1 files changed, 199 insertions, 0 deletions
diff --git a/vim/bundle/vim-gitgutter/autoload/gitgutter/utility.vim b/vim/bundle/vim-gitgutter/autoload/gitgutter/utility.vim
new file mode 100644
index 0000000..3135453
--- /dev/null
+++ b/vim/bundle/vim-gitgutter/autoload/gitgutter/utility.vim
@@ -0,0 +1,199 @@
+let s:file = ''
+let s:using_xolox_shell = -1
+let s:exit_code = 0
+
+function! gitgutter#utility#warn(message) abort
+  echohl WarningMsg
+  echo 'vim-gitgutter: ' . a:message
+  echohl None
+  let v:warningmsg = a:message
+endfunction
+
+function! gitgutter#utility#warn_once(message, key) abort
+  if empty(getbufvar(s:bufnr, a:key))
+    call setbufvar(s:bufnr, a:key, '1')
+    echohl WarningMsg
+    redraw | echo 'vim-gitgutter: ' . a:message
+    echohl None
+    let v:warningmsg = a:message
+  endif
+endfunction
+
+" Returns truthy when the buffer's file should be processed; and falsey when it shouldn't.
+" This function does not and should not make any system calls.
+function! gitgutter#utility#is_active() abort
+  return g:gitgutter_enabled &&
+        \ !pumvisible() &&
+        \ gitgutter#utility#is_file_buffer() &&
+        \ gitgutter#utility#exists_file() &&
+        \ gitgutter#utility#not_git_dir()
+endfunction
+
+function! gitgutter#utility#not_git_dir() abort
+  return gitgutter#utility#full_path_to_directory_of_file() !~ '[/\\]\.git\($\|[/\\]\)'
+endfunction
+
+function! gitgutter#utility#is_file_buffer() abort
+  return empty(getbufvar(s:bufnr, '&buftype'))
+endfunction
+
+" A replacement for the built-in `shellescape(arg)`.
+"
+" Recent versions of Vim handle shell escaping pretty well.  However older
+" versions aren't as good.  This attempts to do the right thing.
+"
+" See:
+" https://github.com/tpope/vim-fugitive/blob/8f0b8edfbd246c0026b7a2388e1d883d579ac7f6/plugin/fugitive.vim#L29-L37
+function! gitgutter#utility#shellescape(arg) abort
+  if a:arg =~ '^[A-Za-z0-9_/.-]\+$'
+    return a:arg
+  elseif &shell =~# 'cmd' || gitgutter#utility#using_xolox_shell()
+    return '"' . substitute(substitute(a:arg, '"', '""', 'g'), '%', '"%"', 'g') . '"'
+  else
+    return shellescape(a:arg)
+  endif
+endfunction
+
+function! gitgutter#utility#set_buffer(bufnr) abort
+  let s:bufnr = a:bufnr
+  let s:file = resolve(bufname(a:bufnr))
+endfunction
+
+function! gitgutter#utility#bufnr()
+  return s:bufnr
+endfunction
+
+function! gitgutter#utility#file()
+  return s:file
+endfunction
+
+function! gitgutter#utility#filename() abort
+  return fnamemodify(s:file, ':t')
+endfunction
+
+function! gitgutter#utility#extension() abort
+  return fnamemodify(s:file, ':e')
+endfunction
+
+function! gitgutter#utility#full_path_to_directory_of_file() abort
+  return fnamemodify(s:file, ':p:h')
+endfunction
+
+function! gitgutter#utility#directory_of_file() abort
+  return fnamemodify(s:file, ':h')
+endfunction
+
+function! gitgutter#utility#exists_file() abort
+  return filereadable(s:file)
+endfunction
+
+function! gitgutter#utility#has_unsaved_changes() abort
+  return getbufvar(s:bufnr, "&mod")
+endfunction
+
+function! gitgutter#utility#has_fresh_changes() abort
+  return getbufvar(s:bufnr, 'changedtick') != getbufvar(s:bufnr, 'gitgutter_last_tick')
+endfunction
+
+function! gitgutter#utility#save_last_seen_change() abort
+  call setbufvar(s:bufnr, 'gitgutter_last_tick', getbufvar(s:bufnr, 'changedtick'))
+endfunction
+
+function! gitgutter#utility#shell_error() abort
+  return gitgutter#utility#using_xolox_shell() ? s:exit_code : v:shell_error
+endfunction
+
+function! gitgutter#utility#using_xolox_shell() abort
+  if s:using_xolox_shell == -1
+    if !g:gitgutter_avoid_cmd_prompt_on_windows
+      let s:using_xolox_shell = 0
+    " Although xolox/vim-shell works on both windows and unix we only want to use
+    " it on windows.
+    elseif has('win32') || has('win64') || has('win32unix')
+      let s:using_xolox_shell = exists('g:xolox#misc#version') && exists('g:xolox#shell#version')
+    else
+      let s:using_xolox_shell = 0
+    endif
+  endif
+  return s:using_xolox_shell
+endfunction
+
+function! gitgutter#utility#system(cmd, ...) abort
+  call gitgutter#debug#log(a:cmd, a:000)
+
+  if gitgutter#utility#using_xolox_shell()
+    let options = {'command': a:cmd, 'check': 0}
+    if a:0 > 0
+      let options['stdin'] = a:1
+    endif
+    let ret = xolox#misc#os#exec(options)
+    let output = join(ret.stdout, "\n")
+    let s:exit_code = ret.exit_code
+  else
+    silent let output = (a:0 == 0) ? system(a:cmd) : system(a:cmd, a:1)
+  endif
+  return output
+endfunction
+
+function! gitgutter#utility#file_relative_to_repo_root() abort
+  let file_path_relative_to_repo_root = getbufvar(s:bufnr, 'gitgutter_repo_relative_path')
+  if empty(file_path_relative_to_repo_root)
+    let dir_path_relative_to_repo_root = gitgutter#utility#system(gitgutter#utility#command_in_directory_of_file(g:gitgutter_git_executable.' rev-parse --show-prefix'))
+    let dir_path_relative_to_repo_root = gitgutter#utility#strip_trailing_new_line(dir_path_relative_to_repo_root)
+    let file_path_relative_to_repo_root = dir_path_relative_to_repo_root . gitgutter#utility#filename()
+    call setbufvar(s:bufnr, 'gitgutter_repo_relative_path', file_path_relative_to_repo_root)
+  endif
+  return file_path_relative_to_repo_root
+endfunction
+
+function! gitgutter#utility#command_in_directory_of_file(cmd) abort
+  return 'cd '.gitgutter#utility#shellescape(gitgutter#utility#directory_of_file()).' && '.a:cmd
+endfunction
+
+function! gitgutter#utility#highlight_name_for_change(text) abort
+  if a:text ==# 'added'
+    return 'GitGutterLineAdded'
+  elseif a:text ==# 'removed'
+    return 'GitGutterLineRemoved'
+  elseif a:text ==# 'removed_first_line'
+    return 'GitGutterLineRemovedFirstLine'
+  elseif a:text ==# 'modified'
+    return 'GitGutterLineModified'
+  elseif a:text ==# 'modified_removed'
+    return 'GitGutterLineModifiedRemoved'
+  endif
+endfunction
+
+function! gitgutter#utility#strip_trailing_new_line(line) abort
+  return substitute(a:line, '\n$', '', '')
+endfunction
+
+function! gitgutter#utility#git_version() abort
+  return matchstr(system(g:gitgutter_git_executable.' --version'), '[0-9.]\+')
+endfunction
+
+" True for git v1.7.2+.
+function! gitgutter#utility#git_supports_command_line_config_override() abort
+  let [major, minor, patch; _] = split(gitgutter#utility#git_version(), '\.')
+  return major > 1 || (major == 1 && minor > 7) || (minor == 7 && patch > 1)
+endfunction
+
+function! gitgutter#utility#stringify(list) abort
+  return join(a:list, "\n")."\n"
+endfunction
+
+function! gitgutter#utility#use_known_shell() abort
+  if has('unix')
+    let s:shell = &shell
+    let s:shellcmdflag = &shellcmdflag
+    set shell=/bin/sh
+    set shellcmdflag=-c
+  endif
+endfunction
+
+function! gitgutter#utility#restore_shell() abort
+  if has('unix')
+    let &shell = s:shell
+    let &shellcmdflag = s:shellcmdflag
+  endif
+endfunction