Scala & Emacs?

I tend to open a shell (M-x shell RET) then type something like:

scala -classpath lib/anylayout.jar:lib/fj.jar RET

From there I can type stuff and use M-p and M-n to scroll up and down
through previous lines that I've typed.

If I always needed the same classpath I'd probably do:

echo "#!/bin/bash
scala -classpath lib/anylayout.jar:lib/fj.jar" > repl.sh
chmod +x repl.sh

Then run that via ./repl.sh

I tend to have a build.sh for building, so I do M-x compile RET cd
~/myproj && ./build.sh

I have these set up to allow emacs to make compile errors from maven
builds clickable, one specially for Scala compile errors from maven
builds:

(add-to-list 'compilation-error-regexp-alist-alist '(mvn
"^\\(.*\\):\\[\\([0-9]+\\),\\([0-9]+\\)\\]" 1 2 3 2 1))
(add-to-list 'compilation-error-regexp-alist-alist '(mvnscala
"^\\(.*\\):\\([0-9]+\\): .*" 1 2))
(setq compilation-error-regexp-alist '(mvn mvnscala))

2009/2/13 Normen Müller :
> He,
>
> I have a Scala eclipse project with some referenced libraries and more than
> one source folder configured.
>
> Now --- due to lack of memory on my laptop --- I would like to use emacs &
> Scala mode to keep on developing. I installed the Scala emacs mode, but how
> do I configure the interpreter to pre-load some libraries cause otherwise I
> can't run/ compile my code. Or do I have to use sth. like ant scripts
> instead?
>
> Cheers,
> --
> Normen Müller
>
>

On Feb 13, 2009, at 12:41 PM, Ricky Clarkson wrote:
> echo "#!/bin/bash
> scala -classpath lib/anylayout.jar:lib/fj.jar" > repl.sh
> chmod +x repl.sh
>
> Then run that via ./repl.sh

Thanks that works, I have to compile the code first though. Running
such a script sets the classpath variable right, but then loading a
file, "scala" complains, for example:

scala> :load /Users/nmueller/scaup/test/io/FilesTest.scala

:1: error: illegal start of definition
package scaup.test.io
^

> I tend to have a build.sh for building, so I do M-x compile RET cd
> ~/myproj && ./build.sh

Therefore you also set up a make file?

> I have these set up to allow emacs to make compile errors from maven

I don't use maven. Never did. Maybe I should have a look into it.

Cheers,
--
Normen Müller

Norman,

On Fri, 2009-02-13 at 13:24 +0100, Normen Müller wrote:
[ . . . ]
> Therefore you also set up a make file?

I would have thought that Gant, Gradle, SCons or even Ant were better
choices for dependency management than Make?

> > I have these set up to allow emacs to make compile errors from maven
>
> I don't use maven. Never did. Maybe I should have a look into it.

Or Gradle (or Gant)?

(And yes, I am involved with both Gant and Gradle development -- however
the reason for their existence is to progress build and dependency
management on from the tools that went before.)

Yes, you have to compile the code first, that's true of all Scala code
(other than scripts and interpreter commands). I assume you would
like to start an interpreter to play with the code you've already
compiled and to prototype new code interactively.

2009/2/13 Normen Müller :
> On Feb 13, 2009, at 12:41 PM, Ricky Clarkson wrote:
>>
>> echo "#!/bin/bash
>> scala -classpath lib/anylayout.jar:lib/fj.jar" > repl.sh
>> chmod +x repl.sh
>>
>> Then run that via ./repl.sh
>
> Thanks that works, I have to compile the code first though. Running such a
> script sets the classpath variable right, but then loading a file, "scala"
> complains, for example:
>
> scala> :load /Users/nmueller/scaup/test/io/FilesTest.scala
>
> :1: error: illegal start of definition
> package scaup.test.io
> ^
>
>> I tend to have a build.sh for building, so I do M-x compile RET cd
>> ~/myproj && ./build.sh
>
> Therefore you also set up a make file?
>
>> I have these set up to allow emacs to make compile errors from maven
>
> I don't use maven. Never did. Maybe I should have a look into it.
>
> Cheers,
> --
> Normen Müller
>
>

On Fri, Feb 13, 2009 at 3:33 AM, Normen Müller <n.mueller@jacobs-university.de> wrote:

Now --- due to lack of memory on my laptop --- I would like to use emacs & Scala mode to keep on developing.  I installed the Scala emacs mode, but how do I configure the interpreter to pre-load some libraries cause otherwise I can't run/ compile my code.  Or do I have to use sth. like ant scripts instead?

Since you installed the emacs Scala mode, would you mind giving me a clue how to do it (for XEmacs on Linux)? I looked at the README file included with the Scala distribution, and I took a crack at it, but I can't get it to work. I copied all the scala ".el" files to a directory under my home directory. Then I put the following in my .emacs file:

(add-to-list 'load-path "/home/paielli/scala/xemacs") ; directory with .el files
(require 'scala-mode-auto)

But this doesn't seem to work. My xemacs installation is on a network that I have no control over (I don't even know where to find it in the filesystem). Also, I am barely familiar with emacs lisp. Thanks.

Russ P.

I use scala with Emacs on Linux.

Last time I checked, it did not work with XEmacs though.

On Sun, Feb 15, 2009 at 4:04 PM, Russ Paielli <russ.paielli@gmail.com> wrote:

On Fri, Feb 13, 2009 at 3:33 AM, Normen Müller <n.mueller@jacobs-university.de> wrote:

Now --- due to lack of memory on my laptop --- I would like to use emacs & Scala mode to keep on developing.  I installed the Scala emacs mode, but how do I configure the interpreter to pre-load some libraries cause otherwise I can't run/ compile my code.  Or do I have to use sth. like ant scripts instead?

Since you installed the emacs Scala mode, would you mind giving me a clue how to do it (for XEmacs on Linux)? I looked at the README file included with the Scala distribution, and I took a crack at it, but I can't get it to work. I copied all the scala ".el" files to a directory under my home directory. Then I put the following in my .emacs file:

(add-to-list 'load-path "/home/paielli/scala/xemacs") ; directory with .el files
(require 'scala-mode-auto)

But this doesn't seem to work. My xemacs installation is on a network that I have no control over (I don't even know where to find it in the filesystem). Also, I am barely familiar with emacs lisp. Thanks.

Russ P.

I use emacs + maven (using ant as well) as my "make" system + the provided
scala-mode + some minor custom elisp .el work + exuberant ctags + a few code
development centric sundry emacs modes = what I think is a fine development
system.

I'm not blogger but this weekend I'm going to blog "How I develop in Scala"
and go over my setup and hopefully someone will find some value out of it..
Its not for everyone, but I claim its equal or better then the alternatives
available today. BTW I also believe that the maturation of the Eclipse
plugin would exceed my setup in desired feature/function for the vast
majority of people. Not for me, however, True Dino.

I just need to tweak a couple of indentation issues...

But you can develop very effectively with the above combo.

Normen Müller-2 wrote:
>
> He,
>
> I have a Scala eclipse project with some referenced libraries and more
> than one source folder configured.
>
> Now --- due to lack of memory on my laptop --- I would like to use
> emacs & Scala mode to keep on developing. I installed the Scala emacs
> mode, but how do I configure the interpreter to pre-load some
> libraries cause otherwise I can't run/ compile my code. Or do I have
> to use sth. like ant scripts instead?
>
> Cheers,
> --
> Normen Müller
>
>
>

On Feb 17, 2009, at 8:09 PM, Grey wrote:
> I'm not blogger but this weekend I'm going to blog "How I develop in
> Scala"
> and go over my setup and hopefully someone will find some value out
> of it..

I am highly interested in this blog post. Please post the link as
soon as you are done. In turn I'll send you my feedback on how good
you explained and if I could manage to reproduce. Thanks in advance.

Cheers,
--
Normen Müller

What he said.

2009/2/17 Normen Müller <normen.mueller@googlemail.com>

On Feb 17, 2009, at 8:09 PM, Grey wrote:

I'm not blogger but this weekend I'm going to blog "How I develop in Scala"
and go over my setup and hopefully someone will find some value out of it..

I am highly interested in this blog post.  Please post the link as soon as you are done.  In turn I'll send you my feedback on how good you explained and if I could manage to reproduce.  Thanks in advance.

Cheers,
--
Normen Müller

Part - I Scala and basic emacs.

http://thegreylensmansview.blogspot.com/

I'm not a blogger ... First go has way too much verbiage and little
substance I know. The next one about emacs+scala+maven will be specific and
to the point. Promise.

Ray

Normen Mueller wrote:
>
> On Feb 17, 2009, at 8:09 PM, Grey wrote:
>> I'm not blogger but this weekend I'm going to blog "How I develop in
>> Scala"
>> and go over my setup and hopefully someone will find some value out
>> of it..
>
> I am highly interested in this blog post. Please post the link as
> soon as you are done. In turn I'll send you my feedback on how good
> you explained and if I could manage to reproduce. Thanks in advance.
>
> Cheers,
> --
> Normen Müller
>
>
>
>
>
>
>

That's great, thanks! I haven't used Emacs in many years, it's fun to play with it again. ;) I'm using Aquamacs Emacs on the Mac, and it's working well. I'm not sure if I'll switch from NetBeans, but it's great to have that alternative. I also like yasnippet, that's pretty useful.
Looking forward to the second part!

Robert

On Tue, Feb 17, 2009 at 8:29 PM, Grey <ray.racine@gmail.com> wrote:

Part - I Scala and basic emacs.

http://thegreylensmansview.blogspot.com/

I'm not a blogger ... First go has way too much verbiage and little
substance I know.  The next one about emacs+scala+maven will be specific and
to the point.  Promise.

Ray



Normen Mueller wrote:
>
> On Feb 17, 2009, at 8:09 PM, Grey wrote:
>> I'm not blogger but this weekend I'm going to blog "How I develop in
>> Scala"
>> and go over my setup and hopefully someone will find some value out
>> of it..
>
> I am highly interested in this blog post.  Please post the link as
> soon as you are done.  In turn I'll send you my feedback on how good
> you explained and if I could manage to reproduce.  Thanks in advance.
>
> Cheers,
> --
> Normen Müller
>
>
>
>
>
>
>

--
View this message in context: http://www.nabble.com/Scala---Emacs--tp21994710p22070391.html
Sent from the Scala - User mailing list archive at Nabble.com.

May be that could help some of you
http://github.com/stevej/emacs/tree/75d4f10652ec6ddc5ed7a4019237cce36f6488ba/scala-mode

On Wed, Feb 18, 2009 at 03:55, Robert Kosara <rkosara@gmail.com> wrote:

That's great, thanks! I haven't used Emacs in many years, it's fun to play with it again. ;) I'm using Aquamacs Emacs on the Mac, and it's working well. I'm not sure if I'll switch from NetBeans, but it's great to have that alternative. I also like yasnippet, that's pretty useful.
Looking forward to the second part!

Robert

On Tue, Feb 17, 2009 at 8:29 PM, Grey <ray.racine@gmail.com> wrote:

Part - I Scala and basic emacs.

http://thegreylensmansview.blogspot.com/

I'm not a blogger ... First go has way too much verbiage and little
substance I know.  The next one about emacs+scala+maven will be specific and
to the point.  Promise.

Ray



Normen Mueller wrote:
>
> On Feb 17, 2009, at 8:09 PM, Grey wrote:
>> I'm not blogger but this weekend I'm going to blog "How I develop in
>> Scala"
>> and go over my setup and hopefully someone will find some value out
>> of it..
>
> I am highly interested in this blog post.  Please post the link as
> soon as you are done.  In turn I'll send you my feedback on how good
> you explained and if I could manage to reproduce.  Thanks in advance.
>
> Cheers,
> --
> Normen Müller
>
>
>
>
>
>
>

--
View this message in context: http://www.nabble.com/Scala---Emacs--tp21994710p22070391.html
Sent from the Scala - User mailing list archive at Nabble.com.

On Feb 18, 2009, at 2:29 AM, Grey wrote:
> Part - I Scala and basic emacs.
>
> http://thegreylensmansview.blogspot.com/
>
> I'm not a blogger ... First go has way too much verbiage and little
> substance I know. The next one about emacs+scala+maven will be
> specific and
> to the point. Promise.

Thanks Grey! I'll try it out asap.

Cheers,
--
Normen Müller