Using Cedet with Tramp and projects on NFS mounts

Using Cedet with Tramp and projects on NFS mounts

[Suvayu Ali]

Hi all,

I am a relatively new Emacs user on GNU/Linux and loving it. I learned 
about CEDET from this list and tried it out. I need to work within a few 
frameworks developed in C++ and for code on my local machine it works 
perfectly. I have this in my .emacs to make that work.

> ;; cedet customisations for ROOT Data Analysis Framework
> (setq rootsys "~/root/include")
> (semantic-add-system-include rootsys 'c++-mode)
> (add-to-list 'auto-mode-alist (cons rootsys 'c++-mode))
> (add-to-list 'semantic-lex-c-preprocessor-symbol-file (concat rootsys "/include"))
> (add-to-list 'semantic-lex-c-preprocessor-symbol-file (concat rootsys "/ExRootAnalysis"))
> (add-to-list 'semantic-lex-c-preprocessor-symbol-file (concat rootsys "/ExRootAnalysis/ExRootAnalysis"))

But most of my work requires me to work on remote machines. So my 
question is, how do I setup semantic to search the directories in my 
project for tags when I am connected to the remote machine using Tramp 
like this,

/ssh:user@remote.host:~/path/to/my/project/

Thanks for any help on this.

PS: the remote machine is usually across the atlantic :P

-- 
Suvayu

Open source is the future. It sets us free.

Re: Using Cedet with Tramp and projects on NFS mounts

[Richard Riley]

Suvayu Ali <fatkasuvayu+linux@gmail.com> writes:

> Hi all,
>
> I am a relatively new Emacs user on GNU/Linux and loving it. I learned 
> about CEDET from this list and tried it out. I need to work within a few 
> frameworks developed in C++ and for code on my local machine it works 
> perfectly. I have this in my .emacs to make that work.
>
>> ;; cedet customisations for ROOT Data Analysis Framework
>> (setq rootsys "~/root/include")
>> (semantic-add-system-include rootsys 'c++-mode)
>> (add-to-list 'auto-mode-alist (cons rootsys 'c++-mode))
>> (add-to-list 'semantic-lex-c-preprocessor-symbol-file (concat rootsys "/include"))
>> (add-to-list 'semantic-lex-c-preprocessor-symbol-file (concat rootsys "/ExRootAnalysis"))
>> (add-to-list 'semantic-lex-c-preprocessor-symbol-file (concat rootsys "/ExRootAnalysis/ExRootAnalysis"))
>
> But most of my work requires me to work on remote machines. So my 
> question is, how do I setup semantic to search the directories in my 
> project for tags when I am connected to the remote machine using Tramp 
> like this,
>
> /ssh:user@remote.host:~/path/to/my/project/
>
> Thanks for any help on this.
>
> PS: the remote machine is usually across the atlantic :P

You might consider using sshfs if possible? 

http://fuse.sourceforge.net/sshfs.html

That way the "remoteness" of the remote file system would be totally
transparent to cedet.

Re: Using Cedet with Tramp and projects on NFS mounts

[Pierre Lorenzon]

Hi,

From: Suvayu Ali <fatkasuvayu+linux@gmail.com>
Subject: Using Cedet with Tramp and projects on NFS mounts
Date: Fri, 26 Jun 2009 14:45:24 -0700

> Hi all,
> 
> I am a relatively new Emacs user on GNU/Linux and loving it. I
> learned about CEDET from this list and tried it out. I need to
> work within a few frameworks developed in C++ and for code on
> my local machine it works perfectly. I have this in my .emacs
> to make that work.

  First you'd better post such questions on a dedicated cedet
  list where you'll find people knowing cedet features and
  details. But anyway ! 



> 
>> ;; cedet customisations for ROOT Data Analysis Framework
>> (setq rootsys "~/root/include")

   Simply try to replace it with : 

   (setq rootsys "/ssh:user@remote.host:~/path/to/my/project/")



>> (semantic-add-system-include rootsys 'c++-mode)
>> (add-to-list 'auto-mode-alist (cons rootsys 'c++-mode))
>> (add-to-list 'semantic-lex-c-preprocessor-symbol-file (concat
>> rootsys "/include"))
>> (add-to-list 'semantic-lex-c-preprocessor-symbol-file (concat
>> rootsys "/ExRootAnalysis"))
>> (add-to-list 'semantic-lex-c-preprocessor-symbol-file (concat
>> rootsys "/ExRootAnalysis/ExRootAnalysis"))

   Emacs is transparent to such operations. The goal of tramp
   is precisely to make it transparent. For instance I do
   things like that for mew or w3m. Directories are on remote
   machines in certain circumstances. When starting mew or w3m
   there are tramp operations in the background and I suspect
   that it will be similar with cedet.

   Anyway you'll perhaps want to switch from a situation to
   another, but it's not difficult to change the rootsys
   variable and reinitialize other variables from its value. 

> 
> But most of my work requires me to work on remote machines. So
> my question is, how do I setup semantic to search the
> directories in my project for tags when I am connected to the
> remote machine using Tramp like this,
> 
> /ssh:user@remote.host:~/path/to/my/project/
> 
> Thanks for any help on this.
> 
> PS: the remote machine is usually across the atlantic :P

  Humm !! In this case it might be slow ! But anyway not slower
  than your ssh connection ! Moreover, once all files would be
  loaded no more transactions will be performed. Anyway whith
  such a configuration I had to wait 10 or 15 minutes until
  everything is loaded. 


> 
> -- 
> Suvayu
> 
> Open source is the future. It sets us free.
> 
> 

Re: Using Cedet with Tramp and projects on NFS mounts

[suvayu ali]

2009/6/27 Pierre Lorenzon <devel@pollock-nageoire.net>:
> From: Suvayu Ali <fatkasuvayu+linux@gmail.com>
>>> ;; cedet customisations for ROOT Data Analysis Framework
>>> (setq rootsys "~/root/include")
>
>   Simply try to replace it with :
>
>   (setq rootsys "/ssh:user@remote.host:~/path/to/my/project/")
>

Thanks Pierre, that did it. However I have some other issues because
of how the framework I work with does things. I will have to find ways
to work around it.

>>> (semantic-add-system-include rootsys 'c++-mode)
<..snip..>

>   Anyway you'll perhaps want to switch from a situation to
>   another, but it's not difficult to change the rootsys
>   variable and reinitialize other variables from its value.
>

Thats very true. I will need different values for the rootsys variable
from time to time.

>> PS: the remote machine is usually across the atlantic :P
>
>  Humm !! In this case it might be slow ! But anyway not slower
>  than your ssh connection ! Moreover, once all files would be
>  loaded no more transactions will be performed. Anyway whith
>  such a configuration I had to wait 10 or 15 minutes until
>  everything is loaded.
>

It is indeed very slow to start. But after it loads up its workable :)

Thanks again for the pointer Pierre.

-- 
Suvayu

Open source is the future. It sets us free.

Re: Using Cedet with Tramp and projects on NFS mounts

[suvayu ali]

2009/6/26 Richard Riley <rileyrgdev@gmail.com>:
>
> You might consider using sshfs if possible?
>
> http://fuse.sourceforge.net/sshfs.html
>
> That way the "remoteness" of the remote file system would be totally
> transparent to cedet.
>

I could try that, but I have had problems having semantic parse
network mounted folders before. Maybe I'll give that a shot if I
figure out what I was doing wrong earlier. Thanks for the suggestion
Richard.

PS: your web page helped me quite a bit in figuring out cedet ;)

-- 
Suvayu

Open source is the future. It sets us free.