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From: Stefan Monnier <monnier@IRO.UMontreal.CA>
To: "João Távora" <joaotavora@gmail.com>
Cc: emacs-devel@gnu.org
Subject: Re: Safety of elisp-flymake-byte-compile (Was Re: [Emacs-diffs] scratch/allow-custom-load-paths)
Date: Fri, 14 Dec 2018 08:27:12 -0500	[thread overview]
Message-ID: <jwv1s6kp7if.fsf-monnier+emacs@gnu.org> (raw)
In-Reply-To: <jjby38s5k70.fsf@gmail.com> ("João Távora"'s message of "Fri, 14 Dec 2018 13:09:23 +0000")

> Oh, I didn't know about load-history. So is this usable?
>
>     (defun moderately-trusted-p (file)
>       (catch 'done
>         (let ((file (expand-file-name file))
>               (lhist load-history)
>               (lpath load-path)
>               probe)
>           (and
>            (string-match "\\.elc?$" file)
                                   ^
                                  \\'

>            (while (setq probe (pop lhist))
>              (when (and (car probe)
>                         (equal (file-name-sans-extension file)
>                                (file-name-sans-extension (car probe))))
>                (throw 'done t)))
>            (while (setq probe (pop lpath))
>              (when (equal (file-name-as-directory
>                            (file-name-directory file))
>                           (file-name-as-directory probe))
>                (throw 'done t)))))))

LGTM

> Or do you want to write this in C for speed?  Where should this be
> plugged into?  load in lread.c directly?

I don't understand the question.  AFAIK this would only be used within
bytecomp.el when processing a `defmacro` in order to decide whether it
should be added to byte-compile-macro-environment or not.

> We should still hand load-path and load-history, or a part of
> load-history down to the flymake'in slave emacs, right?

Ah, right, we'd then need to pass the `car` of load-history entries to
the slave.


        Stefan



  reply	other threads:[~2018-12-14 13:27 UTC|newest]

Thread overview: 18+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <20181204233600.7907.75252@vcs0.savannah.gnu.org>
     [not found] ` <20181204233601.273DD209DC@vcs0.savannah.gnu.org>
2018-12-05  4:34   ` [Emacs-diffs] scratch/allow-custom-load-paths-in-elisp-flymake 4ef9711: Allow custom load paths in elisp's byte-compilation Flymake Stefan Monnier
2018-12-05 15:14     ` João Távora
2018-12-05 20:00     ` Glenn Morris
2018-12-05 20:40       ` João Távora
2018-12-08 13:23         ` Safety of elisp-flymake-byte-compile (Was Re: [Emacs-diffs] scratch/allow-custom-load-paths) João Távora
2018-12-08 15:36           ` Stefan Monnier
2018-12-10  0:20             ` João Távora
2018-12-10  2:22               ` Stefan Monnier
2018-12-10 23:17                 ` João Távora
2018-12-11 14:03                   ` Stefan Monnier
2018-12-14 12:00                     ` João Távora
2018-12-14 12:15                       ` Stefan Monnier
2018-12-14 13:09                         ` João Távora
2018-12-14 13:27                           ` Stefan Monnier [this message]
2018-12-14 13:38                             ` João Távora
2018-12-14 14:13                               ` Stefan Monnier
2018-12-11 19:30                   ` Sandboxing (was: Safety of elisp-flymake-byte-compile) Stefan Monnier
2018-12-14  1:35                     ` Sandboxing João Távora

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