Cannot parse %shrink

[xsuchy]

What happened? What is the problem?

Package python-graph-tool has this lines in a spec file:

License:        %{shrink:
                LGPL-3.0-or-later AND
                BSL-1.0 AND
                BSD-3-Clause AND
                GPL-3.0-or-later AND
                MIT AND
                (MIT OR Apache-2.0)
                }

Then I try to print the license tag using https://pagure.io/copr/license-validate/blob/main/f/print-spec-license.py

I get:

$ ./print-spec-license.py rpm-specs/python-graph-tool.spec
%{shrink:
LGPL-3.0-or-later AND BSL-1.0

What did you expect to happen?

No response

Example URL(s)

No response

Steps to reproduce

1.
2.
3.

Workaround

• There is an existing workaround that can be used until this issue is fixed.

Participation

• I am willing to submit a pull request for this issue. (Packit team is happy to help!)

[gotmax23]

The code to parse tags apparently uses a regex that assumes tags are one line and doesn't account for multi-line macros. Your script should probably use the expanded_value property instead of value. License tags can have macros and other expansions that should be evaluated. In this case, it would loudly fail because of the parser issue, but otherwise, it would do the right thing.

[gotmax23]

For what it's worth:

$ wget "https://src.fedoraproject.org/lookaside/rpm-specs-latest.tar.xz"
$ tar xf rpm-specs-latest.tar.xz
$ rg 'License:.*%\{shrink' -l rpm-specs | wc -l
19