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%; whizzy document
% latex beamer presentation.
% Copyright (C) 2007 Junichi Uekawa
% This program is free software; you can redistribute it and/or modify
% it under the terms of the GNU General Public License as published by
% the Free Software Foundation; either version 2 of the License, or
% (at your option) any later version.
% This program is distributed in the hope that it will be useful,
% but WITHOUT ANY WARRANTY; without even the implied warranty of
% MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
% GNU General Public License for more details.
% You should have received a copy of the GNU General Public License
% along with this program; if not, write to the Free Software
% Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
\documentclass[dvipdfm,12pt,times]{beamer}
% preview (shell-command (concat "xpdf " (replace-regexp-in-string "tex$" "pdf"(buffer-file-name)) "&"))
% presentation (shell-command (concat "xpdf -fullscreen " (replace-regexp-in-string "tex$" "pdf"(buffer-file-name)) "&"))
% presentation-evince (shell-command (concat "evince " (replace-regexp-in-string "tex$" "pdf"(buffer-file-name)) "&"))
\newcommand{\emtext}[1]{
\begin{frame}{}
{\Huge #1
}
\end{frame}
}
\title{what's happening with pbuilder?}
\subtitle{Debian Conference 2007}
\author{dancer@debian.org}
\date{June 2007}
\logo{\includegraphics[width=8cm]{openlogo-light.eps}}
\begin{document}
\frame{\titlepage{}}
\begin{frame}{Who am I?}
\begin{itemize}
\item Junichi Uekawa, dancer@debian.org
\item Lives in Japan, Debian JP Project Leader for 2007
\item Debian Developer since 2000
\item Interests: Audio-processing related tools, and
Debian quality maintenance related tools,
Japanese localization, shared library packaging,
and more recently, Debian/MacBook related.
\end{itemize}
\end{frame}
\emtext{pbuilder, what is the concept?}
\emtext{What is a chroot?}
\begin{frame}{concept of a chroot}
\includegraphics[width=1\hsize]{chroot.eps}\\
\texttt{\# chroot /var/cache/pbuilder/build/XXX bin/bash}
\end{frame}
\begin{frame}{concept of pbuilder}
\includegraphics[width=1\hsize]{chroot-pbuilder.eps}\\
\texttt{\# pbuilder --create, pbuilder --update, pbuilder --build}
\end{frame}
\emtext{How do I use pbuilder?}
\begin{frame}{pbuilder basics}
\includegraphics[height=0.7\vsize]{pbuildercycle.eps}
\end{frame}
\begin{frame}{pbuilder basics ...}
\begin{tabular}{|l|p{9em}|p{10em}|}
\hline
\hline
operation & frequence & meaning \\
\hline
\hline
create & once initially & create base filesystem \\
\hline
update & twice a day (according to unstable updates) &
revise base filesystem \\
\hline
build & for each package build & build Debian package inside chroot \\
\hline
\end{tabular}
\end{frame}
\begin{frame}[containsverbatim]{pbuilder --create}
\begin{verbatim}
# pbuilder --create
Distribution is sid.
Building the build environment
-> running debootstrap
/usr/sbin/debootstrap
I: Retrieving Release
I: Retrieving Packages
I: Validating Packages
.
.
\end{verbatim}
\end{frame}
\begin{frame}[containsverbatim]{pbuilder --update}
\begin{verbatim}
# pbuilder --update
W: /home/dancer/.pbuilderrc does not exist
Building the build Environment
-> extracting base tarball [/var/cache/pbuilder/base.tgz]
.
.
\end{verbatim}
\end{frame}
\begin{frame}[containsverbatim]{pbuilder --build}
\begin{verbatim}
# pbuilder --build dsh_*.dsc
I: using fakeroot in build.
Current time: Sat Jan 20 12:03:34 JST 2007
pbuilder-time-stamp: 1169262214
Building the build Environment
-> extracting base tarball [/home/dancer/DEBIAN/pbuilder/pbuilder/testsuite/tmp.FeeAX18779/testimage]
-> creating local configuration
.
.
\end{verbatim}
\end{frame}
\begin{frame}[containsverbatim]{pbuilder --login}
\begin{verbatim}
# pbuilder --login --bindmount ${HOME}
I: using fakeroot in build.
Current time: Sat Jan 20 12:03:34 JST 2007
pbuilder-time-stamp: 1169262214
Building the build Environment
-> extracting base tarball [/home/dancer/DEBIAN/pbuilder/pbuilder/testsuite/tmp.FeeAX18779/testimage]
-> creating local configuration
.
.
\end{verbatim}
\end{frame}
\emtext{pdebuild}
\begin{frame}[containsverbatim]{pdebuild}
\begin{verbatim}
$ ls debian/rules
debian/rules
$ pdebuild
W: /home/dancer/.pbuilderrc does not exist
dpkg-buildpackage: source package is cowdancer
dpkg-buildpackage: source version is 0.26
dpkg-buildpackage: source changed by Junichi Uekawa <dancer@debian.org>
dpkg-buildpackage: source version without epoch 0.26
fakeroot debian/rules clean
dh_testdir
dh_testroot
rm -f build-stamp configure-stamp
/usr/bin/make clean
make[1]: Entering directory `/home/dancer/DEBIAN/cowdancer/cowdancer'
rm -f *~ *.o *.lo libcowdancer.so cow-shell cowbuilder
make[1]: Leaving directory `/home/dancer/DEBIAN/cowdancer/cowdancer'
dh_clean
dpkg-source -b cowdancer
dpkg-source: warning: source directory `./cowdancer' is not <sourcepackage>-<upstreamversion> `cowdancer-0.26'
dpkg-source: building cowdancer in cowdancer_0.26.tar.gz
.
.
.
\end{verbatim}
\end{frame}
\begin{frame}{}
\begin{minipage}{0.4\hsize}
How do you maintain your package today?
\end{minipage}
\begin{minipage}{0.5\hsize}
\includegraphics[height=0.95\vsize]{develcycle.eps}
\end{minipage}
\end{frame}
\begin{frame}{pbuilder backend variations}
\begin{minipage}{0.5\hsize}
Motivation
\begin{itemize}
\item limitation in chroot segregation (process space, filesystem)
\item COW filesystem optimization
\end{itemize}
\end{minipage}\begin{minipage}{0.4\hsize}
\begin{itemize}
\item LVM
\item UML
\item cowdancer
\item qemu
\end{itemize}
\end{minipage}
\end{frame}
\begin{frame}{uml}
different method of segregation
COW block device support
\end{frame}
\begin{frame}{cowdancer}
speed up through implementation
\end{frame}
\begin{frame}{qemu}
Try running other architectures at your fingertips?
\end{frame}
\begin{frame}{further ideas}
\begin{itemize}
\item install testing
\item package testing
\end{itemize}
\end{frame}
\begin{frame}{related tools}
\begin{itemize}
\item schroot
\item piuparts
\item autopkgtest
\end{itemize}
\end{frame}
\begin{frame}[containsverbatim]{References}
\begin{itemize}
\item Information:\\
\url{http://pbuilder.alioth.debian.org/}
\item Development:\\
alioth project: \url{http://alioth.debian.org/projects/pbuilder}
\begin{verbatim}
git-clone
ssh://git.debian.org/git/pbuilder/pbuilder.git
\end{verbatim}
\end{itemize}
\end{frame}
\end{document}
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