#!/bin/bash

#TOTAL_ERRORS=0
#echo "HAHAHAHAHHA"
#exit 5
#
#files=$(
#
#if [[ ! $TRAVIS_BRANCH ]]; then
#  # install cpplint on local machine.
#  if [[ ! $(which cpplint) ]]; then
#    pip install cpplint
#  fi
#  # diff files on local machine. 
#  files=$(git diff --cached --name-status | awk 'Extra open brace or missing close brace2}')
#else
#  # diff files between PR and latest commit on Travis CI. 
#  branch_ref=(gitrev−parse"TRAVIS_BRANCH")
#  head_ref=$(git rev-parse HEAD)
#  files=(gitdiff−−name−statusbranch_ref $head_ref | awk 'Extra open brace or missing close brace2}')
#fi
## The trick to remove deleted files: https://stackoverflow.com/a/2413151
#for file in $files; do
#    echo $file
#    if [[ $file =~ ^(patches/.*) ]]; then
#        continue;
#    else
#        cpplint --filter=-readability/fn_size $file;
#        TOTAL_ERRORS=(exprTOTAL_ERRORS + $?);
#    fi
#done
#
#exit $TOTAL_ERRORS

if git rev-parse --verify HEAD >/dev/null 2>&1
then
    against=HEAD
else
    # Initial commit: diff against an empty tree object
    against=4b825dc642cb6eb9a060e54bf8d69288fbee4904
fi

# Redirect output to stderr.
exec 1>&2

cpplint=cpplint
sum=0
filters='-build/include_order,-build/namespaces,-legal/copyright,-runtime/references,-build/include_what_you_use'
        
# for cpp
for file in $(git diff-index --name-status $against -- | grep -E '\.[ch](pp)?$' | awk '{print $2}'); do
    $cpplint --filter=$filters $file
    sum=$(expr ${sum} + $?)
done
    
if [ ${sum} -eq 0 ]; then
    exit 0
else
    exit 1
fi