A script to clean obsolete sstate cache files

There would be many obsolete cache files in the SSTATE_DIR after several
builds, this script can remove the obsolete one for a pkg, only leave
the up to date one.

Here is the help text:

sstate-cache-management.sh <OPTION>

Options:
  --help, -h
        Display this help and exit.

  --cache-dir=<sstate cache dir>
        Specify sstate cache directory, will use the environment
        variable SSTATE_CACHE_DIR if it is not specified.

  --remove-duplicated
        Remove the duplicated sstate cache files of one package, only
        the newest one would be kept.

[YOCTO #1682]

Signed-off-by: Robert Yang <liezhi.yang@windriver.com>

1 files changed, 135 insertions, 0 deletions

diff --git a/scripts/sstate-cache-management.sh b/scripts/sstate-cache-management.sh
new file mode 100755
index 0000000000..d0e3abc820
--- /dev/null
+++ b/scripts/sstate-cache-management.sh
@@ -0,0 +1,135 @@
+#!/bin/bash
+
+#  Copyright (c) 2012 Wind River Systems, Inc.
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License version 2 as
+# published by the Free Software Foundation.
+#
+# This program 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 program; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+#
+
+usage () {
+  cat << EOF
+Welcome to sstate cache management utilities.
+sstate-cache-management.sh <OPTION>
+
+Options:
+  --help, -h
+        Display this help and exit.
+
+  --cache-dir=<sstate cache dir>
+        Specify sstate cache directory, will use the environment
+        variable SSTATE_CACHE_DIR if it is not specified.
+
+  --remove-duplicated
+        Remove the duplicated sstate cache files of one package, only
+        the newest one would be kept.
+
+EOF
+}
+
+if [ $# -lt 1 ]; then
+  usage
+  exit 0
+fi
+
+# Print error information and exit.
+echo_error () {
+  echo "ERROR: $1" >&2
+  exit 1
+}
+
+# Remove the duplicated cache files for the pkg, keep the newest one
+remove_duplicated () {
+  local all_suffixes="$1"
+  local ava_archs="$2"
+  local total_deleted=0
+  for suffix in $all_suffixes; do
+      local deleted=0
+      echo -n "Removing the sstate-xxx_$suffix.tgz ... "
+      # sed twice to avoid the greedy match
+      file_names=`for arch in $ava_archs; do
+          ls sstate-*-$arch-*_$suffix.tgz 2>/dev/null | \
+              sed -e 's/\(.*\)-'"$arch"'-.*/\1/' \
+              -e 's/\(.*\)-'"$arch"'-.*/\1/'
+      done | sort -u`
+
+      for fn in $file_names; do
+          for arch in $ava_archs; do
+              ls $fn-$arch-*_$suffix.tgz 2>/dev/null >>/tmp/$fn
+          done
+          # Also delete the .siginfo file
+          to_del=$(ls -t $(cat /tmp/$fn) | sed -n '1!p' | sed -e 'p' -e 's/$/.siginfo/')
+          rm -f $to_del
+          let deleted=$deleted+`echo $to_del | wc -w`
+          rm -f /tmp/$fn
+      done
+      echo "($deleted files)"
+      let total_deleted=$total_deleted+$deleted
+  done
+  echo "$total_deleted files have been removed"
+}
+
+# Parse arguments
+while [ -n "$1" ]; do
+  case $1 in
+    --cache-dir=*)
+      cache_dir=`echo $1 | sed -e 's#^--cache-dir=##' -e 's#/*$##' | xargs readlink -f`
+      [ -d "$cache_dir" ] || echo_error "Invalid argument to --cache-dir"
+      shift
+        ;;
+    --remove-duplicated)
+      rm_duplicated="yes"
+      shift
+        ;;
+    --help|-h)
+      usage
+      exit 0
+        ;;
+    *)
+        echo "Invalid arguments $*"
+        echo_error "Try 'sstate-cache-management.sh -h' for more information."
+        ;;
+  esac
+done
+
+# sstate cache directory, use environment variable SSTATE_CACHE_DIR
+# if it was not specified, otherwise, error.
+[ -n "$cache_dir" ] || cache_dir=$SSTATE_CACHE_DIR
+[ -d "$cache_dir" ] || echo_error "Invalid cache directory \"$cache_dir\""
+
+cache_dir=`readlink -f $cache_dir`
+
+topdir=$(dirname $(dirname $(readlink -f $0)))
+tunedir=$topdir/meta/conf/machine/include
+[ -d $tunedir ] || echo_error "Can't find the tune directory"
+
+# Use the "_" to substitute "-", e.g., x86-64 to x86_64
+all_archs=`grep -r DEFAULTTUNE $tunedir | \
+    sed -e 's/.*\"\(.*\)\"/\1/' -e 's/-/_/g' | sort -u`
+# Add the qemu archs
+all_archs="$all_archs qemuarm qemux86 qemumips qemuppc"
+
+all_suffixes="deploy-rpm deploy-ipk deploy-deb deploy package populate-lic populate-sysroot"
+
+cd $cache_dir
+
+echo "Figuring out the archs in the sstate cache dir ..."
+for arch in $all_archs; do
+    ls | grep -q -w $arch
+    [ $? -eq 0 ] && ava_archs="$ava_archs $arch"
+done
+echo "The following archs have been found in the sstate cache dir:"
+echo $ava_archs
+
+if [ "$rm_duplicated" == "yes" -a -n "$ava_archs" ]; then
+    remove_duplicated "$all_suffixes" "$ava_archs"
+fi