Bash Script for Backup and Delete CI/CD Variables of a project, store it in json and conf file

gitlab_backup_and_delete_project_variables.sh

#!/bin/bash

init() {
  PROJECT_ID=
  GITLAB_PRIVATE_TOKEN=
  touch ./backup_envar_${PROJECT_ID}.conf
  touch ./backup_envar_${PROJECT_ID}.json
}

backup_and_delete_project_variables() {
  curl --silent --request GET --header "PRIVATE-TOKEN: ${GITLAB_PRIVATE_TOKEN}" "https://gitlab.com/api/v4/projects/${PROJECT_ID}/variables?per_page=200" | jq -r "." >> ./backup_envar_${PROJECT_ID}.json
  while read project_var_key <&3 && \
        read project_var_value <&4 && \
        read project_var_variable_type <&5 && \
        read project_var_protected <&6 && \
        read project_var_masked <&7
  do
    echo -e "${project_var_key}=${project_var_value}" >> ./backup_envar_${PROJECT_ID}.conf

    echo -e "\e[1m\e[31m Deleting ${project_var_key} \e[0m \n"
    curl --silent --request DELETE --header "PRIVATE-TOKEN: ${GITLAB_PRIVATE_TOKEN}" "https://gitlab.com/api/v4/projects/${PROJECT_ID}/variables/${project_var_key}"
  done  3< <(curl --silent --request GET --header "PRIVATE-TOKEN: ${GITLAB_PRIVATE_TOKEN}" "https://gitlab.com/api/v4/projects/${PROJECT_ID}/variables?per_page=200" | jq -r ".[].key") \
        4< <(curl --silent --request GET --header "PRIVATE-TOKEN: ${GITLAB_PRIVATE_TOKEN}" "https://gitlab.com/api/v4/projects/${PROJECT_ID}/variables?per_page=200" | jq -c ".[].value") \
        5< <(curl --silent --request GET --header "PRIVATE-TOKEN: ${GITLAB_PRIVATE_TOKEN}" "https://gitlab.com/api/v4/projects/${PROJECT_ID}/variables?per_page=200" | jq -r ".[].variable_type") \
        6< <(curl --silent --request GET --header "PRIVATE-TOKEN: ${GITLAB_PRIVATE_TOKEN}" "https://gitlab.com/api/v4/projects/${PROJECT_ID}/variables?per_page=200" | jq -r ".[].protected") \
        7< <(curl --silent --request GET --header "PRIVATE-TOKEN: ${GITLAB_PRIVATE_TOKEN}" "https://gitlab.com/api/v4/projects/${PROJECT_ID}/variables?per_page=200" | jq -r ".[].masked")

  echo -e "\n" >> ./backup_envar_${PROJECT_ID}.conf
}

main() {
  init
  backup_and_delete_project_variables
}

main "$@"

Please fill requirement in init function :

  PROJECT_ID=
  GITLAB_PRIVATE_TOKEN=

before running the script