.vimrc: Run `chmod` silently

[dotfiles.git] / .vimrc

diff --git a/.vimrc b/.vimrc
index ea2fa7960123b855f27c048fcbc08b7bfcbfc522..0ff6ea1ec534ac8bde907caba3e627d601bb0d86 100644 (file)
--- a/.vimrc
+++ b/.vimrc
@@ -343,11 +343,13 @@ function! SetupEncoding(encoding)
 
    call RestorePosition()
    let b:encoding_set = 1
-   execute "edit ++enc=" . a:encoding
+   if len(expand('%'))
+      execute "edit ++enc=" . a:encoding
+   endif
 endfunction
 
 
-" http://lwn.net/Articles/226514/
+" From http://lwn.net/Articles/226514/
 
 augroup gpg
 " Remove ALL autocommands for the current group.
@@ -581,6 +583,32 @@ END_OF_PYTHON
 endif
 
 
+" From Tip 212:
+" http://vim.wikia.com/wiki/Setting_file_attributes_without_reloading_a_buffer
+
+if executable('chmod')
+   function! SetExecutableBit(x)
+      checktime
+      " Avoid 'Reload Y/N?' question
+      autocmd FileChangedShell <buffer> call _BufChangedCB()
+      let fx = executable(expand("%:p"))
+      if a:x && !fx
+         silent !chmod a+x %
+      elseif !a:x && fx
+         silent !chmod a-x %
+      endif
+      if v:shell_error
+         echoerr 'Error running chmod: ' . v:shell_error
+      endif
+      checktime
+   endfunction
+   function! _BufChangedCB()
+      autocmd! FileChangedShell <buffer>
+   endfunction
+   command! ToggleXbit if executable(expand("%:p")) | call SetExecutableBit(0) | else | call SetExecutableBit(1) | endif
+endif
+
+
 " ----------
 " From http://slobin.pp.ru/vim/_vimrc.html
 
@@ -622,7 +650,8 @@ endif
 
 
 " Called automagically after every buffer read, enables fileencoding
-" setting from modeline (see Tip #911: http://vim.wikia.com/wiki/VimTip911)
+" setting from modeline (see Tip #911:
+" http://vim.wikia.com/wiki/How_to_make_fileencoding_work_in_the_modeline)
 function! AutoEncoding()
   if &modified && &fileencoding != ""
     call SetupEncoding(&fileencoding)