patch 8.2.4060: win_execute() slow on systems where getcwd()/chdir() is slow
Problem: win_execute() is slow on systems where getcwd() or chdir() is
slow. (Rick Howe)
Solution: Avoid using getcwd() and chdir() if no local directory is used and
'acd' is not set. (closes #9504)
diff --git a/src/evalwindow.c b/src/evalwindow.c
index f2d9a0b..a47a0c0 100644
--- a/src/evalwindow.c
+++ b/src/evalwindow.c
@@ -707,13 +707,26 @@
{
pos_T curpos = wp->w_cursor;
char_u cwd[MAXPATHL];
- int cwd_status;
+ int cwd_status = FAIL;
#ifdef FEAT_AUTOCHDIR
char_u autocwd[MAXPATHL];
int apply_acd = FALSE;
#endif
- cwd_status = mch_dirname(cwd, MAXPATHL);
+ // Getting and setting directory can be slow on some systems, only do
+ // this when the current or target window/tab have a local directory or
+ // 'acd' is set.
+ if (curwin != wp
+ && (curwin->w_localdir != NULL
+ || wp->w_localdir != NULL
+ || (curtab != tp
+ && (curtab->tp_localdir != NULL
+ || tp->tp_localdir != NULL))
+#ifdef FEAT_AUTOCHDIR
+ || p_acd
+#endif
+ ))
+ cwd_status = mch_dirname(cwd, MAXPATHL);
#ifdef FEAT_AUTOCHDIR
// If 'acd' is set, check we are using that directory. If yes, then