Pacman {pre,post}-installation hooks?

Rexilion · 2013-12-30 08:37:33

Hi,

Most of my filesystems are ro mounted, it would be nice to have Pacman remount them as rw, install the packages and then remount them as ro.

I searched the wiki, Google and the forums and did not find any results.

I already have the script, just need to teach Pacman to use it . Does anyone now something about this? I'm starting to get the nasty feeling Pacman does not support this (which should not be *that* big a deal -> sudo is an alternative).

jasonwryan · 2013-12-30 09:18:38

Moving to Pacman & Package Upgrade Issues...

Allan · 2013-12-30 09:45:27

Not at the moment - although it would be easy to write a wrapper script.

Rexilion · 2013-12-30 10:47:25

Okay, thanks for the definitive answer.

A wrapper script would involve replacing Pacman right? I don't think that is a good idea, I'm planning on using Archlinux for my parents as well.

Trilby · 2013-12-30 12:55:34

Rexilion wrote:

A wrapper script would involve replacing Pacman right?

No, just "wrapping" it:

## in ~/.bashrc

pacman() {
    # remount rw here
    pacman $@
    # remount ro here
}

For a little better version, you might check the flags passed to determine whether remounting is really necessary.

Last edited by Trilby (2013-12-30 12:56:36)

Rexilion · 2013-12-30 16:09:23

Ah, I see. Thanks. But that is not going to fly when using gnome-packagekit. Thanks anyway. I'll just use some sudo magic . (If nothing better pops up).

progandy · 2013-12-30 16:56:09

Rexilion wrote:

Ah, I see. Thanks. But that is not going to fly when using gnome-packagekit. Thanks anyway. I'll just use some sudo magic . (If nothing better pops up).

Does gnome-packagekit use a fixed path? If not, just put the wrapper in /usr/local/bin which will be read before /usr/bin

Rexilion · 2013-12-30 16:58:56

Nice, that works!

progandy · 2013-12-30 17:21:03

Rexilion wrote:

Nice, that works!

Really? I just remembered that packagekit probably ignores packman completely an accesses libalpm directly.

Rexilion · 2013-12-30 17:23:28

Yes indeed, yelled too soon. What works was creating /usr/local/bin/pacman and link that to leafpad. Running pacman makes leafpad open right now.

So sudo it is!

Trilby · 2013-12-30 17:36:41

Rexilion wrote:

Ah, I see. Thanks. But that is not going to fly when using gnome-packagekit. Thanks anyway. I'll just use some sudo magic . (If nothing better pops up).

Ah ... then just apply the same logic to gnome-packagekit. Make a script in your path called gnome-packagekit that remounts rw, runs /usr/bin/gnome-packagekit (or whatever), then remounts ro.

Rexilion · 2013-12-30 17:38:29

My thoughts exactly. Only this will be gnome-packagekit specific and will not work with other (CLI) backends. But I can live with that. I guess Pacman is fast because it does not contain all these extra features. Which is why I liked it. It's faster than emerge, aptitude and yum. Which is pretty impressive.

Allan · 2013-12-31 02:05:34

Not really... not having hooks is making package installs slower at the moment.

Rexilion · 2014-03-02 12:01:43

Found this:

[root@delta gebruiker]# ls /etc/PackageKit/events/
post-transaction.d pre-transaction.d

These scripts run at every 'transaction' which, in the case of updating, means that updates are grouped together and processed in one 'transaction'.

Thrilled by this description I decided to have a look at the parameters that were passed using a temporary script.

terminal wrote:

[root@delta gebruiker]# cat /tmp/post /tmp/pre | grep NOTAPISTABLE$
# pre
get-updates NOTAPISTABLE
get-update-detail NOTAPISTABLE
get-details NOTAPISTABLE
simulate-update-packages NOTAPISTABLE
update-packages NOTAPISTABLE
# post
get-updates NOTAPISTABLE
get-update-detail NOTAPISTABLE
get-details NOTAPISTABLE
simulate-update-packages NOTAPISTABLE
update-packages NOTAPISTABLE

Ow well.

Arch Linux

#1 2013-12-30 08:37:33

Pacman {pre,post}-installation hooks?

#2 2013-12-30 09:18:38

Re: Pacman {pre,post}-installation hooks?

#3 2013-12-30 09:45:27

Re: Pacman {pre,post}-installation hooks?

#4 2013-12-30 10:47:25

Re: Pacman {pre,post}-installation hooks?

#5 2013-12-30 12:55:34

Re: Pacman {pre,post}-installation hooks?

#6 2013-12-30 16:09:23

Re: Pacman {pre,post}-installation hooks?

#7 2013-12-30 16:56:09

Re: Pacman {pre,post}-installation hooks?

#8 2013-12-30 16:58:56

Re: Pacman {pre,post}-installation hooks?

#9 2013-12-30 17:21:03

Re: Pacman {pre,post}-installation hooks?

#10 2013-12-30 17:23:28

Re: Pacman {pre,post}-installation hooks?

#11 2013-12-30 17:36:41

Re: Pacman {pre,post}-installation hooks?

#12 2013-12-30 17:38:29

Re: Pacman {pre,post}-installation hooks?

#13 2013-12-31 02:05:34

Re: Pacman {pre,post}-installation hooks?

#14 2014-03-02 12:01:43

Re: Pacman {pre,post}-installation hooks?

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