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83 lines
1.9 KiB
83 lines
1.9 KiB
# --- SDE-COPYRIGHT-NOTE-BEGIN ---
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# This copyright note is auto-generated by ./scripts/Create-CopyPatch.
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#
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# Filename: lib/sde-download/validate.sh
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# Copyright (C) 2006 - 2011 The OpenSDE Project
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#
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# More information can be found in the files COPYING and README.
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; version 2 of the License. A copy of the
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# GNU General Public License can be found in the file COPYING.
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# --- SDE-COPYRIGHT-NOTE-END ---
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if [ $# -ne 3 ]; then
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echo "Usage: $0 <original> <ours> <checksum>"
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exit 2
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fi
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gzfile="$1"
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bzfile="$2"
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expected="$3"
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if [ ! -f "$gzfile" ]; then
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echo "File '$gzfile' not found."
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exit 1
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fi
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# extractor
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case "${gzfile##*.}" in
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bz2|tbz2|tbz)
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format=bzip2
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extractor=bunzip2 ;;
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gz|tgz) format=gzip
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extractor=gunzip ;;
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xz) format=xz
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extractor=unxz ;;
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tar) format=tar
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extractor=cat ;;
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Z) format=Z
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extractor=uncompress
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# gunzip may be an alternative for uncompress
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if ! type -p $uncompress 2>&1 > /dev/null; then
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extractor=gunzip
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fi ;;
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*) format=raw
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extractor=cat ;;
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esac
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echo -n "cksum-test ($format): $gzfile... "
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if [ "$bzfile" = "$gzfile" ]; then
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tmpfile=
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effective=$( $extractor < $gzfile | cksum - | cut -f1 -d' ' )
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else
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mkdir -p 'tmp/'
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tmpfile="tmp/down.$$.dat"
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effective=$( $extractor < $gzfile | tee "$tmpfile" | cksum - | cut -f1 -d' ' )
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fi
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case "$expected" in
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X) echo "Ignoring Checksum ($effective)." ;;
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0) echo "Missing Checksum ($effective)." ;;
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*) if [ "$effective" != "$expected" ]; then
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echo "Wrong Checksum!"
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echo "Moving to $gzfile.cksum-err ($effective)."
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mv "$gzfile" "$gzfile.cksum-err"
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[ -z "$tmpfile" ] || rm -f "$tmpfile"
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exit 1
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else
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echo "OK."
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fi
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esac
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if [ -n "$tmpfile" ]; then
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case "$format" in
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raw) mv -f "$tmpfile" "$bzfile"
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;;
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*) bzip2 < "$tmpfile" > "$bzfile"
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rm -f "$gzfile" "$tmpfile"
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;;
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esac
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fi
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