A basic task for invoking the rpm executable to build a RedHat Package Manager
Linux installation file. The task currently only works on Linux or other Unix platforms
with rpm support.
| Attribute | Description | Required | 
|---|---|---|
| specFile | The name of the spec file to be used. This must be relative to the SPECS directory under the root of the RPM set in the topDir attribute. | Yes | 
| topDir | This is the directory which will have the expected
      subdirectories, SPECS, SOURCES, BUILD, SRPMS.
      If this isn't specified, the default RPM directory of the system (or user,
      if ~/.rpmmacros defines it) is used (often /usr/src/rpm. Defining a topdir will set %_topdirto the specified
      directory—there is no need to edit your .rpmmacros file. | No, but your build file is very brittle if it is not set. | 
| cleanBuildDir | This will remove the generated files in the BUILD directory. See the the --clean option of rpmbuild. | No | 
| removeSpec | This will remove the spec file from SPECS. See the the --rmspec option of rpmbuild. | No | 
| removeSource | Flag to remove the sources after the build. See the --rmsource option of rpmbuild. | No; default is false | 
| rpmBuildCommand | The executable to use for building the RPM. Set this if default executables are not on PATHor a different executable is needed.  Since Apache Ant 1.6. | No; defaults to rpmbuild if it can be found or rpm otherwise | 
| command | The command to pass to the rpmbuildprogram. | No; default is -bb | 
| quiet | Suppress output. | No; defaults to false | 
| output/error | Where standard output and error go. | No | 
| failOnError | Stop the build process if the RPM build command exits with a non-zero return code. | No; defaults to false | 
<rpm specFile="example.spec"
     topDir="build/rpm"
     cleanBuildDir="true"
     failOnError="true"/>