Native Windows support

[mekwall]

This pull request introduces support for native Windows, including updates to workflows, build configurations, and source code adjustments. Additionally, it includes minor refactoring to improve code readability and consistency.

Native Windows Compatibility Enhancements:

• Added a new clippy-windows job to .github/workflows/checks.yml for running Clippy checks on Windows environments.
• Introduced a new workflow file, .github/workflows/windows-tests.yml, to run Windows-specific tests, build processes, and Clippy checks. This includes setting up dependencies like CMake and Visual Studio Build Tools.
• Updated CMakeLists.txt to handle Windows-specific dependencies and configurations, such as using Rpcrt4 for UUID handling and setting appropriate libraries like bcrypt and crypt32. [1] [2]
• Modified src/Context.cpp to include Windows-specific implementations for environment variables, terminal width/height detection, and color support. [1] [2] [3] [4] [5] [6] [7]
• Added conditional compilation in various files (e.g., src/Hooks.cpp, src/commands/CmdEdit.cpp) to exclude Unix-specific headers and replace them with Windows equivalents where necessary. [1] [2]
• Replaced logical operators (and, or, not) with standard equivalents (&&, ||, !) as they aren't recognized by MSVC when using Windows headers. [1] [2] [3] [4] [5] [6]
• Undefining the max macro in multiple files to prevent conflicts with std::max. [1] [2] [3] [4]

[Copilot]

Pull Request Overview

This PR adds comprehensive Windows support by updating CI workflows, build configurations, and source code to use conditional compilation and Windows APIs.

• Introduced Windows-specific GitHub Actions workflows and a new clippy-windows job.
• Enhanced CMake and build.rs to link against Windows runtimes and libraries.
• Wrapped POSIX-only calls in #ifdef _WIN32, added Windows implementations for UUIDs, console sizing, and environment lookups.

Reviewed Changes

Copilot reviewed 22 out of 22 changed files in this pull request and generated 3 comments.

Show a summary per file

File	Description
src/util.h	Added #ifdef _WIN32 around UUID includes
src/util.cpp	Windows uuid() implementation and header guards
src/taskchampion-cpp/build.rs	Windows MSVC runtime flags in Debug profile
src/taskchampion-cpp/CMakeLists.txt	Formatting fix for corrosion_import_crate
src/recur.h	Conditional includes for windows.h and <io.h>
src/recur.cpp	Added <algorithm> and #undef max on Windows
src/main.cpp	Wrapped signal(SIGPIPE) and run() call in guards
src/commands/CmdPurge.cpp	Replaced and with &&
src/commands/CmdImport.cpp	Replaced not/and with !/&&
src/commands/CmdEdit.cpp	Swapped <unistd.h> for <direct.h> on Windows
src/commands/CmdContext.cpp	Replaced or with `
src/commands/CmdBurndown.cpp	Added #undef max guard
src/Task.cpp	Multiple #undef max injections
src/Lexer.cpp	Replaced and with &&
src/Hooks.cpp	Guarded POSIX includes under #ifndef _WIN32
src/DOM.cpp	Replaced and with &&
src/Context.cpp	Windows console size, color detection, home dir
cmake/CXXSniffer.cmake	Extended C++17 check to include WIN32
CMakeLists.txt	Windows crypto libs, UUID handling, and Rpcrt4
.github/workflows/windows-tests.yml	New Windows build/test workflow
.github/workflows/checks.yml	Added clippy-windows job

Comments suppressed due to low confidence (2)

.github/workflows/windows-tests.yml:49

• [nitpick] On Windows runners, use backslashes or PowerShell syntax (.\build\Debug\task.exe) to avoid path resolution issues in PowerShell/CMD.

          ./build/Debug/task.exe --version

.github/workflows/checks.yml:59

• [nitpick] This workflow uses the master ref for the Rust toolchain action, whereas others pin to stable or a version. Consider unifying to a specific version for reproducibility.

      - uses: dtolnay/rust-toolchain@master