Re: Selecting a project from the command line

[Manuel Gómez]

El 28/1/23 a las 20:05, Stephen Leake escribió:
> Manuel Gómez <mgrojo@gmail.com> writes:
> > Thanks. Now, I am able to set it in this way:
> >
> > alr config --set --global editor.cmd 'emacs
> > --eval=(ada-build-prompt-select-prj-file"${GPR_FILE}") ${GPR_FILE}'
>
> I'm glad that works; thanks for the feedback.
>
> > Note that there is no space between the function and the string
> > argument. Otherwise, Alire splits the argument and Emacs is not able
> > to evaluate it correctly. Don't know if that could be considered a bug
> > in Alire or not, but I couldn't find a proper way to escape the space.
>
> The space problem sounds like a bug, but it could be in your shell
> rather than in Alire. It's simpler just to edit the alire config file
> directly; it's ~/.config/alire/config.toml

When the config file is edited and space added:

$ alr edit
Editing crate with: ['emacs' '--eval=(ada-build-prompt-select-prj-file', 
'"play_2048.gpr")', 'play_2048.gpr']

And then Emacs errors:

command-line-1: End of file during parsing

That can be attributed to Alire, it's splitting the command assuming 
spaces as separator, so command lines containing spaces inside arguments 
are not supported. Using shell syntax (e.g. single quotes) inside the 
config file doesn't work either.

I opened an issue, so at least is known.

https://github.com/alire-project/alire/issues/1314

> You can also tell ada-mode to use an alire environment from within
> Emacs. For example, here is the elisp code to do that for the
> ada_language_server source:
>
> ------ prj.el ------
> ;; Emacs wisi project definitions for navigating ada_language_server -*- 
> no-byte-compile: t; -*-
> (require 'gnat-alire)
>
> (wisi-prj-select-cache
>   "alire.toml"
>   (create-alire-project
>    :name "als 23.1 patch"
>    :gpr-file (expand-file-name "gnat/lsp_server.gpr")
>    :xref-label ada-xref-backend
>    )
>   "alire.toml"
>   )
> ------- end prj.el -------

Good to know. Thanks.