dpdk/SOURCES/set_config.sh
2021-09-09 16:11:22 +00:00

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#!/bin/bash
# Copyright (C) 2017, Red Hat, Inc.
#
# set_config.sh will copy a configuration from $1 to $2, in the process
# checking that the sha header for $1 matches the header in $2
source configlib.sh
if (( $# < 2 )); then
echo "$0: source dest [comment-marker]"
exit 1
fi
if [ ! -f "$1" ]; then
echo "Source file $1 must exist."
exit 1
fi
src_file=$1
shift
if [ ! -f "$1" ]; then
echo "Dest file $1 must exist."
exit 1
fi
dst_file=$1
shift
comment_sep=${1:-#}
export LANG=en_US.utf8
DEST_FILE_SHA=""
SRC_FILE_SHA=""
calc_sha DEST_FILE_SHA "$dst_file" "$comment_sep" || echo "Failed to calc sha"
retr_sha SRC_FILE_SHA "$src_file" "$comment_sep" || echo "Failed to retrieve sha"
if [ "$DEST_FILE_SHA" != "$SRC_FILE_SHA" ]; then
echo "ERROR: The requisite starting sha from $dst_file does not match the"
echo " specified sha in $src_file."
echo "[ $DEST_FILE_SHA ] vs [ $SRC_FILE_SHA ]"
exit 1
fi
mv "$dst_file" "$dst_file".OLD
cp "$src_file" "$dst_file"
echo "copied 1 config file."
exit 0