Horton

Re: pg_basebackup: errors on macOS on directories with ".DS_Store" files

Tom Lane <tgl@sss.pgh.pa.us>

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From: Tom Lane <tgl@sss.pgh.pa.us>
To: Tobias Bussmann <t.bussmann@gmx.net>
Cc: Mark Guertin <markguertin@gmail.com>, pgsql-bugs@lists.postgresql.org
Date: 2023-04-19T18:15:51Z
Lists: pgsql-bugs

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  1. Skip .DS_Store files in server side utils

Tobias Bussmann <t.bussmann@gmx.net> writes:
>> pg_basebackup: error: backup failed: ERROR:  invalid segment number 0 in file ".DS_Store"
> This seem to be the same problem as already discussed in [1]: Tools like pg_basebackup and pg_checksums can get upset if there are random extra files in $PGDATA/base, /global or /pg_tblspc. Unfortunately, macOS has the habit to create such files quite easily. If I read the outcome correctly, we are back at a blacklist approach, so adding ".DS_Store" may be something to consider. 
> [1]: <https://www.postgresql.org/message-id/flat/20181021134206.GA14282%40paquier.xyz>

Yeah.  I wonder if we ought to do something more general, and
ignore all files whose names start with ".".

			regards, tom lane