Cannot create an alias to a version range

[mgol]

With nvm I could do this:

nvm alias default 12

and have the default always point to the latest installed 12.x.y version. With fnm this doesn't work, you have to provide a full version:

$ fnm default 12
Can't find a version installed in ~/.fnm/node-versions/v12/installation
$ ls ~/.fnm/node-versions/
v10.18.1 v12.14.1

In my experience, aliasing the default to a concrete Node version is not convenient. I want a specific major as different majors may have a breaking change but other than that, I want the latest.

[Schniz]

Solving this will also provide infrastructure for solving #121. a function that resolves a version to all the possible versions might be helpful for both, something like (version: string) => list(string)

Then we can do

let resolveInstalledVersion = version =>
  switch (installedVersionsFor(version)) {
  | [] => Error(Version_not_found)
  | [version] => version
  | versions => Error(Too_many_versions_found(versions))
  }

And then we can "decorate" the input for both alias and uninstall

Are you interested in doing a PR? I'd be happy to help over discord is someone's interested!

[mgol]

Are you interested in doing a PR? I'd be happy to help over discord is someone's interested!

Unfortunately, I'm not familiar with ReasonML. :( I did do some Ocaml stuff back in the days at the university but I'm not sure how much I remember after all these years.

That said, if this doesn't require very substantial changes then maybe I'd be able to try something with some guidance.

[Schniz]

This is now possible thanks to @tatchi 😄

[waldyrious]

This is now possible thanks to @tatchi 😄

Just to make sure, was that in #191, right?

[tatchi]

Hey,

I'm gonna try to implement this one :)