feat: add npx conversions

[Jay-Karia]

This PR adds a new type of conversions (for npx).

The command npx create-next-app is converted into:
yarn dlx create-next-app (yarn)
pnpm dlx create-next-app (pnpm)
bun x create-next-app (bun)

Automatically detects executor commands and converts it

Here's a code example.

convert("npx create-next-app", "yarn");
// yarn dlx create-next-app

Closes #48

[Jay-Karia]

@nebrelbug should I add tests before merging ?

[nebrelbug]

@Jay-Karia Yeah tests would be great, thanks

[nebrelbug]

@slorber, I'd love to hear your thoughts about this proposal since Docusaurus is one of the main users of npm-to-yarn.

[Jay-Karia]

facebook/docusaurus#10355

[slorber]

Yes that looks like a useful feature to add that we could use on the Docusaurus website

[nebrelbug]

@Jay-Karia I think for ease of use, it should detect whether or not it is an executor command (test for npx|pnpm dlx|...) automatically rather than requiring an extra argument flag.

[Jay-Karia]

@nebrelbug Should we consider updating the version to: 2.3.0 or 3.0.0 after this feature?

[Jay-Karia]

@nebrelbug Removed extra argument

[Jay-Karia]

bunx has bugs in windows.
pnpmx does not exists, it's either pnpm exec or pnpm dlx. Same goes with yarn

[nebrelbug]

@Jay-Karia thanks for the great work! I think we should probably update to a major version. Do you think this is ready to merge?

[Jay-Karia]

Yes

[nebrelbug]

I just merged this (with the CLI, not through the web client) and released in https://github.com/nebrelbug/npm-to-yarn/releases/tag/v3.0.0! Thanks for your help!

[slorber]

Note: that's a bit unfortunate but it looks like yarn dlx is not supported by Yarn 1

For this reason the limits the adoption of this feature. I don't think it's a good idea to use it on the Docusaurus website because many users use Yarn 1 (including ourselves)

[Jay-Karia]

is yarn exec supported in Yarn 1 ?

[slorber]

I don't see it listed here: https://classic.yarnpkg.com/en/docs/cli/

However yarn exec echo "Hello" works but it doesn't seem to be a decent alternative to npx