tfimport.sh

#!/bin/bash

# usage) bash tfimport.sh RESOURCE_TYPE RESOURCE_NAME RESOURCE_ADDR
#   eg.) bash tfimport.sh "aws_s3_bucket_notification" "foo" my-s3-bucket-name

set -ue

TEMP_TF_FILE="temp.$$.tf"

RESOURCE_TF_FILE="resources.tf"
RESOURCE_TYPE="$1"
RESOURCE_NAME="$2"
RESOURCE_ADDR="$3"

function teardown(){
    rm "$TEMP_TF_FILE" || true
    exit
}

trap 'teardown' EXIT

cat << EOF > "$TEMP_TF_FILE"
resource "$RESOURCE_TYPE" "$RESOURCE_NAME" {}
EOF

terraform import "$RESOURCE_TYPE.$RESOURCE_NAME" "$RESOURCE_ADDR" &&
terraform state show -no-color "$RESOURCE_TYPE.$RESOURCE_NAME" >> "$RESOURCE_TF_FILE"