eshell - win32 - executable files

eshell - win32 - executable files

[matt]

This may be something that I need to do in the Windows registry, but...

How can I specify which files are executable. On a windows system there 
are the normal ones like .exe, .bat, .com, etc. What I want to do is to 
tell emacs that another type of file is executable, so that I can just 
type the filename and have it execute like any other command. 
Specifically, a perl script. I want to be able to execute say 
"myscript.pl" without having to type: perl path_to_script/myscript.pl. I 
have the file association set in explorer, and the path to the script is 
in my path. I can execute it in cmd.exe by typing myscript.pl, but not 
in eshell.

Any ideas?

TIA -- Matt
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Re: eshell - win32 - executable files

[John Wiegley]

>>>>> On Sat Jan 18, matt writes:

> This may be something that I need to do in the Windows registry,
> but...  How can I specify which files are executable. On a windows
> system there are the normal ones like .exe, .bat, .com, etc. What I
> want to do is to tell emacs that another type of file is
> executable, so that I can just type the filename and have it
> execute like any other command. Specifically, a perl script. I want
> to be able to execute say "myscript.pl" without having to type:
> perl path_to_script/myscript.pl. I have the file association set in
> explorer, and the path to the script is in my path. I can execute
> it in cmd.exe by typing myscript.pl, but not in eshell.

> Any ideas?

Configure the variable `eshell-binary-suffixes'.

John

Re: eshell - win32 - executable files

[matt]

John Wiegley wrote:
>>>>>>On Sat Jan 18, matt writes:
>>>>>
> 
>>This may be something that I need to do in the Windows registry,
>>but...  How can I specify which files are executable. On a windows
>>system there are the normal ones like .exe, .bat, .com, etc. What I
>>want to do is to tell emacs that another type of file is
>>executable, so that I can just type the filename and have it
>>execute like any other command. Specifically, a perl script. I want
>>to be able to execute say "myscript.pl" without having to type:
>>perl path_to_script/myscript.pl. I have the file association set in
>>explorer, and the path to the script is in my path. I can execute
>>it in cmd.exe by typing myscript.pl, but not in eshell.
> 
> 
>>Any ideas?
> 
> 
> Configure the variable `eshell-binary-suffixes'.
> 
> John

Thanks John. How do I do that? What I've done is not working. I found 
'eshell-binary-suffixes' in esh-ext.el, looks like this:

	(defcustom eshell-binary-suffixes
   	  (if (eshell-under-windows-p)
       	      '(".exe" ".com" ".bat" ".cmd" "")
            '(""))
         "*A list of suffixes used when searching for executable files."

I added ".pl" to the list. I tried load-file, load-library, and 
emacs-lisp-byte-compile-and-load. No luck. Is there somewhere else I 
should be setting this?

Thanks -- Matt

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Re: eshell - win32 - executable files

[John Wiegley]

>>>>> On Sun Jan 19, matt writes:

> 	(defcustom eshell-binary-suffixes (if
> (eshell-under-windows-p) '(".exe" ".com" ".bat" ".cmd" "") '(""))
> "*A list of suffixes used when searching for executable files."

> I added ".pl" to the list. I tried load-file, load-library, and
> emacs-lisp-byte-compile-and-load. No luck. Is there somewhere else
> I should be setting this?

Try this, in your .emacs:

(eval-after-load "esh-ext"
  '(progn (add-to-list 'eshell-binary-suffixes ".pl")))

John

Re: eshell - win32 - executable files

[matt]

John Wiegley wrote:
>>>>>>On Sun Jan 19, matt writes:
>>>>>
> 
>>	(defcustom eshell-binary-suffixes (if
>>(eshell-under-windows-p) '(".exe" ".com" ".bat" ".cmd" "") '(""))
>>"*A list of suffixes used when searching for executable files."
> 
> 
>>I added ".pl" to the list. I tried load-file, load-library, and
>>emacs-lisp-byte-compile-and-load. No luck. Is there somewhere else
>>I should be setting this?
> 
> 
> Try this, in your .emacs:
> 
> (eval-after-load "esh-ext"
>   '(progn (add-to-list 'eshell-binary-suffixes ".pl")))
> 
> John

Still no luck. Does this work for you?

-- Matt

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Re: eshell - win32 - executable files

[John Wiegley]

>>>>> On Sun Jan 19, matt writes:

> Still no luck. Does this work for you?

Hmm, once, when I used to use Windows machines, I was doing something
close to exactly this.  You definitely want to configure
`eshell-binary-suffixes'.  You can test it by using the "which"
command, followed by the name of your script.

Oh, wait, you must ALSO set `eshell-force-execution' to t.  :)

John

Re: eshell - win32 - executable files

[Sören Vogel]

Hi Matt,

might be done outside emacs, too:

my computer -- advanced -- environment variables -- PATHEXT

Sören.

Re: eshell - win32 - executable files

[matt]

Sören Vogel wrote:
> Hi Matt,
> 
> might be done outside emacs, too:
> 
> my computer -- advanced -- environment variables -- PATHEXT
> 
> Sören.

As I mentioned in the original post, the file *is* in my path. I just 
need to let eshell know that .pl files are executable.

-- Matt
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Re: eshell - win32 - executable files

[Sören Vogel]

> > my computer -- advanced -- environment variables -- PATHEXT

PATHEXT does not mean PATH but what extensions executable files
might have to be recognized by the shell. If eshell refers to
environmental variables, too, it might work.

Sören.

Re: eshell - win32 - executable files

[matt]

Sören Vogel wrote:
>>>my computer -- advanced -- environment variables -- PATHEXT
>>
> 
> PATHEXT does not mean PATH but what extensions executable files
> might have to be recognized by the shell. If eshell refers to
> environmental variables, too, it might work.
> 
> Sören.

You're right. Sorry, I didn't read your post close enough. 
Unfortunately, eshell doesn't seem to use that variable.

-- Matt

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Re: eshell - win32 - executable files

[Ehud Karni]

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

On Sat, 18 Jan 2003 22:01:50 GMT, matt <nwzmattXX@XXnetscape.net> wrote:
> 
> This may be something that I need to do in the Windows registry, but...
> 
> How can I specify which files are executable. On a windows system there 
> are the normal ones like .exe, .bat, .com, etc. What I want to do is to 
> tell emacs that another type of file is executable, so that I can just 
> type the filename and have it execute like any other command. 

I've seen this thread, and I think it went in the wrong direction.

Try to modify the 'executable-binary-suffixes' list like this:
    (add-to-list 'executable-binary-suffixes ".new-ext")
does it help ?

Ehud.


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Re: eshell - win32 - executable files

[Matt]

Ehud Karni wrote:
> -----BEGIN PGP SIGNED MESSAGE-----
> Hash: SHA1
> 
> On Sat, 18 Jan 2003 22:01:50 GMT, matt <nwzmattXX@XXnetscape.net> wrote:
> 
>>This may be something that I need to do in the Windows registry, but...
>>
>>How can I specify which files are executable. On a windows system there 
>>are the normal ones like .exe, .bat, .com, etc. What I want to do is to 
>>tell emacs that another type of file is executable, so that I can just 
>>type the filename and have it execute like any other command. 
> 
> 
> I've seen this thread, and I think it went in the wrong direction.
> 
> Try to modify the 'executable-binary-suffixes' list like this:
>     (add-to-list 'executable-binary-suffixes ".new-ext")
> does it help ?
> 

I think you mean eshell-binary-suffixes. If I add that to my .emacs I 
get an error on startup:

Symbol's value as variable is void: eshell-binary-suffixes

but evaluating it after eshell is loaded works. Unfortunately, that does 
not fix the problem. At least not by itsself. After looking over 
esh-ext.el again, I found another variable - eshell-force-execution - 
which needs to be not-nil. Changing the value to t works. Here's what it 
says in the file:

(defcustom eshell-force-execution nil
   "*If non-nil, try to execute binary files regardless of permissions.
This can be useful on systems like Windows, where the operating system
doesn't happen to honor the permission bits in certain cases; or in
cases where you want to associate an interpreter with a particular
kind of script file, but the language won't let you but a '#!'
interpreter line in the file, and you don't want to make it executable
since nothing else but Eshell will be able to understand
`eshell-interpreter-alist'."
   :type 'boolean
   :group 'eshell-ext)

I made all of the changes directly to esh-ext.el, byte-compiled, and 
restarted emacs. After that, I had to make sure that there was the 
"shabang" line in the .pl file(#!c:/perl/bin/perl.exe -w). I usually 
don't add this in windows, because explorer takes care of the file 
association, and it's not needed. Also, the -w is there(apart from being 
good perl programming practice) because of the DOS carriage return 
character. eshell - like a unix shell - will complain that it cannot 
find perl.exe^M . The alternative is to run dos2unix on the file.

Thank for all the help.

-- Matt

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