feat: add option for init command to upgrade providers (#102)

Co-authored-by: marboledacci <mateo.arboleda@circleci.com>

src/commands/init.yml

@@ -27,6 +27,10 @@ parameters:
     description: Configure a custom timeout limit
     type: string
     default: 10m
+  upgrade:
+    description: "Install the latest terraform module and provider versions"
+    type: boolean
+    default: false
 
 steps:
   - run:
@@ -38,4 +42,5 @@ steps:
         TF_PARAM_BACKEND_CONFIG: << parameters.backend_config >>
         TF_PARAM_BACKEND_CONFIG_FILE: << parameters.backend_config_file >>
         TF_PARAM_CLI_CONFIG_FILE: << parameters.cli_config_file >>
+        TF_PARAM_UPGRADE: << parameters.upgrade >>
       command: <<include(scripts/init.sh)>>

src/scripts/init.sh

@@ -35,6 +35,11 @@ if [[ -n "${TF_PARAM_BACKEND_CONFIG}" ]]; then
         INIT_ARGS="$INIT_ARGS -backend-config=$(eval echo "$config")"
     done
 fi
+
+if [[ "${TF_PARAM_UPGRADE}" = true ]]; then
+    INIT_ARGS="$INIT_ARGS -upgrade"
+fi
+
 export INIT_ARGS
 # shellcheck disable=SC2086
 terraform -chdir="$module_path" init -input=false -backend=$backend $INIT_ARGS