cross-platform unix software packagingce ! n

8/14/2019 Cross-Platform Unix Software Packagingce ! n

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Part I: Overview

A brief overview of OpenPKGfrom a users point of view

A distributed system is one onwhich I cannot get any work done,because a machine I have neverheard of has crashed.

Leslie Lamport

A supercomputer isa machine, that runs anendless loop in just 2 seconds.

Unknown


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The General Problem

Different flavors ofUnix OperatingSystems in use.

Very(!) differentsets of vendor

supplied add-onapplications:Number of total

applicationsProgram versions of

applications Installation PathsAmount of pre-

configuration

kernel

base

Solaris

kernel

base

FreeBSD

kernel

base

Linux

??? ??? ???

Ad

d-

on

App

lica

tio

ns

user

There's a lesson to be learned from thisbut I'll be damned if I know what it is.

Al Bundy


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The OpenPKG SolutionDifferent flavors of

Unix OperatingSystems in use.

Vendor suppliedadd-on applicationsare ignored.

All actually usedadd-on applicationsare provided cross-platform by OpenPKG.

Engineers now only

have to manage 1single virtualplatform.

kernel

base

Solaris

kernel

base

FreeBSD

kernel

base

Linux

OpenPKG

Ad

d-

on

App

lica

tio

ns

user

The software said it requires Solaris 2.6or better, so I installed OpenPKG...


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OpenPKG is...

a cross-platformpackaging facility foradd-on Unixsoftware.

based on an

extended version ofthe popular RedHatPackage Manager(RPM v4).

a self-contained

packaging systemwhich is maximumindependent ofunderlying OS.

currently available for: Sun Solaris Debian GNU/Linux RedHat Linux FreeBSD OpenBSD NetBSD

Compaq Tru64 (partially) HP-UX (partially)

very complete, i.e., itcurrently providesalready over 190

packaged applications.OpenPKG is freelyavailable to anyone asOpen Source.Software is like sex;it's better when it's free.

Linus Torvalds


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Package Lifecycle

Writing packagespecificationBuilding application

from vendor sourcesTemporarily installing

applicationRolling package from

installed applicationfiles

Deinstallingapplication

Place package intorepository

Fetching packagefrom repository Installing package Fetching newer

version of package

from repositoryUpgrading packageDeinstalling

package

Developer Part

User Part

My hack:This universe.

Just one little problem: core keeps dumping.


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OpenPKG Live$ lynx http://www.openpkg.org/pkg/openpkg-0.9-36.src.sh

$ sh ./openpkg-0.9-36.src.sh --prefix=/cw -user=cw -group=cw[...]# sh ./openpkg-0.9-36.ix86-freebsd4.4.sh[...]$ /cw/bin/rpm -rebuild http://www.openpkg.org/pkg/bash-2.05-3.src.rpm[...]# /cw/bin/rpm Uvh /cw/RPM/PKG/bash-2.05-3.ix86-freebsd4.4.rpmbash ##################################################

$ /cw/bin/rpm qi bashName: bash Source RPM: bash-2.05-3.src.rpmVersion: 2.05 Packager: [email protected]: 0 Build Host: dev1.de.cw.netGroup: Shell Build System: ix86-freebsd4.4

Distrib: OpenPKG Build Time: Tue May 1 18:06:25 2001License: GPL Relocations: /cw

Vendor: Free Software Foundation Install Size: 1065082 bytesURL: http://www.gnu.org/ Install Time: Tue May 1 18:06:35 2001Summary: Bourne-Again ShellDescription:

Bash (Bourne-Again Shell) is an sh-compatible command language interpreterthat executes commands read from the standard input or from a file. Bashalso incorporates useful features from the Korn and C shells (ksh and csh).Bash is intended to be a conformant implementation of the IEEE POSIX Shelland Tools specification (IEEE Working Group 1003.2).

$ /cw/bin/bash

Seek simplicity,but distrust it. A. N. Whitehead


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Why to use OpenPKG? Package is reasonable

wrapper aroundapplications:unattended and repeatable

building and installationprocedure

packager knowledge built-

in (configure options,additional patches, etc.)

package abstractsdifferences betweenapplications

Both source and binary

packages supported.

Sophisticated packagemanagement: flexible queries on

package informationverification of package

integrity

Single and uniformfacility for all platforms: cross-platform same filesystem paths reasonable default

configurations safe upgrading path complete deinstallation


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Part II: Close-Up View

A close-up view of OpenPKGfrom a developers point of view

There are two types of peoplein this world, good and bad.

The good sleep better, but thebad seem to enjoy the wakinghours much more.

Woody Allen

Hiroshima '45Czernobyl '86Windows '95

:


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Package Lifecycle(Developer Part)

Writing the packagespecificationmeta-informationpackage source files

package dependenciesdescription textbuild instructions

Fetching source files Preparationunpacking fixing permissionsapplying patches

Building configuration compilation

Installation

redirection totemporary root

performing installationadding extra files

Packagingdetermining file list rolling binary RPM rolling source RPM

Recursive, adj.;see Recursive.


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Package Lifecycle(User Part)

(Starting fromscratch) with sourceRPM:Fetching source RPM

Installation of sourcesDev.-Step: PreparationDev.-Step: BuildingDev.-Step: InstallationDev.-Step: Packaging

Deinstallation ofsources ...

(Continuing)with binary RPM:Fetching binary RPM Installation of binary

Upgrading of binaryDeinstallation of binary

If a trainstation is where trainsstop, what is a workstation?

Patient: Doctor, it hurts when I do this!Doctor: Well, then don't do it.


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Package Components Package Specification

(RPM .spec-file) central packaging

information

Vendor source(s)

distribution filesoptionally patches

Extra filespackager or third-party

patches run-command scriptsdefault configuration

file(s) ...

-rw-rw-r-- 1 rse openpkg 504 Apr 10 11:32 bash-2.05.patch.1-rw-rw-r-- 1 rse openpkg 1033 Apr 10 11:32 bash-2.05.patch.2-rw-rw-r-- 1 rse openpkg 1792319 Apr 10 11:23 bash-2.05.tar.gz-rw-rw-r-- 1 rse openpkg 3770 Apr 10 11:33bash.spec-rw-rw-r-- 1 rse openpkg 1342 Feb 7 16:34 profile

UNIX is simple.It just takes a genius tounderstand its simplicity.

Dennis Ritchie


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Name: bash

Summary: Bourne-Again ShellGroup: Shell

URL: http://www.gnu.org/Vendor: Free Software Foundation

Packager: [email protected]: OpenPKGLicense: GPLVersion: 2.05Release: 0

Source0: ftp://ftp.gnu.org/gnu/bash/bash-%{version}.tar.gzSource1: profilePatch0: bash-%{version}.patch.1Patch1: bash-%{version}.patch.2

Prefix: %{l_prefix}BuildRoot: %{l_buildroot}BuildPreReq: OpenPKGPreReq: OpenPKG

%descriptionBash (Bourne-Again Shell) is an sh-compatible command language interpreterthat executes commands read from the standard input or from a file. Bash

also incorporates useful features from the Korn and C shells (ksh and csh).Bash is intended to be a conformant implementation of the IEEE POSIX Shell

and Tools specification (IEEE Working Group 1003.2).

Package SpecificationExample (1)

Meta informations

List of sources

Dependencies

Description

What you seeis all you get. Brian Kernighan

P k S ifi i


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Package SpecificationExample (2)%prep

%setup -q%patch0 -p0%patch1 -p0

%buildCC="%{l_cc}" \CFLAGS="%{l_cflags -O}" \./configure \

--prefix=%{l_prefix}%{l_make} %{l_mflags -O}

%installrm -rf $RPM_BUILD_ROOT%{l_make} %{l_mflags} installprefix=$RPM_BUILD_ROOT%{l_prefix}rm -f $RPM_BUILD_ROOT%{l_prefix}/info/dirstrip $RPM_BUILD_ROOT%{l_prefix}/bin/bash

%{l_shtool} mkdir -f -p -m 755 $RPM_BUILD_ROOT%{l_prefix}/etc/bash%{l_shtool} install -c -m 644 -e "s;@l_prefix@;%{l_prefix};g" \

$RPM_SOURCE_DIR/profile $RPM_BUILD_ROOT%{l_prefix}/etc/bash/

%{l_rpmtool} files -v -ofiles -r$RPM_BUILD_ROOT \%{l_files_std} \'%config %{l_prefix}/etc/bash/profile'

%files -f files

%cleanrm -rf $RPM_BUILD_ROOT

Preparation

Building

Installation

Packaging

Beware of bugs inthe above code;I have only proved itcorrect, not tried it.

D.E. Knuth


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Package Building

Murphy's Law is recursive:Washing your car to makeit rain doesn't work.


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More about OpenPKGThe Website:

http://www.openpkg.org/

The FTP Server:ftp://ftp.openpkg.org/

The RSYNC Server:rsync://rsync.openpkg.org/

The Anonymous-CVS Server::pserver:[email protected]:/cvs

The Support Mailing List:[email protected] I have made this longer than usualbecause I lack the time to make it

shorter. Blaise Pascal

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