Conan 1.39 Documentation

• 语言: 英语
• 格式: .pdf
• 来源: docs.conan.io

摘要

文档介绍了Conan 1.39版本的更新内容，包括新功能、改进和错误修复。主要内容有：支持Python 3，不再保证Python 2兼容性；新增pip安装方式；改进了依赖管理功能，如支持更多编译器和操作系统；修复了多个已知问题，提升了安装和删除文件夹的稳定性；新增了CI支持；改进了下载进度和帮助信息的可读性。

AI总结

### Conan 1.39 Documentation Summary

#### **Key Updates and Features**

1. **New Features**:
- **QMake Generator**: Added a new qmake generator (contributed by @dragly).
- **Pip Installation**: Conan can now be installed via `pip install conan`.
- **PyInstaller Support**: Released PyInstaller code for creating binaries from Conan Python source, aiding package creation for distributions.
- **Hash Helpers**: Added `md5`, `sha1`, and `sha256` helpers in `tools` for verifying external downloads.
- **CI Support**: Added support for Travis CI and AppVeyor for Conan development.
- **Improved Download Progress**: Enhanced readability of download progress and help messages.

2. **Bug Fixes**:
- Fixed issues with folder deletion using `shutil.rmtree`, improving reliability, especially on Windows.
- Resolved bugs related to duplicate requirements, corrupted package generation, and Windows-specific issues (e.g., case-sensitive folder management).
- Fixed issues with CMake targets, dependency resolution, and package ID calculation.

3. **Compatibility and Deprecations**:
- **Python 2 Deprecation**: Conan no longer supports Python 2, as it was officially deprecated by Python maintainers.
- **Deprecated Features**: Several older tools and methods (e.g., `tools.msvc_build_command`, `tools.build_sln_command`) have been deprecated.
- **V2 Mode Changes**: Introduced `CONAN_V2_MODE` for improved compiler detection and stricter enforcement of certain settings (e.g., `cppstd`).

4. **Package Creation and Management**:
- Added support for modern CMake and improved dependency queries.
- Enhanced profile management with new commands (`profile list`, `profile show`).
- Added support for FreeBSD and new fields (`user` and `channel`) in Conan recipes.

5. **Community and Resources**:
- Conan is widely used by companies like Audi, Mercedes-Benz, and Continental.
- The community contributes actively to ConanCenter and maintains an extensive library of packages.
- A community-created extended cheatsheet provides a workflow-centric guide for daily operations.

6. **Other Improvements**:
- Added support for custom paths in profiles and optional SSL certificate verification for remotes.
- Improved error handling for duplicate imports and symlinks.
- Added system libraries to the `cmake_find_package` generator and a SIGTERM signal handler for safe termination.

#### **Important Notes**
- **Backward Compatibility**: New features and APIs may make packages and recipes created with older versions of Conan incompatible.
- **Python 3 Requirement**: Conan now requires Python 3 to run, as Python 2 support has been officially deprecated.
- **V2 Mode Feedback**: Users are encouraged to provide feedback on `CONAN_V2_MODE` to shape the future of Conan.

#### **Documentation Resources**
- **Cheat Sheet**: Available in PDF and PNG formats for quick reference.
- **Extended Cheatsheet**: A community-created guide covering setup, configuration, package management, and more.

This version of Conan introduces significant improvements in functionality, compatibility, and usability, making it a robust tool for dependency management in C/C++ and other languages.