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docker-ce: skipping download with curl

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This commit is contained in:
bigeagle 2017-08-21 15:32:44 +08:00
parent 919a5d162c
commit 9a938f8d83
1 changed files with 14 additions and 6 deletions
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20
docker-ce.sh
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@ -8,7 +8,7 @@ set -o pipefail
_here=`dirname $(realpath $0)`
GET_FILELIST="${_here}/helpers/docker-ce-filelist.py"
BASE_URL="${TUNASYNC_UPSTREAM_URL:-"https://download.docker.com/linux/static/"}"
BASE_URL="${TUNASYNC_UPSTREAM_URL:-"https://download.docker.com/"}"
REMOTE_FILELIST="${TUNASYNC_WORKING_DIR}/.filelist.remote"
LOCAL_FILELIST="${TUNASYNC_WORKING_DIR}/.filelist.local"
@ -31,18 +31,26 @@ while read remote_url; do
echo "${dst_rel_file}" >> $REMOTE_FILELIST
echo "downloading ${remote_url}"
if [[ -f ${dst_file} ]]; then
remote_filesize=`curl -sI ${remote_url} | grep -i '^content-length:' | awk '{print $2}' | tr -d '\n\r'`
remote_meta=`curl -sI ${remote_url}`
remote_filesize=`echo -e "$remote_meta" | grep -i '^content-length:' | awk '{print $2}' | tr -d '\n\r'`
remote_date=`echo -e "$remote_meta" | grep -i '^last-modified:' | sed 's/^last-modified: //I' | tr -d '\n\r'`
remote_date=`date --date="$remote_date" +%s`
local_filesize=`stat -c "%s" ${dst_file}`
if (( ${remote_filesize} != ${local_filesize} )); then
rm ${dst_file}
local_date=`stat -c "%Y" ${dst_file}`
if (( ${remote_filesize} == ${local_filesize} && ${remote_date} == ${local_date} )) ; then
echo "skipping ${dst_rel_file}"
continue
fi
rm $dst_file
else
mkdir -p $dst_dir
fi
(cd ${dst_dir} && wget -c -N -q ${remote_url} || rm ${dst_file})
echo "downloading ${remote_url}"
(cd ${dst_dir} && wget -N -q ${remote_url} || rm ${dst_file})
done < <($GET_FILELIST $BASE_URL)
# remove old files