Make SRPM handover between macros even more graceful and reliable by auto-creating
a basic SRPM header before attempting declaration of a different sub-package.
With this change things will just work as long as the default %{source_name}
%{source_summary} and %{source_description} are set by something to sensible values.
%new_package is a wrapper around Name: and %package that abstracts their quirks
from packagers and macros. Its behavior is controled by the %{source_name}
global variable:
– when %{source_name} is not set, the first call to %new_package will create a
Name: block and set %{source_name} to the %{name} of this block.
– when %{source_name} is set:
– a call to %new_package with no arguments creates:
Name: %{source_name}
– otherwise, a call to %new_package creates the corresponding:
%package…
line, unless the resulting %{name} matches %{source_name}. In that case it
creates:
Name: %{source_name}
as before.
Arguments:
– -n and %1 like %package
– -v to print the variables %new_package sets directly.
The intended use-case it to:
– simplify coordination between macros that create subpackages,
– make it easy for packagers to declare which of the macro-created packages
owns the SRPM, and
– make %{source_name} available within spec files and not just as a dnf
synthetic variable.
Unlike %{name} %{source_name} matches the SRPM name regardless of its location
within the spec file.
