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1ffbd56164
This adds an init subcommand to that creates a project starter similar to cargo init.
```
$ deno init my_project
Project initialized
Run these commands to get started:
cd my_project
deno run main.ts
deno run main_test.ts
$ deno run main.ts
Add 2 + 3 5
$ cat main.ts
export function add(a: number, b: number): number {
return a + b;
}
if (import.meta.main) {
console.log("Add 2 + 3", add(2, 3));
}
$ cat main_test.ts
import { assertEquals } from "https://deno.land/std@0.151.0/testing/asserts.ts";
import { add } from "./main.ts";
Deno.test(function addTest() {
assertEquals(add(2, 3), 5);
});
```
Co-authored-by: Bartek Iwańczuk <biwanczuk@gmail.com>
49 lines
1.3 KiB
Rust
49 lines
1.3 KiB
Rust
// Copyright 2018-2022 the Deno authors. All rights reserved. MIT license.
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use crate::args::InitFlags;
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use crate::compat;
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use deno_core::{anyhow::Context, error::AnyError};
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use std::io::Write;
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use std::path::Path;
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fn create_file(
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dir: &Path,
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filename: &str,
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content: &str,
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) -> Result<(), AnyError> {
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let mut file = std::fs::OpenOptions::new()
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.write(true)
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.create_new(true)
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.open(dir.join(filename))
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.with_context(|| format!("Failed to create {} file", filename))?;
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file.write_all(content.as_bytes())?;
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Ok(())
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}
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pub async fn init_project(init_flags: InitFlags) -> Result<(), AnyError> {
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let cwd =
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std::env::current_dir().context("Can't read current working directory.")?;
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let dir = if let Some(dir) = &init_flags.dir {
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let dir = cwd.join(dir);
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std::fs::create_dir_all(&dir)?;
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dir
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} else {
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cwd
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};
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let main_ts = include_str!("./templates/main.ts");
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create_file(&dir, "main.ts", main_ts)?;
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let main_test_ts = include_str!("./templates/main_test.ts")
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.replace("{CURRENT_STD_URL}", compat::STD_URL_STR);
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create_file(&dir, "main_test.ts", &main_test_ts)?;
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println!("✅ Project initialized");
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println!("Run these commands to get started");
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if let Some(dir) = init_flags.dir {
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println!(" cd {}", dir);
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}
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println!(" deno run main.ts");
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println!(" deno test");
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Ok(())
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}
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