Changelog

All notable changes to the feature-check project will be documented in this file.

The format is based on Keep a Changelog, and this project adheres to Semantic Versioning.

Unreleased

2.1.0 - 2024-02-10

Semi-incompatible changes

• Python implementation:
  • drop support for Python 3.7, 3.8, and 3.9

Additions

• Start some MkDocs documentation and move the changelog file there.
• Python implementation:
  • declare Python 3.12 and (tentatively) 3.13 as supported
  • rename the VersionComponent.__cmp__() method to cmp(); Python 3.x has never had a __cmp__() dunder method, so it is better to expose this one
  • provide a __hash__() method for VersionComponent
• Rust implementation:
  • implement the IntoIterator trait for &Version for easier looping
• Testing framework:
  • Python:
    • add tags to the Tox environments for the tox-stages tool
    • add the "reuse" test environment to check the SPDX tags
    • import the vetox tool for running Tox in a virtual environment and add a Nix shell expression for running it with multiple Python versions

Other changes

• Switch to yearless copyright notices.
• Switch to SPDX copyright and license tags.
• Python implementation:
  • minor improvements and refactoring to make use of Python 3.10's features
  • switch from setuptools to hatchling for the PEP517 build
  • break the installation and test requirements into separate files
  • use Ruff's isort implementation
  • minor improvements and refactoring suggested by Ruff 0.2.1
  • switch from Black to Ruff for source code formatting
• Rust implementation:
  • minor improvements and refactoring suggested by Clippy
  • Clippy: allow blanket restriction lints and the question mark operator
• Testing framework:
  • Python:
    • drop the Python version from the mypy configuration, we have other means of testing with multiple Python versions
    • convert the tox.ini file to the Tox 4.x format
    • drop the "flake8" and "pylint" test environments in favor of the new "ruff" one
    • use mypy 1.x, pytest 8.x, and reuse 2.x with no changes
    • minor improvements to the Nix expressions for running the Python tests
    • run Ruff in preview mode
• fcheck-testdata:
  • use the anyhow and thiserror crates instead of expect-exit and quick-error
  • use the tracing crate instead of config-diag

2.0.0 - 2022-10-12

Incompatible changes

• Rust implementation:
  • the numeric components of version strings are now unsigned (u32), whereas before a signed integer type (i32) was used
  • parse the examined program's features line into Version structs instead of free-form strings
  • use the anyhow and thiserror libraries instead of quick-error and, for the command-line tool, expect-exit; the exported enums and structs representing errors returned by the library functions have been reimplemented
• Python implementation:
  • use frozen dataclasses instead of reimplementing them poorly
  • introduce the .version.VersionComponent and .version.Version classes that provide an easy-to-use interface for parsing and comparing version strings
  • store a BoolOp object directly into the parsed ExprOp instead of referring to the former by a string name stored in the latter

Semi-incompatible changes

• Python implementation:
  • bump the minimum supported Python version to 3.7:
    • use deferred type annotations, allowing us to use the lowercase type names instead of the typing generics
    • use subprocess.run(capture_output=True) instead of Popen
• Rust implementation:
  • use a Termination trait for the main() exit code and specify a minimum Rust version of 1.61

Additions

• Add an EditorConfig definitions file.
• Python implementation:
  • declare Python 3.10 and 3.11 as supported versions
• Rust implementation:
  • add the run-clippy.sh tool to run a lot of diagnostic checks
• Testing framework:
  • add Nix shell expressions for running the test suites for the Perl and Python implementations in a clean ("pure") Nix environment

Other changes

• Rust implementation:
  • refactor a lot according to many suggestions from Clippy
  • bump the version of the expect-exit dependency to 0.5 for the bool.or_exit() implementation
  • use a Nom-based parser for the featurename and featurename op version expressions that may be specified on the command line
  • use a Nom-based parser for the output of the examined program
  • keep the Cargo.lock file under version control
  • use the clap library for command-line arguments parsing
• Python implementation:
  • use black 22 for source code formatting, reformat with 100 characters per line
  • move the configuration of more static checkers to the pyproject.toml file
  • use pytest.mark.parametrize() instead of ddt for simpler tests
  • use a pyparsing-based parser for the featurename and featurename op version expressions that may be specified on the command line
  • use a pyparsing-based parser for the output of the examined program
  • drop a type: ignore comment for a bug fixed in the mypy tool
  • fix the python/3/feature-check.sh wrapper so that it does the right thing if the PYTHONPATH environment variable is already set
• Testing framework:
  • be more permissive when looking for the program's usage message in the incorrect command-line options output
  • skip some of the program usage message tests for the Rust implementation, too, since the clap library can format the text in different ways

1.0.1 - 2021-12-17

Additions

• Python implementation:
  • add tests for comparisons against beta versions of features
  • actually install the py.typed marker file via the declarative setuptools configuration
• Rust implementation:
  • code clean-up:
    • add the html_root_url doc attribute

Other changes

• Use common test definitions for the various implementations, generated and kept in sync via the new fcheck-testdata internal tool.
• Python implementation:
  • code clean-up:
    • add a version to the dependency on the "hacking" Python library in the tox.ini test definitions to help out pip's resolver
    • use f-strings instead of str.format()
    • use black's default line length of 88 characters
• Rust implementation:
  • code clean-up:
    • honor clippy's "needless borrow" suggestions
    • drop an unused internal structure field
    • get the crate version string from the Cargo manifest, one less place to update when bumping the version
    • move the module-level docs after the copyright notices
  • declare compatibility with the Rust 2021 edition with no changes
  • use the quick-error crate instead of writing boilerplate code

1.0.0 - 2021-06-24

Incompatible changes

• Python implementation:
  • drop Python 2.x support

Fixes

• Perl implementation:
  • fix a 2 < 10 version int/string bug
  • fix a 3.0.beta2 < 3.0 version int/string bug

Additions

• Add a Rust implementation.

Other changes

• Python implementation:
  • rework as more idiomatic Python 3.x
  • switch to a declarative setuptools config
  • add a PEP 517 pyproject.toml definition
  • reformat the source code using black
  • push the source into a src/ subdirectory

0.2.2 - 2019-01-09

Fixes

• Fix the Python command-line tool's use of the standard Python JSON module if simplejson is not installed.

Other changes

• Remove two unnecessary "pass" statements since the functions have a doc-string that serves as a null body.

0.2.1 - 2018-11-23

Other changes

• Build universal Python wheels.
• Do not require the Python typing module, only use it when it is available, e.g. during type checking tests.

0.2.0 - 2018-11-22

Additions

• Reorganize the Python implementation:
  • add flake8 and pylint checks
  • add some simple unit tests
  • add type hints

Other changes

• Reorganize the Python implementation:
  • break it into modules

0.1.1 - 2018-05-08

Fixes

• Perl 5.10 does not understand the ellipsis unimplemented statement, so replace it with a die() statement with an internal error message

0.1.0 - 2018-04-22

Started

• first public release