Idea is that one can clone the repo with your files, run something like make and he will get the ready runme1. The spec files used by pkgbuild are similar to rpms spec files, but there are. Users can use standard package management tools for example yum or packagekit to install, reinstall, remove, upgrade and verify your rpm packages. You will need either p0 or p1 specifying how many levels to strip off the path names, depending on how you built the patch file compared to how the tar file is contructed. This causes the patch process to be interrupted after the kernel. When you build a package, rpm creates a list of the shared libraries that it includes and a list of the shared libraries to which it is linked. Fedora 18 changes the way how to work with services in spec files. This section describes the various macros used by rpm. Rpm also includes a set of useful macros that you can use to help debug problematic spec files and well as perform common tasks in spec files. They usually should be used instead of hardcoded directories.
Specifically, an rpm package consists of the cpio archive, which contains the files, and the rpm header, which contains metadata about the package. This option is useful in a second or later %patch macro that required a. Building and managing rpm packages on ibm aix is similar to linux distributions but with some changes. Shorthand for package builders describes %setup and %patch macros. If there was one thing that you should know about creating a rpm its how to write the spec file. The first part of the spec should contains macros definitions, as illustrated below. As we saw in the previous chapter, the spec file contains eight different sections, most of which are required. Userdefined macros follow the % macro name syntax, whereas system macros are written without the curly braces, for example %define. The macros section provides a detailed overview of the available macros. But on rhelcentos5 i need to add one additional dependen. The spec file is present inside the source directory. In the above example, fileutils has a patch for 64 bit machines. In particular, it is not possible to add a test timeout multiplier such as is sometimes needed when building for slow architectures such as armv7hl.
Lets go through each section and create cdplayers spec file as we go. Rpmspecfile perl extension for creating rpm specfiles. The rpm packager applies the patch when the rpm is built. The patch tags identify any patches used to modify the sources. Macros may also be automatically included from usrlibrpmmacros. The %ifarch macro is very important to all of this. The spec file is split into several sections, which will be examined individually. In source packages, you have the pristine sources along with any patches that. The prep or prepare section precedes the build section and defines the commands necessary. Rpmtoolboxspec parse rpm specs with macro expansion. When we build a git snapshot kernel, the gitrev macro contains the value of the git snapshot patch to apply. This spec is for python app, so there is no differences in build process. Rpm, %config, and noreplace jon warbrick university of cambridge computing service rpm spec files have a macro, %config, that is used to mark config files so that edits to config files wont get lost during a subsequent upgrade. Creating noarch rpm with minimal spec file suppose you have some files that should be packaged and distributed as a small noarch rpm, but you do not want to depend on.
If youre interested in what the scripts in your rpm look like after macro expansion, you can just build the rpm and then get rpm to extract the scripts. Macros definition the first part of the spec should contain macros definitions, as illustrated below. Spec you can also do a manual build by uploading a src. Reference for rpm spec macros %setup, %buildroot, etc server. This section describes the basic structure of an rpm spec file and how that applies to rpm specfile. The way we direct rpm in the build process is to create a spec file. Rpm s workhorse to verificationtime script %build the %build script %clean the %clean. First use the yumdownloader command to get the rpm package of interest. Parameterized macros include an options field, and perform argcargv processing on white space separated tokens to the next newline. Im trying to write a single rpm spec for rhelcentossl 5 and 6. Rpm spec files are divided into the following sections. In its simplest form, the macro is used with no options and gets the name of the source archive from the source tag specified earlier in the spec file. See chapter 9, working with spec files for details.
Different linux distributions provide open source software in rpm format. The following describes how to derive a patch for a modification you need to make to the source code of a program, and apply that patch during the rpm building process. In source packages, you have the pristine sources along with any patches that were used, plus complete. With rpm, you have the pristine sources along with patches that we used to. Jun 15, 2017 rpm is a very popular packaging method for installing and managing software. The first part of the spec should contain macros definitions, as illustrated below. Building rpm packages with rpmbuild, koji, and gitlabci. It does not attempt to give a full description of rpm spec file syntax. The following table lists macros which are widely used in fedora. Avoid percent signs, %, in comments, which may get interpreted as rpm macros. There are various topics in the world of rpm spec files that are. Most of the predefined rpm macros hold directory paths or architecture information. Automate rpm builds from git sources using copr hobo. In order to write spec files, it is important to understand rpm s dependency checking, macros and directory structure.
The %source and %patch macros can be used to refer to the full. Rpm packaging guide red hat enterprise linux 7 red hat. Rpm provides a rich set of macros to make package maintenance simpler and consistent across packages. This module extracts various bits of information from rpm spec files. Without this, the config files from an upgrade would tend to overrite the edited files from the previous version. Directives used in the %files list to direct rpm to handle certain files in a.
Here is a complete, working rpm spec file with several things. Now that im actually trying to build debuginfo packages, im no longer happy with that solution, however. Its a macro that unpacks the sources the %setup macro is used to unpack the original sources, in preparation for the build. The following describes how to derive a patch for a modification you need to. Macros a method of executing multiple commands easily. This article describes how to build an open source software rpm package on aix. A spec file is basically a set of instructions on how to build the rpm package. Some tips on rpm conditional macros posted by waldner on 17 september 2011, 3.
In rpm terms, building the package is split into four steps. Table 105 lists these debugging and special spec file macros. Neither do i want to globally enable debuginfo, i think, as it just gets in the way for general rebuilds of freeware src. Use a database of installed packages to query and verify packages. Some rpm macros may need workarounds to work in copr.
The rpm spec file provides numerous system and userdefined macros. Add two lines to the spec file for each patch file. I mean, %setup, %buildroot and the like, which are not in usrlib rpm. Because rpm maintains a database of installed packages and their files, users can easily query and verify packages on their system. Rpm is a package management system for unixlike operating systems. What this means is that we can have rpm perform text substitutions for us so that we dont have to. I will explain the layout of the specfile in detail. Like the %setup macro, the %patch directive applies a patch to the sources. How to patch and rebuild an rpm package brad the mad. Spec filespecific macros most of the predefined rpm macros hold directory paths or architecture information. One handy utility of the rpm command for packagers is the eval flag which allows you to ask rpm to evaluate a macro. The spec file should contain all the commands needed to build the application or library you want to.
Contribute to systemdsystemd development by creating an account on github. The following sections summarize the spec file syntax. Select the scm to use with %autosetup, if one is not set in the spec file. One to indicate that there is a new patch file and another in the %setup section to apply the patch. Most times you will need to make a patch or two that is specific to one architecture only. Here is an example %patch definition from usrlibrpmmacros.
The specfile build section looks like %build cd pathsources make if the spec file path can be detected then the hardcoding of the pathsources can be avoided. You now have the basics at your fingertips to create your own rpm. Inside the spec file in this chapter, were going to cover the spec file in detail. An rpm package is simply a file containing other files and information about them needed by the system. The second, at the end of the %prep area, tells how to use it with the patch command. There are a number of different types of entries that comprise a spec file, and every one will be documented here. The %patch macro, which is used to apply patches to the original sources. Which man page describes the usage of the toplevel rpm spec file macros that are defined in rpm source files directly. The rpm system defines a lot of handy macros so that your spec files can work regardless of where system directories are located. Helpful shorthand for to compressed patch files % patch the % patch macro % patch, options to the p option to the % patch e option %setup the %setup macro %setup, options to the n option to the a option scripts in scripts. Place the patch file into the usrsrc rpm sources directory and edit the header of your. If you see a macro in a spec file that youre not familiar with, you can quickly evaluate the expression.
However, there are two parts of rpms build process that are fairly constant from one package to another, and they are the unpacking and patching of sources. Bug 850355 introduce new systemd rpm macros in utillinux spec file. Building open source rpm packages on ibm aix ibm developer. The specs directory is where the specfile included with an srpm will be placed. Looking up the %setup options in a tutorial at rpm. The new %autosetup macro allows taking care of all this in a single step. Like the patch tag, it has a numbered suffix and you can pass it paramters you would pass to the patch command.
This macro is an easy way to specify a number of files as. Red hat enterprise linux 7 rpm packaging guide basic and advanced rpm packaging last updated. Third, modify or create a spec file describing how to start with the original archive and one or more patch files and build either a binary rpm package file that can be installed, or a source rpm package file containing the original code plus your modifications and the spec file, or both source and binary rpm files. For example, it includes a list of default path definitions which are used by the build system macros, and definitions for rpm package build specific directories. Also, macro definitions are generally put at the top of the preamble. D, define macro expr defines macro with value expr. During macro expansion, both flags and arguments are available as macros which are deleted at the end of macro expansion. Rpm does not support macros in the sense of adhoc sequences of commands being defined as a macro and executed by simply referring to the macro name. Just listing the patch file in the header will only cause rpmbuild to ensure the file exists it wont actually apply the patch, but luckily there is a handy % patch macro. The spec file is a description of the software along with instructions on how to build it and. Nov 01, 2000 place the patch file into the usrsrc rpm sources directory and edit the header of your. The fedora project hosts the best documentation on rpm out there in html format. To display the current set, add %dump to the beginning of any spec file, process with rpm, and examine the output from stderr. The source and patch tags identify the source files used to build the binary package.
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