1 #!/system/bin/sh 2 # 3 # Copyright (C) 2016 The Android Open Source Project 4 # 5 # Licensed under the Apache License, Version 2.0 (the "License"); 6 # you may not use this file except in compliance with the License. 7 # You may obtain a copy of the License at 8 # 9 # http://www.apache.org/licenses/LICENSE-2.0 10 # 11 # Unless required by applicable law or agreed to in writing, software 12 # distributed under the License is distributed on an "AS IS" BASIS, 13 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 14 # See the License for the specific language governing permissions and 15 # limitations under the License. 16 17 # create files with 644 (global read) permissions. 18 umask 022 19 20 # Helper function to copy files 21 function do_copy() { 22 odex_file=$1 23 dest_name=$2 24 # Move to a temporary file so we can do a rename and have the preopted file 25 # appear atomically in the filesystem. 26 temp_dest_name=${dest_name}.tmp 27 if ! cp ${odex_file} ${temp_dest_name} ; then 28 log -p w -t cppreopts "Unable to copy odex file ${odex_file} to ${temp_dest_name}!" 29 else 30 log -p i -t cppreopts "Copied odex file from ${odex_file} to ${temp_dest_name}" 31 sync 32 if ! mv ${temp_dest_name} ${dest_name} ; then 33 log -p w -t cppreopts "Unable to rename temporary odex file from ${temp_dest_name} to ${dest_name}" 34 else 35 log -p i -t cppreopts "Renamed temporary odex file from ${temp_dest_name} to ${dest_name}" 36 fi 37 fi 38 } 39 40 if [ $# -eq 1 ]; then 41 # Where the system_b is mounted that contains the preopt'd files 42 mountpoint=$1 43 44 if ! test -f ${mountpoint}/system-other-odex-marker ; then 45 log -p i -t cppreopts "system_other partition does not appear have been built to contain preopted files." 46 exit 1 47 fi 48 49 log -p i -t cppreopts "cppreopts from ${mountpoint}" 50 # For each odex file do the copy task 51 # NOTE: this implementation will break in any path with spaces to favor 52 # background copy tasks 53 for odex_file in $(find ${mountpoint} -type f -name "*.odex"); do 54 real_odex_name=${odex_file/${mountpoint}/\/system} 55 dest_name=$(preopt2cachename ${real_odex_name}) 56 if ! test $? -eq 0 ; then 57 log -p i -t cppreopts "Unable to figure out destination for ${odex_file}" 58 continue 59 fi 60 # Copy files in background to speed things up 61 do_copy ${odex_file} ${dest_name} & 62 done 63 # Wait for jobs to finish 64 wait 65 exit 0 66 else 67 log -p e -t cppreopts "Usage: cppreopts <preopts-mount-point>" 68 exit 1 69 fi 70
