.vimrc

" This is Gary Bernhardt's .vimrc file
" vim:set ts=2 sts=2 sw=2 expandtab:

" remove all existing autocmds
autocmd!

" initialize @tpope, whence all vim plugins come
call pathogen#incubate()

""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
" BASIC EDITING CONFIGURATION
""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
set nocompatible
" allow unsaved background buffers and remember marks/undo for them
set hidden
" remember more commands and search history
set history=10000
set expandtab
set tabstop=4
set shiftwidth=4
set softtabstop=4
set autoindent
set laststatus=2
set showmatch
set incsearch
set hlsearch
" make searches case-sensitive only if they contain upper-case characters
set ignorecase smartcase
" highlight current line
set cursorline
set cmdheight=1
set switchbuf=useopen
" Always show tab bar at the top
set showtabline=2
set winwidth=79
" This makes RVM work inside Vim. I have no idea why.
set shell=bash
" Prevent Vim from clobbering the scrollback buffer. See
" http://www.shallowsky.com/linux/noaltscreen.html
set t_ti= t_te=
" keep more context when scrolling off the end of a buffer
set scrolloff=3
" Don't make backups at all
set nobackup
set nowritebackup
set backupdir=~/.vim-tmp,~/.tmp,~/tmp,/var/tmp,/tmp
set directory=~/.vim-tmp,~/.tmp,~/tmp,/var/tmp,/tmp
" allow backspacing over everything in insert mode
set backspace=indent,eol,start
" display incomplete commands
set showcmd
" Enable highlighting for syntax
syntax on
" Enable file type detection.
" Use the default filetype settings, so that mail gets 'tw' set to 72,
" 'cindent' is on in C files, etc.
" Also load indent files, to automatically do language-dependent indenting.
filetype plugin indent on
" use emacs-style tab completion when selecting files, etc
set wildmode=longest,list
" make tab completion for files/buffers act like bash
set wildmenu
let mapleader=","
" Fix slow O inserts
:set timeout timeoutlen=1000 ttimeoutlen=100
" Normally, Vim messes with iskeyword when you open a shell file. This can
" leak out, polluting other file types even after a 'set ft=' change. This
" variable prevents the iskeyword change so it can't hurt anyone.
let g:sh_noisk=1
" Modelines (comments that set vim options on a per-file basis)
set modeline
set modelines=3
" Turn folding off for real, hopefully
set foldmethod=manual
set nofoldenable
" Insert only one space when joining lines that contain sentence-terminating
" punctuation like `.`.
set nojoinspaces
" If a file is changed outside of vim, automatically reload it without asking
set autoread
" Use the old vim regex engine (version 1, as opposed to version 2, which was
" introduced in Vim 7.3.969). The Ruby syntax highlighting is significantly
" slower with the new regex engine.
set re=1
" Stop SQL language files from doing unholy things to the C-c key
let g:omni_sql_no_default_maps = 1

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" CUSTOM AUTOCMDS
""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
augroup vimrcEx
  " Clear all autocmds in the group
  autocmd!
  autocmd FileType text setlocal textwidth=78
  " Jump to last cursor position unless it's invalid or in an event handler
  autocmd BufReadPost *
    \ if line("'\"") > 0 && line("'\"") <= line("$") |
    \   exe "normal g`\"" |
    \ endif

  "for ruby, autoindent with two spaces, always expand tabs
  autocmd FileType ruby,haml,eruby,yaml,html,sass,cucumber set ai sw=2 sts=2 et
  autocmd FileType python set sw=4 sts=4 et

  autocmd! BufRead,BufNewFile *.sass setfiletype sass 

  autocmd BufRead *.mkd  set ai formatoptions=tcroqn2 comments=n:&gt;
  autocmd BufRead *.markdown  set ai formatoptions=tcroqn2 comments=n:&gt;

  " Indent p tags
  " autocmd FileType html,eruby if g:html_indent_tags !~ '\\|p\>' | let g:html_indent_tags .= '\|p\|li\|dt\|dd' | endif

  " Don't syntax highlight markdown because it's often wrong
  autocmd! FileType mkd setlocal syn=off

  " Leave the return key alone when in command line windows, since it's used
  " to run commands there.
  autocmd! CmdwinEnter * :unmap <cr>
  autocmd! CmdwinLeave * :call MapCR()

  " *.md is markdown
  autocmd! BufNewFile,BufRead *.md setlocal ft=

  " indent slim two spaces, not four
  autocmd! FileType slim set sw=2 sts=2 et

  " javascript
  autocmd! FileType javascript set sw=2 sts=2 expandtab autoindent smartindent nocindent

  " Expand tabs in Go. Was gofmt raised in a barn?!
  autocmd! FileType go set sw=4 sts=4 expandtab | retab
augroup END

""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
" COLOR
""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
:set t_Co=256 " 256 colors
:set background=dark
:color grb256

""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
" STATUS LINE
""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
:set statusline=%<%f\ (%{&ft})\ %-4(%m%)%=%-19(%3l,%02c%03V%)

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" MISC KEY MAPS
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map <leader>y "*y
" Move around splits with <c-hjkl>
nnoremap <c-j> <c-w>j
nnoremap <c-k> <c-w>k
nnoremap <c-h> <c-w>h
nnoremap <c-l> <c-w>l
" Insert a hash rocket with <c-l>
imap <c-l> <space>=><space>
" Can't be bothered to understand ESC vs <c-c> in insert mode
imap <c-c> <esc>
nnoremap <leader><leader> <c-^>
" Align selected lines
vnoremap <leader>ib :!align<cr>

""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
" MULTIPURPOSE TAB KEY
" Indent if we're at the beginning of a line. Else, do completion.
""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
function! InsertTabWrapper()
    let col = col('.') - 1
    if !col || getline('.')[col - 1] !~ '\k'
        return "\<tab>"
    else
        return "\<c-p>"
    endif
endfunction
inoremap <expr> <tab> InsertTabWrapper()
inoremap <s-tab> <c-n>

""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
" SHORTCUT TO REFERENCE CURRENT FILE'S PATH IN COMMAND LINE MODE
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cnoremap <expr> %% expand('%:h').'/'

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" RENAME CURRENT FILE
""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
function! RenameFile()
    let old_name = expand('%')
    let new_name = input('New file name: ', expand('%'), 'file')
    if new_name != '' && new_name != old_name
        exec ':saveas ' . new_name
        exec ':silent !rm ' . old_name
        redraw!
    endif
endfunction
map <leader>n :call RenameFile()<cr>

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" PROMOTE VARIABLE TO RSPEC LET
""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
function! PromoteToLet()
  :normal! dd
  " :exec '?^\s*it\>'
  :normal! P
  :.s/\(\w\+\) = \(.*\)$/let(:\1) { \2 }/
  :normal ==
endfunction
:command! PromoteToLet :call PromoteToLet()
:map <leader>p :PromoteToLet<cr>

""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
" EXTRACT VARIABLE (SKETCHY)
""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
function! ExtractVariable()
    let name = input("Variable name: ")
    if name == ''
        return
    endif
    " Enter visual mode (not sure why this is needed since we're already in
    " visual mode anyway)
    normal! gv

    " Replace selected text with the variable name
    exec "normal c" . name
    " Define the variable on the line above
    exec "normal! O" . name . " = "
    " Paste the original selected text to be the variable value
    normal! $p
endfunction
vnoremap <leader>rv :call ExtractVariable()<cr>

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" INLINE VARIABLE (SKETCHY)
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function! InlineVariable()
    " Copy the variable under the cursor into the 'a' register
    :let l:tmp_a = @a
    :normal "ayiw
    " Delete variable and equals sign
    :normal 2daW
    " Delete the expression into the 'b' register
    :let l:tmp_b = @b
    :normal "bd$
    " Delete the remnants of the line
    :normal dd
    " Go to the end of the previous line so we can start our search for the
    " usage of the variable to replace. Doing '0' instead of 'k$' doesn't
    " work; I'm not sure why.
    normal k$
    " Find the next occurence of the variable
    exec '/\<' . @a . '\>'
    " Replace that occurence with the text we yanked
    exec ':.s/\<' . @a . '\>/' . escape(@b, "/")
    :let @a = l:tmp_a
    :let @b = l:tmp_b
endfunction
nnoremap <leader>ri :call InlineVariable()<cr>

""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
" MAPS TO JUMP TO SPECIFIC COMMAND-T TARGETS AND FILES
""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
map <leader>gr :topleft :split config/routes.rb<cr>
function! ShowRoutes()
  " Requires 'scratch' plugin
  :topleft 100 :split __Routes__
  " Make sure Vim doesn't write __Routes__ as a file
  :set buftype=nofile
  " Delete everything
  :normal 1GdG
  " Put routes output in buffer
  :0r! rake -s routes
  " Size window to number of lines (1 plus rake output length)
  :exec ":normal " . line("$") . "_ "
  " Move cursor to bottom
  :normal 1GG
  " Delete empty trailing line
  :normal dd
endfunction
map <leader>gR :call ShowRoutes()<cr>

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" SWITCH BETWEEN TEST AND PRODUCTION CODE
""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
function! OpenTestAlternate()
  let new_file = AlternateForCurrentFile()
  exec ':e ' . new_file
endfunction
function! AlternateForCurrentFile()
  let current_file = expand("%")
  let new_file = current_file
  let in_spec = match(current_file, '^spec/') != -1
  let going_to_spec = !in_spec
  let in_app = match(current_file, '\<controllers\>') != -1 || match(current_file, '\<models\>') != -1 || match(current_file, '\<workers\>') != -1 || match(current_file, '\<views\>') != -1 || match(current_file, '\<helpers\>') != -1
  if going_to_spec
    if in_app
      let new_file = substitute(new_file, '^app/', '', '')
    end
    let new_file = substitute(new_file, '\.e\?rb$', '_spec.rb', '')
    let new_file = 'spec/' . new_file
  else
    let new_file = substitute(new_file, '_spec\.rb$', '.rb', '')
    let new_file = substitute(new_file, '^spec/', '', '')
    if in_app
      let new_file = 'app/' . new_file
    end
  endif
  return new_file
endfunction
nnoremap <leader>. :call OpenTestAlternate()<cr>

""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
" RUNNING TESTS
"
" Test running here is contextual in two different ways:
"
" 1. It will guess at how to run the tests. E.g., if there's a Gemfile
"    present, it will `bundle exec rspec` so the gems are respected.
"
" 2. It remembers which tests have been run. E.g., if I'm editing user_spec.rb
"    and hit enter, it will run rspec on user_spec.rb. If I then navigate to a
"    non-test file, like routes.rb, and hit return again, it will re-run
"    user_spec.rb. It will continue using user_spec.rb as my 'default' test
"    until I hit enter in some other test file, at which point that test file
"    is run immediately and becomes the default. This is complex to describe
"    fully, but simple to use in practice: always hit enter to run tests. It
"    will run either the test file you're in or the last test file you hit
"    enter in.
"
" 3. Sometimes you want to run just one test. For that, there's <leader>T,
"    which passes the current line number to the test runner. RSpec knows what
"    to do with this (it will run the first test it finds at or below the
"    given line number). It probably won't work with other test runners.
"    'Focusing' on a single test in this way will be remembered if you hit
"    enter from non-test files, as described above.
"
" 4. Sometimes you don't want contextual test running. In that case, there's
"    <leader>a, which runs everything.
"
""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
function! MapCR()
  nnoremap <cr> :call RunTestFile()<cr>
endfunction
call MapCR()
nnoremap <leader>T :call RunNearestTest()<cr>
nnoremap <leader>a :call RunTests('')<cr>

function! RunTestFile(...)
    if a:0
        let command_suffix = a:1
    else
        let command_suffix = ""
    endif

    " Are we in a test file?
    let in_test_file = match(expand("%"), '\(_spec.rb\|_test.rb\|test_.*\.py\|_test.py\)$') != -1

    " Run the tests for the previously-marked file (or the current file if
    " it's a test).
    if in_test_file
        call SetTestFile(command_suffix)
    elseif !exists("t:grb_test_file")
        return
    end
    call RunTests(t:grb_test_file)
endfunction

function! RunNearestTest()
    let spec_line_number = line('.')
    call RunTestFile(":" . spec_line_number)
endfunction

function! SetTestFile(command_suffix)
    " Set the spec file that tests will be run for.
    let t:grb_test_file=@% . a:command_suffix
endfunction

function! RunTests(filename)
    " Write the file and run tests for the given filename
    if expand("%") != ""
      :w
    end
    " The file is executable; assume we should run
    if executable(a:filename)
      exec ":!./" . a:filename
    " Project-specific test script
    elseif filereadable("bin/test")
      exec ":!bin/test " . a:filename
    " Rspec binstub
    elseif filereadable("bin/rspec")
      exec ":!bin/rspec " . a:filename
    " Fall back to the .test-commands pipe if available, assuming someone
    " is reading the other side and running the commands
    elseif filewritable(".test-commands")
      let cmd = 'rspec --color --format progress --require "~/lib/vim_rspec_formatter" --format VimFormatter --out tmp/quickfix'
      exec ":!echo " . cmd . " " . a:filename . " > .test-commands"

      " Write an empty string to block until the command completes
      sleep 100m " milliseconds
      :!echo > .test-commands
      redraw!
    " Fall back to a blocking test run with Bundler
    elseif filereadable("bin/rspec")
      exec ":!bin/rspec --color " . a:filename
    elseif filereadable("Gemfile") && strlen(glob("spec/**/*.rb"))
      exec ":!bundle exec rspec --color " . a:filename
    elseif filereadable("Gemfile") && strlen(glob("test/**/*.rb"))
      exec ":!bin/rails test " . a:filename
    " If we see python-looking tests, assume they should be run with Nose
    elseif strlen(glob("test/**/*.py") . glob("tests/**/*.py"))
      exec "!nosetests " . a:filename
    end
endfunction


""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
" Md5 COMMAND
" Show the MD5 of the current buffer
""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
command! -range Md5 :echo system('echo '.shellescape(join(getline(<line1>, <line2>), '\n')) . '| md5')

""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
" OpenChangedFiles COMMAND
" Open a split for each dirty file in git
""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
function! OpenChangedFiles()
  only " Close all windows, unless they're modified
  let status = system('git status -s | grep "^ \?\(M\|A\|UU\)" | sed "s/^.\{3\}//"')
  let filenames = split(status, "\n")
  exec "edit " . filenames[0]
  for filename in filenames[1:]
    exec "sp " . filename
  endfor
endfunction
command! OpenChangedFiles :call OpenChangedFiles()

""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
" InsertTime COMMAND
" Insert the current time
""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
command! InsertTime :normal a<c-r>=strftime('%F %H:%M:%S.0 %z')<cr>

""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
" FindConditionals COMMAND
" Start a search for conditional branches, both implicit and explicit
""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
command! FindConditionals :normal /\<if\>\|\<unless\>\|\<and\>\|\<or\>\|||\|&&<cr>

""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
" Test quickfix list management
"
" If the tests write a tmp/quickfix file, these mappings will navigate through
" it
""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
function! GetBufferList()
  redir =>buflist
  silent! ls
  redir END
  return buflist
endfunction

function! BufferIsOpen(bufname)
  let buflist = GetBufferList()
  for bufnum in map(filter(split(buflist, '\n'), 'v:val =~ "'.a:bufname.'"'), 'str2nr(matchstr(v:val, "\\d\\+"))')
    if bufwinnr(bufnum) != -1
      return 1
    endif
  endfor
  return 0
endfunction

function! ToggleQuickfix()
  if BufferIsOpen("Quickfix List")
    cclose
  else
    call OpenQuickfix()
  endif
endfunction

function! OpenQuickfix()
  cgetfile tmp/quickfix
  topleft cwindow
  if &ft == "qf"
      cc
  endif
endfunction

nnoremap <leader>q :call ToggleQuickfix()<cr>
nnoremap <leader>Q :cc<cr>
nnoremap <leader>j :cnext<cr>
nnoremap <leader>k :cprev<cr>

""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
" RemoveFancyCharacters COMMAND
" Remove smart quotes, etc.
""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
function! RemoveFancyCharacters()
    let typo = {}
    let typo["“"] = '"'
    let typo["”"] = '"'
    let typo["‘"] = "'"
    let typo["’"] = "'"
    let typo["–"] = '--'
    let typo["—"] = '---'
    let typo["…"] = '...'
    :exe ":%s/".join(keys(typo), '\|').'/\=typo[submatch(0)]/ge'
endfunction
command! RemoveFancyCharacters :call RemoveFancyCharacters()

""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
" Selecta Mappings
""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
" Run a given vim command on the results of fuzzy selecting from a given shell
" command. See usage below.
function! SelectaCommand(choice_command, selecta_args, vim_command)
  try
    let selection = system(a:choice_command . " | selecta " . a:selecta_args)
    " Escape spaces in the file name. That ensures that it's a single argument
    " when concatenated with vim_command and run with exec.
    let selection = substitute(selection, ' ', '\\ ', "g")
  catch /Vim:Interrupt/
    " Swallow the ^C so that the redraw below happens; otherwise there will be
    " leftovers from selecta on the screen
    redraw!
    return
  endtry
  redraw!
  exec a:vim_command . " " . selection
endfunction

function! SelectaFile(path, glob, command)
  call SelectaCommand("find " . a:path . "/* -type f -and -not -path '*/node_modules/*' -and -not -path '*/_build/*' -and -iname '" . a:glob . "' -and -not -iname '*.pyc' -and -not -ipath '*/tmp/*' -and -not -iname '*.png' -and -not -iname '*.jpg' -and -not -iname '*.eps' -and -not -iname '*.pdf' -and -not -iname '*.svg' -and -not -iname '*.ttf'", "", a:command)
endfunction

nnoremap <leader>f :call SelectaFile(".", "*", ":edit")<cr>
nnoremap <leader>gv :call SelectaFile("app/views", "*", ":edit")<cr>
nnoremap <leader>gc :call SelectaFile("app/controllers", "*", ":edit")<cr>
nnoremap <leader>gm :call SelectaFile("app/models", "*", ":edit")<cr>
nnoremap <leader>gh :call SelectaFile("app/helpers", "*", ":edit")<cr>
nnoremap <leader>gl :call SelectaFile("lib", "*", ":edit")<cr>
nnoremap <leader>gp :call SelectaFile("public", "*", ":edit")<cr>
nnoremap <leader>gs :call SelectaFile("app/assets/stylesheets", "*.sass", ":edit")<cr>
nnoremap <leader>e :call SelectaFile(expand('%:h'), "*", ":edit")<cr>
nnoremap <leader>v :call SelectaFile(expand('%:h'), "*", ":view")<cr>

"Fuzzy select
function! SelectaIdentifier()
  " Yank the word under the cursor into the z register
  normal "zyiw
  " Fuzzy match files in the current directory, starting with the word under
  " the cursor
  call SelectaCommand("find * -type f", "-s " . @z, ":e")
endfunction
nnoremap <c-g> :call SelectaIdentifier()<cr>