Default preferLocal to true when using $

[ehmicky]

The default value for preferLocal used to be true. We changed it to false in #314 because it conflicted with some uncommon setups (#196, #153). IMHO preferLocal is still a very helpful option for most users, and it's too bad we cannot enable it by default due to the above.

Now, I am wondering whether the default value should be true with the new $ methods we just introduced? The reasons for this is:

• It is easier for users with the uncommon setups mentioned above to change the default value thanks to the options binding method: const $$ = $({ preferLocal: false })
• $() is more likely than execa() to be used in a script with many commands to execute. This increases the chance of at least one of them to be a local binary.

What do you think @sindresorhus and @aaronccasanova?

[sindresorhus]

I agree. true is a better default for scripting. We need to clearly document the behavior though.

[ehmicky]

Great, let's do this then!
@aaronccasanova Woud you like to take this up, as this relates to the $ API? Otherwise, I'm also happy to do it.

[aaronccasanova]

I like it 👍 Feel free to pick this one up @ehmicky!

If I'm not mistaken it should be a quick update to export const $ = create$({preferLocal: true}); here:

execa/index.js

Line 245 in eae327c

export const $ = create$();

[ehmicky]

Done at #529. 👍