git-buildpackage ftbfs on resolute-proposed due to rust coreutils

[Simon Poirier]

Build-time doctests fail due to divergence between rust/gnu-coreutils on the true/false utilities
due to lacking help flag with rust implementation.

e.g. https://launchpad.net/ubuntu/+source/git-buildpackage/0.9.39/+build/31465864

=================================== FAILURES ===================================
_________________ [doctest] gbp.command_wrappers.Command.call __________________
242 ... extra_env={'LC_ALL': 'C'})
243 >>> c.call(["--version"])
244 0
245 >>> c.stdout.startswith('true')
246 True
247 >>> c = Command("/bin/false", capture_stdout=True,
248 ... extra_env={'LC_ALL': 'C'})
249 >>> c.call(["--help"])
250 1
251 >>> c.stdout.startswith('Usage:')
Expected:
    True
Got:
    False

/<<PKGBUILDDIR>>/gbp/command_wrappers.py:251: DocTestFailure
----------------------------- Captured stdout call -----------------------------
gbp:debug: /bin/true [] ['foo', 'bar']
gbp:debug: /foo/bar [] ['foo', 'bar']
gbp:debug: /bin/true [] ['--version']
gbp:debug: /bin/false [] ['--help']
------------------------------ Captured log call -------------------------------
DEBUG gbp:log.py:140 /bin/true [] ['foo', 'bar']
DEBUG gbp:log.py:140 /foo/bar [] ['foo', 'bar']
DEBUG gbp:log.py:140 /bin/true [] ['--version']
DEBUG gbp:log.py:140 /bin/false [] ['--help']

[Simon Poirier (simpoir)]

Forwarded fix upstream: https://salsa.debian.org/agx/git-buildpackage/-/merge_requests/78

[Launchpad Janitor (janitor)]

This bug was fixed in the package git-buildpackage - 0.9.39ubuntu1

---------------
git-buildpackage (0.9.39ubuntu1) resolute; urgency=medium

  * fix: doctests failure with rust-coreutils (LP: #2137580)
    Replace implicit behavior of gnu coreutils true/false in doctest by
    explicit output and exit code.

 -- Simon Poirier <email address hidden> Tue, 06 Jan 2026 14:46:49 -0500

[Sylvestre Ledru (sylvestre)]

reported upstream here:
https://github.com/uutils/coreutils/issues/10279