px4-firmware/nuttx/tools/indent.sh

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#!/bin/sh
############################################################################
# tools/indent.sh
#
# Copyright (C) 2008, 2010 Gregory Nutt. All rights reserved.
# Author: Gregory Nutt <gnutt@nuttx.org>
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
#
# 1. Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# 2. Redistributions in binary form must reproduce the above copyright
# notice, this list of conditions and the following disclaimer in
# the documentation and/or other materials provided with the
# distribution.
# 3. Neither the name NuttX nor the names of its contributors may be
# used to endorse or promote products derived from this software
# without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
# FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
# COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
# BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
# OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
# AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
# ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
# POSSIBILITY OF SUCH DAMAGE.
#
############################################################################
#
# This script uses the Linux 'indent' utility to re-format C source files
# to match the coding style that I use. It differs from my coding style in that
#
# - I normally put the trailing */ of a multi-line comment on a separate line,
# - I usually align things vertically (like '=' in assignments),
# - indent puts a bogus blank line at the top of the file,
# - I don't like the way it handles nested conditional compilation intermixed with code.
#
# Constants
options="-nbad -bap -bbb -nbbo -nbc -bl -bl2 -bls -nbs -cbi2 -ncdw -nce -ci2 -cli0 -cp40 -ncs -nbfda -nbfde -di1 -nfc1 -fca -i2 -l80 -lp -ppi2 -lps -npcs -pmt -nprs -npsl -saf -sai -sbi2 -saw -sc -sob -nss -nut"
usage="USAGE: $0 <in-file> <out-file>"
# Inputs
infile=$1
outfile=$2
# Verify inputs
if [ -z "$infile" ]; then
echo "Missing <in-file>"
echo $usage
exit 1
fi
if [ ! -r $infile ]; then
echo "Readable $infile does not exist"
exit 1
fi
if [ -z "$outfile" ]; then
echo "Missing <out-file>"
echo $usage
exit 1
fi
if [ -f $outfile ]; then
echo "Removing old $outfile"
rm $outfile || { echo "Failed to remove $outfile" ; exit 1 ; }
fi
# Perform the indentation
indent $options $infile -o $outfile