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Re: Emacs on Mac 10.7 (Lion): how to get PATH as in terminal?
From: |
Marius Hofert |
Subject: |
Re: Emacs on Mac 10.7 (Lion): how to get PATH as in terminal? |
Date: |
Sun, 23 Oct 2011 23:57:37 +0200 |
On 2011-10-23, at 23:17 , Perry Smith wrote:
>
> On Oct 23, 2011, at 3:58 PM, Marius Hofert wrote:
>
>> Hi,
>>
>> I know this is an old problem, but I still couldn't figure it out with the
>> tricks I found.
>> I work with the emacs 23.3 on Mac OS X 10.7.2 (Lion), installed from
>> http://emacsformacosx.com/
>> When I open a shell with M-x shell and type echo $PATH, I get:
>> /usr/bin:/bin:/usr/sbin:/sbin
>> When I do the same in Mac's Terminal, I get:
>> /Applications/Emacs.app/Contents/MacOS/:/usr/bin:/bin:/usr/sbin:/sbin:/usr/local/bin:/usr/X11/bin:/usr/texbin:/opt/local/bin:/opt/local/sbin
>>
>> Question: How do I get the same PATH in emacs than in the terminal?
>>
>> Trials:
>>
>> 1) fixpath.el:
>> (add-to-list 'load-path "~/.emacs.d/fixpath"); see
>> https://svn.fsg.ulaval.ca/svn-pub/vgoulet/emacs-modified/macos/tags/Emacs-23.3-modified-3/fixpath.el
>> (require 'fixpath)
>>
>> 2) emacs wiki (http://www.emacswiki.org/emacs/EmacsApp#toc2)
>> ;; add "defaults..." to /etc/profile:
>> if [ -x /usr/libexec/path_helper ]; then
>> eval `/usr/libexec/path_helper -s`
>> defaults write $HOME/.MacOSX/environment PATH "$PATH"
>> fi
>> ;; add the following to .emacs:
>> (add-to-list 'exec-path "/usr/bin")
>>
>> 3) another solution posted on the emacs wiki page:
>> ;; read in PATH from .bashrc (and add at least those directories)
>> ;; see http://www.emacswiki.org/emacs/EmacsApp#toc5
>> (if (not (getenv "TERM_PROGRAM"))
>> (setenv "PATH"
>> (shell-command-to-string "source $HOME/.bashrc && printf $PATH")))
>
> I did not download the emacs that you did and dig around so I am sorta half
> guessing.
>
> Recently while dinking with rvm, I discovered that bash is not being started
> with --login.
>
> Since the M-x shell has fewer parts in its path, I would suspect that the
> additional
> paths are being specified in /etc/profile. Without bash thinking it is a
> login shell,
> /etc/profile is not being sourced. One way is to start it with a - as the
> first character in
> arg0. The other way is to start it with --login.
Dear Perry,
thanks a lot for helping.
>
> To explore if this is right: find where the parts for longer path are being
> set. One
> choice is /etc/profile, another is your ~/.profile.
sorry, I should have put this in earlier. So here is my /etc/profile [you still
see the defaults write... from one of my trials]:
### /etc/profile ###
# System-wide .profile for sh(1)
if [ -x /usr/libexec/path_helper ]; then
eval `/usr/libexec/path_helper -s`
defaults write $HOME/.MacOSX/environment PATH "$PATH"
fi
if [ "${BASH-no}" != "no" ]; then
[ -r /etc/bashrc ] && . /etc/bashrc
fi
###############
Here is ~/.profile [the last export is to call the same emacs when typing
"emacs" in the Mac's terminal; otherwise, the preinstalled (old) emacs version
is called]:
### ~/.profile ###
[ -f ~/.bashrc ] && . ~/.bashrc;
# MacPorts Installer addition on 2011-09-30_at_10:26:19: adding an appropriate
PATH variable for use with MacPorts.
export PATH=$PATH:/opt/local/bin:/opt/local/sbin
# Finished adapting your PATH environment variable for use with MacPorts.
# make /Applications/Emacs.app/Contents/MacOS/emacs available when calling
"emacs"
export PATH=/Applications/Emacs.app/Contents/MacOS/:$PATH
###############
> If these parts are in the profile but
> not in your .bashrc, then we are likely on the right track.
My .bashrc only contains some aliases and export LC_CTYPE=en_US.UTF-8
>
> If that is the case, then review explicit-bash-args. You can customize them
> and add --login
> see if that works. I'm a bit surprised this isn't done in the stock version
> of the code.
Thanks for the hint!!! I found this (see
http://www-stat.wharton.upenn.edu/~buja/STAT-540/.emacs):
(setq explicit-bash-args (list "--login" "-i"))
I put it into .emacs and started emacs again. M-x shell now shows precisely the
same PATH as in the terminal.
The only thing I'm wondering is: If this is really the perfect solution, why is
it not mentioned on http://www.emacswiki.org/emacs/EmacsApp ? It seems to be
much simpler than the other solutions posted, and (as I wrote) the other
solutions even did not work for me.
Cheers,
Marius
>
> If you have a .profile,.bash_profile,
> or .bashrc, you can echo the path at the very top of each and open a new term
> window. This will
> tell you where / how PATH is being set as it goes through your sequence of
> login scripts.
>
> Hope this helps,
> pedz
>