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Buildfarm + Git tryouts

From: Chris Browne <cbbrowne(at)acm(dot)org>
To: pgsql-hackers(at)postgresql(dot)org
Subject: Buildfarm + Git tryouts
Date: 2010-07-05 16:33:49
Message-ID: 87eifhzy4y.fsf_-_@cbbrowne.afilias-int.info (view raw or flat)
Thread:
Lists: pgsql-hackers
I'm trying to start preparing buildfarm nodes for the upcoming Git
migration, and have run into a few issues.  I speculate that -hackers
is one of the better places for this to get discussed; if it should be
elsewhere, I'm sure Andrew Dunstan won't be shy to redirect this :-).

What I was hoping to do was to run nodes for a little while against
the repo at git://github.com/oicu/pg-cvs-mirror.git to validate that
it all works against git.

The best instructions available thus far...
<http://wiki.postgresql.org/wiki/PostgreSQL_Buildfarm_Howto>

Unfortunately, I'm finding some anomalies in terms of differences
between my environments and what that suggests.

1.  git clone --mirror is apparently new in git version 1.6

  <http://kerneltrap.org/mailarchive/git/2008/8/2/2793244>

  My somewhat mouldy Ubuntu node is on git 1.5.4, which doesn't
  include this.

  There's a workaround, as --mirror is just "syntactic sugar"

   $ git clone --mirror $URL
      may be replaced by
   $ git clone --bare $URL
   $ (cd $(basename $URL) && git remote add --mirror origin $URL)

  I see options:
   a) Require git 1.6 or so (latest stable is 1.7.1.1)
   b) Offer the alternative mirror approach

2.  SCM.pl seems to expect the repository directory to be called 
    "pgsql" (around line #373)

    I wound up hacking up the code to head to a specific directory,
    which isn't a terribly good hack, but apparently works for now.

-               chdir 'pgsql';
+               chdir '/opt/build-farm/pgsql.git';

    It feels as though something's not quite right about how the
    nearby Git repository is referenced.

3.  Some problems checking status.

i) Status Line: 491 bad ts parameter - [timestamp omitted] is in the future

I know my clock's reasonable - ntp is reporting I'm within 0.25s of
some stratum 2 nodes.  Is it possible that the buildfarm server is
ill-synced?

ii) Status Line: 460 script version too low

I just pulled a buildfarm build last week, so I'm not sure what this
would relate to.

That's where I've gotten thus far.  Node caracara isn't reporting in
just now because of this testing.  I hope other people ought to be
doing similar tryouts so that the revision effort to shift to Git
doesn't wait to *start* until the development repo shifts.
-- 
let name="cbbrowne" and tld="gmail.com" in String.concat "@" [name;tld];;
http://linuxfinances.info/info/linuxdistributions.html
Rules of the Evil Overlord #77. "If I have a fit of temporary insanity
and decide to give  the hero the chance to reject a  job as my trusted
lieutentant,  I will  retain enough  sanity to  wait until  my current
trusted  lieutenant  is  out  of  earshot before  making  the  offer."
<http://www.eviloverlord.com/>

Responses

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Next:From: Alvaro HerreraDate: 2010-07-05 17:23:40
Subject: Re: Buildfarm + Git tryouts
Previous:From: Tom LaneDate: 2010-07-05 16:18:38
Subject: Re: logistics for beta3

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