Function copyProjectFiles

packages/hardhat/src/internal/cli/init/init.ts:537–604

(
  workspace: string,
  template: Template,
  force?: boolean,
)

 * @param force Whether to overwrite existing files in the workspace.
 */
export async function copyProjectFiles(
  workspace: string,
  template: Template,
  force?: boolean,
): Promise<void> {
  // Find all the paths in the template that clash with an existing one in the
  // workspace
  const matchingRelativeWorkspacePaths = (
    await Promise.all(
      template.files.map(async (relativeTemplatePath) => {
        const relativeWorkspacePath =
          relativeTemplateToWorkspacePath(relativeTemplatePath);

        const absoluteWorkspacePath = path.join(
          workspace,
          relativeWorkspacePath,
        );

        if (!(await exists(absoluteWorkspacePath))) {
          return undefined;
        }

        // We ignore directories in this clash detection
        if (await isDirectory(absoluteWorkspacePath)) {
          return undefined;
        }

        return relativeWorkspacePath;
      }),
    )
  ).filter((relativeWorkspacePath) => relativeWorkspacePath !== undefined);

  const matchingRelativeWorkspacePathsSet = new Set(
    matchingRelativeWorkspacePaths,
  );

  // Ask the user for permission to overwrite existing files if needed
  if (matchingRelativeWorkspacePaths.length !== 0) {
    if (force === undefined) {
      force = await promptForForce(matchingRelativeWorkspacePaths);
    }
  }

  // Copy the template files to the workspace
  for (const relativeTemplatePath of template.files) {
    const relativeWorkspacePath =
      relativeTemplateToWorkspacePath(relativeTemplatePath);

    if (
      force === false &&
      matchingRelativeWorkspacePathsSet.has(relativeWorkspacePath)
    ) {
      continue;
    }

    const absoluteTemplatePath = path.join(template.path, relativeTemplatePath);
    const absoluteWorkspacePath = path.join(workspace, relativeWorkspacePath);