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#!/bin/bash
#
# Name: check_unused_headers
# Purpose: checks all wxWidgets headers looking for headers not referenced anywhere
# Usage: run with --verbose for verbose output
# Copyright: (c) 2007 Francesco Montorsi
# Licence: wxWindows licence
################################################################################
if [[ "$1" = "-v" || "$1" = "--verbose" ]]; then
verbose=yes
else
verbose=no
fi
me=$(basename $0)
path=${0%%/$me} # path from which the script has been launched
current=$(pwd)
# the path where this script resides:
scriptPath=$current/$path
# other interesting wx paths
headerPath="$scriptPath/../../include"
srcPath="$scriptPath/../../src"
# get list of wx source and header filenames
# NOTE: these list won't contain the .svn backup copies of the real sources/headers
# NOTE2: we keep the size of these lists small avoiding to include the prefixes
# like e.g. ../../include so to not incurr in OS limits when passing
# them as arguments of commands
cd $headerPath
headerList=`find wx -name "*.h"`
cd $srcPath
srcList=`find . -name "*.cpp"`
unusedHeaders=0
function checkIfHeaderIsUsed
{
local headerToCheck="$1"
local found=no
if [[ $verbose = yes ]]; then
echo -n "checking if header: $headerToCheck is used... "
fi
# find the first occurrence of this header in wx sources and headers:
cd $headerPath
grep -m 1 "$headerToCheck" $headerList >/dev/null 2>&1
if [[ $? = 0 ]]; then found=yes; fi
cd $srcPath
grep -m 1 "$headerToCheck" $srcList >/dev/null 2>&1
if [[ $? = 0 ]]; then found=yes; fi
if [[ $found = no ]]; then
if [[ $verbose = yes ]]; then
echo "no, it's not!"
fi
# this header is not used anywhere...
echo "WARNING: unused header $headerToCheck"
((( unusedHeaders++ )))
else
if [[ $verbose = yes ]]; then
echo "yes, it is"
fi
fi
}
echo " This script will look for unused wxWidgets headers"
echo " Note that some headers maybe not referenced by wxWidgets sources/headers but still"
echo " be useful for user applications; others instead are simply old and forgotten."
echo
for header in $headerList; do
checkIfHeaderIsUsed $header
done
if [[ $unusedHeaders -gt 0 ]]; then
echo " => WARNING: found $unusedHeaders unused headers!"
else
echo " => All headers are referenced in either wxWidgets sources or in other headers"
fi
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