[pacman-dev] md5sum check script

[Xavier]

Hello,

I started writing a script last week, but I think I'm pretty bad at
this. IMO, it's ugly, long,
complicated, slow and unsafe. I'm sending it not for usage, but since
I don't see any progress,
I thought maybe you could pick some ideas for writing a better one :)
Now a little description of what it does :
it takes the list of NoUpgrade config in /etc/pacman.conf . If it
doesn't find any, it takes the default list in pacman2.
It then builds the list of packages owning these files, and stores the
result temporary in /tmp/backup/
It then checks if the package are available in the cache
(/var/cache/pacman/pkg), if not, it tries to download them. If it's
still can't download it, it'll just use a fake md5sum (0^32) for the
config files
in this package.
Then, for each package, it'll go look at the md5sum of its config
files in /var/lib/pacman/local , and compare them with the md5sum from
the original package. If they are different, it's wrong, and was most
certainly caused by NoUpgrade.
If this file was indeed in the NoUpgrade array, and additionally the
md5sum stored in the local database is the same than the md5sum of the
config in the filesystem, then everything confirms that it's wrong,
and the script is happy.
Note : there are already 2 places where root is needed, just for
checking : for downloading
the missing packages, and for reading the config files in the
filesystem only readable by root,
like /etc/shadow. I used sudo for these 2 lines.
It would then also be needed for actually correcting the md5sum.
-------------- next part --------------
A non-text attachment was scrubbed...
Name: check_backup_md5.sh
Type: application/x-sh
Size: 3397 bytes
Desc: not available
URL: <http://archlinux.org/pipermail/pacman-dev/attachments/20070419/de27e88e/attachment.sh>