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72 lines
2.5 KiB
72 lines
2.5 KiB
#!/system/bin/sh
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#
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# Copyright (C) 2016 The Android Open Source Project
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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# create files with 644 (global read) permissions.
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umask 022
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# Helper function to copy files
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function do_copy() {
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source_file=$1
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dest_name=$2
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# Move to a temporary file so we can do a rename and have the preopted file
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# appear atomically in the filesystem.
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temp_dest_name=${dest_name}.tmp
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if ! cp ${source_file} ${temp_dest_name} ; then
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log -p w -t cppreopts "Unable to copy file ${source_file} to ${temp_dest_name}!"
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else
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log -p i -t cppreopts "Copied file from ${source_file} to ${temp_dest_name}"
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fsync ${temp_dest_name}
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if ! mv ${temp_dest_name} ${dest_name} ; then
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log -p w -t cppreopts "Unable to rename temporary file from ${temp_dest_name} to ${dest_name}"
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rm ${temp_dest_name} || log -p w -t cppreopts "Unable to remove temporary file ${temp_dest_name}"
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else
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fsync ${dest_name}
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log -p i -t cppreopts "Renamed temporary file from ${temp_dest_name} to ${dest_name}"
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fi
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fi
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}
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if [ $# -eq 1 ]; then
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# Where the system_b is mounted that contains the preopt'd files
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mountpoint=$1
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if ! test -f ${mountpoint}/system-other-odex-marker ; then
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log -p i -t cppreopts "system_other partition does not appear to have been built to contain preopted files."
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exit 1
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fi
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log -p i -t cppreopts "cppreopts from ${mountpoint}"
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# For each odex and vdex file do the copy task
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# NOTE: this implementation will break in any path with spaces to favor
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# background copy tasks
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for file in $(find ${mountpoint} -type f -name "*.odex" -o -type f -name "*.vdex" -o -type f -name "*.art"); do
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real_name=${file/${mountpoint}/}
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dest_name=$(preopt2cachename ${real_name})
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if ! test $? -eq 0 ; then
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log -p i -t cppreopts "Unable to figure out destination for ${file}"
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continue
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fi
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# Copy files in background to speed things up
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do_copy ${file} ${dest_name} &
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done
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# Wait for jobs to finish
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wait
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exit 0
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else
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log -p e -t cppreopts "Usage: cppreopts <preopts-mount-point>"
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exit 1
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fi
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