1 files changed, 125 insertions, 0 deletions
diff --git a/bin/ncp/BACKUPS/nc-backup.sh b/bin/ncp/BACKUPS/nc-backup.sh
new file mode 100644
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+++ b/bin/ncp/BACKUPS/nc-backup.sh
@@ -0,0 +1,125 @@
+#!/bin/bash
+# Nextcloud backups
+#
+# Copyleft 2017 by Ignacio Nunez Hernanz <nacho _a_t_ ownyourbits _d_o_t_ com>
+# GPL licensed (see end of file) * Use at your own risk!
+#
+# More at https://ownyourbits.com/2017/02/13/nextcloud-ready-raspberry-pi-image/
+#
+
+install()
+{
+  cat > /usr/local/bin/ncp-backup <<'EOF'
+#!/bin/bash
+set -eE
+
+DESTDIR="${1:-/media/USBdrive/ncp-backups}"
+INCLUDEDATA="${2:-no}"
+COMPRESS="${3:-no}"
+BACKUPLIMIT="${4:-0}"
+
+DESTFILE="$DESTDIR"/nextcloud-bkp_$( date +"%Y%m%d_%s" ).tar 
+DBBACKUP=nextcloud-sqlbkp_$( date +"%Y%m%d" ).bak
+OCC="sudo -u www-data php /var/www/nextcloud/occ"
+
+DATADIR=$( $OCC config:system:get datadirectory ) || {
+  echo "Error reading data directory. Is NextCloud running and configured?";
+  exit 1;
+}
+
+cleanup(){ local RET=$?;                    rm -f "${DBBACKUP}"              ;[[ -f /.docker-image ]] && mv /data/nextcloud /data/app; $OCC maintenance:mode --off; exit $RET; }
+fail()   { local RET=$?; echo "Abort..."  ; rm -f "${DBBACKUP}" "${DESTFILE}";[[ -f /.docker-image ]] && mv /data/nextcloud /data/app; $OCC maintenance:mode --off; exit $RET; }
+trap cleanup EXIT
+trap fail INT TERM HUP ERR
+
+echo "check free space..." # allow at least ~500 MiB for backups without data
+mkdir -p "$DESTDIR"
+[[ "$INCLUDEDATA" == "yes" ]] && SIZE=$( du -s "$DATADIR" | awk '{ print $1 }' ) || SIZE=500000
+FREE=$( df    "$DESTDIR" | tail -1 | awk '{ print $4 }' )
+
+[ $SIZE -ge $FREE ] && { 
+  echo "free space check failed. Need $SIZE Bytes";
+  exit 1; 
+}
+
+# delete older backups
+[[ $BACKUPLIMIT != 0 ]] && {
+  NUMBKPS=$( ls "$DESTDIR"/nextcloud-bkp_* 2>/dev/null | wc -l )
+  [[ $NUMBKPS -ge $BACKUPLIMIT ]] && \
+    ls -t $DESTDIR/nextcloud-bkp_* | tail -$(( NUMBKPS - BACKUPLIMIT + 1 )) | while read -r f; do
+      echo "clean up old backup $f"
+      rm "$f"
+    done
+}
+
+# database
+$OCC maintenance:mode --on
+[[ -f /.docker-image ]] && mv /data/app /data/nextcloud && DATADIR=/data/nextcloud/data
+[[ -f /.docker-image ]] && BASEDIR=/data || BASEDIR=/var/www
+cd "$BASEDIR" || exit 1
+echo "backup database..."
+mysqldump -u root --single-transaction nextcloud > "$DBBACKUP"
+
+# files
+echo "backup base files..."
+mkdir -p "$DESTDIR"
+tar --exclude "nextcloud/data/*/files/*" \
+    --exclude "nextcloud/data/.opcache" \
+    --exclude "nextcloud/data/{access,error,nextcloud}.log" \
+    --exclude "nextcloud/data/access.log" \
+    --exclude "nextcloud/data/ncp-update-backups/" \
+    -cf "$DESTFILE" "$DBBACKUP" "nextcloud"/ \
+  || {
+        echo "error generating backup"
+        exit 1
+      }
+rm "$DBBACKUP"
+
+[[ "$INCLUDEDATA" == "yes" ]] && {
+  echo "backup data files..."
+  tar --exclude "data/.opcache" \
+      --exclude "data/{access,error,nextcloud}.log" \
+      --exclude "data/access.log" \
+      --exclude "data/ncp-update-backups/" \
+      -rf "$DESTFILE" -C "$DATADIR"/.. "$( basename "$DATADIR" )" \
+  || {
+        echo "error generating backup"
+        exit 1
+      }
+} 
+
+[[ "$COMPRESS" == "yes" ]] && {
+  echo "compressing backup file..."
+  tar -czf "${DESTFILE}.gz" -C "$( dirname "$DESTFILE" )" "$( basename "$DESTFILE" )"
+  rm "$DESTFILE"
+  DESTFILE="${DESTFILE}.gz"
+}
+chmod 600 "$DESTFILE"
+
+echo "backup $DESTFILE generated"
+EOF
+  chmod +x /usr/local/bin/ncp-backup
+}
+
+configure()
+{
+  ncp-backup "$DESTDIR" "$INCLUDEDATA" "$COMPRESS" "$BACKUPLIMIT"
+}
+
+# License
+#
+# This script is free software; you can redistribute it and/or modify it
+# under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# This script is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this script; if not, write to the
+# Free Software Foundation, Inc., 59 Temple Place, Suite 330,
+# Boston, MA  02111-1307  USA
+