Conan 1.19 Documentation

### Conan 1.19 Documentation Summary Conan 1.19 introduces several new features, improvements, and bug fixes. Below is a concise summary of the key updates: #### **New Features** 1. **New qmake Generator**: Added support for qmake, improving workflow for Qt projects. 2. **Pip Installation**: Conan can now be installed via pip: `pip install conan`. 3. **PyInstaller Support**: Enables creation of binaries from Conan Python source code, aiding package creation for distributions. 4. **Hashing Helpers**: Added `md5`, `sha1`, and `sha256` helpers in `tools` for verifying external downloads. 5. **CI Support**: Enhanced integration with Travis CI and AppVeyor for development. 6. **Improved Search**: Supports advanced queries in the search functionality. 7. **Profiles**: Added commands to list or show profile details, and introduced support for custom paths in profiles. 8. **FreeBSD Support**: Preliminary support for FreeBSD. 9. **Package Description**: Added a new description field to document package contents. 10. **Imports Manifest**: Introduced functionality to generate imports manifest and undo imported files. 11. **SSL Verification**: Added optional SSL certificate verification for remotes, supporting self-signed certificates. 12. **User/Channel in Recipes**: Allows declaring requirements for the same user/channel as the current package. 13. **CMake Support**: Added support for modern CMake with `INTERFACE IMPORTED` targets. 14. **Environment Variables**: Enhanced configuration options, including `CONAN_COLOR_DARK`, `CONAN_COMPRESSION_LEVEL`, and `CONAN_CPU_COUNT`. #### **Improvements** 1. **Folder Deletion**: Improved `shutil.rmtree` to handle permission issues, especially on Windows. 2. **Human-Readability**: Enhanced download progress and help messages for better user experience. 3. **Case Sensitivity**: Improved case-sensitive folder management. 4. **Strip Parameter**: Added `strip` parameter to `tools.patch()` utility. 5. **Dependency Management**: Improved handling of duplicate requirements and link order issues. 6. **Build Process**: Added `SIGTERM` signal handler for safe termination. #### **Bug Fixes** 1. **Duplicate Requirements**: Fixed issues with duplicated requirements when using version ranges and `requirements()` method. 2. **libcxx Setting**: Resolved `ConfigureEnvironment` ignoring `libcxx` setting. 3. **Package Corruption**: Fixed issue with `conan install --all` generating corrupted packages. 4. **Windows Line Endings**: Corrected line endings in `conan.conf` for Windows compatibility. 5. **Duplicate Imports**: Fixed crashes with duplicate imported files and symlinks. 6. **Link Order**: Addressed issues with link order in multi-config packages. 7. **C++20 Standard**: Improved handling of C++20 standard with modern compilers. 8. ** SCM Detection**: Fixed auto-detection of Apple Clang and other compilers. #### **Key Enhancements** - **Versioning**: Enhanced support for fixed versions and version ranges, with improvements to dependency resolution. - **Package Management**: Added system libraries to the `cmake_find_package` generator. - **Configuration**: Introduced new environment variables for better control over Conan's behavior, including color output and compression settings. Conan 1.19 provides significant improvements in dependency management, build processes, and cross-platform compatibility, making it a robust tool for C and C++ developers.