Slackcurrent - Keep your Slack box updated!

Versão em Português

What is Slackcurrent?

Slackcurrent is a package to check for newer packages installed on your Slackware box on the current set on some mirror site you select on a list.
It get the list of packages installed local, if needed update the list of remote files available on the mirror site, and compares they all. If some local package is outdated, you'll be informed about that.

I thought it makes more stuff.

No, I does not. It's strongly based on the KISS (Keep It Simple, Stupid) principle, so it is a really tiny program that can help you only to check for new packages.

There is some other apps that do that.

Yeah, but they presume you want to check for new packages and download it automatically. Suppose you have a dial up connection with a 56k modem at home and a fast connection on your job (I'm presuming you can use it at your job without problems) and wants to upgrade your home Slackware box. Better yet, you don't have even Slackware at your job, you're using another distro or that other ugly operating system. Will be a good idea you just check for new packages at home and download it at your job, right?

Yeah, that looks good. But how can I do that?

Slackcurrent will generate a file with the list of packages that needs to be upgraded. Just the list. You make what you want with it. Copy to a floppy and take it with you to your job to download it, send it to your email, send it by ftp to your job computer, send to your uncle, make a list of the newest files and put it on your site, you choose.
The file is named slackcurrent.list.

Ok, now what? I have the list.

Use a download manager like wget to get your files. You can use like this:

wget <your wget options here> -i slackcurrent.list

Is there a way to check the files integrity?

Yes, sure. Slackcurrent presumes that each package that needs upgrade have a .asc file with the same name of the package, and tries to download it. Maybe there is one, maybe there is not. But after downloading the packages and the .asc is up to you to check their signatures. Keep it simple. :-)
You can use the -cs/--check-sign option (see below) for this.

But I don't want to download the kernel files! I compile my kernels!

Two options: you can edit the list and remove the files you don't want to download or you can use the blacklist file on the /etc/slackcurrent directory.
I think the second one is a good idea. :-)

What are the options I have to run it?

They are:

I'm still a little confused on how to use it ...

Ok, get the latest package here, install it on your Slackware box and type, as root: -u <software set>

Since it's the first time you run Slackcurrent, it will see that there is no a list with the remote files and will tell you and ask if you want to download it.
If you don't download the list you'll have no way to check your local packages against the files on the current set, so it's mandatory you download the list. It's a 500kb +/- file.
But, it will only asks you to download the file list if it knows where the file list is. Uncomment only one row with the server you want to download your packages in the /etc/slackcurrent/mirrors file. You can update the list using the -um option also.
After choosing a server and downloading the list of newest remote files, you'll have the list of the packages you need very quickly.
A quick tip: Slackcurrent will tell you if your list of remote files are older than 1 week.
Some samples usages: -u slackware -u slackware/xap -u slackware/gnome -u extra

What do I need to run it?

A Slackware box and Python installed.

Where can I download Slackcurrent?

Here. Is a tiny file.

And the license is ...

GPL. Always.

Is there some other docs about it?

Martin Sinkovec wrote a HOWTO about upgrading to Slackware-current using slackcurrent. Thanks Martin!

Another fine article here, by Mike Oliveri. Thanks Mike!

An Underlinux article by Vagner "BugReport" Rodrigues Fernandes (Portuguese only). Thanks, Vagner!

Hey, cool, I know Python programming!

Good! So you can use the Slackcurrent stuff inside your programs. Let me show some options:
Python 2.4.1 (#1, Apr 10 2005, 22:30:36) 
[GCC 3.3.5] on linux2
Type "help", "copyright", "credits" or "license" for more information.

>>> import slackcurrent
>>> p1 = slackcurrent.SlackPack("xyz-1.2.3-i386-1.tgz")
>>> p2 = slackcurrent.SlackPack("xyz-1.2.4-i386-1.tgz")
>>> p1 > p2
>>> p2 > p1
Using the code above, I imported the Slackcurrent objects and methods inside my current program and created two fictional packages to check if the comparison is working. As we can see, the first one is older than the second.
>>> slackcurrent.downloadremotelist()
This download the newest list to our local computer. Is a good idea make this before checking for upgrades. It just download a file with about 500 kb (FILELIST.TXT).
>>> locallist = slackcurrent.getlocallist()
>>> print locallist[10].name,locallist[10].version
alsa-lib 1.0.9
Getting the local package list and returning the object (pay attention here, it's a SlackPack object with name, version blah blah blah) on the 10th. position (just a random choice).
>>> remotelist = slackcurrent.getremotelist()
>>> print remotelist[10].name,remotelist[10].version
xpaint 2.7.0
Getting the remote package list and returning another random package.
>>> upgradelist = slackcurrent.getupgradelist()
>>> print upgradelist[0]
>>> print upgradelist[1]
Getting the list with packages that needs upgrade. Please notice that on this case is not a list of packages objects, but a list with the a) the package URL b) the package signature file URL. To know how many packages need upgrade, you can use
>>> len(upgradelist)/2
And we can use
>>> p = [i for i in upgradelist if i.endswith("tgz")]
>>> p
to get only the packages and
>>> p = [i for i in upgradelist if i.endswith("asc")]
>>> p
to get only the signature files.

Who the hell are you?

People knows me as "TaQ". Here is my email, my website (sorry, Portuguese only there).

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