[develop] CMAKE version check before dependencies are installed

scripts/.build_vars

@@ -7,6 +7,7 @@ export LIB_DIR=${EOSIO_INSTALL_DIR}/lib
 export DATA_DIR=${EOSIO_INSTALL_DIR}/data
 
 # CMAKE
+export CMAKE_REQUIRED_VERSION=$(cat $REPO_ROOT/CMakeLists.txt | grep -E "cmake_minimum_required\([[:blank:]]*VERSION" | tail -1 | sed 's/.*VERSION //g' | cut -d\) -f1 | sed 's/ //g')
 export CMAKE_VERSION_MAJOR=3
 export CMAKE_VERSION_MINOR=13
 export CMAKE_VERSION_PATCH=2

scripts/eosio_build.sh

@@ -144,7 +144,12 @@ execute cd $REPO_ROOT
 ensure-submodules-up-to-date
 
 # Check if cmake already exists
-( [[ -z "${CMAKE}" ]] && [[ ! -z $(command -v cmake 2>/dev/null) ]] ) && export CMAKE=$(command -v cmake 2>/dev/null)
+( [[ -z "${CMAKE}" ]] && [[ ! -z $(command -v cmake 2>/dev/null) ]] ) && export CMAKE=$(command -v cmake 2>/dev/null) && export CMAKE_CURRENT_VERSION=$($CMAKE --version | grep -E "cmake version[[:blank:]]*" | sed 's/.*cmake version //g')
+# If it exists, check that it's > required version
+if [[ ! -z $CMAKE_CURRENT_VERSION ]] && [[ $( echo $CURRENT_CMAKE_VERSION | awk -F. '{ printf("%03d%03d%03d\n", $1,$2,$3); }' ) < $( echo $CMAKE_REQUIRED_VERSION | awk -F. '{ printf("%03d%03d%03d\n", $1,$2,$3); }' ) ]]; then
+   echo "${COLOR_YELLOW}The currently installed cmake version ($CMAKE_CURRENT_VERSION) is less than the required version ($CMAKE_REQUIRED_VERSION). We will be installing $CMAKE_VERSION.${COLOR_NC}"
+   export CMAKE=
+fi
 
 # Use existing cmake on system (either global or specific to eosio)
 # Setup based on architecture

tests/bash-bats/eosio_build.sh

@@ -24,7 +24,7 @@ TEST_LABEL="[eosio_build]"
             run bash -c "printf \"y\ny\ny\nn\nn\n\" | ./${SCRIPT_LOCATION}"
             [[ ! -z $(echo "${output}" | grep "Unable to find .* compiler") ]] || exit
         fi
-    fi 
+    fi
 
     cd ./scripts # Also test that we can run the script from a directory other than the root
     run bash -c "./eosio_build.sh -y -P"

tests/bash-bats/modules/cmake.sh

@@ -7,6 +7,9 @@ load ../helpers/functions
     touch $CMAKE
     run bash -c " ./$SCRIPT_LOCATION -y -P"
     [[ ! -z $(echo "${output}" | grep "Executing: bash -c ${HOME}/cmake") ]] || exit
+    export CMAKE_CURRENT_VERSION=3.7.1
+    run bash -c " ./$SCRIPT_LOCATION -y -P"
+    [[ ! -z $(echo "${output}" | grep "We will be installing $CMAKE_VERSION") ]] || exit
     # Testing for if cmake doesn't exist to be sure it's set properly
     export CMAKE=
     run bash -c "./$SCRIPT_LOCATION -y -P"