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diff src/ex_cmds.c @ 29988:b2140f61826c v9.0.0332

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patch 9.0.0332: overwrite check may block BufWriteCmd Commit: https://github.com/vim/vim/commit/9c8f94636b3610b898ffbbd07f6b75866d16cbca Author: zeertzjq <zeertzjq@outlook.com> Date: Tue Aug 30 18:17:15 2022 +0100 patch 9.0.0332: overwrite check may block BufWriteCmd Problem: Overwrite check may block BufWriteCmd. Solution: Do not use overwrite check when 'buftype' is "acwrite". (closes #11011)
author Bram Moolenaar <Bram@vim.org>
date Tue, 30 Aug 2022 19:30:03 +0200
parents 4fcf816aa806
children bb0e525e1393
line wrap: on
line diff
--- a/src/ex_cmds.c
+++ b/src/ex_cmds.c
@@ -2094,12 +2094,17 @@ check_overwrite(
     /*
      * Write to another file or b_flags set or not writing the whole file:
      * overwriting only allowed with '!'.
+     * If "other" is FALSE and bt_nofilename(buf) is TRUE, this must be
+     * writing an "acwrite" buffer to the same file as its b_ffname, and
+     * buf_write() will only allow writing with BufWriteCmd autocommands,
+     * so there is no need for an overwrite check.
      */
     if (       (other
-		|| (buf->b_flags & BF_NOTEDITED)
-		|| ((buf->b_flags & BF_NEW)
-		    && vim_strchr(p_cpo, CPO_OVERNEW) == NULL)
-		|| (buf->b_flags & BF_READERR))
+		|| (!bt_nofilename(buf)
+		    && ((buf->b_flags & BF_NOTEDITED)
+			|| ((buf->b_flags & BF_NEW)
+			    && vim_strchr(p_cpo, CPO_OVERNEW) == NULL)
+			|| (buf->b_flags & BF_READERR))))
 	    && !p_wa
 	    && vim_fexists(ffname))
     {