Reproducible RPM build host and build time

[mmikitka]

If you want to control the RPM Build host metadata, use _buildhost in your RPM spec

If you want to control the Build time metadata, the SOURCE_DATE_EPOCH environment variable must be declared within the context of running rpmbuild.

PR is forthcoming with support for SOURCE_DATE_EPOCH

For context, see:

• https://reproducible-builds.org/docs/source-date-epoch/
• https://wiki.yoctoproject.org/wiki/Reproducible_Builds

Related to #105

[aiuto]

Closing. The build time part is done. The rest should be addressed in #53

[wxlg1117]

If you want to control the RPM Build host metadata, use _buildhost in your RPM spec

how to do ? please show me a sample .spec ,thank you very much!