add import subcommand (hashicorp#117)

* add import subcommand

* Update src/terraform_import.sh

Co-Authored-By: Matthew Sanabria <[email protected]>

Co-authored-by: Matthew Sanabria <[email protected]>

Author: vvakame

src/main.sh

@@ -102,6 +102,7 @@ function main {
   source ${scriptDir}/terraform_plan.sh
   source ${scriptDir}/terraform_apply.sh
   source ${scriptDir}/terraform_output.sh
+  source ${scriptDir}/terraform_import.sh
 
   parseInputs
   configureCLICredentials
@@ -132,6 +133,10 @@ function main {
       installTerraform
       terraformOutput ${*}
       ;;
+    import)
+      installTerraform
+      terraformImport ${*}
+      ;;
     *)
       echo "Error: Must provide a valid value for terraform_subcommand"
       exit 1

src/terraform_import.sh

@@ -0,0 +1,47 @@
+#!/bin/bash
+
+function terraformImport {
+  # Gather the output of `terraform import`.
+  echo "import: info: importing Terraform configuration in ${tfWorkingDir}"
+  importOutput=$(terraform import -input=false ${*} 2>&1)
+  importExitCode=${?}
+  importCommentStatus="Failed"
+
+  # Exit code of 0 indicates success with no changes. Print the output and exit.
+  if [ ${importExitCode} -eq 0 ]; then
+    echo "import: info: successfully imported Terraform configuration in ${tfWorkingDir}"
+    echo "${importOutput}"
+    echo
+    exit ${importExitCode}
+  fi
+
+  # Exit code of !0 indicates failure.
+  if [ ${importExitCode} -ne 0 ]; then
+    echo "import: error: failed to import Terraform configuration in ${tfWorkingDir}"
+    echo "${importOutput}"
+    echo
+  fi
+
+  # Comment on the pull request if necessary.
+  if [ "$GITHUB_EVENT_NAME" == "pull_request" ] && [ "${tfComment}" == "1" ] && [ "${importCommentStatus}" == "Failed" ]; then
+    importCommentWrapper="#### \`terraform import\` ${importCommentStatus}
+<details><summary>Show Output</summary>
+
+\`\`\`
+${importOutput}
+\`\`\`
+
+</details>
+
+*Workflow: \`${GITHUB_WORKFLOW}\`, Action: \`${GITHUB_ACTION}\`, Working Directory: \`${tfWorkingDir}\`*"
+
+    importCommentWrapper=$(stripColors "${importCommentWrapper}")
+    echo "import: info: creating JSON"
+    importPayload=$(echo "${importCommentWrapper}" | jq -R --slurp '{body: .}')
+    importCommentsURL=$(cat ${GITHUB_EVENT_PATH} | jq -r .pull_request.comments_url)
+    echo "import: info: commenting on the pull request"
+    echo "${importPayload}" | curl -s -S -H "Authorization: token ${GITHUB_TOKEN}" --header "Content-Type: application/json" --data @- "${importCommentsURL}" > /dev/null
+  fi
+
+  exit ${importExitCode}
+}