Add script to do sstate-cache cleanup

The script defaults to removing all files that are 7 days older
than the most recent file.

Task-number: QTBUG-53762
Change-Id: Icb05ba08ce32611ae55b9a7d4e7f8ce939fdb72d
Reviewed-by: Risto Avila <risto.avila@qt.io>
Reviewed-by: Mikko Gronoff <mikko.gronoff@qt.io>

1 files changed, 56 insertions, 0 deletions

diff --git a/scripts/sstate-cache-cleanup.sh b/scripts/sstate-cache-cleanup.sh
new file mode 100755
index 0000000..4eb6aff
--- /dev/null
+++ b/scripts/sstate-cache-cleanup.sh
@@ -0,0 +1,56 @@
+#!/bin/bash
+############################################################################
+##
+## Copyright (C) 2017 The Qt Company Ltd.
+## Contact: https://www.qt.io/licensing/
+##
+## This file is part of the Boot to Qt meta layer.
+##
+## $QT_BEGIN_LICENSE:GPL$
+## Commercial License Usage
+## Licensees holding valid commercial Qt licenses may use this file in
+## accordance with the commercial license agreement provided with the
+## Software or, alternatively, in accordance with the terms contained in
+## a written agreement between you and The Qt Company. For licensing terms
+## and conditions see https://www.qt.io/terms-conditions. For further
+## information use the contact form at https://www.qt.io/contact-us.
+##
+## GNU General Public License Usage
+## Alternatively, this file may be used under the terms of the GNU
+## General Public License version 3 or (at your option) any later version
+## approved by the KDE Free Qt Foundation. The licenses are as published by
+## the Free Software Foundation and appearing in the file LICENSE.GPL3
+## included in the packaging of this file. Please review the following
+## information to ensure the GNU General Public License requirements will
+## be met: https://www.gnu.org/licenses/gpl-3.0.html.
+##
+## $QT_END_LICENSE$
+##
+############################################################################
+
+set -e
+
+if [ $# -lt 1 ]; then
+    echo "Usage: $0 <sstate-cache-dir(s)>"
+    echo "Remove all old files from <sstate-cache-dir(s)>"
+    exit 1
+fi
+
+DAYS_TO_KEEP=7
+NOW=$(date +%s)
+
+for cachedir in $@; do
+
+  if [ ! -d $cachedir ]; then
+    echo "$cachedir: No such directory"
+    continue
+  fi
+
+  # find the most recently modified file's timestamp
+  LATEST=$(find $cachedir -type f -printf '%T@\n' | sort -n | tail -1 | cut -f 1 -d'.')
+  # calculate days
+  TIMEOUT=$(( ($NOW - $LATEST) / 3600 / 24 + $DAYS_TO_KEEP ))
+  # delete all files older
+  find ${cachedir} -type f -atime +${TIMEOUT} -delete
+
+done