Re: Can I share ~/.emacs.d/elpa with two machines?

[Rainer M Krug <Rainer@krugs.de>]

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Kaushal Modi <kaushal.modi@gmail.com> writes:

> I also update org via git and faced the compiled code incompatibility
> issue. I resolved it the same way .. using version specific compiled org
> dirs.
>
> Here's the full code gathered from various places in my config:
>
> Part 1:
> https://github.com/kaushalmodi/.emacs.d/blob/56b84df6ff399ab65c040d4d872dc65fb45515e6/init.el#L9-L13
> (setq user-home-directory     (concat (getenv "HOME") "/")) ; must end with
> /
> (setq user-emacs-directory    (concat user-home-directory ".emacs.d/")) ;
> must end with /
> (setq emacs-version-short     (replace-regexp-in-string
>                                "\\([0-9]+\\)\\.\\([0-9]+\\).*"
>                                "\\1_\\2" emacs-version)) ; 25.0.50.1 -> 25_0
>
> Part 2:
> https://github.com/kaushalmodi/.emacs.d/blob/56b84df6ff399ab65c040d4d872dc65fb45515e6/setup-files/setup-org.el#L32-L34
>     (add-to-list 'load-path (concat user-emacs-directory
>                                     "elisp/org-mode/lisp_"
>                                     emacs-version-short "/"))
>
> Part 3: The nasty part.
> Use a shell script or script of your preferred flavor to build org-mode for
> each of the emacs versions you are using and copy the built lisp/ dir to
> the version specific lisp dir.
>
> #!/bin/tcsh -f
> # Build script to compile org mode lisp for different emacs versions
>
>
> #
> # Back up your $PATH
> #
>
> alias get_org_mode_lisp_dir_suffix '\emacs --version | \grep -oE '"'"'Emacs
> [0-9]+\.[0-9]+'"'"' | \awk '"'"'{print $2}'"'"' | \tr "." "_"'
>
> #** Build for emacs master
>
> #
> # Set the $PATH *here* to use the emacs master (built from latest in git)
> # I use something work proprietary like GNU Modules to do this
> #
>
> echo "\nBuilding for emacs version: "`\emacs --version | \grep -E 'Emacs
> [0-9]+\.[0-9]+'`"\n"
> make clean
> make
> set org_mode_lisp_dir = "lisp_"`get_org_mode_lisp_dir_suffix`
> if ( -d "${org_mode_lisp_dir}" ) then
>     \rm -rf ${org_mode_lisp_dir}
> endif
> \cp -rf lisp ${org_mode_lisp_dir}
>
> #** Build for emacs 24.5
>
> #
> # Set the $PATH *here* to use emacs 24.5
> # I use something work proprietary like GNU Modules to do this
> #
>
> echo "\nBuilding for emacs version: "`\emacs --version | \grep -E 'Emacs
> [0-9]+\.[0-9]+'`"\n"
> make clean
> make
> set org_mode_lisp_dir = "lisp_"`get_org_mode_lisp_dir_suffix`
> if ( -d "${org_mode_lisp_dir}" ) then
>     \rm -rf ${org_mode_lisp_dir}
> endif
> \cp -rf lisp ${org_mode_lisp_dir}
>
> unalias get_org_mode_lisp_dir_suffix
> unset {org_mode_lisp_dir}
>
> #
> # Restore your $PATH to point to your default emacs version
> #
>
> Part 4: Restart any one of the versions of emacs for which you compiled the
> org files in Part 3. The org stuff will work just fine as it would pick out
> the org files from the correct lisp_<<emacs-version-short>>/ directory.
>
> I hope all of this makes sense.

Thanks - makes perfect sense. My only question is the contrib
directory. I assume I simply also have to copy the files in the same
version specific lisp dir?

Rainer


>
>
>
> --
> Kaushal Modi
>
> On Fri, Oct 2, 2015 at 3:05 PM, Rainer M Krug <Rainer@krugs.de> wrote:
>
>> Kaushal Modi <kaushal.modi@gmail.com> writes:
>>
>> > @Stefan, sharing elpa/ between at least emacs 24.5 and emacs 25.x (git
>> > master) does not work as the complied .elc files are not compatible
>> between
>> > the two versions.
>>
>> Just jumping in as I have the two version problem.
>>
>> I am fine with most of my stuff managed by cask, therefore aware of
>> versions. But how can I manage org, which is via git? Any smart
>> suggestion how I can use this between two versions on one machine?
>>
>> Rainer
>>
>>
>> >
>> >
>> > --
>> > Kaushal Modi
>> >
>> > On Fri, Oct 2, 2015 at 11:54 AM, Stefan Monnier <
>> monnier@iro.umontreal.ca>
>> > wrote:
>> >
>> >> Yes, of course.
>> >>
>> >> Just like you can share it over NFS or any other file system.
>> >> You can share them even between different systems using different
>> >> Emacs versions, different processor architectures, and/or different
>> OSes.
>> >>
>> >> At least, if that leads to problems, then I'd recommend you file them
>> >> as bugs.
>> >>
>> >>
>> >>         Stefan
>> >>
>> >>
>> >>
>> >
>>
>> --
>> Rainer M. Krug
>> email: Rainer<at>krugs<dot>de
>> PGP: 0x0F52F982
>>
>

-- 
Rainer M. Krug
email: Rainer<at>krugs<dot>de
PGP: 0x0F52F982

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