Allow to run server.sh from source directory

Running server.sh after cloning and building did not work without
also customizing paths and/or moving files around.

By referring to already existing default locations the out-of-the-box
experience should be a bit smoother.

In order to not affect existing installations and to retain support for
running released versions from http://brouter.de/brouter/revisions.html,
the old default paths are still checked.

.gitignore

@@ -1,3 +1,5 @@
+misc/segments4
+misc/customprofiles
 target/
 *.BAK
 .classpath

misc/scripts/standalone/server.sh

@@ -6,6 +6,26 @@ cd "$(dirname "$0")"
 
 # maxRunningTime is the request timeout in seconds, set to 0 to disable timeout
 JAVA_OPTS="-Xmx128M -Xms128M -Xmn8M -DmaxRunningTime=300"
-CLASSPATH=../brouter.jar
 
-java $JAVA_OPTS -cp $CLASSPATH btools.server.RouteServer ../segments4 ../profiles2 ../customprofiles 17777 1 $BINDADDRESS
+# If paths are unset, first search in locations matching the directory structure
+# as found in the official BRouter zip archive
+CLASSPATH=${CLASSPATH:-"../brouter.jar"}
+SEGMENTSPATH=${SEGMENTSPATH:-"../segments4"}
+PROFILESPATH=${PROFILESPATH:-"../profiles2"}
+CUSTOMPROFILESPATH=${CUSTOMPROFILESPATH:-"../customprofiles"}
+
+# Otherwise try to locate files inside the source checkout
+if [ ! -e "$CLASSPATH" ]; then
+    CLASSPATH="$(ls ../../../brouter-server/target/brouter-server-*jar-with-dependencies.jar | sort --reverse --version-sort | head --lines 1)"
+fi
+if [ ! -e "$SEGMENTSPATH" ]; then
+    SEGMENTSPATH="../../segments4"
+fi
+if [ ! -e "$PROFILESPATH" ]; then
+    PROFILESPATH="../../profiles2"
+fi
+if [ ! -e "$CUSTOMPROFILESPATH" ]; then
+    CUSTOMPROFILESPATH="../../customprofiles"
+fi
+
+java $JAVA_OPTS -cp $CLASSPATH btools.server.RouteServer "$SEGMENTSPATH" "$PROFILESPATH" "$CUSTOMPROFILESPATH" 17777 1 $BINDADDRESS