autoload/magit/state.vim: by default, do not show untracked/deleted/a…

…dded/renamed files diffs (ref #28)

README.md

@@ -104,7 +104,7 @@ It takes 3 parameters:
       - 'h', curent window is split horizontally, and magit is displayed in
         new buffer
       - 'c', magit is displayed in current buffer
-  * show_all_files: define is file diffs are shown by default for this session
+  * show_all_files: define how file diffs are shown by default for this session
     (see [g:magit_default_show_all_files](#gmagit_default_show_all_files))
   * foldlevel: set default magit buffer foldlevel for this session
     (see [g:magit_default_fold_level](#gmagit_default_fold_level))
@@ -206,7 +206,8 @@ To disable chatty inline help in magit buffer (default 1)
 #### g:magit_default_show_all_files
 
 When this variable is set to 0, all diff files are hidden by default.
-When this variable is set to 1, all diff files are shown by default.
+When this variable is set to 1, all diff for modified files are shown by default.
+When this variable is set to 2, all diff for all files are shown by default.
 Default value is 0.
 NB: for repository with large number of differences, display may be slow.
 > let g:magit_default_show_all_files=[01]

autoload/magit/state.vim

@@ -21,7 +21,9 @@ function! magit#state#init_file_visible() dict
 	if ( !self.new )
 		return self.is_visible()
 	else
-		call self.set_visible(b:magit_default_show_all_files)
+		if ( self.status == 'M' || b:magit_default_show_all_files > 1 )
+			call self.set_visible(b:magit_default_show_all_files)
+		endif
 		return self.is_visible()
 	endif
 endfunction

doc/vimagit.txt

@@ -121,12 +121,12 @@ It takes 3 parameters:
       - 'h', curent window is split horizontally, and magit is displayed in
         new buffer
       - 'c', magit is displayed in current buffer
-  * show_all_files: define is file diffs are shown by default for this session
+  * show_all_files: define how file diffs are shown by default for this session
     (see |vimagit-g:magit_default_show_all_files|)
   * foldlevel: set default magit buffer foldlevel for this session
     (see |vimagit-g:magit_default_fold_level|)
 
-                                        *:Magit*           *magit#show_magit('v')*
+                                        *:Magit*          *magit#show_magit('v')*
   :Magit    open magit buffer
 
 
@@ -263,7 +263,8 @@ let g:magit_show_help=[01]
 
                                         *vimagit-g:magit_default_show_all_files*
 When this variable is set to 0, all diff files are hidden by default.
-When this variable is set to 1, all diff files are shown by default.
+When this variable is set to 1, all diff for modified files are shown by default.
+When this variable is set to 2, all diff for all files are shown by default.
 Default value is 0.
 NB: for repository with large number of differences, display may be slow.
 let g:magit_default_show_all_files=[01]