move installation to a script

.travis.yml

@@ -87,38 +87,6 @@ before_install:
   - source .travis/common.sh
 
 install:
-# Install necessary package which is not available on Travis CI 
-  - DEPS_DIR="${HOME}/deps"
-  - mkdir -p ${DEPS_DIR} && cd ${DEPS_DIR}
-# Install CMake
-  - |
-    if [[ "${TRAVIS_OS_NAME}" == "linux" ]]; then
-      CMAKE_URL="https://cmake.org/files/v3.13/cmake-3.13.0-rc3-Linux-x86_64.tar.gz"
-      mkdir -p cmake && travis_retry wget --no-check-certificate --quiet -O - ${CMAKE_URL} | tar --strip-components=1 -xz -C cmake
-      export PATH=${DEPS_DIR}/cmake/bin:${PATH}
-      echo ${PATH}
-    else
-      brew install cmake || brew upgrade cmake
-    fi
-  - cmake --version
-# Install latest iVerilog. Since no deb is provided, compile from source codes
-  - |
-    if [[ "${TRAVIS_OS_NAME}" == "linux" ]]; then
-      IVERILOG_URL="https://github.com/steveicarus/iverilog/archive/v10_3.tar.gz"
-      travis_retry wget --no-clobber --no-check-certificate --quiet -O - ${IVERILOG_URL}
-      mkdir -p iverilog-10_3
-      tar -xz v10_3.tar.gz
-      cd iverlog-10_3
-      sh autoconf.sh --prefix=${DEPS_DIR}/iverilog-10_3/bin
-      ./configure --prefix=${DEPS_DIR}/iverilog-10_3/bin
-      make -j4
-      make check
-      make install --prefix=${HOME}/iverilog-10_3/bin
-      export PATH=${DEPS_DIR}/iverilog-10_3/bin:${PATH}
-      echo ${PATH}
-    fi
-  - iverilog -V
-  - cd -
   - .travis/install.sh
 
 script:

.travis/install.sh

@@ -3,6 +3,39 @@
 source .travis/common.sh
 set -e
 
+# Install necessary package which is not available on Travis CI 
+export DEPS_DIR="${HOME}/deps"
+mkdir -p ${DEPS_DIR} && cd ${DEPS_DIR}
+# Install CMake
+if [[ "${TRAVIS_OS_NAME}" == "linux" ]]; then
+  export CMAKE_URL="https://cmake.org/files/v3.13/cmake-3.13.0-rc3-Linux-x86_64.tar.gz"
+  mkdir -p cmake && travis_retry wget --no-check-certificate --quiet -O - ${CMAKE_URL} | tar --strip-components=1 -xz -C cmake
+  export PATH=${DEPS_DIR}/cmake/bin:${PATH}
+  echo ${PATH}
+else
+  brew install cmake || brew upgrade cmake
+fi
+  cmake --version
+
+# Install latest iVerilog. Since no deb is provided, compile from source codes
+if [[ "${TRAVIS_OS_NAME}" == "linux" ]]; then
+  export IVERILOG_URL="https://github.com/steveicarus/iverilog/archive/v10_3.tar.gz"
+  travis_retry wget --no-clobber --no-check-certificate --quiet -O - ${IVERILOG_URL}
+  mkdir -p iverilog-10_3
+  tar -xz v10_3.tar.gz
+  cd iverlog-10_3
+  sh autoconf.sh --prefix=${DEPS_DIR}/iverilog-10_3/bin
+  ./configure --prefix=${DEPS_DIR}/iverilog-10_3/bin
+  make -j4
+  make check
+  make install --prefix=${HOME}/iverilog-10_3/bin
+  export PATH=${DEPS_DIR}/iverilog-10_3/bin:${PATH}
+  echo ${PATH}
+fi
+iverilog -V
+cd -
+
+
 # Git repo fixup
 #start_section "environment.git" "Setting up ${YELLOW}git checkout${NC}"
 #set -x