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58 lines
1.3 KiB
Bash
Executable File
58 lines
1.3 KiB
Bash
Executable File
#!/bin/sh
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#
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# This tool unpacks a full update package generated by make_full_update.sh
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# Author: Darin Fisher
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#
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# -----------------------------------------------------------------------------
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# By default just assume that these tools exist on our path
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MAR=${MAR:-mar}
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BZIP2=${BZIP2:-bzip2}
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# -----------------------------------------------------------------------------
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#
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print_usage() {
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echo "Usage: $(basename $0) [OPTIONS] ARCHIVE"
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}
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if [ $# = 0 ]; then
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print_usage
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exit 1
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fi
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if [ $1 = -h ]; then
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print_usage
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echo ""
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echo "The contents of ARCHIVE will be unpacked into the current directory."
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echo ""
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echo "Options:"
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echo " -h show this help text"
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echo ""
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exit 1
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fi
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# -----------------------------------------------------------------------------
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archive="$1"
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# Generate a list of all files in the archive.
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list=$($MAR -t "$archive" | cut -d' ' -f3)
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eval "files=($list)"
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# Extract the files, creating subdirectories. The resulting files are bzip2
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# compressed, so we need to walk the list of files, and decompress them.
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$MAR -x "$archive"
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num_files=${#files[*]}
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# Skip first "file" since it is actually the column header string "NAME" that
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# does not correspond to an actual file in the archive.
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for ((i=1; $i<$num_files; i=$i+1)); do
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f=${files[$i]}
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echo " decompressing $f"
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mv -f "$f" "$f.bz2"
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$BZIP2 -d "$f.bz2"
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done
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