github-pages-deploy-action/src/util.ts

import { getInput } from "@actions/core";
import { actionInterface } from "./constants";

/* Utility function that checks to see if a value is undefined or not. */
export const isNullOrUndefined = (value: any): boolean =>
  typeof value === "undefined" || value === null || value === "";

/* Generates a token type used for the action. */
export const generateTokenType = (action: actionInterface): string =>
  action.ssh
    ? "SSH Deploy Key"
    : action.accessToken
    ? "Access Token"
    : action.gitHubToken
    ? "GitHub Token"
    : "...";

/* Generates a the repository path used to make the commits. */
export const generateRepositoryPath = (action: actionInterface): string =>
  action.ssh
    ? `git@github.com:${action.repositoryName}`
    : `https://${action.accessToken ||
        `x-access-token:${action.gitHubToken}`}@github.com/${
        action.repositoryName
      }.git`;

/* Checks for the required tokens and formatting. Throws an error if any case is matched. */
export const hasRequiredParameters = (action: actionInterface): void => {
  if (
    (isNullOrUndefined(action.accessToken) &&
      isNullOrUndefined(action.gitHubToken) &&
      isNullOrUndefined(action.ssh)) ||
    isNullOrUndefined(action.repositoryPath)
  ) {
    throw new Error(
      "No deployment token/method was provided. You must provide the action with either a Personal Access Token or the GitHub Token secret in order to deploy. If you wish to use an ssh deploy token then you must set SSH to true."
    );
  }

  if (isNullOrUndefined(action.branch)) {
    throw new Error("Branch is required.");
  }

  if (!action.folder || isNullOrUndefined(action.folder)) {
    throw new Error("You must provide the action with a folder to deploy.");
  }

  if (action.folder.startsWith("/") || action.folder.startsWith("./")) {
    throw new Error(
      "Incorrectly formatted build folder. The deployment folder cannot be prefixed with '/' or './'. Instead reference the folder name directly."
    );
  }
};

/* Suppresses sensitive information from being exposed in error messages. */
export const suppressSensitiveInformation = (
  str: string,
  action: actionInterface
) => {
  let value = str;

  if (getInput("DEBUG")) {
    // Data is unmasked in debug mode.
    return value;
  }

  if (action.accessToken) {
    value = value.replace(action.accessToken, "***");
  }

  if (action.gitHubToken) {
    value = value.replace(action.gitHubToken, "***");
  }

  if (action.repositoryPath) {
    value = value.replace(action.repositoryPath, "***");
  }

  return value;
};