[gentoo-portage-dev] Running commands after a merge (via /etc/portage/package.hooks)

[gentoo-portage-dev] Running commands after a merge (via /etc/portage/package.hooks)

[Elfyn McBratney]

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Hello,

I'm about to start working on a new portage feature that allows you to run
commands (basically, bash syntax) before a merge and after a successful
merge.

(At work, we have a lot of virtual hosts with auto-generated vhosts.conf files
for apache, with configuration data stored in XML files and/or databases, and
having them updated automatically on apache upgrades would ease maintenance
burdens. :)

What I would like to do is add a new file to /etc/portage - package.hooks
(open to suggestions on better names ;), which would contain category/package
atoms and shell commands, ala:

  [atom] 'before' '(' shell code ')' or
  [atom] 'after' '(' shell code ')' or

e.g.

  net-www/apache after apache-update-vhosts
  net-www/apache after (foo && do-bar || die "do-bar failed")

Where atom's marked with before would run before the merge, and packages with
after (or none specified) would be run after the merge.

Before I start, does this feature sound useful for other gentoo'ers? :)  If
I've also left out something really important (happens ;), please ask. =)

Comments, flames, etc, welcome. :)

Elfyn

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Re: [gentoo-portage-dev] Running commands after a merge (via /etc/portage/package.hooks)

[Joseph Booker]

On Wed, September 22, 2004 6:02 am, Elfyn McBratney said:
> -----BEGIN PGP SIGNED MESSAGE-----
> Hash: SHA1
>
> Hello,
>
> I'm about to start working on a new portage feature that allows you to run
> commands (basically, bash syntax) before a merge and after a successful
> merge.
>
> (At work, we have a lot of virtual hosts with auto-generated vhosts.conf
> files
> for apache, with configuration data stored in XML files and/or databases,
> and
> having them updated automatically on apache upgrades would ease
> maintenance
> burdens. :)
>
> What I would like to do is add a new file to /etc/portage - package.hooks
> (open to suggestions on better names ;), which would contain
> category/package
> atoms and shell commands, ala:
>
>   [atom] 'before' '(' shell code ')' or
>   [atom] 'after' '(' shell code ')' or
>
> e.g.
>
>   net-www/apache after apache-update-vhosts
>   net-www/apache after (foo && do-bar || die "do-bar failed")

Could this kind of syntax be added also
    net-www/apache after |mail admin@localhost webmaster@localhost -s
"Apache updated by cronjob, just letting you know how it went"

Basicly, add the ability to pipe it places

-- 
Joseph Booker
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jj110888 @ irc.freenode.net


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[Michael Kohl]

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Re: [gentoo-portage-dev] Running commands after a merge (via /etc/portage/package.hooks)

[Elfyn McBratney]

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Hello Joseph,

On Wednesday 22 Sep 2004 20:46, Joseph Booker wrote:
> On Wed, September 22, 2004 6:02 am, Elfyn McBratney said:
> > [...]
> > > > 
> > What I would like to do is add a new file to /etc/portage - package.hooks
> > (open to suggestions on better names ;), which would contain
> > category/package
> > atoms and shell commands, ala:
> >
> >   [atom] 'before' '(' shell code ')' or
> >   [atom] 'after' '(' shell code ')' or
> >
> > e.g.
> >
> >   net-www/apache after apache-update-vhosts
> >   net-www/apache after (foo && do-bar || die "do-bar failed")
>
> Could this kind of syntax be added also
>     net-www/apache after |mail admin@localhost webmaster@localhost -s
> "Apache updated by cronjob, just letting you know how it went"
>
> Basicly, add the ability to pipe it places

Once I have something simple and working (abt an hour - patch found in url 
posted above) I'll give that a go, but should be pisk easy given bash is 
doing the hard work. ;-)

Elfyn

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Re: [gentoo-portage-dev] Running commands after a merge (via /etc/portage/package.hooks)

[Jeff Smelser]

On Wednesday 22 September 2004 06:02 am, Elfyn McBratney wrote:

> Before I start, does this feature sound useful for other gentoo'ers? :)  If
> I've also left out something really important (happens ;), please ask. =)

I would like to see a default for anything.. I would probably set up something 
to mail me the log file as it completes successfully.. 

* | mailx blah blah

Jeff

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Re: [gentoo-portage-dev] Running commands after a merge (via /etc/portage/package.hooks)

[Colin Kingsley]

Ths sounds usefull, but similar to package.cflags and a few other
things, probably takes alot of work to implement and doesnt benefit
enough users to justify it.

But if I'm wrong, then awesome, this sounds cool.

Colin

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Re: [gentoo-portage-dev] Running commands after a merge (via /etc/portage/package.hooks)

[Sven Vermeulen]

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On Wed, Sep 22, 2004 at 10:56:01PM -0400, Colin Kingsley wrote:
> Ths sounds usefull, but similar to package.cflags and a few other
> things, probably takes alot of work to implement and doesnt benefit
> enough users to justify it.

Can the ebuild's test function be (ab)used for this? It does mean altering
the ebuild (so it's less userfriendly) though.

Wkr,
      Sven Vermeulen

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Re: [gentoo-portage-dev] Running commands after a merge (via /etc/portage/package.hooks)

[Jason Stubbs]

On Thursday 23 September 2004 19:48, Sven Vermeulen wrote:
> On Wed, Sep 22, 2004 at 10:56:01PM -0400, Colin Kingsley wrote:
> > Ths sounds usefull, but similar to package.cflags and a few other
> > things, probably takes alot of work to implement and doesnt benefit
> > enough users to justify it.
>
> Can the ebuild's test function be (ab)used for this? It does mean altering
> the ebuild (so it's less userfriendly) though.

The test function wouldn't work for two reasons. One is that the test function 
is run before the package is merged to the live filesystem. Actually, it's 
run before src_install is even ran. The second reason is that it is not run 
at all for binary packages.

Regards,
Jason Stubbs

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Re: [gentoo-portage-dev] Running commands after a merge (via /etc/portage/package.hooks)

[Michael Kohl]

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On Thu, 23 Sep 2004 21:50:38 +0900
Jason Stubbs <jstubbs@gentoo.org> wrote:

> The test function wouldn't work for two reasons. One is that the test
> function is run before the package is merged to the live filesystem.
> Actually, it's run before src_install is even ran. The second reason
> is that it is not run at all for binary packages.

Would it be possible to add something to pkg_postinst which would parse
this proposed new file in /etc/portage?

Regards

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Michael Kohl <citizen428@gentoo.org>

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Re: [gentoo-portage-dev] Running commands after a merge (via /etc/portage/package.hooks)

[Marius Mauch]

On 09/24/04  Michael Kohl wrote:

> On Thu, 23 Sep 2004 21:50:38 +0900
> Jason Stubbs <jstubbs@gentoo.org> wrote:
> 
> > The test function wouldn't work for two reasons. One is that the
> > test function is run before the package is merged to the live
> > filesystem. Actually, it's run before src_install is even ran. The
> > second reason is that it is not run at all for binary packages.
> 
> Would it be possible to add something to pkg_postinst which would
> parse this proposed new file in /etc/portage?

Ehm, this file hasn't even been discussed really, so there isn't really
a point to ask about implementation details. Also, why would you want to
parse it from an ebuild?

Marius

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Re: [gentoo-portage-dev] Running commands after a merge (via /etc/portage/package.hooks)

[Michael Kohl]

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On Fri, 24 Sep 2004 10:28:15 +0200
Marius Mauch <genone@gentoo.org> wrote:

> On 09/24/04  Michael Kohl wrote:

> > Would it be possible to add something to pkg_postinst which would
> > parse this proposed new file in /etc/portage?
> 
> Ehm, this file hasn't even been discussed really, so there isn't
> really a point to ask about implementation details. 

True.

> Also, why would you want to parse it from an ebuild?

Sorry, I won't post again before having my first coffee.

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Re: [gentoo-portage-dev] Running commands after a merge (via /etc/portage/package.hooks)

[Elfyn McBratney]

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hello Marius,

On Friday 24 Sep 2004 09:28, Marius Mauch wrote:
> On 09/24/04  Michael Kohl wrote:
> > On Thu, 23 Sep 2004 21:50:38 +0900
> >
> > Jason Stubbs <jstubbs@gentoo.org> wrote:
> > > The test function wouldn't work for two reasons. One is that the
> > > test function is run before the package is merged to the live
> > > filesystem. Actually, it's run before src_install is even ran. The
> > > second reason is that it is not run at all for binary packages.
> >
> > Would it be possible to add something to pkg_postinst which would
> > parse this proposed new file in /etc/portage?
>
> Ehm, this file hasn't even been discussed really, so there isn't really
> a point to ask about implementation details. Also, why would you want to
> parse it from an ebuild?

;-)

I'll upload a patch (against latest portage CVS) to 
<http://elfyn.demon.co.uk/> soon (the name will be obvious 8-)

Elfyn

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Re: [gentoo-portage-dev] Running commands after a merge (via /etc/portage/package.hooks)

[Elfyn McBratney]

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Hey Colin,

On Thursday 23 Sep 2004 03:56, Colin Kingsley wrote:
> Ths sounds usefull, but similar to package.cflags and a few other
> things,

Except, this isn't exactly a build time thing.. if package.cflags (hmm) went 
wrong/bad/whatever, you might get a broken updated 'thing', due to build 
errors.  Ehm, anyway.. wrong, wrong, place for it, imo. ;-)

> probably takes alot of work to implement and doesnt benefit 
> enough users to justify it.

Not much work, ~50 lines now and sorta working. :-)

> But if I'm wrong, then awesome, this sounds cool.

Well, one way it sits on my space and a few use it, other way it goes into 
portage and maybe a few more use it and benefit from it.  Who knows... 

:-)

Elfyn

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Re: [gentoo-portage-dev] Running commands after a merge (via /etc/portage/package.hooks)

[Elfyn McBratney]

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Hey Jeff,

On Wednesday 22 Sep 2004 20:52, Jeff Smelser wrote:
> On Wednesday 22 September 2004 06:02 am, Elfyn McBratney wrote:
> > Before I start, does this feature sound useful for other gentoo'ers? :) 
> > If I've also left out something really important (happens ;), please ask.
> > =)
>
> I would like to see a default for anything.. I would probably set up
> something to mail me the log file as it completes successfully..
>
> * | mailx blah blah

At the mo, it's just a prototype, but piping should be simple enough to add 
once it's working (just started on it now ;-)

Elfyn

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