entrypoint.sh

#!/bin/bash

set -u

function parseInputs() {
  # Required inputs
  if [ "${INPUT_CDK_SUBCOMMAND}" == "" ]; then
    echo "Input cdk_subcommand cannot be empty"
    exit 1
  fi
}

function installTypescript() {
  npm install typescript
}

function installAwsCdk() {
  echo "Install aws-cdk ${INPUT_CDK_VERSION}"
  if [ "${INPUT_CDK_VERSION}" == "latest" ]; then
    if [ "${INPUT_DEBUG_LOG}" == "true" ]; then
      npm install -g aws-cdk
    else
      npm install -g aws-cdk >/dev/null 2>&1
    fi

    if [ "${?}" -ne 0 ]; then
      echo "Failed to install aws-cdk ${INPUT_CDK_VERSION}"
    else
      echo "Successful install aws-cdk ${INPUT_CDK_VERSION}"
    fi
  else
    if [ "${INPUT_DEBUG_LOG}" == "true" ]; then
      npm install -g aws-cdk@${INPUT_CDK_VERSION}
    else
      npm install -g aws-cdk@${INPUT_CDK_VERSION} >/dev/null 2>&1
    fi

    if [ "${?}" -ne 0 ]; then
      echo "Failed to install aws-cdk ${INPUT_CDK_VERSION}"
    else
      echo "Successful install aws-cdk ${INPUT_CDK_VERSION}"
    fi
  fi
}

function installPipRequirements() {
  if [ -e "requirements.txt" ]; then
    echo "Install requirements.txt"
    if [ "${INPUT_DEBUG_LOG}" == "true" ]; then
      pip install -r requirements.txt
    else
      pip install -r requirements.txt >/dev/null 2>&1
    fi

    if [ "${?}" -ne 0 ]; then
      echo "Failed to install requirements.txt"
    else
      echo "Successful install requirements.txt"
    fi
  fi
}

function runCdk() {
  if [ "${INPUT_CDK_SUBCOMMAND}" == "bootstrap" ]; then
    echo "Run cdk ${INPUT_CDK_SUBCOMMAND}"
    output=$(cdk ${INPUT_CDK_SUBCOMMAND} 2>&1)
    exitCode=${?}
    echo ::set-output name=status_code::${exitCode}
    echo "${output}"
  else
    echo "Run cdk ${INPUT_CDK_SUBCOMMAND} ${*} \"${INPUT_CDK_STACK}\""
    output=$(cdk ${INPUT_CDK_SUBCOMMAND} ${*} "${INPUT_CDK_STACK}" 2>&1)
    exitCode=${?}
    echo ::set-output name=status_code::${exitCode}
    echo "${output}"
  fi

  commentStatus="Failed"
  if [ "${exitCode}" == "0" ]; then
    commentStatus="Success"
  elif [ "${exitCode}" != "0" ]; then
    echo "CDK subcommand ${INPUT_CDK_SUBCOMMAND} for stack ${INPUT_CDK_STACK} has failed. See above console output for more details."
    exit 1
  fi

  if [ "$GITHUB_EVENT_NAME" == "pull_request" ] && [ "${INPUT_ACTIONS_COMMENT}" == "true" ]; then
    commentWrapper="#### \`cdk ${INPUT_CDK_SUBCOMMAND}\` ${commentStatus}
<details><summary>Show Output</summary>

\`\`\`
${output}
\`\`\`

</details>

*Workflow: \`${GITHUB_WORKFLOW}\`, Action: \`${GITHUB_ACTION}\`, Working Directory: \`${INPUT_WORKING_DIR}\`*"

    payload=$(echo "${commentWrapper}" | jq -R --slurp '{body: .}')
    commentsURL=$(cat ${GITHUB_EVENT_PATH} | jq -r .pull_request.comments_url)

    echo "${payload}" | curl -s -S -H "Authorization: token ${GITHUB_TOKEN}" --header "Content-Type: application/json" --data @- "${commentsURL}" >/dev/null
  fi
}

function main() {
  parseInputs
  cd ${GITHUB_WORKSPACE}/${INPUT_WORKING_DIR}
  installTypescript
  installAwsCdk
  installPipRequirements
  runCdk ${INPUT_CDK_ARGS}
}

main