Buggy bash line in README

[sarna]

Hi!

First of all, thanks for writing this tool, it's really helpful :)

However, I noticed (well, my shell noticed) one of your bash lines in the README is wrong. Observe:

sarna@ub:~$ echo 'eval $(lonestar init)' >> "$HOME/.${SHELL}rc"
bash: /home/sarna/./bin/bashrc: No such file or directory

It behaves like this, because

sarna@ub:~$ echo $SHELL
/bin/bash

And that's not what we want!

I searched the web for a bit and found this helpful thread.

These two answers seem to be fitting:

sarna@ub:~$ ps -p $$ -oargs=
bash
sarna@ub:~$ echo $0
bash

I'm no shell expert though, so I'll leave the decision to someone smarter than me :)

Have a nice day!

[Tyil]

First off all, sorry for the slow response!

Interesting find, I had not considered this. I will pick a suitable solution and make a fix for this in the README soon-ish. Thanks!

[Tyil]

I've done some testing on my local machine with bash, dash, fish and zsh. The results are as follows:

• echo $0

  • bash: bash
  • dash: dash
  • fish: ``
  • zsh: /bin/zsh

• ps -p $$ -oargs=

  • bash: bash
  • dash: dash
  • fish: No output, but an error instead. Fish doesn't support $$.
  • zsh: /bin/zsh

So it seems this is not the solution either. However, I can make something work with awk in the mix, combined with $SHELL.

• echo $SHELL|awk -F/ '{print $NF}'
  • bash: bash
  • dash: zsh
  • fish: zsh
  • zsh: zsh

This, however, doesn't seem to work properly for me either. If I come from a zsh shell, and run bash, and then run echo $SHELL|awk -F/ '{print $NF}', it still reports zsh on my machine. Another possible solution I have is using ps, tail and awk.

• ps -p $$|tail -n1| awk '{print $NF}'
  • bash: bash
  • dash: dash
  • fish: An error, as it still doesn't support $$.
  • zsh: zsh

So, apart from fish, the last solution seems to be most universal. I'm not a fish export (or a proponent of any non POSIX compatible shell), so I guess I'll take this solution. If someone knows a solution that would also work for fish, I'd be happy to hear/read it.

[sarna]

It would be incorrect for fish anyway, since it doesn't have .fishrc - .bashrc's equivalent is at ~/.config/fish/config.fish.

I'd say push the last solution for now and keep the issue open, I might be able to make some time over the weekend to write a fish-specific version.

[Tyil]

Updated in cb49060.

[sarna]

Okay, so, I got it to work on FreeBSD using fish. I had to patch the Makefile, though.

Steps to install from source, in my case:
cd (mktemp -d) -- note this line is different from the one in README
git clone https://github.com/tyil/lonestar.git .
apply the Makefile patch
sudo make install clean

Also, lonestar init doesn't work with fish. To properly add stuff to path, fish user can use this:

set -U fish_user_paths ~/.rakudo-star/*/install/bin $fish_user_paths 
set -U fish_user_paths ~/.rakudo-star/*/install/share/perl6/site/bin $fish_user_paths

So - it works, but I don't know which changes you want to incorporate into lonestar :) Feel free to utilize whatever you find useful.