Hi Andrew,
As far as I understand the current problem is that `rbenv init -` is using
POSIX compatible syntax so when Rbenv gets sourced, fish currently cannot deal
with it. It’s got export, typeset, etc inside it so when fish would want to
eval it, it fails for obvious reasons.
Also, `rbenv shell` is a non working command at the moment for the same reason.
These would red to be extended so that rbenv would use fish compatible commands
(set instead of export, etc)
I assume you must have set up your own scripts to work with Rbenv within fish.
Am I not right?
— Attila
On 22 Jul 2013, at 19:11, Andrew Kreps <andrew.kr...@gmail.com> wrote:
> I'd be interested in helping out, as I'm both a fish and rbenv user. The one
> question I have is, what functionality are you lacking? I'm using rbenv
> inside fish without any issues.
>
>
> On Mon, Jul 22, 2013 at 9:09 AM, Attila Györffy <attila.gyor...@gmail.com>
> wrote:
> Hi All,
>
> As an attempt to migrate my default shell from zsh to fish, I found myself
> not being able to use some of my favourite tools, mainly Rbenv. For some of
> you who may not be familiar with Rbenv, it is a sophisticated Ruby version
> manager for POSIX shells:
> https://github.com/sstephenson/rbenv
>
> Some people have been able to make Rbenv work with some hacks or workarounds
> by creating their own shell functions that mimic the original functionality
> of Rbenv, however the problem is that it might get out of sync with the
> original Rbenv implementation meaning that those hacks could potentially
> break any moment.
>
> I think as it is with Rbenv, fish’s popularity is highly dependant on the
> fish compatibility of the most commonly used tools. Rather than introducing
> external workarounds, I think we need to get the most common tools to support
> the new shell out of the box in order to raise awareness of fish itself. I
> understand that this sounds like a major pain in the a** and would involve
> lots and lots of work from the community but we could do one thing at a time.
>
> Having said that I decided to try adding fish shell compatibility to Rbenv.
> Unfortunately, turns out that I’m not a huge shell magician and I’m just
> getting familiar with the fish shell scripts. Having said that, I’m looking
> for contributors and guidelines towards doing a good job in adding fish
> compatible functionality to Rbenv.
>
> I’ve joined the discussion on Github that is related to the fish shell
> compatibility:
> https://github.com/sstephenson/rbenv/issues/195
>
> I did contact the authors of Rbenv and manages to squeeze out some
> information of them. Now, even though Rbenv is making use of bash or zsh
> (either one of them, really) those shells do not necessarily need to be your
> login shell, just need to be available on the system to make sure Rbenv
> operates as expected. Looks like the majority of the work would be to ensure
> that this particular script spits out fish compatible commands:
> https://github.com/sstephenson/rbenv/blob/master/libexec/rbenv-init
>
> Is there somebody who might be interested in helping out?
>
> Here’s what we’d need:
>
> * A fish shell compatible output of `rbenv init -` so that it can be
> evaluated by fish and the rbenv function could be loaded into the shell.
> * A shell script testing too that is compatible with fish. Rbenv issuing Bats
> for testing Bash scripts. Having tests for the fish compatible layer of Rbenv
> would be great.
>
> Let me know if somebody is eager to help out.
>
> Thanks,
>
> — Attila
>
> PS: If somebody knows of a useful and easy to understand resource online that
> would help in porting POSIX scripts to fish, then let mw know please. (Mostly
> for shell script noobs like myself)
>
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