Merge lp:~shnatsel/elementaryos/enchanced-kernel-handling-ebuild into lp:elementaryos/0.1-jupiter

[Sergey "Shnatsel" Davidoff]

This branch automates cleanup after kernel upgrades. In Jupiter it's not fully cleaned up and maintaining eBuild when it uses hard-coded kernel version will be time-consuming (read: it's simply a waste of time). It can even remove all the kernels and kernel headers but the latest ones if there are more than two kernel packages installed.

This code is tested on my production machine.

[Sergey "Shnatsel" Davidoff (shnatsel)]

The code was tested in real chroot ISO builds on Natty several times, seems to work fine.

review: Approve

[Eduard Gotwig (gotwig)]

how can it work fine, if elementary-theme and other packages are not even packaged for natty?

[Sergey "Shnatsel" Davidoff (shnatsel)]

I mean the kernel handling part. I tested only the kernel part myself, the whole script was tested by other people from #elementary.

[Sergey "Shnatsel" Davidoff (shnatsel)]

And, for some mysterious reason, they didn't complain about missing theming.

=== modified file 'conf.sh'
--- conf.sh	2011-03-21 22:45:57 +0000
+++ conf.sh	2011-04-07 13:29:29 +0000
@@ -163,8 +163,49 @@
 apt-get update -f -y
 apt-get dist-upgrade -f -y --allow-unauthenticated
 
-# Remove obsolete kernel packages (and only use new one in updates)
-apt-get remove -f -y --purge linux-image-2.6.35-22
+# START BLOCK: Remove obsolete kernel packages (and only use new one in updates)
+
+# Find package name for the oldest kernel image currently installed
+old_linux_image=$(dpkg-query -W 'linux-image-2.*' | rev | cut -b 2- | rev | cut -s -f1 | grep generic | head -n 1)
+
+# The same for headers-generic
+old_linux_headers_generic=$(dpkg-query -W 'linux-headers-2.*' | rev | cut -b 2- | rev | cut -s -f1 | grep generic | head -n 1)
+
+# Determine the name of headers metapackage (without -generic)
+old_linux_headers=$(echo "$old_linux_headers_generic" | cut -d'-' -f1-4)
+
+
+# Find package name for the newest kernel image currently installed
+new_linux_image=$(dpkg-query -W 'linux-image-2.*' | rev | cut -b 2- | rev | cut -s -f1 | grep generic | tail -n 1)
+
+# The same for headers-generic
+new_linux_headers_generic=$(dpkg-query -W 'linux-headers-2.*' | rev | cut -b 2- | rev | cut -s -f1 | grep generic | tail -n 1)
+
+# Determine the name of headers metapackage (without -generic)
+new_linux_headers=$(echo "$new_linux_headers_generic" | cut -d'-' -f1-4)
+
+# Remove all kernel images but the most recent one
+while [ "$old_linux_image" != "$new_linux_image" ]
+do
+apt-get remove -f -y --purge "$old_linux_image"
+
+# Find package name for the oldest kernel image currently installed
+old_linux_image=$(dpkg-query -W 'linux-image-2.*' | rev | cut -b 2- | rev | cut -s -f1 | grep generic | head -n 1)
+done
+
+# Remove all kernel headers but the most recent ones
+while [ "$old_linux_headers" != "$new_linux_headers" ]
+do
+apt-get remove -f -y --purge "$old_linux_headers"
+
+# Find package name for the oldest headers currently installed
+old_linux_headers_generic=$(dpkg-query -W 'linux-headers-2.*' | rev | cut -b 2- | rev | cut -s -f1 | grep generic | head -n 1)
+
+# Determine the name of headers metapackage (without -generic)
+old_linux_headers=$(echo "$old_linux_headers_generic" | cut -d'-' -f1-4)
+done
+
+# END BLOCK: Remove obsolete kernel packages (and only use new one in updates)
 
 # Install apps for elementary deskop --no-install-recommends
 apt-get install -f -y --no-install-recommends --allow-unauthenticated abiword abiword-plugin-grammar bcmwl-kernel-source cups contractor dexter dockmanager docky elementary-theme elementary-icon-theme elementary-wallpapers gdebi gdebi-core gloobus-preview gnumeric indicator-applet-complete indicator-datetime libgl1-mesa-dri-experimental midori nautilus ntp purple postler plymouth-theme-elementary-logo preload telepathy-salut ttf-droid ttf-unifont ttf-dejavu zeitgeist zeitgeist-fts-extension
@@ -235,7 +276,7 @@
 mkdir -p /usr/share/themes/Ambiance/gtk-2.0/apps/img/
 ln -s /usr/share/themes/elementary/gtk-2.0/Panel/panel-dark.png /usr/share/themes/Ambiance/gtk-2.0/apps/img/panel.png
 
-# Kill the destop with fire
+# Kill the desktop with fire
 cp /tmp/user-dirs.defaults /etc/xdg/
 cp /tmp/rm.desktop /etc/skel/.config/autostart/
 cp /tmp/killdesktop.sh /home