Use folds to improve readability of Travis logs

.travis.yml

@@ -13,9 +13,12 @@ addons:
 script:
   - set -e
   - export CXX="g++-4.8" CC="gcc-4.8" GCOV="gcov-4.8"
+  - echo -e "travis_fold:start:host_tests"
   - pushd $TRAVIS_BUILD_DIR/tests/host
   - make
   - make clean-objects
+  - echo -e "travis_fold:end:host_tests"
+  - echo -e "travis_fold:start:sketch_test_env_prepare"
   - popd
   - wget -O arduino.tar.xz https://www.arduino.cc/download.php?f=/arduino-nightly-linux64.tar.xz
   - tar xf arduino.tar.xz
@@ -31,7 +34,13 @@ script:
   - cd $TRAVIS_BUILD_DIR
   - source tests/common.sh
   - install_libraries
+  - echo -e "travis_fold:end:sketch_test_env_prepare"
+  - echo -e "travis_fold:start:sketch_test"
   - build_sketches $HOME/arduino_ide $TRAVIS_BUILD_DIR "-l $HOME/Arduino/libraries"
+  - echo -e "travis_fold:end:sketch_test"
+  - echo -e "travis_fold:start:size_report"
+  - cat size.log
+  - echo -e "travis_fold:end:size_report"
 
 after_success:
     - pushd $TRAVIS_BUILD_DIR/tests/host

tests/common.sh

@@ -72,9 +72,6 @@ function build_sketches()
         print_size_info $build_dir/*.elf >>size.log
     done
     set -e
-    echo -e "\n ------------ Size report ------------ \n"
-    cat size.log
-    echo -e "\n ------------------------------------- \n"
 }
 
 function install_libraries()