Free IT: Article / Create rpm-packages

	Create rpm-packages
	A short rpm-package howto
	DrHook Wednesday 29 September 2004
Usally you rpm topdir are located under /usr/src/redhat if you are using the Redhat distribution. If you are building you own rpm:s its possible that you want to change this toplevel rpm structure. That you can do by creating a .rpmmacros file in /root that overides the default settings. This is an example on how it can look. %_topdir /home/rpmbuild %_signature gpg %_gpg_path /home/rpmbuild/.gnupg %_gpg_name andutt@superman %_gpgbin /usr/bin/gpg %packager Andutt http://andutt %distribution AnduttLinux %vendor Andutt homestudio Now we can start to build some rpm-packages, Create RPMS, SRPMS, SPEC, BUILD, SOURCES directorys under /home/rpmbuild that now are our rpm creation topdirectory. Now here is a short explanation on what thoose directorys shall include. RPMS=New created rpm-packages SRPMS=New created rpm-sourcepackages SPECS=rpm specifikation files BUILD=Unpacked source directorys SOURCES=Source tar-bundles that shall be rpm-packages Now to be able to create a rpm-package you have to bundle your files in a compressed tarball and put this under the SOURCES directory. That is the files that shall be included in the binary rpm-package. Now you have to crete a specification that the rpmbuild command can understand. This is how an empty spec file can look like. cat /home/rpmbuild/SPEC/mysoftware-1.0-1.spec # The Summary: line should be expanded to about here -----^ Name: anduttsoft Version: 1.0 Release: 4 Group: System Environment/Base License: GPL Source: anduttsoft-%{version}-%{release}-bin.tar.gz #NoSource: 0 BuildRoot: /home/rpmbuild/BUILD/%{name}-root # Following are optional fields #URL: http://www.example.net/anduttsoft/ #Distribution: Red Hat Contrib-Net #Patch: anduttsoft-%{version}.patch #Prefix: /. BuildArch: noarch #Requires: Conflicts: anduttsoft < 1.0-4 #Obsoletes: #BuildRequires: %description anduttsoft Software version 1.0 %prep %setup -c 'anduttsoft-%{version}' #%patch %install %__cp -a . "${RPM_BUILD_ROOT-/}" %clean [ "$RPM_BUILD_ROOT" != "/" ] && chmod -R 777 "$RPM_BUILD_ROOT" && rm -rf "$RPM_BUILD_ROOT" %pre echo "Checking if all anduttsoft needs are installed" if [ ! -f /tmp/anduttsoft.needed ] then echo "ERROR needed file dont exist" exit 1 fi %post echo "Registering anduttsoft in runlevel 3 and 5" chkconfig --add anduttsoft chkconfig --level 35 anduttsoft on %files %defattr(-,root,root) %dir /./ %dir /./opt/ %dir /./opt/scripts/ %dir /./opt/scripts/anduttsoft/ %defattr(0755,root,root) /opt/scripts/anduttsoft/anduttdiscover %dir /./opt/scripts/anduttsoft/etc/ %config /./opt/anduttsoft/etc/help %changelog * Mon Jul 07 2004 root - Initial created by andutt As you can see the rpm-package is very powerful since you can perform tasks before and after the rpm-package have been installed and that it also keeps track of your version and releases, if it should conflict with another package or if its dependent of another package. If you are deticated you can create a completely automatic procedure for something that can be really tricky to do by hand for other users. But creating theese specfiles by hand can take some time. But we are lucky! A guy called Gabiell V have craeted av very good tool for making creation of spec files more easy. You can download Autospec here Then its really easy, Do like this, bundle your files to a nice tarball. Mine is called anduttsoft-1.14-4-bin.tar.gz and are placed correctly under the SOURCES tree. Use the autospec program to create a rpm specification file. tar -tzf SOURCES/anduttsoft-1.14-4-bin.tar.gz \| autospec -bd -g "System Environment/Base" -n anduttsoft-1.14 -l '' >SPECS/anduttsoft-1.14-4.spec Thats it, autospec have created a spec file based on you input, now just fill in your pre and post stages if they shall preform any tasks. When the specfile is finished its time to build it, that you do with the rpmbuild command, like this rpmbuild -bb /home/rpmbuild/SPEC/mysoftware-1.0-1.spec You rpm package is now beeing buildt after your rpmspecification. Good luck rpm:ing

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