Re: A test for replay of regression tests

From: Andrew Dunstan <andrew(at)dunslane(dot)net>
To: Thomas Munro <thomas(dot)munro(at)gmail(dot)com>, Anastasia Lubennikova <lubennikovaav(at)gmail(dot)com>
Cc: Andres Freund <andres(at)anarazel(dot)de>, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, pgsql-hackers <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: A test for replay of regression tests
Date: 2021-11-29 14:14:24
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On 11/23/21 10:47, Andrew Dunstan wrote:
> On 11/23/21 04:07, Thomas Munro wrote:
>> On Wed, Oct 6, 2021 at 7:10 PM Thomas Munro <thomas(dot)munro(at)gmail(dot)com> wrote:
>>> I wonder if for Windows we'd want to switch to real symlinks, since,
>>> as far as I know from some light reading, reparse points are converted
>>> to absolute paths on creation, so the pgdata directory would be less
>>> portable than it would be on POSIX systems.
>> I looked into that a bit, and it seems that the newer "real" symlinks
>> can't be created without admin privileges, unlike junction points, so
>> that wouldn't help. I still need to figure out what this
>> junction-based patch set is doing wrong on Windows though trial-by-CI.
>> In the meantime, here is a rebase over recent changes to the Perl
>> testing APIs.
> More exactly you need to "Create Symbolic Links" privilege. see
> <>
> I haven't yet worked out a way of granting that from the command line,
> but if it's working the buildfarm client (as of git tip) will use it on
> windows for the workdirs space saving feature.


There is a PowerShell module called Carbon which provides this and a
whole lot more. It can be installed in numerous ways, including via
Chocolatey. Here's what I am using:

choco install -y Carbon
Import-Module Carbon
Grant-CPrivilege -Identity myuser -Privilege SeCreateSymbolicLinkPrivilege

See <> The command name I
used above is now the preferred spelling, although that's not reflected
on the manual page.




Andrew Dunstan

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