From 3b9aa6b162490b3c0976234fa1037be2d47017af Mon Sep 17 00:00:00 2001
From: Steven Stallion <sstallion@gmail.com>
Date: Sat, 30 Mar 2019 21:10:14 -0500
Subject: [PATCH] Support file exclusion in link generation

---
 autoload/vimwiki/base.vim | 12 +++++++++++-
 autoload/vimwiki/vars.vim |  1 +
 doc/vimwiki.txt           | 11 +++++++++++
 3 files changed, 23 insertions(+), 1 deletion(-)

diff --git a/autoload/vimwiki/base.vim b/autoload/vimwiki/base.vim
index 8e3af9a..d332d5d 100644
--- a/autoload/vimwiki/base.vim
+++ b/autoload/vimwiki/base.vim
@@ -452,7 +452,17 @@ function! vimwiki#base#find_files(wiki_nr, directories_only)
   else
     let pattern = '**/*'.ext
   endif
-  return split(globpath(root_directory, pattern), '\n')
+  let files = globpath(root_directory, pattern, 0, 1)
+  " filter excluded files before returning
+  function! ExcludeFiles(idx, val) closure
+    for pattern in vimwiki#vars#get_wikilocal('exclude_files')
+      if index(globpath(root_directory, pattern, 0, 1), a:val) != -1
+        return 0
+      endif
+    endfor
+    return 1
+  endfunction
+  return filter(files, funcref('ExcludeFiles'))
 endfunction
 
 
diff --git a/autoload/vimwiki/vars.vim b/autoload/vimwiki/vars.vim
index 85cf852..f04db38 100644
--- a/autoload/vimwiki/vars.vim
+++ b/autoload/vimwiki/vars.vim
@@ -266,6 +266,7 @@ function! s:populate_wikilocal_options()
         \ 'diary_rel_path': {'type': type(''), 'default': 'diary/', 'min_length': 1},
         \ 'diary_caption_level': {'type': type(0), 'default': 0, 'min': -1, 'max': 6},
         \ 'diary_sort': {'type': type(''), 'default': 'desc', 'possible_values': ['asc', 'desc']},
+        \ 'exclude_files': {'type': type([]), 'default': []},
         \ 'ext': {'type': type(''), 'default': '.wiki', 'min_length': 1},
         \ 'index': {'type': type(''), 'default': 'index', 'min_length': 1},
         \ 'list_margin': {'type': type(0), 'default': -1, 'min': -1},
diff --git a/doc/vimwiki.txt b/doc/vimwiki.txt
index 82c8eb3..27e7d40 100644
--- a/doc/vimwiki.txt
+++ b/doc/vimwiki.txt
@@ -2390,6 +2390,17 @@ current wiki page is saved: >
   let g:vimwiki_list = [{'path': '~/my_site/', 'auto_generate_tags': 1}]
 
 
+*vimwiki-option-exclude_files*
+------------------------------------------------------------------------------
+Key             Default value     Values~
+exclude_files   []                list of file patterns to exclude
+
+Description~
+Set this option to a list of file patterns to exclude when checking or
+generating links: >
+  let g:vimwiki_list = [{'path': '~/my_site/', 'exclude_files': ['**/README.md']}]
+
+
 ------------------------------------------------------------------------------
 12.4 Global Options                                   *vimwiki-global-options*