When editing ruby, some files but not all are garbled when editing in vim.
Inspecting the options with :set, I discovered that there is some magic done to produce one of the option values, and something went wrong with the magic and there is an error or warning message where the option value should be. That may be causing side effects.
The method throwing the error is Gem.all_load_paths, and it happens regardless of whether I use ruby 1.8.7, 1.9.2, whether I use rvm or system ruby. Using Ubuntu 11.10
I've tried setting the omnifunc option to nil, but that doesn't solve the problem; it seems to be a different option producing this value. The plugins I'm using can be seen below.
:set
--- Options ---
autoindent comments=:# history=50 keywordprg=ri scroll=29 suffixesadd=.rb ttyfast
backup filetype=ruby hlsearch mouse=a shiftwidth=2 syntax=ruby ttymouse=xterm2
backupdir=~/.tmp helplang=en incsearch ruler showcmd tabstop=2
backspace=indent,eol,start
balloonexpr=RubyBalloonexpr()
commentstring=# %s
fileencodings=ucs-bom,utf-8,default,latin1
formatoptions=croql
include=^\s*\<\(load\|w*require\)\>
includeexpr=substitute(substitute(v:fname,'::','/','g'),'$','.rb','')
indentexpr=GetRubyIndent()
indentkeys=0{,0},0),0],!^F,o,O,e,=end,=elsif,=when,=ensure,=rescue,==begin,==end
omnifunc=rubycomplete#Complete f
rom ~/.rvm/rubies/ruby-1.8.7-p352/lib/ruby/site_ruby/1.8/rubygems/deprecate.rb:62:in `all_load_paths'^#^Ifrom -e:1^#1.8/rubygems/deprecate.rb:62:in `send'^#^I
printoptions=paper:letter /
after,/var/lib/vim/addons/after,~/.vim/afterm,~/.vim/bundle/vim-rails,/var/lib/vim/addons,/usr/share/vim/vimfiles,/usr/share/vim/vim73,/usr/share/vim/vimfiles
suffixes=.bak,~,.swp,.o,.info,.aux,.log,.dvi,.bbl,.blg,.brf,.cb,.ind,.idx,.ilg,.inx,.out,.toc
I got the same thing today after updating from Snapshot 63 to Snapshot 64 of MacVim. It's an ugly hack, but I found the offending line (79) in MacVim.app/Contents/Resources/vim/runtime/ftplugin/ruby.vim and removed the reference to Gem.all_load_paths, which is deprecated with no replacement.
I've posted a diff of my gist that gets me going. It's not clear to me at this point if this is a bug to be reported against MacVim or Vim.
I built on #pbyme a little bit and actually found the new way to do it. With my current setup, it's even pulling in some local gems brought in by bundler.
The key is replacing all_load_paths with Specification.map(&:lib_dirs_glob)
MacVim.app/Contents/Resources/vim/runtime/ftplugin/ruby.vim
79c79
< let s:code = "print ($: + begin; require %q{rubygems}; Gem.all_load_paths.sort.uniq; rescue LoadError; []; end).join(%q{,})"
---
> let s:code = "print ($: + begin; require %q{rubygems}; Gem::Specification.map(&:lib_dirs_glob).sort.uniq; rescue LoadError; []; end).join(%q{,})"
Related
I've recently started using Ruby 3 more and it seems the home key (to take me to the beginning of the line) the end key (end of the line) and ctrl-u (clear the line) aren't working.
I'm running Arch Linux with Ruby 3.1.1p18 and a zsh shell. The keys work fine on Ruby 2.7. I've tried with Alacritty and xfce4-terminal and both have the same issue. I'm not using Tmux or anything similar.
There is this similar question from a few years ago but that's for Windows and the solutions didn't help: Backspace and arrow keys aren't working in IRB(Git Bash console) on windows machine
I also specifically see ctrl-u not working in Ruby 3's irb, despite other ctrl commands working (ctrl-a, ctrl-k).
For the meantime, I'm using pry for my REPL. Bonus… I prefer it's simpler auto-complete.
gem install pry
pry
I can't take credit for this as this is just a copy from: https://github.com/ruby/irb/issues/330, but I hope this is useful for those that stumbled upon this question without a good answer.
For those who would prefer to do the above patches at runtime, for macOS/iTerm2, add this code to "~/.irbrc":
require "reline/ansi"
if defined?(Reline::ANSI::CAPNAME_KEY_BINDINGS) # make sure you're using an affected version
# Fix insert, delete, pgup, and pgdown.
Reline::ANSI::CAPNAME_KEY_BINDINGS.merge!({
"kich1" => :ed_ignore,
"kdch1" => :key_delete,
"kpp" => :ed_ignore,
"knp" => :ed_ignore
})
Reline::ANSI.singleton_class.prepend(
Module.new do
def set_default_key_bindings(config)
# Fix home and end.
set_default_key_bindings_comprehensive_list(config)
# Fix iTerm2 insert.
key = [239, 157, 134]
func = :ed_ignore
config.add_default_key_binding_by_keymap(:emacs, key, func)
config.add_default_key_binding_by_keymap(:vi_insert, key, func)
config.add_default_key_binding_by_keymap(:vi_command, key, func)
# The rest of the behavior.
super
end
end
)
end
No switch to application mode needed, and no iTerm2 rebinding.
I'm really confused on this one, and maybe it's a bug in Ruby 2.6.2. I have files that were written as UTF-8 with BOM, so I'm using the following:
filelist = Dir.entries(#input_dirname).join(' ')
filelist = filelist.split(' ').grep(/xml/)
filelist.each do |indfile|
filecontents_tmp = File.read("#{#input_dirname}/#{indfile}", :encoding =>'bom|utf-8')
puts filecontents_tmp
end
If I put a debug breakpoint at the puts line, my file is read in properly. If I just run the simple script, I get the following error:
in `read': ASCII incompatible encoding needs binmode (ArgumentError)
I'm confused as to why this would work in debug, but not when run normally. Ideas?
Have you tried printing the default encoding when you run the file as opposed to when you debug the file? There are 3 ways to set / change the encoding in Ruby (that I'm aware of), so I wonder if it's different between running the file and debugging. You should be able to tell by printing the default encoding: puts Encoding.default_external.
As for actually fixing the issue, I ran into a similar problem and found this answer which said to add bin mode as an option to the File.open call and it worked for me.
TL;DR
How to find where exactly vim or nvim error started (which file?) when I'm interested in fixing the actual issue and not just removing the bad plugin? Anything better than strace and guesswork to find the error origin?
Issue
I often add a plugin to my vim or nvim config and end up getting errors on hooks (buffer open, close, write):
"test.py" [New] 0L, 0C written
Error detected while processing function 343[12]..272:
line 8:
E716: Key not present in Dictionary: _exec
E116: Invalid arguments for function get(a:args, 'exec', a:1['_exec'])
E15: Invalid expression: get(a:args, 'exec', a:1['_exec'])
The problem is, I have no idea where those come from, only get some line number of unknown file and I know it's not my vim/nvim config file.
Somewhere, you have a plugin that has defined a dictionary with anonymous-functions (check the help related to this tag).
For the curious ones, it's done this way:
let d = {}
function! d.whatever() abort
throw "blah"
endfunction
When you execute this function, you'll get the kind of error you're currently observing. That's why I stopped working this way to prefer:
let d = {}
function s:whatever() abort
throw "blah"
endfunction
let d.whatever = function('s:whatever') " a workaround is required for older versions of vim
" At least this way I'll get a `<SNR>42_whatever` in the exception throwpoint, and thus a scriptname.
That's the why. Now, back to your problem, AFAIK, the only things you'll be able to know are the two functions that have been called:
in line 12 of :function {343}, you've called
:function {272} which contains an error at line 8.
Thanks to these two commands (may be prefixed with :verbose, I don't remember exactly), you'll get the source code of the two functions, which you should be able to use in order to grep your plugins to know where it appears.
how to fix Line is too long error in a ruby file without ignoring it and not introducing new errors.
I have tried giving the extra character in the next line using IDE. It is introducing new errors like 'Ternary operators must not be nested. Prefer if or else constructs instead.'
Rubocop already suggested the way to fix this error. Let me repeat it here. Assuming you have a very long line that reads:
variable = long_condition ? true_clause : false_clause
change it to:
variable = if long_condition
true_clause
else
false_clause
end
Other way would be to instruct rubocop to [temporary] ignore this error by running from the very project directory:
rubocop --auto-gen-config
Or, as last but not the least chance, update your .rubocop.yml file to increase a line length within a respective rule.
Rubocop tells you what to do, just follow its advice.
Also, have a look at the ruby styleguide, which explains all the rubocop rules in detail.
I've been using vim over ssh to work for a week or two now and all has been going great. Today I decided to add in some syntax highlighting, autocomplete, and some other general plugins. Set up vundle and went to work.
My current .vimrc can be found at https://github.com/scottopell/dotfiles/blob/master/.vimrc
I have cloned my vimrc and vim files onto my local ubuntu desktop and vim runs exactly as expected, no slowness on any files that I can find. Same plugins and same vimrc and no slowness on ruby files.
update
I can reproduce this issue with the following .vimrc
syntax on
and an empty ~/.vim folder.
However, vim on this vps is very slow with ruby/haml files. Much moreso ruby files. When I open any ruby file, startup takes about 2 seconds (timed with --startuptime). With a comparable length haml file, its about .5 seconds. This slowness isn't just on startup either, moving around and editing the file are both painfully slow.
Haml/erb(they are basically the same)
268.818 000.005: before starting main loop
848.871 580.053: first screen update
Ruby
199.613 000.004: before starting main loop
2937.859 2738.246: first screen update
Without syntax highlighting on the same ruby file as above
149.047 000.004: before starting main loop
152.912 003.865: first screen update
I have tried using mosh(http://mosh.mit.edu) and it doesn't help. not really relevant anymore
As you can see in my .vimrc file, I have tried a few different solutions to this problem.
I have tried running with all plugins disabled (I moved them all from ~/vim/bundle/PLUGINNAME to ~/vim/bundle/disabled/PLUGINNAME, is this correct?), set ruby path, set foldlevel to manual, disabled my colorscheme, nothing helps. see edit3
I can post the full startupttime log for any file if that will help.
I have tested a few other languages(php, c, python, vimL) and none experience any slowdown.
EDIT: Just to clarify, I am running an ssh session with ssh user#server then once inside the server I am doing vim file.rb.
EDIT2: I just tried accessing the server directly and the slowness persists without ssh, I have updated to reflect that this isn't a problem with ssh.
EDIT3: I can reproduce the issue with a .vimrc file that contains the single line syntax on with an empty ~/.vim folder
EDIT4 I uninstalled my compiled version of vim and any versions that I may have installed through apt, manually removed all vim stuff from my system, and I can run vim with vim -u NONE /path/to/file.rb then do :syn on and the issue will be there. The file in question is a rails controller, but like I've said, I can recreate it to some degree with most any file, but rails controllers see to be the worst.
The solution to this problem turned out to be the regex engine that vim uses.
The speculation on #vim on freenode is that the ruby syntax files use something that is slower on the new regex engine.
Any version older than and including Vim 7.3.969 has the old regex engine.
Add in set re=1 to your vimrc to force the old regex engine on any version newer (and don't forget to reload the file you're currently editing with :e).
Thanks to Houl, Dolio and dmedvinsky from #vim for help figuring it out.
I haven't had a chance to try the absolute latest version, there was a commit last night that may help with this issue. I will update this if I get the chance to try the bleeding edge version again.
You should set this tw options in your vimrc:
set ttyfast
set lazyredraw
If this is not solving your problem try to start vim without your vimrc to be sure that none of your current settings are screwing it up.
vim -u NONE
Two things that will drastically help speed up Ruby syntax highlighting are disabling cursor line and relative number for Ruby (if you use those).
I have the following in my .vimrc:
" Ruby is an oddball in the family, use special spacing/rules
if v:version >= 703
" Note: Relative number is quite slow with Ruby, so is cursorline
autocmd FileType ruby setlocal ts=2 sts=2 sw=2 norelativenumber nocursorline
else
autocmd FileType ruby setlocal ts=2 sts=2 sw=2
endif
I'm using vim 7.4.52 and none of these solutions worked for me.
According to this github comment on the issue (https://github.com/vim/vim/issues/282#issuecomment-169837021), foldmethod=syntax is responsible for the slowness.
Adding this to my .vimrc finally fixed it!
augroup ft_rb
au!
" fix the SLOOOW syntax highlighting
au FileType ruby setlocal re=1 foldmethod=manual
augroup END
Try setting your ruby path explicitly in your vimrc:
let g:ruby_path="/usr/bin/ruby"
see UPDATE at the bottom.
this may be helpful as a workaround -
i am using vim version
VIM - Vi IMproved 7.4 (2013 Aug 10, compiled Jan 2 2014 19:40:46)
Included patches: 1-52
it is the stock version from
Linux Mint 17.1 Rebecca.
the php.vim syntax file is not version'd that i can see, but it sez last edit'd 28 aug 13.
it isn't a ruby project, but when editing a large php class file (
$ php -w test.inc | wc
2 2410 19220
) i note significant delays near the top of the class, but not above or below the class, and, notably, not toward the bottom of the class. as i attempt to insert new text near the bottom of the class, delay is minimal and seems to be proportional to the line number inside the class. "minimal" means almost instantly, "significant" means 1 to 1.5 seconds per character.
the file is approx 1800 lines with approx 500 lines of legit php and 1300 lines of comments and doc. the class begins at approx line 30 and ends at approx line 1700. it is conceded it's a bit large, but well documented :-\
if i insert
class dummy { }
in front of the original "class originalName {",
there is no delay anywhere in the file. this unsightly kluge permits vim/gvim to regain its responsiveness and could be considered a workaround. note no linefeed between the two, just
class dummy { } class originalName {
it can even be comment'd out:
/*class dummy {}*/class originalName {
additional info:
during this test, the plugins directory was moved.
with "set syntax=off", the problem completely disappears. this is NOT a fix.
setting the regular expression engine with
set regexpengine=1 (or any other number)
does not appreciably change the results.
based on these results, i would suspect the regular expression engine as well. my point is that diddling a bit with the syntax in ruby files may lead to a workaround.
UPDATE:
i have found that the issue is "caused" by setting php_folding to 1 (enabled). the vimrc i THOUGHT i was using was not, but at least some of the mystery is solved due to that mistake. a simple vimrc like this will induce the problem (for me, as least):
:syntax enable
:let php_folding = 1
this means my issue is totally unrelated to the ruby issue, but there may be a similar thing going on with the ruby.vim file. maybe not.
apologies for the deflection.
I tried most of these solutions but what ended up working for me the best was removing any plugins associated with airline.