For CI - cache initial build tree and exclude some samples for Web-CI.

.travis.yml

@@ -459,6 +459,7 @@ cache:
   directories:
     - $HOME/cmake-3.9.2-Linux-x86_64/bin
     - $HOME/cmake-3.9.2-Linux-x86_64/share
+    - $HOME/initial-build-tree
 dist: trusty
 sudo: false
 addons: {apt: {packages: [doxygen, graphviz]}}
@@ -489,7 +490,7 @@ before_script:
   - export COMMIT_MESSAGE=$(git log --format=%B -n 1 $TRAVIS_COMMIT)
   - export TAG=$(git describe --exact-match $TRAVIS_COMMIT 2>/dev/null); if [[ $TAG =~ [[:digit:]]+\.[[:digit:]]+ ]]; then export RELEASE_TAG=$TAG; fi
   - if [[ $RELEASE_TAG ]] || (! [[ $TRAVIS_BRANCH =~ [^-]+-[^-]+-CI ]] && echo $COMMIT_MESSAGE |grep -cq '\[ci package\]'); then export PACKAGE_UPLOAD=1; fi
-  - if [[ "$URHO3D_LIB_TYPE" != "MODULE" ]] && (echo $COMMIT_MESSAGE |grep -cq '\[cache clear\]' || [[ ! -e $HOT ]]); then export URHO3D_SAMPLES=0; fi; touch $HOT
+  - if [[ "$URHO3D_LIB_TYPE" != "MODULE" ]] && (echo $COMMIT_MESSAGE |grep -cq '\[cache clear\]' || [[ ! -e $HOT ]]); then export URHO3D_SAMPLES=0; else export URHO3D_SAMPLES=1; fi; touch $HOT
   - if [[ ! $EMSCRIPTEN_WASM ]]; then export BINARYEN=binaryen-master-64bit; fi
   - git clone --depth 1 --branch $BRANCH https://github.com/urho3d/emscripten-sdk.git && emscripten-sdk/emsdk activate --build=Release sdk-${BRANCH}-64bit $BINARYEN && source emscripten-sdk/emsdk_env.sh
   - for compiler in $EMSCRIPTEN/{emcc,em++}; do touch -d "2017-01-01 00:00:00 +0800" $compiler; done
@@ -502,6 +503,17 @@ matrix:
   fast_finish: true
   include: [stage: housekeep]
 
+# Below samples are excluded from build due to build time constraint
+data:
+  excluded_sample:
+    '#4': &shortlisted
+      - 01_HelloWorld
+      - 02_HelloGUI
+      - 26_ConsoleInput
+      - 29_SoundSynthesis
+      - 38_SceneAndUILoad
+    '#5': *shortlisted
+
 ---
 
 branch: {name: OSX-CI, active: yes}

Rakefile

@@ -353,9 +353,9 @@ task :ci do
   # LuaJIT on MinGW build is not possible on Travis-CI with Ubuntu 14.04 LTS still as its GCC cross-compiler does not have native exception handling
   # LuaJIT on Web platform is not possible
   jit = (ENV['WIN32'] && ENV['TRAVIS']) || ENV['WEB'] ? '' : 'JIT=1 URHO3D_LUAJIT_AMALG='
-  system "cp -rp #{ENV['HOME']}/initial-build-tree #{ENV['build_tree']}" if ENV['OSX'] && ENV['CI'] && File.exist?("#{ENV['HOME']}/initial-build-tree/CMakeCache.txt")
+  system "cp -rp #{ENV['HOME']}/initial-build-tree #{ENV['build_tree']}" if (ENV['OSX'] || ENV['WEB']) && ENV['CI'] && File.exist?("#{ENV['HOME']}/initial-build-tree/CMakeCache.txt")
   system "rake cmake #{generator} URHO3D_LUA#{jit}=1 URHO3D_DATABASE_SQLITE=1 URHO3D_EXTRAS=1" or abort 'Failed to configure Urho3D library build'
-  system "cp -rp #{ENV['build_tree']}/* #{ENV['HOME']}/initial-build-tree 2>/dev/null && rm -rf #{ENV['HOME']}/initial-build-tree/{bin,include} 2>/dev/null" if ENV['OSX'] && ENV['CI']
+  system "cp -rp #{ENV['build_tree']}/* #{ENV['HOME']}/initial-build-tree 2>/dev/null && rm -rf #{ENV['HOME']}/initial-build-tree/{bin,include} 2>/dev/null" if (ENV['OSX'] || ENV['WEB']) && ENV['CI']
   next if timeup    # Measure the CMake configuration overhead
   if ENV['AVD'] && !ENV['PACKAGE_UPLOAD']   # Skip APK test run when packaging
     # Prepare a new AVD in another process to avoid busy waiting