Use syntastic instead of pyflakes (supports a ton of more languages)

sources_non_forked/syntastic/syntax_checkers/ruby/jruby.vim

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+"============================================================================
+"File:        jruby.vim
+"Description: Syntax checking plugin for syntastic.vim
+"Maintainer:  Leonid Shevtsov <leonid at shevtsov dot me>
+"License:     This program is free software. It comes without any warranty,
+"             to the extent permitted by applicable law. You can redistribute
+"             it and/or modify it under the terms of the Do What The Fuck You
+"             Want To Public License, Version 2, as published by Sam Hocevar.
+"             See http://sam.zoy.org/wtfpl/COPYING for more details.
+"
+"============================================================================
+
+if exists("g:loaded_syntastic_ruby_jruby_checker")
+    finish
+endif
+let g:loaded_syntastic_ruby_jruby_checker = 1
+
+let s:save_cpo = &cpo
+set cpo&vim
+
+function! SyntaxCheckers_ruby_jruby_GetLocList() dict
+    if syntastic#util#isRunningWindows()
+        let exe = self.getExecEscaped()
+        let args = '-T1'
+    else
+        let exe = 'RUBYOPT= ' . self.getExecEscaped()
+        let args = ''
+    endif
+
+    let makeprg = self.makeprgBuild({
+        \ 'exe': exe,
+        \ 'args': args,
+        \ 'args_after': '-W1 -c' })
+
+    let errorformat =
+        \ '%-GSyntax OK for %f,'.
+        \ '%ESyntaxError in %f:%l: syntax error\, %m,'.
+        \ '%Z%p^,'.
+        \ '%W%f:%l: warning: %m,'.
+        \ '%Z%p^,'.
+        \ '%W%f:%l: %m,'.
+        \ '%-C%.%#'
+
+    return SyntasticMake({
+        \ 'makeprg': makeprg,
+        \ 'errorformat': errorformat })
+endfunction
+
+call g:SyntasticRegistry.CreateAndRegisterChecker({
+    \ 'filetype': 'ruby',
+    \ 'name': 'jruby'})
+
+let &cpo = s:save_cpo
+unlet s:save_cpo
+
+" vim: set et sts=4 sw=4:

sources_non_forked/syntastic/syntax_checkers/ruby/macruby.vim

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+"============================================================================
+"File:        macruby.vim
+"Description: Syntax checking plugin for syntastic.vim
+"License:     This program is free software. It comes without any warranty,
+"             to the extent permitted by applicable law. You can redistribute
+"             it and/or modify it under the terms of the Do What The Fuck You
+"             Want To Public License, Version 2, as published by Sam Hocevar.
+"             See http://sam.zoy.org/wtfpl/COPYING for more details.
+"
+"============================================================================
+
+if exists("g:loaded_syntastic_ruby_macruby_checker")
+    finish
+endif
+let g:loaded_syntastic_ruby_macruby_checker = 1
+
+let s:save_cpo = &cpo
+set cpo&vim
+
+function! SyntaxCheckers_ruby_macruby_GetLocList() dict
+    let makeprg = self.makeprgBuild({
+        \ 'exe': 'RUBYOPT= ' . self.getExecEscaped(),
+        \ 'args_after': '-W1 -c' })
+
+    let errorformat =
+        \ '%-GSyntax OK,'.
+        \ '%E%f:%l: syntax error\, %m,'.
+        \ '%Z%p^,'.
+        \ '%W%f:%l: warning: %m,'.
+        \ '%Z%p^,'.
+        \ '%W%f:%l: %m,'.
+        \ '%-C%.%#'
+
+    return SyntasticMake({
+        \ 'makeprg': makeprg,
+        \ 'errorformat': errorformat })
+endfunction
+
+call g:SyntasticRegistry.CreateAndRegisterChecker({
+    \ 'filetype': 'ruby',
+    \ 'name': 'macruby'})
+
+let &cpo = s:save_cpo
+unlet s:save_cpo
+
+" vim: set et sts=4 sw=4:

sources_non_forked/syntastic/syntax_checkers/ruby/mri.vim

@@ -0,0 +1,80 @@
+"============================================================================
+"File:        mri.vim
+"Description: Syntax checking plugin for syntastic.vim
+"Maintainer:  Martin Grenfell <martin.grenfell at gmail dot com>
+"License:     This program is free software. It comes without any warranty,
+"             to the extent permitted by applicable law. You can redistribute
+"             it and/or modify it under the terms of the Do What The Fuck You
+"             Want To Public License, Version 2, as published by Sam Hocevar.
+"             See http://sam.zoy.org/wtfpl/COPYING for more details.
+"
+"============================================================================
+
+if exists("g:loaded_syntastic_ruby_mri_checker")
+    finish
+endif
+let g:loaded_syntastic_ruby_mri_checker = 1
+
+if !exists("g:syntastic_ruby_exec")
+    let g:syntastic_ruby_exec = "ruby"
+endif
+
+let s:save_cpo = &cpo
+set cpo&vim
+
+function! SyntaxCheckers_ruby_mri_GetHighlightRegex(i)
+    if stridx(a:i['text'], 'assigned but unused variable') >= 0
+        let term = split(a:i['text'], ' - ')[1]
+        return '\V\<'.term.'\>'
+    endif
+
+    return ''
+endfunction
+
+function! SyntaxCheckers_ruby_mri_GetLocList() dict
+    let exe = expand(g:syntastic_ruby_exec)
+    if !syntastic#util#isRunningWindows()
+        let exe = 'RUBYOPT= ' . exe
+    endif
+
+    let makeprg = self.makeprgBuild({
+        \ 'exe': exe,
+        \ 'args_after': '-w -T1 -c' })
+
+    "this is a hack to filter out a repeated useless warning in rspec files
+    "containing lines like
+    "
+    "  foo.should == 'bar'
+    "
+    "Which always generate the warning below. Note that ruby >= 1.9.3 includes
+    "the word "possibly" in the warning
+    let errorformat = '%-G%.%#warning: %\(possibly %\)%\?useless use of == in void context,'
+
+    " filter out lines starting with ...
+    " long lines are truncated and wrapped in ... %p then returns the wrong
+    " column offset
+    let errorformat .= '%-G%\%.%\%.%\%.%.%#,'
+
+    let errorformat .=
+        \ '%-GSyntax OK,'.
+        \ '%E%f:%l: syntax error\, %m,'.
+        \ '%Z%p^,'.
+        \ '%W%f:%l: warning: %m,'.
+        \ '%Z%p^,'.
+        \ '%W%f:%l: %m,'.
+        \ '%-C%.%#'
+
+    return SyntasticMake({
+        \ 'makeprg': makeprg,
+        \ 'errorformat': errorformat })
+endfunction
+
+call g:SyntasticRegistry.CreateAndRegisterChecker({
+    \ 'filetype': 'ruby',
+    \ 'name': 'mri',
+    \ 'exec': 'ruby'})
+
+let &cpo = s:save_cpo
+unlet s:save_cpo
+
+" vim: set et sts=4 sw=4:

sources_non_forked/syntastic/syntax_checkers/ruby/rubocop.vim

@@ -0,0 +1,59 @@
+"============================================================================
+"File:        rubocop.vim
+"Description: Syntax checking plugin for syntastic.vim
+"Maintainer:  Recai Oktaş <roktas@bil.omu.edu.tr>
+"License:     This program is free software. It comes without any warranty,
+"             to the extent permitted by applicable law. You can redistribute
+"             it and/or modify it under the terms of the Do What The Fuck You
+"             Want To Public License, Version 2, as published by Sam Hocevar.
+"             See http://sam.zoy.org/wtfpl/COPYING for more details.
+"
+"============================================================================
+"
+" In order to use rubocop with the default ruby checker (mri):
+"     let g:syntastic_ruby_checkers = ['mri', 'rubocop']
+
+if exists("g:loaded_syntastic_ruby_rubocop_checker")
+    finish
+endif
+let g:loaded_syntastic_ruby_rubocop_checker = 1
+
+let s:save_cpo = &cpo
+set cpo&vim
+
+function! SyntaxCheckers_ruby_rubocop_IsAvailable() dict
+    return
+        \ executable(self.getExec()) &&
+        \ syntastic#util#versionIsAtLeast(syntastic#util#getVersion(self.getExecEscaped() . ' --version'), [0, 9, 0])
+endfunction
+
+function! SyntaxCheckers_ruby_rubocop_GetLocList() dict
+    let makeprg = self.makeprgBuild({ 'args_after': '--format emacs --silent' })
+
+    let errorformat = '%f:%l:%c: %t: %m'
+
+    let loclist = SyntasticMake({
+        \ 'makeprg': makeprg,
+        \ 'errorformat': errorformat,
+        \ 'subtype': 'Style'})
+
+    " convert rubocop severities to error types recognized by syntastic
+    for e in loclist
+        if e['type'] ==# 'F'
+            let e['type'] = 'E'
+        elseif e['type'] !=# 'W' && e['type'] !=# 'E'
+            let e['type'] = 'W'
+        endif
+    endfor
+
+    return loclist
+endfunction
+
+call g:SyntasticRegistry.CreateAndRegisterChecker({
+    \ 'filetype': 'ruby',
+    \ 'name': 'rubocop'})
+
+let &cpo = s:save_cpo
+unlet s:save_cpo
+
+" vim: set et sts=4 sw=4:

sources_non_forked/syntastic/syntax_checkers/ruby/rubylint.vim

@@ -0,0 +1,40 @@
+"============================================================================
+"File:        rubylint.vim
+"Description: Checks Ruby source code using ruby-lint
+"Maintainer:  Yorick Peterse <yorickpeterse@gmail.com>
+"License:     This program is free software. It comes without any warranty,
+"             to the extent permitted by applicable law. You can redistribute
+"             it and/or modify it under the terms of the Do What The Fuck You
+"             Want To Public License, Version 2, as published by Sam Hocevar.
+"             See http://sam.zoy.org/wtfpl/COPYING for more details.
+"
+"============================================================================
+
+if exists("g:loaded_syntastic_ruby_rubylint_checker")
+    finish
+endif
+
+let g:loaded_syntastic_ruby_rubylint_checker = 1
+
+let s:save_cpo = &cpo
+set cpo&vim
+
+function! SyntaxCheckers_ruby_rubylint_GetLocList() dict
+    let makeprg = self.makeprgBuild({ 'args': 'analyze --presenter=syntastic' })
+
+    let errorformat = '%f:%t:%l:%c: %m'
+
+    return SyntasticMake({
+        \ 'makeprg': makeprg,
+        \ 'errorformat': errorformat })
+endfunction
+
+call g:SyntasticRegistry.CreateAndRegisterChecker({
+    \ 'filetype': 'ruby',
+    \ 'name': 'rubylint',
+    \ 'exec': 'ruby-lint'})
+
+let &cpo = s:save_cpo
+unlet s:save_cpo
+
+" vim: set et sts=4 sw=4: