Clojure in Emacs Seemingly Impossible
Curran
I would greatly appreciate any guidance on where to find a working and
complete set of instructions for how to set up Emacs with swank-
clojure. I am in Ubuntu.
I have followed exactly every step of the instructions on this page
http://dev.clojure.org/display/doc/Getting+Started+with+Emacs, and
also (with a fresh install of Emacs) the version using Git in the
comment on that page by Martin Blais. With both methods, when I
execute "M-x clojure-jack-in", the message "Starting swank server"
appears and hangs. Swank never starts, the message never changes, and
I don't see any error messages anywhere (not sure where to look, maybe
I'm missing them?).
I really would like to use Clojure for a significant project, but if I
can't get the dev environment working I'm hosed.
Also, if I can't get Emacs going, would anyone suggest an alternative
development tool? (I know there are lots, but I don't know which to
try first).
Thank you very much.
Best regards,
Curran
Brian Mosley
http://technomancy.us/149
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Kugathasan Abimaran
http://riddell.us/ClojureWithEmacsSlimeSwankOnUbuntu.html
"Know everything about something, and something about everything" -- Dame C.V. Wedgwood, English historian (1910-1997)
Michael Jaaka
it become popular when good ide with debugers, docs, highlighting and
refactoring appeared. Clojure should have such ide, my vote right now
is for clooj, since this is the only one ide written in supported
language itself. Just combine your achivments like paraedit, syntax
hihglighment, debbuger to put it in clooj. Look at #F also is a nice
languge and it is still evloving but one think it is already ahead, it
has good ide. On commercial grounds #F seems to be more mature.
Sam Aaron
I made this video for hacking Overtone with Emacs:
However, Overtone can just be viewed as an example project - it's really just a description of how to get a working Clojure/Emacs setup.
Sam
David Nolen
Vincent
Phil Hagelberg
I don't know why an error message doesn't show, but the swank clojure readme explains a fallback method (lein swank + M-x slime-connect) that you could try.
-Phil
kjeldahl
+Clojure is less than idea when working with multiple threads (like
hosting and running a Jetty server). I believe this is mostly related
to how Java and Emacs+Slime handles input/output redirection. I went
crazy trying to figure out what output went where, and have settled
with running Clojure outside of Emacs for the cases where I need to do
server like / threading like things where I need to log to stdout/
stderr. In my case, outside Emacs means a simple "lein repl".
YMMV.
Thanks,
Marius K.
Sam Aaron
In Overtone we have threads coming out of our ears. However, I don't really have a problem with monitoring output. I use Emacs + cake, and all output for the current REPL process end up in the REPL within Emacs and the output for all other threads ends up in .cake/cake.log which I just simply tail in a separate (tiled) terminal. I'm pretty sure lein has a similarly sensible approach for dealing with output from the non-REPL threads.
Sam
kjeldahl
lein setup, I believe most of it goes into a swank buffer of some
sort, which also contain a lot of other (non-related) output, and
exactly where in that buffer it also ends up seems a bit
undeterministic. But again, just my experiences, in case others
experience similar issues.
Thanks,
Marius K.
Phil Hagelberg
<mariusauto-...@kjeldahl.net> wrote:
> with the lein setup, I believe most of it goes into a swank buffer of some
> sort, which also contain a lot of other (non-related) output, and
> exactly where in that buffer it also ends up seems a bit
> undeterministic.
I think it's consistent. It should always go to the stdout of the lein
swank process if it's from a thread other than the one hooked into the
slime repl. If you started it with M-x clojure-jack-in, that will be
the *swank* buffer.
It sounds like this isn't really what you want though. Would it be
better if every time a new connection opened from Emacs it caused the
root value of *out* to change?
-Phil
kjeldahl
differently than mine, but there's lots of stuff that I did not but
there, and which I would not have there.
My issues with this is related to running servers and catching debug
output from it while it is running (yeah, I really should use a log
file, but that's another topic). When I tried doing this from within
Emacs, it became a detective hunt trying to figure it all out (and I
probably never did). When I run it in a normal shell (lein repl),
everything works as expected, and all threads output to the console
they way I would expect.
I wrote more details about it in the following post to this list:
http://groups.google.com/group/clojure/browse_thread/thread/55849f0296530de8/9f2ca18530a4e28c?lnk=gst&q=kjeldahl#9f2ca18530a4e28c
I'm no expert, but if I had to choose between getting all output in a
file, or some output in the repl buffer and some in *swank*, I would
prefer the former (which is what I believe cake actually does).
Having said all this, I'm still thankful for your work, and my mention
of this issue is just to try to help others who are just getting
started.
Thanks,
Marius K.
On Sep 11, 11:23 pm, Phil Hagelberg <p...@hagelb.org> wrote:
> On Sun, Sep 11, 2011 at 9:09 AM, kjeldahl
>
Sam Aaron
On 11 Sep 2011, at 22:42, kjeldahl wrote:
>
> I'm no expert, but if I had to choose between getting all output in a
> file, or some output in the repl buffer and some in *swank*, I would
> prefer the former (which is what I believe cake actually does).
Used from within Emacs, cake places all output from the REPL thread into the Slime REPL buffer and output from all other threads into .cake/cake.log
So perhaps this isn't exactly what you want…
Sam
Phil Hagelberg
<mariusauto-...@kjeldahl.net> wrote:
> Have you looked at the *swank* buffer? Maybe your's is looking
> differently than mine, but there's lots of stuff that I did not but
> there, and which I would not have there.
Everything in there is output from lein jack-in. Much of it is elisp,
since Leiningen spits out the elisp that's needed to bootstrap a
connection. But it is consistent. (In 1.3.3 it will need a lot less
elisp.) On top of the root value of *out* (which is always stdout of
lein), each swank thread necessarily must bind *out* to a writer
connected to the slime socket, otherwise the repl wouldn't get hooked
up.
> My issues with this is related to running servers and catching debug
> output from it while it is running (yeah, I really should use a log
> file, but that's another topic). When I tried doing this from within
> Emacs, it became a detective hunt trying to figure it all out (and I
> probably never did). When I run it in a normal shell (lein repl),
> everything works as expected, and all threads output to the console
> they way I would expect.
>
> I wrote more details about it in the following post to this list:
>
> http://groups.google.com/group/clojure/browse_thread/thread/55849f0296530de8/9f2ca18530a4e28c?lnk=gst&q=kjeldahl#9f2ca18530a4e28c
>
> I'm no expert, but if I had to choose between getting all output in a
> file, or some output in the repl buffer and some in *swank*, I would
> prefer the former (which is what I believe cake actually does).
Putting *all* output in a file (so nothing is visible in the repl) is
never going to be the default behaviour. The question is whether swank
should use alter-var-root instead of binding to change the value of
*out*. I don't personally work with any multithreaded programs that
don't use a logging framework, so I haven't run into this myself, but
it seems like as long as you're not relying on the stdout of the
process it might be better to use the alter-var-root approach, at
least when swank is launched via lein. Does that sound helpful?
-Phil
Daniel Pittman
> I would greatly appreciate any guidance on where to find a working and
> complete set of instructions for how to set up Emacs with swank-
> clojure. I am in Ubuntu.
>
> I have followed exactly every step of the instructions on this page
> http://dev.clojure.org/display/doc/Getting+Started+with+Emacs, and
> also (with a fresh install of Emacs) the version using Git in the
> comment on that page by Martin Blais. With both methods, when I
> execute "M-x clojure-jack-in", the message "Starting swank server"
> appears and hangs. Swank never starts, the message never changes, and
> I don't see any error messages anywhere (not sure where to look, maybe
> I'm missing them?).
I do believe that is the same error I recently hit. To use
`clojure-jack-in` you need a quite recent version of the `lein-swank`
plugin. You *also* need to make sure that nothing else on the load
path has an older version. That means anything in your current
project, *and* any either leinengein plugins. (I got bitten be the
later.)
You need to see ";;; proceed to jack in" output from `lein jack-in
1234` for that all to work together.
This was tricky to diagnose, and the bundled version in the other
plugin stumped me for quite some time.
Daniel
--
♲ Made with 100 percent post-consumer electrons
Sean Toner
I'm in the process of learning Clojure and emacs as well and have run
into a bit of difficulty as well, though I have a slightly different
problem. I grabbed the 23.3 version of emacs from their ftp site and
did NOT use the emacs starter kit. I discovered that the version of
package.el that came with the emacs starter kit (at least the non git
pulled one) was not playing nice with a few things. So instead, I
just copied the package.el from the marmalade website and followed the
instructions there (http://marmalade-repo.org).
Once package.el and marmalade were set up (package.el in my ~/.emacs.d
folder, and the appropriate load code in my ~/.emacs file), I was
ready to load clojure-mode. Just do:
M-x package-refresh-contents
M-x package-install
And when prompted, type in clojure-mode and hit enter. That should
install clojure-mode for you. And then finally, if you want to use
clojure-jack-in, make sure you have both leiningen and the swank-
clojure plugin installed. Leiningen was pretty easy to install, just
go to https://github.com/technomancy/leiningen and follow the
instructions. Once leiningen is installed and set in your $PATH, then
you can install the swank-clojure plugin.
lein plugin install swank-clojure "1.3.2"
Now that you have leiningen, you can create a simple project with
'lein new my_clj_project', and it will generate a skeleton project for
you. Since leiningen uses some Maven under the covers, it uses the
maven-style convention of putting your source code under the src
folder, and your namespaces are named starting from that path
directory.
Once you have a simple clojure file, you can try out the swank
server. In emacs, you "visit" a file:
C-x C-f
And in the minibuffer, you can type the path to your file (it has some
nifty code completion). Or if you prefer, you can hit C-F10 to open
the menu bar (if it's not there already), and just click Open and
browse to your file. Once the file is open in a buffer in emacs, now
you can try to connect to swank.
M-x clojure-jack-in
If all goes well, you should see the swank server start up on port
4005 and you will have a REPL to play in. There should be a buffer
called *swank* with messages from the swank server if it connected or
not.
My problem however is that I can't seem to load my namespace(s) into
the swank REPL. I tried C-c C-l, but that only seemed to load some
definitions from my namespace (it didn't load any of my
(defrecords ...) I noticed). I tried in the REPL to do a (use
'my_project.myfile), but that still didn't appear to load anything
from my namespace. Not being able to load namespaces from my
leiningen project makes the swank REPL nearly useless to me. I can
easily start a REPL through the command line with just the clojure jar
or with the clojure plugin for jEdit. I suppose I could highlight all
my code and eval it, but that seems silly.
But anyway, hope that helps some. And, now a shameless plug....feel
free to drop by my little blog site http://underaboddhitree.blogspot.com.
It's a little of everything, but mostly geared towards python and my
learning experience with clojure. I think that most blogs you see
come from the Clojure masters...but sometimes I think they may have
lost sight of a new clojurian's experience. I have no lisp
background, except a 3 week crash course on lisp in my AI class in
college several years ago. I also have zero experience with emacs
except the last 2 weeks or so. Nor am I a functional master in any
regard, and Clojure is the first functional language I have started to
learn.
But for me, the reward is worth the challenge.
On Sep 10, 11:29 am, Curran <curran.kelle...@gmail.com> wrote:
> Greetings,
>
> I would greatly appreciate any guidance on where to find a working and
> complete set of instructions for how to set up Emacs with swank-
> clojure. I am in Ubuntu.
>
Curran
Wow, thank you all so much for the insightful responses to my inquiry!
I really appreciate the supportive community.
I developed a small web app in Clooj over the weekend and was very
impressed by it! A very cool idea to write the IDE for the language,
in the language, with the essential powerful and useful features and
no cruft at all. Nice tool!
@Michael Jaaka I like your attitude toward this - that when there is
an effective IDE tailored to the language, then the language will
flourish, and that Clooj in the future could play the same role for
Clojure as Eclipse and Netbeans did for Java (in making it accessible
and usable for a generation of programmers).
I haven't touched Clojure for about a year and I am so impressed with
all that has happened in it's development since then. It is a
technology with a bright future for sure!
I will keep battling with the Emacs setup, thanks again for the
support.
Best,
Curran
On Sep 11, 5:13 am, Sean Toner <placeofthe...@gmail.com> wrote:
> Hi Curran,
>
> I'm in the process of learning Clojure and emacs as well and have run
> into a bit of difficulty as well, though I have a slightly different
> problem. I grabbed the 23.3 version of emacs from their ftp site and
> did NOT use the emacs starter kit. I discovered that the version of
> package.el that came with the emacs starter kit (at least the non git
> pulled one) was not playing nice with a few things. So instead, I
> just copied the package.el from the marmalade website and followed the
> instructions there (http://marmalade-repo.org).
>
> Once package.el and marmalade were set up (package.el in my ~/.emacs.d
> folder, and the appropriate load code in my ~/.emacs file), I was
> ready to load clojure-mode. Just do:
>
> M-x package-refresh-contents
> M-x package-install
>
> And when prompted, type in clojure-mode and hit enter. That should
> install clojure-mode for you. And then finally, if you want to use
> clojure-jack-in, make sure you have both leiningen and the swank-
> clojure plugin installed. Leiningen was pretty easy to install, just
finbeu
Also, if I can't get Emacs going, would anyone suggest an alternative
development tool? (I know there are lots, but I don't know which to
try first).
- Finn
kjeldahl
As for how I would like to have it, I would like to have all output
from all threads appear in the emacs repl buffer, similar to how it
behaves in "console" mode, and that is what I haven't figured out how
to do or found any workaround for, except not running it from an emacs
repl. Assuming that is not easy, or even possible, right now, I'll
stick with a simple repl console for the server/threaded stuff.
Thanks,
Marius K.
Harrison Maseko
mdave
> Follow these instructions, it will work..http://riddell.us/ClojureWithEmacsSlimeSwankOnUbuntu.html
>
Add the following:
(defproject test-project "0.1.0"
:description "Test Project"
:dependencies [[org.clojure/clojure "1.2.0-master-SNAPSHOT"]
[org.clojure/clojure-contrib "1.2.0-SNAPSHOT"]]
:dev-dependencies [[swank-clojure "1.2.1"]])
It isn't clear to me if that should be added *after* the
(defproject...
at the beginning of project.clj, or in place of the default
(defproject..., but in any case I tried both ways. I always get
the following error:
Downloading: org/clojure/clojure/1.2.0-master-SNAPSHOT/clojure-1.2.0-
master-SNAPSHOT.pom from clojars
Downloading: org/clojure/clojure-contrib/1.2.0-SNAPSHOT/clojure-
contrib-1.2.0-SNAPSHOT.pom from clojars
Downloading: org/clojure/clojure/1.2.0-master-SNAPSHOT/clojure-1.2.0-
master-SNAPSHOT.jar from clojars
Downloading: org/clojure/clojure-contrib/1.2.0-SNAPSHOT/clojure-
contrib-1.2.0-SNAPSHOT.jar from clojars
An error has occurred while processing the Maven artifact tasks.
Diagnosis:
Unable to resolve artifact: Missing:
----------
1) org.clojure:clojure:jar:1.2.0-master-SNAPSHOT
Try downloading the file manually from the project website.
Then, install it using the command:
mvn install:install-file -DgroupId=org.clojure -
DartifactId=clojure -Dversion=1.2.0-master-SNAPSHOT -Dpackaging=jar -
Dfile=/path/to/file
Alternatively, if you host your own repository you can deploy the
file there:
mvn deploy:deploy-file -DgroupId=org.clojure -
DartifactId=clojure -Dversion=1.2.0-master-SNAPSHOT -Dpackaging=jar -
Dfile=/path/to/file -Durl=[url] -DrepositoryId=[id]
Path to dependency:
1) org.apache.maven:super-pom:jar:2.0
2) org.clojure:clojure:jar:1.2.0-master-SNAPSHOT
2) org.clojure:clojure-contrib:jar:1.2.0-SNAPSHOT
Try downloading the file manually from the project website.
...
I'm brand new to clojure and really want to get it working according
to this tutorial, and its a shame to have to stop after I've gotten
this far. I'd really appreciate any advice on how to get this
working. TIA.
Phil Hagelberg
> On Sep 10, 9:48 pm, Kugathasan Abimaran <k.abima...@gmail.com> wrote:
>> Follow these instructions, it will work..http://riddell.us/ClojureWithEmacsSlimeSwankOnUbuntu.html
>>
>
> Sadly, the instructions break right where it says:
Those instructions are badly out of date. Please try the official documentation:
https://github.com/technomancy/swank-clojure
-Phil
Matthew Boston
site. I just setup a fresh emacs install from scratch (using Phils
starter-kit http://technomancy.us/153 and it works flawlessly; and I'm
new to emacs this week).
mdave - Your dependencies are way old, try this instead.
(defproject test-project "0.1.0"
:description "Test Project"
:dev-dependencies [[swank-clojure "1.3.3"]])
Bill Robertson
of instructions out there, and N-1 of them are out of date. And even
the Nth one is incomplete. "Step 1: Install clojure-mode either from
Marmalade or from git."
What if you don't know how to do that? So you click through to the
'Marmelade' site. Step 1: "First install package.el" with a link to
package.el and no other info.
Initially I ran into issues trying to get it set up, and finally I
just decided to run 'lein repl' and just edit in emacs. This is a
little inconvenient though. I finally got it working yesterday, and
then after about five minutes of using it, it just sort of stopped
working. No clue why. Back to 'lein repl' in an attempt to get
something useful done for the afternoon.
Step 1: In case anybody reads this; I think I did this, although this
will no doubt become out of date. ;-)
Download package.el from the marmelate site. Do not download the other
one. Create an .emacs.d directory under your home dir, and save
package.el there.
Then add the following to your .emacs file in your home dir.
(add-to-list 'load-path "~/.emacs.d/")
(require 'package)
(add-to-list 'package-archives '("marmalade" . "http://marmalade-
repo.org/packages/"))
(package-initialize)
On Oct 30, 5:34 pm, Phil Hagelberg <p...@hagelb.org> wrote:
Phil Hagelberg
<billrob...@gmail.com> wrote:
> Which is exactly the problem with Clojure in Emacs. There are N sets
> of instructions out there, and N-1 of them are out of date. And even
> the Nth one is incomplete. "Step 1: Install clojure-mode either from
> Marmalade or from git."
Do you find the clojure-mode readme sufficient?
https://github.com/technomancy/clojure-mode/blob/master/README.md
Maybe Clojure wiki should just point to that so it's all in one place.
-Phil
Bill Robertson
should refer to that page.
Thanks!
On Oct 30, 8:47 pm, Phil Hagelberg <p...@hagelb.org> wrote:
> On Sun, Oct 30, 2011 at 5:43 PM, Bill Robertson
>