123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106
// Copyright 2018-2022 the Deno authors. All rights reserved. MIT license.
import { colors, ensureDir } from "../deps.ts";import { versions } from "../versions.ts";import { pathExists } from "../helpers.ts";
export async function runNewCommand() {  if (await pathExists("./rs_lib")) {    console.log(      `${        colors.bold(colors.red("Error"))      } cannot scaffold new project because the rs_lib folder already exists.`,    );    Deno.exit(1);  }
  console.log(    `${colors.bold(colors.green("Creating"))} rs_lib...`,  );
  if (!await pathExists("./Cargo.toml")) {    await Deno.writeTextFile(      "./Cargo.toml",      `[workspace]members = [  "rs_lib",]`,    );  }  if (!await pathExists("./.rustfmt.toml")) {    await Deno.writeTextFile(      "./.rustfmt.toml",      `max_width = 80tab_spaces = 2edition = "2021"`,    );  }
  let gitIgnoreText = await getFileTextIfExists("./.gitignore") ?? "";  if (!/^\/target$/m.test(gitIgnoreText)) {    gitIgnoreText = gitIgnoreText.trim();    if (gitIgnoreText.length > 0) {      gitIgnoreText = gitIgnoreText + "\n";    }    gitIgnoreText += "/target\n";    await Deno.writeTextFile("./.gitignore", gitIgnoreText);  }
  await ensureDir("./rs_lib/src");  await Deno.writeTextFile(    "./rs_lib/Cargo.toml",    `[package]name = "rs_lib"version = "0.0.0"edition = "2021"
[lib]crate_type = ["cdylib"]
[profile.release]codegen-units = 1incremental = truelto = trueopt-level = "z"
[dependencies]wasm-bindgen = "=${versions.wasmBindgen}"`,  );  await Deno.writeTextFile(    "./rs_lib/src/lib.rs",    `use wasm_bindgen::prelude::*;
#[wasm_bindgen]pub fn add(a: i32, b: i32) -> i32 {  return a + b;}
#[cfg(test)]mod tests {  use super::*;
  #[test]  fn it_works() {    let result = add(1, 2);    assert_eq!(result, 3);  }}`,  );}
async function getFileTextIfExists(path: string) {  try {    return await Deno.readTextFile(path);  } catch (err) {    if (err instanceof Deno.errors.NotFound) {      return undefined;    } else {      throw err;    }  }}