From e0ca054f3edf89caa1560c44bd5e8fc08107edf5 Mon Sep 17 00:00:00 2001
From: hkbakke <hkbakke@users.noreply.github.com>
Date: Thu, 22 Dec 2016 17:59:19 +0100
Subject: [PATCH] Add initial source

---
 src/borgwrapper.sh    | 67 +++++++++++++++++++++++++++++++++++++++++++
 src/config.sh.example | 20 +++++++++++++
 2 files changed, 87 insertions(+)
 create mode 100755 src/borgwrapper.sh
 create mode 100644 src/config.sh.example

diff --git a/src/borgwrapper.sh b/src/borgwrapper.sh
new file mode 100755
index 0000000..5f0d2a7
--- /dev/null
+++ b/src/borgwrapper.sh
@@ -0,0 +1,67 @@
+#!/bin/bash
+
+MODE="$1"
+CONFIG="/etc/borgwrapper/config.sh"
+
+
+print_usage () {
+	echo "Usage: borgwrapper.sh MODE"
+    echo ""
+    echo "arguments:"
+    echo "    MODE          backup|verify|unlock"
+}
+
+borg_backup () {
+	EXCLUDE_CMD=()
+
+	for EXCLUDE in ${EXCLUDES[@]}; do
+		EXCLUDE_CMD+=( --exclude "$EXCLUDE" )
+	done
+
+    # Backup all of /home and /var/www except a few
+    # excluded directories
+    $BORG create --info --stats \
+        --compression lz4 \
+        --numeric-owner \
+        "${REPO}"::"$(hostname)-$(date -u +'%Y%m%dT%H%M%SZ')" \
+        ${PATHS[@]} \
+        ${EXCLUDE_CMD[@]}
+}
+
+borg_prune () {
+    # Use the `prune` subcommand to maintain 7 daily, 4 weekly and 6 monthly
+    # archives of THIS machine. --prefix `hostname`- is very important to
+    # limit prune's operation to this machine's archives and not apply to
+    # other machine's archives also.
+    $BORG prune --info --stats --list \
+        --prefix "$(hostname)-" \
+        --keep-daily=$KEEP_DAILY \
+        --keep-weekly=$KEEP_WEEKLY \
+        --keep-monthly=$KEEP_MONTHLY \
+        --keep-yearly=$KEEP_YEARLY \
+        "${REPO}"
+}
+
+borg_verify () {
+    $BORG check --show-rc "${REPO}"
+}
+
+borg_unlock () {
+    # Use if borg backup is not shut down cleanly
+    $BORG break-lock "${REPO}"
+}
+
+
+source "$CONFIG" || exit 1
+export BORG_PASSPHRASE
+
+if [[ $MODE == "backup" ]]; then
+    borg_backup
+    borg_prune
+elif [[ $MODE == "verify" ]]; then
+    borg_verify
+elif [[ $MODE == "unlock" ]]; then
+    borg_unlock
+else
+    print_usage
+fi
diff --git a/src/config.sh.example b/src/config.sh.example
new file mode 100644
index 0000000..8529101
--- /dev/null
+++ b/src/config.sh.example
@@ -0,0 +1,20 @@
+BORG="/usr/bin/borg"
+REPO="user@reposerver:/srv/borg/hostname"
+BORG_PASSPHRASE="longandcomplexpassphrase"
+PATHS=(
+    "/etc"
+    "/home"
+    "/root"
+    "/srv"
+    "/usr/local"
+    "/var/spool/cron/crontabs"
+)
+EXCLUDES=(
+    "sh:/home/**/.cache"
+    "/root/.cache"
+    "*.pyc"
+)
+KEEP_DAILY=31
+KEEP_WEEKLY=0
+KEEP_MONTHLY=24
+KEEP_YEARLY=5