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vim-patch:9.0.0332: overwrite check may block BufWriteCmd (#20014)

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Problem:    Overwrite check may block BufWriteCmd.
Solution:   Do not use overwrite check when 'buftype' is "acwrite".
            (closes vim/vim#11011)
9c8f94636b
This commit is contained in:
zeertzjq
2022-08-31 06:27:39 +08:00
committed by GitHub
parent 813476bf72
commit 94a2bc5940
2 changed files with 24 additions and 4 deletions
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13
src/nvim/ex_cmds.c
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@@ -1996,11 +1996,16 @@ int check_overwrite(exarg_T *eap, buf_T *buf, char *fname, char *ffname, int oth
{
// 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
&& os_path_exists((char_u *)ffname)) {
if (!eap->forceit && !eap->append) {