Re: tramp and executable-find

[yyoncho <yyoncho@gmail.com>]

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Hi Michael,

The examples that do not work on my side are when using a full
file path when the binary is not on remote PATH.

Thanks,
Ivan

On Sat, Jun 20, 2020 at 8:43 PM Michael Albinus <michael.albinus@gmx.de>
wrote:

> yyoncho <yyoncho@gmail.com> writes:
>
> > Hi Michael,
>
> Hi Ivan,
>
> > Can you comment on remote flag mentioned by Philip as well?
> >
> > Here it is the docs for it:
> >
> > REMOTE is non-nil, search on the remote host indicated by
> > `default-directory' instead.
>
> Right, I forgot this. Sorry. So let's go back to your question:
>
> >> As part of investigating
> >> https://github.com/emacs-lsp/lsp-mode/issues/1688 I noticed that
> >> executable-find does not return the binary when it is not on the
> >> remote PATH(or at least this is what I see) even if you specify the
> >> full path to the binary. Can you comment if this is the expected
> >> behaviour?
>
> The crucial point is `default-directory'. In my local environment, I
> have for example
>
> --8<---------------cut here---------------start------------->8---
> (let ((default-directory "/tmp"))
>   (executable-find "emacs"))
> "/usr/local/bin/emacs"
>
> (let ((default-directory "/tmp"))
>   (executable-find "emacs" 'remote))
> "/usr/local/bin/emacs"
>
> (let ((default-directory "/ssh:ford:"))
>   (executable-find "emacs"))
> "/usr/local/bin/emacs"
>
> (let ((default-directory "/ssh:ford:"))
>   (executable-find "emacs" 'remote))
> "/opt/bin/emacs"
> --8<---------------cut here---------------end--------------->8---
>
> You get the remote path only if `default-directory' is a remote file
> name, and the REMOTE argument of `executable-find' is non-nil. And this
> is understandable: if `default-directory' is not a remote file name,
> `executable-find' does not know which remote host it shall use for search.
>
> > Thanks,
> > Ivan
>
> Best regards, Michael.
>

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