi
+
+elapsedTime=$((${SECONDS} - ${startTime}))
+echo "${SUBJECT} duration : $((${elapsedTime}/60)) min $((${elapsedTime}%60)) sec"
+
+)200>/var/lock/${SUBJECT}.lock
+
+exit 0