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Picire Release Notes

21.8

Summary of changes:

  • Dropped support for Python 2.
  • Moved the test outcomes from AbstractDD into the new enum Outcome.
  • Heavily simplified the signature of picire.call and renamed it to picire.reduce.
  • Changed the API of tester classes in general and of SubprocessTest in particular by not mandating them to have a test_pattern initializer argument.
  • Changed the API of several functions and methods, made numerous arguments keyword-only.
  • Renamed the --disable-cleanup CLI argument to -no-cleanup.
  • Improved the CLI argument helper function picire.cli.process_args by moving into it all CLI-related processing steps and by decoupling it from argument parser's error reporting.
  • Added new CLI-related helper function picire.cli.postprocess_args for finalization.
  • Fixed the --atom=both use case.
  • Fixed the default of the split argument of DD algorithms.
  • Various internal refactorings (caching in parallel cases, parallel loops, use of multiprocessing).
  • Improved the testing infrastructure (better output on failure, stabilized tests, testing PyPy).
  • Improved documentation.

21.7

Summary of changes:

  • Changed the API of algorithm classes and made them callable.
  • Renamed LightDD algorithm class to DD.
  • Changed the API of SubprocessTest to accept a sequence for command_pattern instead of a string.
  • Added latin-1 as the default for encoding if it cannot be auto-detected.
  • Made use of the inators package to unify CLI argument handling and logging.
  • Moved to pyproject.toml & setup.cfg-based packaging.
  • Improved logging.
  • Various internal refactorings.
  • Improved the testing infrastructure (testing Python 3.9, fixed Coveralls upload).
  • Improved documentation.

20.12

Summary of changes:

  • Generalized ddmin algorithm to use split factor whenever configuration (test case) needs to be split or re-split.
  • Changed the API of AbstractDD.ddmin by removing the split ratio argument (n).
  • Changed config splitters from functions to classes.
  • Extended API with OutcomeCache.set_test_builder.
  • Changed the behavior of --cleanup CLI option to remove temporary files right after each test case execution (not only after the end of the reduction session).
  • Improved log output.
  • Bumped minimum Python requirement to 3.5.
  • Adapted versioning to use setuptools_scm (included distance from latest release into non-released version strings).
  • Added classification metadata to project.
  • Improved documentation.
  • Improved the testing infrastructure (linting, faster test suite, testing Python 3.8, testing macOS, migrated testing from Travis CI to GitHub Actions).
  • Various internal refactorings and performance improvements.
  • Minor bug fixes.

19.3

Summary of changes:

  • Made code Python 2 compatible.
  • Fixed diagnostic messages.
  • Improved parallelism internals.
  • Improved the testing infrastructure (testing Python 2.7 and 3.7 on Travis CI; maintenance changes to various CI configurations).

18.10

Summary of changes:

  • Changed test configuration IDs from strings to tuples, changed how config IDs encode DD execution information, and extended API to enable prefixing of config IDs (resulting changes both in API and in working directory layout).
  • Better separation of public and subclass APIs.
  • Various internal refactorings.

18.1

Summary of changes:

  • Added support for custom initial granularity.
  • Improved logging (added support for filtering out really high volume logs by introducing a new log level).
  • Improved the testing infrastructure (by using the Coveralls online service).

17.10

Summary of changes:

  • Windows became a first-class citizen: both sequential and parallel ddmin implementations are supported on the platform.

17.6

Summary of changes:

  • Added CLI support for running character-based reduction after line-based reduction.
  • Improved the testing infrastructure (support for Python 3.6 and code coverage measurement).
  • Minor bug fixes and improvements.

17.1

Summary of changes:

  • Changed the working directory of each test subprocess from $CWD to the corresponding test directory.
  • Added support for content-based result caching (in addition to the configuration-based approach).
  • Minor bug fixes and improvements.

16.7

Summary of changes:

  • Added py.test-based testing, and support for tox and Travis CI.
  • API refactoring to allow better code reuse, especially by the Picireny project.
  • Minor bug fixes and improvements.

16.5

First public release of the Picire Parallel Delta Debugging Framework.

Summary of main features:

  • One sequential ("light") and two process-based parallel ("parallel" and "combined parallel") ddmin implementations.
  • "Subset checks first" and "complement checks first" modes.
  • "Forward", "backward", "random" (and "skip") iteration strategies for both subset and complement checks.
  • "Zeller" and "balanced" split modes.
  • Python 3 API and CLI.