proper filtering of dscanner

.travis.yml

@@ -5,12 +5,16 @@ d: dmd-2.071.0
 install:
  - wget "https://raw.githubusercontent.com/dlang/dmd/master/src/checkwhitespace.d" -O ../checkwhitespace.d
  - git clone https://github.com/Hackerpilot/Dscanner
- - (cd Dscanner && git checkout tags/v0.4.0-alpha2)
+ - (cd Dscanner && git checkout tags/v0.4.0-alpha4)
  - (cd Dscanner && git submodule update --init --recursive)
- - (cd Dscanner && make githash debug)
+ # debug build is faster, but disable 'missing import' messages (missing core from druntime)
+ - (cd Dscanner && sed 's/dparse_verbose/StdLoggerDisableWarning/' -i makefile && make githash debug)
+ # avoid checking it's dscanner's directory
  - mv Dscanner/dsc .
  - rm -rf Dscanner
 script:
  - (cd .. && rdmd ./checkwhitespace.d $(find phobos -name '*.d'))
+ # enforce whitespace between statements
  - grep -E "(for|foreach|foreach_reverse|if|while)\(" $(find . -name '*.d'); test $? -eq 1
- - dscanResult=$(./dscanner --config .dscanner.ini --styleCheck std etc 2> /dev/null | grep -vE "(Empty declaration|Primary expression expected)") ; if [ -z "${dscanResult}" ] ; then echo "No warnings found" ; else echo $dscanResult && $(exit 1); fi
+ # at the moment libdparse has problems to parse some modules (->excludes)
+ - ./dsc --config .dscanner.ini --styleCheck $(find etc std -type f -name '*.d' | grep -vE 'std/traits.d|std/typecons.d|std/conv.d') -I.