Thread: pgsql: pg_regress: Don't use absolute paths for the diff

pgsql: pg_regress: Don't use absolute paths for the diff

From
Peter Eisentraut
Date:
pg_regress: Don't use absolute paths for the diff

Don't expand inputfile and outputfile to absolute paths globally, just
where needed.  In particular, pass them as is to the file name
arguments of the diff command, so that we don't see the full absolute
path in the diff header, which makes the diff unnecessarily verbose
and harder to read.

Discussion: https://www.postgresql.org/message-id/0cc82900-c457-1cee-3ab2-7b0f5d215061@2ndquadrant.com

Branch
------
master

Details
-------
https://git.postgresql.org/pg/commitdiff/1995552deb5479a50ec9044f0179f906ff7772e0

Modified Files
--------------
src/test/regress/pg_regress.c | 14 +++++---------
1 file changed, 5 insertions(+), 9 deletions(-)


Re: pgsql: pg_regress: Don't use absolute paths for the diff

From
Peter Geoghegan
Date:
On Thu, Feb 21, 2019 at 10:01 AM Peter Eisentraut <peter@eisentraut.org> wrote:
> pg_regress: Don't use absolute paths for the diff
>
> Don't expand inputfile and outputfile to absolute paths globally, just
> where needed.  In particular, pass them as is to the file name
> arguments of the diff command, so that we don't see the full absolute
> path in the diff header, which makes the diff unnecessarily verbose
> and harder to read.

This broke some of my tooling for quickly reconciling expected and
actual test outputs from my text editor.

I don't think that this was a great idea.

-- 
Peter Geoghegan


Re: pgsql: pg_regress: Don't use absolute paths for the diff

From
Andres Freund
Date:
On 2019-02-22 15:18:51 -0800, Peter Geoghegan wrote:
> On Thu, Feb 21, 2019 at 10:01 AM Peter Eisentraut <peter@eisentraut.org> wrote:
> > pg_regress: Don't use absolute paths for the diff
> >
> > Don't expand inputfile and outputfile to absolute paths globally, just
> > where needed.  In particular, pass them as is to the file name
> > arguments of the diff command, so that we don't see the full absolute
> > path in the diff header, which makes the diff unnecessarily verbose
> > and harder to read.
> 
> This broke some of my tooling for quickly reconciling expected and
> actual test outputs from my text editor.
> 
> I don't think that this was a great idea.

Same. The output in my local vpath build is now:

diff -du10 /home/andres/src/postgresql/src/test/regress/expected/strings.out ./results/strings.out
--- /home/andres/src/postgresql/src/test/regress/expected/strings.out   2019-02-08 23:47:42.975815837 -0800
+++ ./results/strings.out       2019-02-22 15:23:41.857719662 -0800

that's useless, because I can't trivially copy the result file into the
expected file anymore. I have to figure out where in the tree it
is. Which isn't exactly predictable, between the different tests we
have as they locate their test results in different places.

This is a bad idea.

Greetings,

Andres Freund


Re: pgsql: pg_regress: Don't use absolute paths for the diff

From
Michael Paquier
Date:
On Fri, Feb 22, 2019 at 03:26:35PM -0800, Andres Freund wrote:
> that's useless, because I can't trivially copy the result file into the
> expected file anymore. I have to figure out where in the tree it
> is. Which isn't exactly predictable, between the different tests we
> have as they locate their test results in different places.

I haven't paid much attention to this commit, but the new behavior is
likely something which will become annoying in some not-so-far future
for me as well.

> This is a bad idea.

+1.
--
Michael

Attachment

Re: pgsql: pg_regress: Don't use absolute paths for the diff

From
Stephen Frost
Date:
Greetings,

* Michael Paquier (michael@paquier.xyz) wrote:
> On Fri, Feb 22, 2019 at 03:26:35PM -0800, Andres Freund wrote:
> > that's useless, because I can't trivially copy the result file into the
> > expected file anymore. I have to figure out where in the tree it
> > is. Which isn't exactly predictable, between the different tests we
> > have as they locate their test results in different places.
>
> I haven't paid much attention to this commit, but the new behavior is
> likely something which will become annoying in some not-so-far future
> for me as well.
>
> > This is a bad idea.
>
> +1.

Yeah, same here, if I can't easily copy the result file into the
expected file, I'm going to be *most* annoyed...

Thanks!

Stephen

Attachment

Re: pgsql: pg_regress: Don't use absolute paths for the diff

From
Peter Eisentraut
Date:
OK, reverted.

-- 
Peter Eisentraut              http://www.2ndQuadrant.com/
PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services