add scripts for build assets automatically

Change-Id: I7d67095d8547e979ca330d19728a07af8936a53c
Signed-off-by: Jing Gong <jgong@rbcon.com>
Reviewed-on: http://reviews.cloudfoundry.org/7479
Tested-by: CI Master <cf-ci@rbcon.com>
Reviewed-by: Pin Xie <pxie@vmware.com>

tools/scripts/build_assets.sh

@@ -0,0 +1,101 @@
+#!/bin/bash
+############################################################
+### README
+### set crontab
+### */10 * * * *
+### build assets every 10 minutes
+###########################################################
+
+BUILD_HOME=/home/cfqa/cf/test
+ASSETS_REPO=https://github.com/cloudfoundry/vcap-yeti/
+GIT=git
+
+echo "------------------------------------------------------"
+echo "- build assets begin"
+echo "- build home: $BUILD_HOME"
+echo "------------------------------------------------------"
+#### create remote repo folder if not exists
+if [ ! -d $BUILD_HOME/remote ];then
+  mkdir -p $BUILD_HOME/remote
+fi
+if [ ! -d $BUILD_HOME/local ];then
+  mkdir -p $BUILD_HOME/local
+fi
+
+
+echo "------------------------------------------------------"
+rm -rf $BUILD_HOME/remote/vcap-yeti
+
+echo "- git clone $ASSETS_REPO"
+### download code from remote repo.
+cd $BUILD_HOME/remote
+git clone $ASSETS_REPO
+echo "-----------------------------------------------------"
+if [ $? -eq 0 ];then
+  echo "- git clone succeed"
+  echo "-----------------------------------------------------"
+  cd $BUILD_HOME/remote/vcap-yeti
+  git submodule update --init
+  cd $BUILD_HOME/remote/vcap-yeti/assets
+  REMOTE_COMMIT=(`git log | head -1`)
+  REMOTE_COMMIT_ID=${REMOTE_COMMIT[1]}
+  echo "-----------------------------------------------------"
+  echo "- remote commit id: $REMOTE_COMMIT_ID"
+  echo "------------------------------------------------------"
+fi
+
+
+if [ -d $BUILD_HOME/local/vcap-yeti ];then
+  cd $BUILD_HOME/local/vcap-yeti/assets
+  LOCAL_COMMIT=(`git log | head -1`)
+  LOCAL_COMMIT_ID=${LOCAL_COMMIT[1]}
+  echo "- local commit id: $LOCAL_COMMIT_ID"
+  echo "------------------------------------------------------"
+fi
+
+BUILD_FLAG=""
+
+if [ "$REMOTE_COMMIT_ID" == "$LOCAL_COMMIT_ID" ];then
+  echo "- local builds are latest, no need to build"
+  echo "- build exits"
+  echo "------------------------------------------------------"
+  exit 0;
+else
+  if [ "$LOCAL_COMMIT_ID" == "" ];then
+    BUILD_FLAG="build"
+  else
+    cd $BUILD_HOME/remote/vcap-yeti/assets
+    git diff $REMOTE_COMMIT_ID $LOCAL_COMMIT_ID | grep "diff --git" > $BUILD_HOME/.gitdiff
+    grep -E "\#\{TESTS_PATH\}" $BUILD_HOME/local/vcap-yeti/tools/Rakefile > $BUILD_HOME/.javaassets
+  fi
+fi
+
+while read line
+do
+  build_path=`echo $line | awk -F'#{TESTS_PATH}' '{print $2}'| sed s/\"\,//g`
+  result=`grep $build_path $BUILD_HOME/.gitdiff`
+  if [ "$result" != "" ];then
+    BUILD_FLAG="build"
+    break;
+  fi
+done < $BUILD_HOME/.javaassets
+
+if [ $BUILD_FLAG == "build" ];then
+  echo "- build begins"
+  echo "------------------------------------------------------"
+  rm -rf $BUILD_HOME/local/vcap-yeti
+  mv $BUILD_HOME/remote/vcap-yeti $BUILD_HOME/local/
+  cd $BUILD_HOME/local/vcap-yeti/tools
+  rake build 2>&1 1>$BUILD_HOME/.buildlog
+  if [ $? -eq 0 ];then
+    echo "- build success"
+    echo "------------------------------------------------------"
+  else
+    rm -rf $BUILD_HOME/buildfail/
+    mkdir $BUILD_HOME/buildfail/
+    mv $BUILD_HOME/local/vcap-yeti $BUILD_HOME/buildfail/
+    echo "- build fail"
+    echo "------------------------------------------------------"
+  fi
+fi
+