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patch 9.0.0332: overwrite check may block BufWriteCmd

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Problem:    Overwrite check may block BufWriteCmd.
Solution:   Do not use overwrite check when 'buftype' is "acwrite".
            (closes #11011)
This commit is contained in:
zeertzjq
2022-08-30 18:17:15 +01:00
committed by Bram Moolenaar
parent 3e518a8ec7
commit 9c8f94636b
3 changed files with 26 additions and 4 deletions
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13
src/ex_cmds.c
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@@ -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))
{