115 lines
3.6 KiB
Bash
115 lines
3.6 KiB
Bash
# bash
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#
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# Copyright (c) 2022 Wind River Systems, Inc.
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#
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# SPDX-License-Identifier: Apache-2.0
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#
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CHECKSUMS_FILENAME="StxChecksums"
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publish_file() {
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local filename="$1"
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local dst_dir="$2"
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local published_checksum_files_list_file="$3"
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mkdir -p "$dst_dir" || exit 1
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local basename
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basename="${filename##*/}"
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local dst_file
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dst_file="$dst_dir/$basename"
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local checksum
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checksum=$(sha256sum "$filename" | awk '{print $1}' ; check_pipe_status) || exit 1
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# find an existing file in $combined_checksums_file that we can
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# hardlink to
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local link_created
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link_created=$(
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cat "$published_checksum_files_list_file" | {
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while read checksum_file ; do
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local checksum_dir
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checksum_dir="${checksum_file%/*}"
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link_created=$(
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\grep "^$checksum " "$checksum_file" \
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| while read x_checksum x_basename x_size x_mtime x_device x_inode x_path ; do
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x_filename="$checksum_dir/$x_basename"
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if [[ ! -f "$x_filename" || -z "$x_basename" || -z "$x_size" || -z "$x_mtime" || -z "$x_device" || -z "$x_inode" || -z "$x_path" ]] ; then
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continue
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fi
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x_recheck_stat=$(stat --printf '%s %Y %d %i' "$x_filename") || continue
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#echo ">>> $x_recheck_stat $x_size $x_mtime $x_device $x_inode" >&2
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[[ "$x_recheck_stat" == "$x_size $x_mtime $x_device $x_inode" ]] || continue
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# try to link it
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if \ln -f "$x_filename" "$dst_file" 2>&1 ; then
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echo "LINK $dst_file" >&2
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echo "link_created"
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fi
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cat >/dev/null # read and discard remaining lines to avoid SIGPIPE
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exit 0
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done
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) || exit 1
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if [[ "$link_created" == "link_created" ]] ; then
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echo "link_created"
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cat >/dev/null # read and discard remaining lines to avoid SIGPIPE
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exit 0
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fi
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done
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}
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check_pipe_status || exit 1
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)
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check_pipe_status || exit 1
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# try to link source file to destination
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if [[ "$link_created" != "link_created" ]] ; then
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link_created=$(
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if \ln -f "$filename" "$dst_file" 2>&1 ; then
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echo "LINK $dst_file" >&2
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echo "link_created"
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fi
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) || exit 1
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fi
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# if all else fails, copy it
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if [[ "$link_created" != "link_created" ]] ; then
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\cp -f --preserve=mode,timestamps "$filename" "$dst_file" || exit 1
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echo "COPY $dst_file" >&2
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fi
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# output published file info + source path
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local -a stat
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local size device inode mtime
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stat=($(stat --printf '%s %Y %d %i' "$dst_file")) || exit 1
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size="${stat[0]}"
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mtime="${stat[1]}"
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device="${stat[2]}"
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inode="${stat[3]}"
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echo "$checksum $basename $size $mtime $device $inode $filename"
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}
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find_publish_dirs() {
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find "$PUBLISH_ROOT" -mindepth 1 -maxdepth 1 \
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-type d \
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-name '[0-9][0-9][0-9][0-9]*' \
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-not -name "$PUBLISH_TIMESTAMP"
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}
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find_checksum_files() {
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find_publish_dirs | while read dir ; do
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for subdir in "$@" ; do
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if [[ -d "$dir/$subdir" ]] ; then
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find "$dir/$subdir" -type f -name "$CHECKSUMS_FILENAME"
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fi
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done
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done
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check_pipe_status || exit 1
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}
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