Cleanup extract.sh

Add new option --report to create an HTML report (shows dependencies
at the end).

3rdparty/boost/extract.sh

@@ -10,38 +10,42 @@
 # Usage: extract.sh <path to new boost version>
 #
 
-if [ -z $1 ]
+HEADERS="\
-then
-    echo "Usage: extract.sh <path to new boost version>"
-    exit 1
-fi
-
-rm -rf needed
-mkdir needed
-
-bcp --boost=$1 \
   boost/any.hpp \
   boost/assert.hpp \
   boost/crc.hpp \
   boost/lexical_cast.hpp \
   boost/signals2/signal.hpp \
-	\
+  "
-	needed
 
+if [ -z $1 ]
+then
+    echo "Usage: extract.sh [--report] <path to new boost version>"
+    echo "Update our local boost copy"
+    echo "With --report, create a HTML report that contains in particular the dependencies"
+    exit 1
+fi
+
+if [ x$1 = x--report ]; then
+    bcp --boost=$2 --report $HEADERS report.html
+    exit 0;
+fi
+
+
+rm -rf needed
+mkdir needed
+
+bcp --boost=$1 $HEADERS needed/
 
 # we do not use the provided MSVC project files
 find needed -name '*.vcpro*' | xargs rm
 
+# remove old boost headers
 find boost -name \*.hpp | xargs rm
-#find libs  -name \*.cpp | xargs rm
 
+# copy new headers
 cp -vR needed/boost .
-#cp -vR needed/libs .
 
 rm -rf needed
 
-# found by bcp but not needed by us
-rm -rf boost/typeof
-rm -rf libs/config
-rm -rf libs/smart_ptr