From f0af3c0f323ac33ea66691bdebb8d4e26f14ff66 Mon Sep 17 00:00:00 2001
From: Tom Ryder <tom@sanctum.geek.nz>
Date: Thu, 19 Nov 2020 20:58:03 +1300
Subject: Don't set XDG vars if not running under Unix

---
 vim/vimrc | 43 ++++++++++++++++++++++++-------------------
 1 file changed, 24 insertions(+), 19 deletions(-)

(limited to 'vim/vimrc')

diff --git a/vim/vimrc b/vim/vimrc
index 425a1d5b..0424fca2 100644
--- a/vim/vimrc
+++ b/vim/vimrc
@@ -2,7 +2,7 @@
 "  Tom Ryder (tejr)’s Literate Vimrc
 " ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
 "
-" Last updated: Fri, 23 Oct 2020 08:28:38 UTC
+" Last updated: Thu, 19 Nov 2020 07:55:42 UTC
 "
 " │ And I was lifted up in heart, and thought
 " │ Of all my late-shown prowess in the lists,
@@ -137,16 +137,18 @@ let $MYVIM = option#Split(&runtimepath)[0]
 " both the XDG_CONFIG_HOME and XDG_CONFIG_DIRS variables, or from their
 " defaults, using autoloaded xdg# functions.
 "
-let s:xdgcachehome
-      \ = xdg#CacheHome()
-let s:xdgconfigdirs
-      \ = xdg#ConfigDirs()
-let s:xdgconfighome
-      \ = xdg#ConfigHome()
-let s:xdgdatadirs
-      \ = xdg#DataDirs()
-let s:xdgdatahome
-      \ = xdg#DataHome()
+if has('unix')
+  let s:xdgcachehome
+        \ = xdg#CacheHome()
+  let s:xdgconfigdirs
+        \ = xdg#ConfigDirs()
+  let s:xdgconfighome
+        \ = xdg#ConfigHome()
+  let s:xdgdatadirs
+        \ = xdg#DataDirs()
+  let s:xdgdatahome
+        \ = xdg#DataHome()
+endif
 
 " We put XDG_CONFIG_HOME at the front of the 'runtimepath' list with insert(),
 " provided it isn't empty, which is what the function returns when the
@@ -161,7 +163,8 @@ let s:xdgdatahome
 "
 " Ours not to reason why…
 "
-if s:xdgconfighome !=# '' || !empty(s:xdgconfigdirs)
+if exists('s:xdgconfighome') && s:xdgconfighome !=# ''
+      \ || exists('s:xdgconfigdirs') && !empty(s:xdgconfigdirs)
   execute 'set runtimepath^='.option#Escape(join(map(
         \ extend(
           \ s:xdgconfighome !=# '' ? [s:xdgconfighome] : [],
@@ -188,7 +191,7 @@ endif
 " v8.1.716 introduced a way to set this with an option named 'viminfofile',
 " but I don't see a reason to use that.
 "
-if s:xdgcachehome !=# ''
+if exists('s:xdgcachehome') && s:xdgcachehome !=# ''
   if !isdirectory(s:xdgcachehome)
     call mkdir(s:xdgcachehome, 'p', 0700)
   endif
@@ -238,7 +241,7 @@ set history=300
 " 'backupfullname', 'swapfilefullname' would have been clearer.
 "
 set backup
-if s:xdgcachehome !=# ''
+if exists('s:xdgcachehome') && s:xdgcachehome !=# ''
   if !isdirectory(s:xdgcachehome.'/backup')
     call mkdir(s:xdgcachehome.'/backup', 'p', 0700)
   endif
@@ -299,7 +302,7 @@ endif
 " its name, in order to avoid filename collisions, since the 'directory'
 " option has supported that hint for much longer than 'backupdir' has.
 "
-if s:xdgcachehome !=# ''
+if exists('s:xdgcachehome') && s:xdgcachehome !=# ''
   if !isdirectory(s:xdgcachehome.'/swap')
     call mkdir(s:xdgcachehome.'/swap', 'p', 0700)
   endif
@@ -320,7 +323,7 @@ endif
 " Support for these persistent undo file caches was not released until v7.3.0,
 " so we need to check for the feature’s presence before we enable it.
 "
-if s:xdgcachehome !=# '' && has('persistent_undo')
+if exists('s:xdgcachehome') && s:xdgcachehome !=# '' && has('persistent_undo')
   set undofile
   if !isdirectory(s:xdgcachehome.'/undo')
     call mkdir(s:xdgcachehome.'/undo', 'p', 0700)
@@ -335,7 +338,7 @@ endif
 " directories of this type.  This isn't a comma-separated list like the others
 " ('backupdir', 'directory', 'spell', 'undodir')
 "
-if s:xdgcachehome !=# '' && has('mksession')
+if exists('s:xdgcachehome') && s:xdgcachehome !=# '' && has('mksession')
   if !isdirectory(s:xdgcachehome.'/view')
     call mkdir(s:xdgcachehome.'/view', 'p', 0700)
   endif
@@ -442,7 +445,8 @@ endif
 " directory.
 "
 set dictionary^=/usr/share/dict/words
-if s:xdgdatahome !=# '' || !empty(s:xdgdatadirs)
+if exists('s:xdgdatahome') && s:xdgdatahome !=# ''
+      \ || exists('s:xdgdatadirs') && !empty(s:xdgdatadirs)
   execute 'set dictionary^='.option#Escape(join(map(
         \ extend(
           \ s:xdgdatahome !=# '' ? [s:xdgdatahome] : [],
@@ -461,7 +465,8 @@ endif
 " WordNet and MyThes-1.  I had to remove the first two metadata lines from
 " thesaurus.txt, as Vim appeared to interpret them as part of the body data.
 "
-if s:xdgdatahome !=# '' || !empty(s:xdgdatadirs)
+if exists('s:xdgdatahome') && s:xdgdatahome !=# ''
+      \ || exists('s:xdgdatadirs') && !empty(s:xdgdatadirs)
   execute 'set thesaurus^='.option#Escape(join(map(
         \ extend(
           \ s:xdgdatahome !=# '' ? [s:xdgdatahome] : [],
-- 
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