Specfile

This section is informative.

The OS redpesk is based on RPM Package Manager. In order to build a RPM package, you need to write a specfile. You can find further information about how to write a spec file here:

• What is a spec file
• Write your first spec file
• Spec file format

Specfile development

A spec file is composed of several sections:

• Name: RPM package name
• Summary: A short description of the package
• Version: The package version
• Release: This number has to be incremented every time the package is recreated
• License: The package license, it is necessary to fill in the gaps
• URL: Project URL
• Source0 … SourceN: Tarball defining the project sources location
• BuildRequires: Required dependencies for building
• Requires: Required dependencies for the package at run time

The Documentation section

• %description: longer description of the package
• %changelog: describes changes to apply when release is incremented

Metadata section

• %files: contains files of rpm

Build section

• %prep: describes how to extract tarball defined in SOURCE0…SOURCEN
• %build: this is where packages are compiled. In many cases, there is a macro %configure before a make in this section
• %install: creates the final tarball as it will be in the RPM. Created files have to be in the %{buildroot}

Install section

The %install section is where we instruct rpmbuild how to install our previously built software into the BUILDROOT.