gecko-dev/tools/update-packaging/unwrap_full_update.sh

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