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55 lines
1.5 KiB
Bash
Executable File
55 lines
1.5 KiB
Bash
Executable File
#!/bin/bash
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# requires: wget, lftp, jq, python3.5, lxml, pyquery
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# set -x
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set -e
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set -u
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set -o pipefail
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_here=`dirname $(realpath $0)`
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GET_FILELIST="${_here}/helpers/docker-ce-filelist.py"
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BASE_URL="${TUNASYNC_UPSTREAM_URL:-"https://download.docker.com/linux/static/"}"
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REMOTE_FILELIST="${TUNASYNC_WORKING_DIR}/.filelist.remote"
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LOCAL_FILELIST="${TUNASYNC_WORKING_DIR}/.filelist.local"
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[[ -f $REMOTE_FILELIST ]] && rm $REMOTE_FILELIST
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[[ -f $LOCAL_FILELIST ]] && rm $LOCAL_FILELIST
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function cleanup () {
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echo "cleaning up"
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[[ -f $REMOTE_FILELIST ]] && rm $REMOTE_FILELIST
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[[ -f $LOCAL_FILELIST ]] && rm $LOCAL_FILELIST
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}
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trap cleanup EXIT
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# download
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while read remote_url; do
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dst_rel_file=${remote_url#$BASE_URL}
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dst_file="${TUNASYNC_WORKING_DIR}/${dst_rel_file}"
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dst_dir=`dirname ${dst_file}`
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echo "${dst_rel_file}" >> $REMOTE_FILELIST
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echo "downloading ${remote_url}"
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if [[ -f ${dst_file} ]]; then
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remote_filesize=`curl -sI ${remote_url} | grep -i '^content-length:' | awk '{print $2}' | tr -d '\n\r'`
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local_filesize=`stat -c "%s" ${dst_file}`
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if (( ${remote_filesize} != ${local_filesize} )); then
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rm ${dst_file}
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fi
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else
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mkdir -p $dst_dir
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fi
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(cd ${dst_dir} && wget -c -N -q ${remote_url} || rm ${dst_file})
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done < <($GET_FILELIST $BASE_URL)
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# remove old files
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(cd ${TUNASYNC_WORKING_DIR}; find . -type f ) | sed 's+^\./++' > ${LOCAL_FILELIST}
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comm <(sort $REMOTE_FILELIST) <(sort $LOCAL_FILELIST) -13 | while read file; do
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file="${TUNASYNC_WORKING_DIR}/$file"
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echo "deleting ${file}"
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[[ -f $file ]] && rm ${file}
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done
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