Update ccpp.yml

.github/workflows/ccpp.yml

@@ -11,12 +11,15 @@ jobs:
     - uses: actions/checkout@v1
     - name: install packages
       run: |
-          apt-get update && apt-get install -yq --no-install-recommends python-yaml vim telnet git ca-certificates build-essential ocaml ocamlbuild automake autoconf libtool wget python libssl-dev libssl-dev libcurl4-openssl-dev protobuf-compiler git libprotobuf-dev alien cmake debhelper uuid-dev libxml2-dev &
-          apt install -y libprotobuf10 cmake flex bison  libprocps-dev ccache autoconf texinfo libssl-dev libboost-all-dev libjsonrpccpp-dev libjsonrpccpp-tools
+          apt-get update && apt-get install -yq --no-install-recommends python-yaml vim telnet git 
+          ca-certificates build-essential ocaml ocamlbuild automake autoconf libtool wget python 
+          libssl-dev libssl-dev libcurl4-openssl-dev protobuf-compiler git libprotobuf-dev alien 
+          cmake debhelper uuid-dev libxml2-dev libprotobuf10 cmake flex bison  libprocps-dev ccache 
+          autoconf texinfo libssl-dev libboost-all-dev libjsonrpccpp-dev libjsonrpccpp-tools
     - name: install sgx
       run: |
-          git clone -b sgx_2.5 --depth 1 https://github.com/intel/linux-sgx &
-          cd linux-sgx &
+          git clone -b sgx_2.5 --depth 1 https://github.com/intel/linux-sgx &&
+          cd linux-sgx &&
           patch -p1 -i ../install-psw.patch && ./download_prebuilt.sh 2> /dev/null 
           && make -s -j$(nproc) sdk_install_pkg psw_install_pkg 
           && ./linux/installer/bin/sgx_linux_x64_sdk_2.5.100.49891.bin --prefix=/opt/intel
@@ -25,4 +28,4 @@ jobs:
     - name: build deps
       run:  cd scripts; build.py
     - name: build sgx
-      run:  autoreconf -vif & automake & ./configure & make
+      run:  autoreconf -vif && automake && ./configure && make