I know Emacs has some sort of integration with gdb (though I never used it) to jump through files as you debug a program. I'd like to do the same with Ruby programs.
As erenon said, use ruby debug, which provides a library for emacs that lets you use it just as gdb.
Install rdebug by issuing this command on your terminal(the sudo is optional, depending on your system):
<sudo> gem install ruby-debug
You then need to download the ruby-debug-extra file from rubyforge, and install it in the standard way.
sh ./configure
make
make test # optional, but a good idea
sudo make install
This gives you the elisp files for the interaction with rdebug, plus documentation for ruby-debug that can be viewed from within emacs.
AJ
There is another emacs to ruby-debug interface. See https://github.com/rocky/emacs-dbgr/wiki .
More generally, it works with other ruby debuggers and other debuggers in general.
You may want use rdebug.
I am getting "Cannot open load file: gdb-ui" in GNU Emacs 23.1.50.1 (x86_64-apple-darwin10.0.0, NS apple-appkit-1038.11) of 2009-10-31
I was stuck with same problem with gdb-ui, but I found the solution: I downloaded gdb-ui.el from here and put it into ruby-debug-extra/emacs dir... then I've adjusted Makefiles to point to this file before any other rdebug*.el files. After this step you'll get make working. Since I'm using emacs-snapshot and gdb mode is available already in my emacs environment, this issue is only about to build rdebug mode. After this I've installed it with "sudo make install" and it works perfectly :) Don't forget to add (require 'rdebug) to your ~/.emacs or whatever else you use to bootstrap your config.
The chosen strategy can be made to work, although texi2html and texinfo were not enough on my system, but I stopped pursuing this strategy without installing the extra packages.
Here's what I did: download ruby-debug-extra-0.10.4.tar.gz from http://rubyforge.org/frs/?group_id=1900&release_id=28306, untar it, but DON'T do the whole configure/make/blah/blah thing. Instead, I simply copied the 'emacs' directory to ~/.emacs.d/rdebug, and then added to my ~/.emacs.d/init.el file (you can also use your ~/.emacs file):
(add-to-list 'load-path "~/.emacs.d/rdebug")
(autoload 'rdebug "rdebug" "ruby-debug interface" t)
This won't byte-compile it, I didn't care. I prefer this solution because I got really annoyed that the packages forces you to install the docs.
Related
I'm aware a lot is involved in getting autocomplete to work in emacs, including:
auto-complete
company
flymake
I am not sure which components are responsible for which aspects. What is the package that when I start typing...
fmt.P
Would finish with
fmt.Println
?
I believe I have company as my auto-complete, and at present, if I start:
fm
It finishes fmt, but
fmt.
Produces nothing, and
fmt.P
Produces
fmt.package
Which is entirely wrong. What package should I investigate to understand what is going on?
Autocomplete, company-mode, flymake, oh my. I recommend you uninstall all of the above and use Emacs' native completion instead:
install gocode and make sure the binary is in Emacs' PATH;
install the go-complete package in Emacs (I got it from melpa, but you may prefer to install it manually);
add the following to your .emacs:
(add-hook 'completion-at-point-functions 'go-complete-at-point)
press M-TAB in a go-mode buffer.
Since the original answer was written, the original gocode has ceased being maintained. While there exist forks of gocode that work well with recent versions of Go, the recommended replacement is golsp
Install the eglot pakage from ELPA (not necessary if you are running Emacs 29 or later, which includes eglot out of the box).
Install golsp and make sure it is in your path.
Add the following to your .emacs:
(add-hook 'go-mode-hook #'eglot-ensure)
Press M-TAB in a go-mode buffer.
I'm running Emacs 24.4 for Windows (installed through Chocolatey) and trying to install CIDER.
When I run M-x package-install [RET] cider [RET], I get [No match]. When I run M-x package-refresh-contents [RET], it hangs on Contacting host: elpa.gnu.org:80.
~/.emacs.d is populated with the GitHub repo recommended by braveclojure.com (here). I've reinstalled Emacs and I'm still getting the same problem.
I had this same problem on emacs ELPA wiki they say to set un ELPA you have to modify the emacs init file located at ~/.emacs or _emacs or ~/.emacs.d/init.el for me it was ~/.emacs-live.el since I have this version.
I just updated that file with the following:
(setq package-archives '(("gnu" . "http://elpa.gnu.org/packages/")
("marmalade" . "http://marmalade-repo.org/packages/")
("melpa" . "http://melpa.org/packages/")))
Seems that I needed the configuration from where ELPA is going to look for packages.
After that i just ran M-x package-refresh-contents [RET] and M-x package-install [RET] cider [RET] that installed cider.
This guide fixed it for me: http://www.lonecpluspluscoder.com/2015/08/adding-tls-support-to-emacs-24-5-on-windows/
Basically go to: http://sourceforge.net/projects/ezwinports/files/, grab the gnutls library and just uncompress the archive at the root of your Emacs directory.
Afterwards, doing list-packages became near-instant for me. Using Emacs 24.5.1.
I had the same problem with Emacs 24 in Ubuntu 16.04 and nothing seemed to solve the problem. Finally, installing Emacs 25 solved the problem.
New Emacs packages are available here
sudo add-apt-repository ppa:kelleyk/emacs
sudo apt-get update
apt-get install emacs27
The problem is that the ELPA package signing key has expired. A new Emacs version will include a new key. Note that currently (2020 Oct) there is Emacs 27 available for Ubuntu 16.04.
Also make sure that you use https urls (and not plain http).
Another possibility may be to install new keys to an older Emacs version.
Windows binaries may also be available somewhere.
Other than setting up your package archives, like a previous answer mentions (FWIW I'm using HTTPS directly)
(setq package-archives '(("gnu" . "https://elpa.gnu.org/packages/")
("marmalade" . "https://marmalade-repo.org/packages/")
("melpa" . "https://melpa.org/packages/")))
one might encounter another problem but with the same symptom of getting stuck at "Contacting host" due to running gpg in batch mode to verify the packages, but needing some input. You can disable that via
(setq package-check-signature nil)
Stack Overflow sometimes deletes chats. Fortunately it seems like I've still got access to a read-only version of the transcript.
From my perspective we didn't get a satisfactory answer. Here are the highlights:
We determined that the variable package-archives contained only GNU ELPA.
After discovering this, the OP wrote
I edited the package.el file. It works!
I suggested that editing a core Emacs Lisp file is not a good solution, but didn't hear anything back from the OP.
Since the referenced init.el file tries to add MELPA, I think there's something else going on. Perhaps the .emacs.d/ directory is in the wrong location, for example.
Editing package.el is certainly not a good solution. Doing more work to determine why the config isn't being properly loaded would be a good approach.
I have faced this issue on Emacs 24.5.1.
I searched here in SO and outside SO, nothing worked for me. I had to circumvent the problem by installing a newer version of Emacs: emacs25.
I have installed the package ccl with Mac ports. Now I want to use the Cocoa bridge.
Welcome to Clozure Common Lisp Version 1.8 (DarwinX8664)!
? (require "COCOA")
> Error: Permission denied : #P"/opt/local/share/ccl/1.8/temp bundle64.app/Contents/252752233492590994.tem"
> While executing: %CREATE-FILE, in process listener(1).
> Type :POP to abort, :R for a list of available restarts.
> Type :? for other options.
If I start ccl64 with sudo it works all right. But I would like to be able to do this as a normal user. How should I do it?
svn co http://svn.clozure.com/publicsvn/openmcl/release/1.8/darwinx86/ccl
while in ~ is probably the most straightfoward way to achieve what you want.
If you'd like to work with MacPorts to manage ccl (instead of the svn method above), then run
sudo chown -R $USER /opt/local/share/ccl
Note that the latter case does make me a bit uncomfortable, because if you try to sudo port uninstall ccl, MacPorts does not completely remove the share/ccl directory, presumably because the (require :cocoa) call adds compiled binaries to that directory that Macports is not tracking.
To get the MacAppStore version to work, you'd probably need to find the ccl binary buried inside the ccl.app directory, and launch that for slime. Might not be a bad way to go either.
Note that any way you do this, once you (require :cocoa), you'll have a separate cocoa listener pop up while slime is running. I just move it off to the side once it opens. If you find a way to suppress this listener window after (require :cocoa), I'd be interested to know that.
But I'd recommend the first (svn) method. That's the one I use with slimv, and it's the one that Clozure recommends on their downloads page.
If you are on a Mac, the easiest way to run Clozure CL is to load it from Apple's Mac App Store.
https://itunes.apple.com/de/app/clozure-cl/id489900618?mt=12
That way it gets installed in the Applications folder and running the Cocoa-App is no problem, since it is provided. But then you would run the Cocoa-based IDE version of CCL.
If you install CCL from MacPorts, I guess that the App is not existing. You would need to have the rights for the directory to create the necessary files.
Otherwise I would just install a fresh CCL from Clozure's repository:
http://ccl.clozure.com/download.html
If I want to work with Ruby in Vim, how can I add Ruby support to it?
First of all, you would need a Vim version that is compiled with Ruby support enabled. You achieve this with:
./configure <the rest of your options> --enable-rubyinterp
on a Linux system, for example.
The next steps would be installing the plugins of your choice, you probably want NERDTree, snipMate, vim-ruby-debugger....
There are a lot of plugins to make your life easier, but there is always the option to run arbitrary shell commands from within Vim, no extra plugin needed:
!ruby /path/to/script.rb
This will execute script.rb and print the shell output directly in Vim itself.
I would visit https://github.com/ and put "ruby vim" into search box. You should find plenty interesting add-ons for vim this way.
I would like to learn how to make a text editor using GTK+. I think the best way to do this is to watch what is happening in the code when one runs Gedit. I have been told that one has to compile the sources of Gedit and GTK+ for -g option. But as I am a very beginner of open source world, I would like to know
How can I load the sources of GTK+ and Gedit to my computer?
How to compile them to one package which can run on debugger?
How to run the Gedit and debugger so that I can see what is going on when one runs the program?
I'm using Ubuntu 10.04. I haven't done debugging earlier so I thought that DDD or Nemiver would be the easiest to learn but any suggestions are welcome.
For Ubuntu, simply do:
cd ~/Desktop # or wherever you want it
apt-get source gedit # does not need sudo
Check the README / INSTALL files - they should give you plenty information about compiling, just adapt the instructions to your needs. For a simple compile it's just:
./configure
make
The GEdit main development page is at: http://git.gnome.org/browse/gedit/
You can get the upstream source code using git clone git://git.gnome.org/gedit
You should use ./configure --enable-debug so it contains debug information in the first place (usually, C executable don't which is why they are so small).
So to correct the above from what you have now:
make clean
./configure --enable-debug
make
In DDD, F5 is step, F6 is next, F8 is finish and you can set breakpoints.