❯ DZX

Deno shell tools inspired by zx

#!/usr/bin/env dzx
/// <reference path="https://deno.land/x/dzx/types.d.ts" />

console.log(`Hello from ${$.blue.bold("dzx")}!`);

const branch = await $`git branch --show-current`;
await $`dep deploy --branch=${branch}`;

await Promise.all([
  $`deno lint --unstable`,
  $`deno fmt --check`,
  $`deno test --allow-all`,
]);

const name = "foo bar";
await $`mkdir /tmp/${name}`; // <-- string will be safly quoted to: /tmp/'foo bar'

Content

• Install
• Documentation
• Contributing
• License

Install

deno install --allow-all -r -f https://deno.land/x/dzx/dzx.ts

Documentation

You can write your scripts in a file with .js, .mjs or .ts extension.

Add next shebang at the beginning of your script:

#!/usr/bin/env zx

Now you will be able to run your script as:

chmod +x ./script.js
./script.js

If you want to use typescript you need to add a tripple slash reference for the typings at the top of the file, but not before the shebang line.

#!/usr/bin/env zx
/// <reference path="https://deno.land/x/dzx/types.d.ts" />

Now you will be able to run your typescript script the same way as your js script:

chmod +x ./script.ts
./script.ts

You can also import all symbol directly from dzx/mod.ts instead of using globals.

#!/usr/bin/env zx
import { $ } from "https://deno.land/x/dzx/mod.ts";

$.verbose

Enable debugging output.

$.shell

Set the current shel.

$.cwd

Set the current working directory.

$.quote

Parser method that is used to safely quote strings. Used by: $`command`

$`command`

const count = parseInt(await $`ls -1 | wc -l`);
console.log(`Files count: ${count}`);

ProcessOutput

If the executed program was successful, an instance of ProcessOutput will be return.

class ProcessOutput {
  readonly stdout: string;
  readonly stderr: string;
  readonly combined: string;
  readonly status: Deno.ProcessStatus;
  toString(): string;
}

ProcessError

The ProcessError class extends from the Error class and implements all properties and methods from ProcessOutput.

class ProcessError extends Error implements ProcessOutput {}

If the executed program returns a non-zero exit code, a ProcessError will be thrown.

try {
  await $`exit 1`;
} catch (process) {
  console.log(`Exit code: ${process.status.code}`);
  console.log(`Error: ${process.stderr}`);
}

cd()

Set the current working directory. If path does not exist, an error is thrown.

$.[style]()

dzx has chainable color methods that are available on the global $ symbol.

console.log($.blue.bold("Hello world!"));

quote`string`

The quote methods quotes safly a string. by default the shq package is used. Can be overidden with $.quote.

Remote usage

#!/usr/bin/env deno run --allow-run --allow-read --allow-env https://deno.land/x/dzx/dzx.ts
/// <reference path="https://deno.land/x/dzx/types.d.ts" />

console.log(`Hello ${$.blue.bold("world")}!`);

Contributing

Any kind of contribution is welcome!

License

MIT