asp.net scan barcode android Directory Name BUILD SOURCES SPECS RPMS SRPMS in Software

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Directory Name BUILD SOURCES SPECS RPMS SRPMS
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Description The directory where RPM does all its building The directory where you should put your original source archive files and your patches The directory where all spec files should go The directory where RPM puts all binary RPMs when built The directory where all source RPMs are put
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The following example copies the compressed archive for the bookrec software to the SOURCES directory:
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# cp bookrec-1.0.tar.gz /usr/src/redhat/SOURCES
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The topdir: entry in an rpmrc file, like /usr/lib/rpm/rpmrc, specifies the location of the build tree directories. In this file, you can find an entry for topdir:. Currently, the Red Hat system has already set this directory to /usr/src/redhat. You can find the SOURCES, BUILD, RPMS, and SRPMS directories here. You can specify a different directory for these subdirectories by placing the entry for topdir: in the /etc/rpmrc file.
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topdir: /usr/src/redhat
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A sample of the default values set by /usr/lib/rpm/rpmrc is shown here:
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# Default values, often overridden in /etc/rpmrc dbpath: /var/lib/rpm topdir: /usr/src/redhat tmppath: /var/tmp cpiobin: cpio defaultdocdir: /usr/doc
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By default, RPM is designed to work with source code placed in a directory consisting of its name and a release number, separated by a hyphen. For example, a program with the name bookrec and release 1.0 should have its source-code files in a directory called bookrec-1.0. If RPM needs to compile the software, it expects to find the source code in that directory within the BUILD directory, BUILD/bookrec-1.0. The same name and release number also must be specified in the spec file.
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RPM Spec File
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To create a package, first create an rpm spec file for it. The rpm spec file specifies the files to be included, any actions to build the software, and information about the package. The spec file is designed to take the program through several stages, starting with unpacking it from an archive, compiling its source code, and generating the RPM package. In the spec file are segments for the different stages and special RPM macros that perform actions at these stages. These are listed here: File Segment or Macro %description Description A detailed description of the software.
File Segment or Macro %prep %setup %patch %build %install %files
Description The prep stage for archives and patches. The prep macro for unpacking archives.A -n name option resets the name of the build directory. The prep macro for updating patches. The build stage for compiling software. The install stage for installing software. The files stage that lists the files to be included in the package.A f filename option specifies a file that contains a list of files to be included in the package. A file macro that lists configuration files to be placed in the /etc directory. A file macro that lists documentation files to be placed in the /usr/doc directory with the subdirectory of the name-versionrelease. The specification of a directory to be included as being owned by a package. (A directory in a file list refers to all files in it, not only the directory.) A macro to do preinstall scripts. A macro to do preuninstall scripts. A macro to do postinstall scripts. A macro to do postuninstall scripts.
%config file-list %doc file-list
%dir directory-list
%pre %preun %post %postun
A spec file is divided into five basic segments: header, prep, build, install, and files. These segments are separated in the file by empty lines. The header segment contains several lines of information, each preceded by a tag and a semicolon. For example, the following tag is used for a short description of the software:
Summary: bookrec program to manage book records
The name, version, and release tags are used to build the name of the RPM package. The name, version, and release are separated with hyphens. For example, the name bookrec with the version 1.0 and release 2 has the following name:
bookrec-1.0-2
The Group entry is a list of categories for the software and is used by the RPM package management utilities like GnomeRPM and Linuxconf to place the software in the correct category folder. The Source entry is the compressed archive where the software is stored on your system. Description is a detailed description of the software. Following the header are the three stages for creating and installing the software on your system, indicated by the %prep, %build, and %install rpm macros. You can skip any of these stages, say, if the software is already installed. You can also leave any of them out of the spec file or comment them out with a preceding #. The spec file is capable of taking a
compressed archive, unpacking it, compiling the source code files, and then installing the program on your system. Then the installed files can be used to create the RPM package. The %prep macro begins the prep segment of the spec file. The prep segment's task is to generate the software's source code. This usually means unpacking archives, but it may also have to update the software with patches. The tasks themselves can be performed by shell scripts you write. Special macros can also automatically perform these tasks. The %setup macro can decompress and unpack an archive in the SOURCES directory, placing the source code files in the BUILD directory. The %patch macro applies any patches. The %build segment contains the instructions for compiling the software. Usually, this is a simple make command, depending on the complexity of your program. The %install segment contains the instructions for installing the program. You can use simple shell commands to copy the files or, as in the bookspec example that follows, the install command that installs files on systems. This could also be the make install command, if your Makefile has the commands to install your program.
%build make RPM_OPT_FLAGS="$RPM_OPT_FLAGS" %install install -s -m 755 -o 0 -g 0 bookrec /usr/bin/bookrec install -m 644 -o 0 -g 0 bookrec.1 /usr/man/man1
The %files segment contains the list of files you want placed in the RPM package. Following the %files macro, you list the different files, including their full pathnames. The macro %config can be used to list configuration files. Any files listed here are placed in the /etc directory. The %doc macro is used for documentation, such as README files. These are placed in the /usr/doc directory under a subdirectory consisting of the software's name, version, and release number. In the bookspec example shown here, the readme file is placed in the /usr/doc/bookrec-1.0-2 directory: bookspec
Summary: bookrec program to manage book records Name: bookrec Version: 1.0 Release: 2 Copyright: GPL Group: Applications/Database Source: /root/rpmc/bookrec-1.0.tar.gz %description This program manages book records by title, providing price information %prep %setup %build make RPM_OPT_FLAGS="$RPM_OPT_FLAGS" %install install -s -m 755 -o 0 -g 0 bookrec /usr/bin/bookrec install -m 644 -o 0 -g 0 bookrec.1 /usr/man/man1
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