travis: exit on failure for anything related to building

script/cibuild.sh

@@ -8,14 +8,9 @@ export GITTEST_REMOTE_URL="git://localhost/test.git"
 
 mkdir _build
 cd _build
-cmake .. -DCMAKE_INSTALL_PREFIX=../_install $OPTIONS
-cmake --build . --target install
-ctest -V .
-ecode=$?
-
-if [ $ecode -ne 0 ]; then
-    exit $ecode
-fi
+cmake .. -DCMAKE_INSTALL_PREFIX=../_install $OPTIONS || exit $?
+cmake --build . --target install || exit $?
+ctest -V . || exit $?
 
 # Now that we've tested the raw git protocol, let's set up ssh to we
 # can do the push tests over it