util/travis/lint.sh

   1 #! /bin/bash
   2 function perform_lint() {
   3         echo "Performing LINT..."
   4         if hash clang-format-3.9 2>/dev/null; then
   5                 CLANG_FORMAT=clang-format-3.9
   6         else
   7                 CLANG_FORMAT=clang-format
   8         fi
   9         echo "LINT: Using binary $CLANG_FORMAT"
  10         CLANG_FORMAT_WHITELIST="util/travis/clang-format-whitelist.txt"
  11
  12         files_to_lint="$(find src/ -name '*.cpp' -or -name '*.h')"
  13
  14         local errorcount=0
  15         local fail=0
  16         for f in ${files_to_lint}; do
  17                 d=$(diff -u "$f" <(${CLANG_FORMAT} "$f") || true)
  18
  19                 if ! [ -z "$d" ]; then
  20                         whitelisted=$(awk '$1 == "'$f'" { print 1 }' "$CLANG_FORMAT_WHITELIST")
  21
  22                         # If file is not whitelisted, mark a failure
  23                         if [ -z ${whitelisted} ]; then
  24                                 errorcount=$((errorcount+1))
  25
  26                                 printf "The file %s is not compliant with the coding style" "$f"
  27                                 if [ ${errorcount} -gt 50 ]; then
  28                                         printf "\nToo many errors encountered previously, this diff is hidden.\n"
  29                                 else
  30                                         printf ":\n%s\n" "$d"
  31                                 fi
  32
  33                                 fail=1
  34                         fi
  35                 fi
  36         done
  37
  38         if [ "$fail" = 1 ]; then
  39                 echo "LINT reports failure."
  40                 exit 1
  41         fi
  42
  43         echo "LINT OK"
  44 }
  45