[debbugs-tracker] bug#18127: closed (add-to-load-path adds a path twice)

[GNU bug Tracking System]

Your message dated Wed, 30 Jul 2014 19:36:36 +0100
with message-id <address@hidden>
and subject line Re: bug#18127: add-to-load-path adds a path twice
has caused the debbugs.gnu.org bug report #18127,
regarding add-to-load-path adds a path twice
to be marked as done.

(If you believe you have received this mail in error, please contact
address@hidden)


-- 
18127: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=18127
GNU Bug Tracking System
Contact address@hidden with problems
> --- Begin Message ---
>
>
>
> Subject: 
>
> add-to-load-path adds a path twice
>
>
>
>
> Date: 
>
> Mon, 28 Jul 2014 17:06:22 +0400
>
>
>
>
> User-agent: 
>
> Gnus/5.13 (Gnus v5.13) Emacs/24.3 (gnu/linux)
>
>
>
>
> Hello, I noticed that ‘add-to-load-path’ adds a path 2 times when it is
> called in Guile REPL.
>
> taylanub from #guile explained that it may happen because in the REPL
> the compilation and execution happen in the same session and
> “‘add-to-load-path’ takes care of modifying the path both at
> compile-time and at run-time.” (from manual).
>
> Here is the session for illustrating the bug (if it's a bug) :
>
> $ guile
> GNU Guile 2.0.11
> Copyright (C) 1995-2014 Free Software Foundation, Inc.
>
> Guile comes with ABSOLUTELY NO WARRANTY; for details type `,show w'.
> This program is free software, and you are welcome to redistribute it
> under certain conditions; type `,show c' for details.
>
> Enter `,help' for help.
> scheme@(guile-user)> %load-path
> $1 = ( "/usr/share/guile/2.0" "/usr/share/guile/site/2.0" 
> "/usr/share/guile/site" "/usr/share/guile")
> scheme@(guile-user)> (add-to-load-path "foo")
> scheme@(guile-user)> %load-path
> $2 = ("foo" "foo" "/usr/share/guile/2.0" "/usr/share/guile/site/2.0" 
> "/usr/share/guile/site" "/usr/share/guile")
> scheme@(guile-user)> ,q
>
>
> Also I have a question: Why there is no ‘add-to-load-compiled-path’?  I
> think such function may also be useful.
>
> Thanks,
> Alex
>
>
>
> --- End Message ---
> --- Begin Message ---
>
>
>
> Subject: 
>
> Re: bug#18127: add-to-load-path adds a path twice
>
>
>
>
> Date: 
>
> Wed, 30 Jul 2014 19:36:36 +0100
>
>
>
>
> User-agent: 
>
> Gnus/5.13 (Gnus v5.13) Emacs/24.3 (gnu/linux)
>
>
>
>
> Alex Kost <address@hidden> writes:
>
> > taylanub from #guile explained that it may happen because in the REPL
> > the compilation and execution happen in the same session and
> > “‘add-to-load-path’ takes care of modifying the path both at
> > compile-time and at run-time.” (from manual).
>
> This is correct, it will also happen in scripts if they are
> auto-compiled, but you will only see it once on subsequent runs, since
> macro-expansion doesn't need to happen again.
>
> The fix is simple, and there is no harm in it, so I've pushed a fix to
> stable-2.0.
>
> > Also I have a question: Why there is no ‘add-to-load-compiled-path’?  I
> > think such function may also be useful.
>
> Fair question. I have no idea about the answer, but I've not touched
> this one. As a general principle, I wouldn't like to see us have a
> separate macro for each of these.
>
> Thanks
>
> -- 
> Ian Price -- shift-reset.com
>
> "Programming is like pinball. The reward for doing it well is
> the opportunity to do it again" - from "The Wizardy Compiled"
>
>
> --- End Message ---