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Subject: Re: Fir mkdir command in "Short Version" for installing from source
From: Daniel Gustafsson <daniel@yesql.se>
In-Reply-To: <172346.1647266492@sss.pgh.pa.us>
Date: Mon, 14 Mar 2022 15:28:47 +0100
Cc: "Daniel Westermann (DWE)" <daniel.westermann@dbi-services.com>,
 "pgsql-docs@lists.postgresql.org" <pgsql-docs@lists.postgresql.org>
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To: Tom Lane <tgl@sss.pgh.pa.us>
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> On 14 Mar 2022, at 15:01, Tom Lane <tgl@sss.pgh.pa.us> wrote:
>=20
> Daniel Gustafsson <daniel@yesql.se> writes:
>> On 13 Mar 2022, at 17:05, Daniel Westermann (DWE) =
<daniel.westermann@dbi-services.com> wrote:
>>> Is it worth fixing that with "mkdir -p ..."?=20
>=20
>> Well, it will fail unless the user already had /usr/local/pgsql/, but =
I hear
>> what you're saying.  Though I bet almost anyone following this will =
be able to
>> figure it out but there is little to no value in not being correct.
>=20
> I think that at the time that was written, mkdir didn't universally
> have a "-p" option.  But POSIX has required that for a very long
> time, so it's probably safe to assume it now.

Yeah, I wasn't able to find any credibly still useable system man page =
which
didn't list -p.  (the fact that IRIX seems to have been one of very few =
to have
a long option '--parents' was an interesting archeological tidbit =
learned.)

> A larger issue is that blind "mkdir -p" may not produce the ownerships
> and permissions you want for the parent directories.  That's not a
> topic to get into in a one-line summary, though.

Agreed, we're skipping over lots of details in this short version.

I'll to make the mkdir -p change happen later today unless someone feels
strongly about leaving it out.

--
Daniel Gustafsson		https://vmware.com/