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docker-ce: integrity checking via file size

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This commit is contained in:
bigeagle 2017-08-21 15:09:37 +08:00
parent 449dcf57c6
commit 919a5d162c
1 changed files with 16 additions and 14 deletions
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28
docker-ce.sh
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@ -8,10 +8,7 @@ set -o pipefail
_here=`dirname $(realpath $0)`
GET_FILELIST="${_here}/helpers/docker-ce-filelist.py"
BASE_URL="${TUNASYNC_UPSTREAM_URL:-"https://download.docker.com/linux/"}"
TMP_DIR="${TUNASYNC_WORKING_DIR}/.tmp"
mkdir -p $TMP_DIR
BASE_URL="${TUNASYNC_UPSTREAM_URL:-"https://download.docker.com/linux/static/"}"
REMOTE_FILELIST="${TUNASYNC_WORKING_DIR}/.filelist.remote"
LOCAL_FILELIST="${TUNASYNC_WORKING_DIR}/.filelist.local"
@ -20,9 +17,6 @@ LOCAL_FILELIST="${TUNASYNC_WORKING_DIR}/.filelist.local"
function cleanup () {
echo "cleaning up"
[[ -d ${TMP_DIR} ]] && {
rm -rf $TMP_DIR
}
[[ -f $REMOTE_FILELIST ]] && rm $REMOTE_FILELIST
[[ -f $LOCAL_FILELIST ]] && rm $LOCAL_FILELIST
}
@ -30,20 +24,28 @@ function cleanup () {
trap cleanup EXIT
# download
$GET_FILELIST $BASE_URL | while read remote_url; do
while read remote_url; do
dst_rel_file=${remote_url#$BASE_URL}
dst_file="${TUNASYNC_WORKING_DIR}/${dst_rel_file}"
dst_tmp_file="${TMP_DIR}/$(basename ${dst_file})"
dst_dir=`dirname ${dst_file}`
echo "${dst_rel_file}" >> $REMOTE_FILELIST
echo "downloading ${remote_url}"
[[ -f ${dst_file} ]] && cp -a ${dst_file} ${dst_tmp_file} || mkdir -p `dirname ${dst_file}`
(cd ${TMP_DIR} && wget -q -N ${remote_url} && mv ${dst_tmp_file} ${dst_file})
done
if [[ -f ${dst_file} ]]; then
remote_filesize=`curl -sI ${remote_url} | grep -i '^content-length:' | awk '{print $2}' | tr -d '\n\r'`
local_filesize=`stat -c "%s" ${dst_file}`
if (( ${remote_filesize} != ${local_filesize} )); then
rm ${dst_file}
fi
else
mkdir -p $dst_dir
fi
rm -rf $TMP_DIR
(cd ${dst_dir} && wget -c -N -q ${remote_url} || rm ${dst_file})
done < <($GET_FILELIST $BASE_URL)
# remove old files
(cd ${TUNASYNC_WORKING_DIR}; find . -type f ) | sed 's+^\./++' > ${LOCAL_FILELIST}
comm <(sort $REMOTE_FILELIST) <(sort $LOCAL_FILELIST) -13 | while read file; do
file="${TUNASYNC_WORKING_DIR}/$file"