conan-center-index
conan
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conan-center-index | conan | |
---|---|---|
41 | 110 | |
887 | 7,723 | |
2.1% | 1.7% | |
10.0 | 9.8 | |
4 days ago | 3 days ago | |
Python | Python | |
MIT License | MIT License |
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
conan-center-index
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The xz attack shell script
Conan is a package manager for C/C++. See: https://conan.io/.
The way it works is that you can provide "recipes", which are Python scripts, that automate the process of collecting source code (usually from a remote Git repository, or a remote source tarball), patching it, making its dependencies and transitive dependencies available, building for specific platform and architecture (via any number of build systems), then packaging up and serving binaries. There's a lot of complexity involved.
Here are the two recipes I mentioned:
libcurl: https://github.com/conan-io/conan-center-index/blob/master/r...
OpenSSL v3: https://github.com/conan-io/conan-center-index/blob/master/r...
Now, for the sake of this thread I want to highlight three things here:
- Conan recipes are usually made by people unaffiliated with the libraries they're packaging;
- The recipes are fully Turing-complete, do a lot of work, have their own bugs - therefore they should really be treated as software comonents themselves, for the purpose of OSS clearing/supply chain verification, except as far as I know, nobody does it;
- The recipes can, and do, patch source code and build scripts. There's supporting infrastruture for this built into Conan, and of course one can also do it by brute-force search and replace. See e.g. ZLib recipe that does it both at the same time:
https://github.com/conan-io/conan-center-index/blob/7b0ac710... -- `_patch_sources` does both direct search-and-replace in source files, and applies the patches from https://github.com/conan-io/conan-center-index/tree/master/r....
Now, good luck keeping track of what's going on there.
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Looking for projects to contribute to
https://github.com/conan-io/conan-center-index there's 200+ PR that need reviewing :) we add community reviewers fairly often
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Conan package manager completely broken after 2.0 release
As for ffmpeg it was last updated 10 days ago https://github.com/conan-io/conan-center-index/commits/master/recipes/ffmpeg/all :)
Indeed others in your situation have chosen to remain a bit longer on Conan 1.x - rest assured, every single pull request in Conan Center still requires full compatibility with Conan 1.x. u/miss_minutes, I'm surprised to hear that downgrading to the latest stable 1.x version has caused issues for you. I'd be very interested in learning about this so that we can help, please feel free to open an issue in GitHub with more details at https://github.com/conan-io/conan-center-index/issues/new/choose, and tag me @jcar87, and we'll gladly look into this.
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PcapPlusPlus in Conan 2.0
https://github.com/conan-io/conan-center-index if you want to contribute migration of that recipes that would be amazing
This is a more complicated recipe https://github.com/conan-io/conan-center-index/blob/master/recipes/pcapplusplus/all/conanfile.py
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Compiling CrowCPP on Windows and about to kms
It's available in Conan too https://github.com/conan-io/conan-center-index/tree/master/recipes/crowcpp-crow though it's not well maintained so no promises if it's working
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Conan 2.0, the new version of the open-source C and C++ package manager
This post on github contains a list of packages supported by conan 2.0, its also kept up to date https://github.com/conan-io/conan-center-index/discussions/16196
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C++ Is Incredible
2) Go to https://conan.io/center/ and search for nlohmann, click the first hit.
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What would you change about C++? How would you improve it, and what do you hate about it?
I hope CMake and conan continue to be adopted by more CPP developers. But the future will tell.
conan
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The xz attack shell script
Conan is a package manager for C/C++. See: https://conan.io/.
The way it works is that you can provide "recipes", which are Python scripts, that automate the process of collecting source code (usually from a remote Git repository, or a remote source tarball), patching it, making its dependencies and transitive dependencies available, building for specific platform and architecture (via any number of build systems), then packaging up and serving binaries. There's a lot of complexity involved.
Here are the two recipes I mentioned:
libcurl: https://github.com/conan-io/conan-center-index/blob/master/r...
OpenSSL v3: https://github.com/conan-io/conan-center-index/blob/master/r...
Now, for the sake of this thread I want to highlight three things here:
- Conan recipes are usually made by people unaffiliated with the libraries they're packaging;
- The recipes are fully Turing-complete, do a lot of work, have their own bugs - therefore they should really be treated as software comonents themselves, for the purpose of OSS clearing/supply chain verification, except as far as I know, nobody does it;
- The recipes can, and do, patch source code and build scripts. There's supporting infrastruture for this built into Conan, and of course one can also do it by brute-force search and replace. See e.g. ZLib recipe that does it both at the same time:
https://github.com/conan-io/conan-center-index/blob/7b0ac710... -- `_patch_sources` does both direct search-and-replace in source files, and applies the patches from https://github.com/conan-io/conan-center-index/tree/master/r....
Now, good luck keeping track of what's going on there.
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My first Software Release using GitHub Release
There were various approaches recommended depending on our language and ecosystem. My classmates who developed using Node.js were recommended npm, and PyPI or poetry for Python. Since my program is written in C++, I was recommended to look into one of vcpkg or conan, but I ultimately did not use either package manager.
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Anyone else frustrated with Conan2?
Hi u/instinkt900, Conan maintainer here. Thanks for your feedback! Please remember that we actively monitor and respond to our issue tracker on GitHub (https://github.com/conan-io/conan/issues/new/choose), we’d love to hear about your specific use cases or pain points, so that we can improve your experience and that of other users. The motivation behind most of the updates in Conan 2.0 was precisely feedback from the community, and to improve our ability to continue delivering features in the constantly changing C++ ecosystem. We can certainly do this at a quicker pace, with some exciting new features recently released and in the pipeline: package metadata, transparent backup of downloaded package sources, cache least-recently-used cleanup, etc. A lot of the big decisions that we took for Conan 2.0 were taken with consensus from expert users and contributors (https://conan.io/tribe) and https://github.com/conan-io/tribe. Some specific workflows may not have 1:1 replacements in Conan 2.0, and are likely to affect some of the “less travelled roads” of Conan 1.x, including some features that were always marked as experimental. We are happy to hear feedback so that we can best satisfy these use cases. Conan 2.0 also includes a more sophisticated API to cover cases where the built-in integrations may not satisfy users needs. For what it’s worth - we have also heard very positive feedback from users about how Conan 2.0 simplifies their workflows when compared to Conan 1.x. The C++ tooling ecosystem is fragmented and moves at different speeds, including our users. So it’s always a fine balancing act, but we don’t want to leave anyone behind! An example is Conan Center - over 90% (~1200) of all recipes have been migrated to support Conan 2.0, while still maintaining compatibility with Conan 1.x, precisely to avoid breaking users that are still on Conan 1.x.
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Writing a Package Manager
The closest thing we have at the moment is conan[1]. It’s a cross platform package manager that attempts to implement “toolchains”, whereby different build systems can be integrated[2]. This is a big problem with package management in C/C++, there’s no single, standardised build system that most projects use. There isn’t even a standardised compiler! So when hosting your own packages using Conan, often you need to make sure you build your application for three different compilers, for three different platforms. Sometimes (for modern MacOS) also for two different architectures each.
If you control the compiler AND build system you can get away with just one package for most cases. This true for Microsoft’s C/C++ package manager, NuGet[3]
Historically, the convention has been to use the package manager of the underlying system to install packages, as there are so many different build configurations to worry about when packaging the libraries. The other advantage of using the system package manager is that dependencies (shared libraries) that are common can be shared between many applications, saving space.
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Good gui libraries for simple note taking app with sqlite database?
I do however always recommend using a package manager: vcpkg or Conan to install and integrate third party libraries (together with CMake). This normally solves all the typical problems with dependencies.
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chex: the homrgrown chess engine in C++
There's a few, look into Conan or vcpkg (the latter is my personal recommendation).
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Is there a way to build a project from source with the same process between Windows and OSX?
You could check Conan and Vcpkg, they can be used to provide your dependencies for all three major platform (but I think only as pre-build binaries). Or you could embed the installers of your dependencies in your own.
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Questions about how cmake is used
There are "package managers" for C++ which can download / build / install the packages you want to use in your project, you only need to give a list of the package names to it. If you want something like that you should check out Conan and vcpkg.
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Recourses to help understand libraries/projects and setting them up?
Luckily, it's 2023, and not 2003 anymore and there are better ways: package managers. Package managers like Conan and vcpkg use ready made recipes for downloading and building a lot of open-source software libraries, and they are made to work out of the box and also build dependencies and dependencies of dependencies. They keep track of all the dependencies a project needs and ensure that they all work together. CMake works really well with these package managers, so stick to that - it is the future.
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Basic CMake question regarding subdirectories
Or the absolute Gold standard in 2023: use a package manager: Conan or vcpkg.
What are some alternatives?
Vcpkg - C++ Library Manager for Windows, Linux, and MacOS
meson - The Meson Build System
Ncurses - ncurses Git mirror
Boost.Program_options - Boost.org program_options module
xmake - 🔥 A cross-platform build utility based on Lua
jarro2783/cxxopts - Lightweight C++ command line option parser
gflags - The gflags package contains a C++ library that implements commandline flags processing. It includes built-in support for standard types such as string and the ability to define flags in the source file in which they are used. Online documentation available at:
compiledb - Tool for generating Clang's JSON Compilation Database files for make-based build systems.
Argh! - Argh! A minimalist argument handler.
libpq - build2 package for PostgreSQL C client library
VulkanExamples - Examples and demos for the Vulkan C++ API