Speedup, only run helptags core/doc when necessary (#487)

liuchengxu · May 13, 2022 · 36f61f8 · 36f61f8
1 parent 07c136e
commit 36f61f8
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Showing 2 changed files with 13 additions and 5 deletions.
diff --git a/.gitignore b/.gitignore
@@ -18,6 +18,7 @@ tags
 autoload/plug.vim
 core/autoload/info.vim
 core/autoload/spacevim/info.vim
+core/doc/.spacevim_last_helptags_run
 plugged/*
 *.un~
 private/*

diff --git a/core/autoload/spacevim.vim b/core/autoload/spacevim.vim
@@ -145,11 +145,18 @@ function! spacevim#end() abort
   call s:config()
   if exists('*UserConfig') | call UserConfig() | endif
 
-  try
-    execute 'helptags' g:spacevim.base . '/core/doc'
-  catch
-    echom v:exception
-  endtry
+  let helptag_file = g:spacevim.base . '/core/doc/spacevim.txt'
+  let helptag_time = getftime(helptag_file)
+  let helptag_lastrun_file = g:spacevim.base . '/core/doc/.spacevim_last_helptags_run'
+  let helptag_lastrun_time = filereadable(helptag_lastrun_file) ? readfile(helptag_lastrun_file) : []
+  if (len(helptag_lastrun_time) != 1) || (helptag_lastrun_time[0] != helptag_time)
+    try
+      execute 'helptags' g:spacevim.base . '/core/doc'
+      call writefile([helptag_time], helptag_lastrun_file)
+    catch
+      echom v:exception
+    endtry
+  endif
 
   call s:check_missing_plugins()
   silent doautocmd <nomodeline> User SpacevimAfterUserConfig