Add a CrBuild command to ninja-build.vim

tools/vim/ninja-build.vim

 " Copyright (c) 2012 The Chromium Authors. All rights reserved.
 " Use of this source code is governed by a BSD-style license that can be
 " found in the LICENSE file.
 "
 " Adds a "Compile this file" function, using ninja. On Mac, binds Cmd-k to
 " this command. On Windows, Ctrl-F7 (which is the same as the VS default).

[tfarina, 2012/10/17 01:53:02]

Is there a keystroke for Linux/Unix as well? 

[Nico, 2012/10/17 02:10:51]

see line 127 (unrelated to tjis cl tho)

 "
+" Adds a "Build this target" function, using ninja. This is not bound
+" to any key by default, but can be used via the :CrBuild command.
+" It builds 'chrome' by default, but :CrBuild target1 target2 etc works as well.
+"
 " Requires that gyp has already generated build.ninja files, and that ninja is
 " in your path (which it is automatically if depot_tools is in your path).
 "
 " Add the following to your .vimrc file:
 "     so /path/to/src/tools/vim/ninja-build.vim
 
 python << endpython
 import os
 import vim
 
@@ skipping 31 matching lines @@
       rel_mtime = os.path.getmtime(os.path.join(root, 'Release',  test_path))
     except os.error:
       rel_mtime = 0
     return rel_mtime - debug_mtime >= 15
   configuration = 'Debug'
   if is_release_15s_newer('build.ninja') or is_release_15s_newer('protoc'):
     configuration = 'Release'
   return configuration
 
 
-def compute_ninja_command(configuration=None):
+def compute_ninja_command_for_current_buffer(configuration=None):
   """Returns the shell command to compile the file in the current buffer."""
   if not configuration: configuration = guess_configuration()
   build_dir = os.path.join(path_to_source_root(), 'out', configuration)
 
   # ninja needs filepaths for the ^ syntax to be relative to the
   # build directory.
   file_to_build = path_to_current_buffer()
   file_to_build = os.path.relpath(file_to_build, build_dir)
 
-  return ' '.join(['ninja', '-C', build_dir, file_to_build + '^'])
-
-
-def set_makepgr_to_single_file_ninja():
-  build_cmd = compute_ninja_command()
+  build_cmd = ' '.join(['ninja', '-C', build_dir, file_to_build + '^'])
   if sys.platform == 'win32':
     # Escape \ for Vim, and ^ for both Vim and shell.
     build_cmd = build_cmd.replace('\\', '\\\\').replace('^', '^^^^')
-  vim.command('let &makeprg=\'%s\'' % build_cmd)
+  vim.command('return "%s"' % build_cmd)
+
+
+def compute_ninja_command_for_targets(targets='', configuration=None):
+  if not configuration: configuration = guess_configuration()
+  build_dir = os.path.join(path_to_source_root(), 'out', configuration)
+  build_cmd = ' '.join(['ninja', '-C', build_dir, targets])
+  vim.command('return "%s"' % build_cmd)
 endpython
 
-fun! CrCompileFile()
+fun! s:MakeWithCustomCommand(build_cmd)
   let l:oldmakepgr = &makeprg
-  python set_makepgr_to_single_file_ninja()
+  let &makeprg=a:build_cmd
   silent make | cwindow
   if !has('gui_running')
     redraw!
   endif
   let &makeprg = l:oldmakepgr
 endfun
 
+fun! s:NinjaCommandForCurrentBuffer()
+  python compute_ninja_command_for_current_buffer()
+endfun
+
+fun! s:NinjaCommandForTargets(targets)
+  python compute_ninja_command_for_targets(vim.eval('a:targets'))
+endfun
+
+fun! CrCompileFile()
+  call s:MakeWithCustomCommand(s:NinjaCommandForCurrentBuffer())
+endfun
+
+fun! CrBuild(...)
+  let l:targets = a:0 > 0 ? join(a:000, ' ') : ''
+  if (l:targets !~ "\i")
+    let l:targets = 'chrome'
+  endif
+  call s:MakeWithCustomCommand(s:NinjaCommandForTargets(l:targets))
+endfun
+
 command! CrCompileFile call CrCompileFile()
+command! -nargs=* CrBuild call CrBuild(<q-args>)
 
 if has('mac')
   map <D-k> :CrCompileFile<cr>
   imap <D-k> <esc>:CrCompileFile<cr>
 elseif has('win32')
   map <C-F7> :CrCompileFile<cr>
   imap <C-F7> <esc>:CrCompileFile<cr>
 elseif has('unix')
   map <Leader>o :CrCompileFile<cr>
 endif