I am working on windows xp
I stored emacs in usb
I want to carry the .emacs file as well as binary files
what I tried are
(setenv “HOME” (format "%s" (getenv "emacspath")))
(setenv “HOME” (format "%s/" (getenv "emacspath")))
It seems works if I eval-expression in emacs
After setenv, I could notice setting env is works well by (getenv "home")
but I put the (setenv "home" (format "%s/" (getenv "emacspath")))
in "site-start.el" file in "site-lisp" folder, starting emacs says "Symbol's value as variable is void: "HOME"
Any ideas?
An easier way - just create a batch file on your USB drive where you can set all env variables you need. Then start emacs.exe from the batch.
For example if you want to run SBCL add the following lines to your batch
rem SBCL_HOME is required for SBCL
set SBCL_HOME=%utils%\Lisp\sbcl\1.0.29
set SBCL_RUN=%SBCL_HOME%\sbcl.exe
set SBCL_OPTIONS=--noinform
How about using default.el either as a symlink or as a simple elisp pinter to your file:
(load-file "/path/to/usb/.emacs")
Add following code to a file (e.g. c:/.emacs).
;; This function must be at begin
(defun zxy-relocate-dotemacs ()
"Relocate .emacs file"
(interactive)
(with-temp-buffer
(let (print-level print-length)
(insert (format "(load-file \"%s\")" load-file-name))
(if (file-exists-p "~/.emacs")
(message "[zxy] Don't need relocate .emacs file!")
(progn
(message "[zxy] Relocate .emacs file.")
(write-file "~/.emacs"))))))
(zxy-relocate-dotemacs)
;; Your configuration here
Open emacs and M-x load-file c:/.emacs.
Then it will relocate .emacs to c:/.emacs.
I use this when I copy my emacs to a new computer.
More information please visit my blog abuot emacs.
http://coordinate.sinaapp.com/?cat=3
Related
I'm trying to use the Edinburgh Concurrency Workbench (http://homepages.inf.ed.ac.uk/perdita/cwb/) with Emacs under Windows. I have placed the file cwb.el under C:\emacs\emacs-22.3\emacs-stuff. My .emacs file is located at C:\emacs and has the following content:
(setq load-path ; Look in my own library first.
(cons (expand-file-name "C:\emacs\emacs-22.3\emacsstuff")
load-path))
(autoload 'cwb "cwb" "Run a CWB process." t)
(autoload 'cwb-file-mode "cwb" "Major mode for editing CWB source." t)
(add-hook 'cwb-load-hook
(function
(lambda ()
(setq cwb-program-name "cwb7")))) ;; only necessary if your v7 isn't
;; called cwb
Yet, when I enter "M-x cwb", I get "Cannot open load file: cwb".
I tried to follow the instruction here: http://homepages.inf.ed.ac.uk/perdita/cwb/doc/emacs.html.
Thanks
In Emacs Lisp strings, backslash is an escape character, similar to C, so "C:\emacs\emacs-22.3\emacsstuff" ends up being "C:^[macs^[macs-22.3^[macsstuff". (You can try it with either M-: or M-x ielm.)
You can either write the path with forward slashes instead ("C:/emacs/emacs-22.3/emacsstuff") or use double backslashes ("C:\\emacs\\emacs-22.3\\emacsstuff").
I am trying to write an emacs function that will run make in the current directory, change to another directory and run make link all while outputting the text to a new buffer called make-output (original, eh?). Once complete, I'd like to move to the end of the make-output buffer so that I can see whether the compile was successful. Here is what I've got currently:
(defun remake-libefp-interface()
"Will run make in the current directory, change to the NWChem src directory and relink the binary."
(interactive)
(defvar T_pwd (getenv "PWD"))
(defvar T_top (concat (getenv "NWCHEM_TOP") "/src"))
(defvar cmd (concat "make; cd " T_top "; make link;cd " T_pwd))
(with-output-to-temp-buffer "*make-output*"
(shell-command cmd "*make-output*")
(pop-to-buffer "*make-output*")
(end-of-buffer)))
This recompiles correctly, but dumps me at the beginninng of make-output. I have also tried replacing the (end-of-buffer) with (goto-char (point-max)), but this also left me at the beginning.
Move the pop-to-buffer and (goto-char (point-max)) outside the with-output-to-temp-buffer.
I'm refactoring a bit in my Emacs set up and have come to the conclusion that I want to use a different init file than the default one. So basically, in my ~/.emacs file, I have this:
(load "/some/directory/init.el")
Up until now, that's been working just fine. However, now I want to redefine an old command that I've used for ages, which opens my init file:
(defun conf ()
"Open a buffer with the user init file."
(interactive)
(find-file user-init-file))
As you can see, this will open ~/.emacs no matter what I do. I want it to open /some/directory/init.el, or wherever the conf command itself is defined.
How would I do that?
You can use find-function for this:
(defun conf ()
"Open a buffer with the user init file."
(interactive)
(find-function this-command))
You can also use a sneakier way:
(defun conf () "blabla" (interactive) (find-file #$))
Because #$ works a bit like _FILE_ in C: it's replaced by the filename when the file is read.
This works for me.
;;; mymodule.el --- does my thing
(defvar mymodule--load-path nil "load path of the module")
...
(defun mymodule-load-datafile ()
"load a data file from the directory in which the .el resides"
(let* ((dir-name (concat
(file-name-directory mymodule--load-path)))
(data-file-name (concat dir-name "datafile.csv")))
(if (file-exists-p data-file-name)
... )))
;; remember load time path
(setq mymodule--load-path load-file-name)
(provide 'mymodule)
My .emacs contains
(setenv "PATH" (concat ".:/usr/texbin:/opt/local/bin" (getenv "PATH")))
(setq exec-path (append exec-path '(".:/usr/texbin:/opt/local/bin")))
(add-to-list 'load-path "/usr/local/share/emacs/site-lisp")
(require 'tex-site)
(load "auctex.el" nil t t)
(load "preview-latex.el" nil t t)
/usr/texbin is where latex/pdflatex/.. are located.
/opt/local/bin/ is where gs can be found.
And yet when I run preview-at-point, which apparently needs both latex and gs, I get
Preview-DviPS finished at Thu Dec 22 11:25:46
DviPS sentinel: Searching for program: No such file or directory, gs
which means that latex could be found all right, but not gs.
I am not sure whether setting exec-path is necessary, perhaps PATH is enough, but I've set it as a debugging measure.
Why can emacs not find gs even though the directory it's in is in both PATH and exec-path?
If you're setting $PATH inside your Emacs, you might well be on OS X. GUI applications are not started via your shell, so they see different environment variables.
Here's a trick which I use to ensure the $PATH inside Emacs is the same one I see if I fire up a terminal (but see "update" below):
(defun set-exec-path-from-shell-PATH ()
"Set up Emacs' `exec-path' and PATH environment variable to match that used by the user's shell.
This is particularly useful under Mac OSX, where GUI apps are not started from a shell."
(interactive)
(let ((path-from-shell (replace-regexp-in-string "[ \t\n]*$" "" (shell-command-to-string "$SHELL --login -i -c 'echo $PATH'"))))
(setenv "PATH" path-from-shell)
(setq exec-path (split-string path-from-shell path-separator))))
Then simply call the set-exec-path-from-shell-PATH function, perhaps from your Emacs init file. I keep that code on github, BTW.
Update: this code has now been improved and published as an elisp library called exec-path-from-shell; installable packages are available in MELPA.
Try replacing the second line with this:
(setq exec-path (append exec-path '("/usr/texbin" "/opt/local/bin")))
I hit a similar problem, but with a correct PATH, including trailing ´:´. It turned out the internal emacs shell program was missing, resulting in a ´Searching for program: No such file or directory´ message.
Fixed with
(setq shell-file-name "bash").
It appears you're missing a path separator : at the end of your path string.
Does anyone know how to configure Erlang emacs mode so that compiling a buffer [C-c C-k] writes the beam file to the ebin directory rather than the current directory ?
Thanks!
You might want to have a look to this thread on the Erlang Questions Mailing List:
http://www.erlang.org/pipermail/erlang-questions/2007-August/028367.html
Moreover, you should be able to compile your file in debug mode:
C-u C-c C-k
The erlang-compile command should support prefix arguments. You might want to have a look to:
http://www.gnu.org/software/emacs/manual/html_node/elisp/Prefix-Command-Arguments.html
If you set up your directory structure like so:
/
/src/
/ebin/
and place your module (e.g. "my_file.erl") in the "/src/" directory then compile it (C-c C-k) then Emacs should automatically put the beam into the "/ebin/" directory.
However, if your module isn't in a directory named "/src/" (or if the "ebin" directory is missing) the beam will be dropped alongside the source file.
To see exactly how this works take a peek at $ERL_TOP/lib/tools/emacs/erlang.el and search for "ebin". Here's what you'll find:
(defun inferior-erlang-compile-outdir ()
"Return the directory to compile the current buffer into."
(let* ((buffer-dir (directory-file-name
(file-name-directory (buffer-file-name))))
(parent-dir (directory-file-name
(file-name-directory buffer-dir)))
(ebin-dir (concat (file-name-as-directory parent-dir) "ebin"))
(buffer-dir-base-name (file-name-nondirectory
(expand-file-name
(concat (file-name-as-directory buffer-dir)
".")))))
(if (and (string= buffer-dir-base-name "src")
(file-directory-p ebin-dir))
(file-name-as-directory ebin-dir)
(file-name-as-directory buffer-dir))))
Not sure when this goody was added, but it was in OTP_R13B03 and it works for me in R14B03.