libgit2
elfshaker
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libgit2 | elfshaker | |
---|---|---|
30 | 12 | |
9,414 | 2,289 | |
0.7% | 0.3% | |
9.6 | 7.9 | |
7 days ago | 3 months ago | |
C | Rust | |
GNU General Public License v3.0 or later | Apache License 2.0 |
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.
libgit2
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Radicle: Open-Source, Peer-to-Peer, GitHub Alternative
Everything that is replicated on the network is stored as a Git object, using the libgit2[0] library. This library uses hardened SHA-1 internally, which is called sha1dc (for "detect collision").
[0]: https://github.com/libgit2/libgit2/blob/ac0f2245510f6c75db1b...
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Speedbump – a TCP proxy to simulate variable network latency
This is delightful and I can't wait to try it out. Right now, the libgit2 project (https://github.com/libgit2/libgit2) has a custom HTTP git server wrapper that will throttle the responses down to a very slow rate. It's fun watching a `git clone` running over 2400 baud modem speeds, but it's actually been incredibly helpful for testing timeouts, odd buffering problems, and other things that crop up in weird network environments.
I'd love to jettison our hacky custom code and use something off-the-shelf instead.
- Things I just don't like about Git
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Mold 2.0.0
I'm curious about the license change? This is an executable is it not? Invoking it as a separate process does not require you make the software calling it GPL so switching to MIT should have no affect in the common case.
If the authors really wanted a more permissive license, then instead of relicensing from AGPL to MIT they should have gone AGPL with linking exception. An example of a project that does this is libgit2 [1]. This licensing is more permissive but still permits the author to sell commercial licenses to those making closed-source code changes.
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I'm feeling lazy today but want a better excuse than "working on documention" for the morning standup.
Using libxlsxwriter and libgit, it's straightforward -- just putting the equivalent of git shortlog and lines added and removed into a line of cells.
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In-depth look: the Java try-with-resources statement
Sometime ago I started writing a JNI wrapper around libgit2.
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Ask HN: Would more apps build with Git back-end if there’d be a solid SDK?
Have you seen [libgit2](https://libgit2.org/) and the csharp libgit2sharp? Both seem to be reasonable albeit low level interfaces to a repo.
My opinion is that you’ll still desire some other data store for indexing and searching as your application grows.
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[Media] gitnu: git status enumerated
Though, as I was looking for possible improvements I stumbled upon https://libgit2.org and its rust bindings. That looks really exciting but it’s probably going to take too much time out of work.
- Ask HN: Is there a good tutorial on how to create a GitHub clone?
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cl-git: a Common Lisp CFFI interface to the libgit2 library
Might be a cool project to update the bindings and get Common Lisp on the language bindings page https://github.com/libgit2/libgit2/issues/4907
elfshaker
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FOSS News International #4: November 22-28, 2021
elfshaker v0.9.0
- elfshaker: a low-footprint, high-performance version control system fine-tuned for binaries
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Elfshaker: GiB – 100 MiB, with 1s access time
Author here. No architecture specific processing currently. Most of the magic happens in zstandard (hat tip to this amazing project).
Please see our new applicability section which explains the result in a bit more detail:
https://github.com/elfshaker/elfshaker/blob/1bedd4eacd3ddd83...
In manyclangs (which uses elfshaker for storage) we arrange that the object code has stable addresses when you do insertions/deletions, which means you don't need such a filter. But today I learned about such filters, so thanks for sharing your question!
One of the authors here, thanks for the feedback. We've tried to improve it here: https://github.com/elfshaker/elfshaker/pull/59
Same here. There is a usage guide, which helped a tiny bit: https://github.com/elfshaker/elfshaker/blob/main/docs/users/...
Honestly, I sort of looked at it for conventional backup strategy...as in, i wonder if it could work as a replacement for tar-zipping up a directory, etc. But, not sure if the use cases is appropriate.
We've just added an applicability section, which explains a bit more what we do. We don't have any ELF specific heuristics.
https://github.com/elfshaker/elfshaker#applicability
In summary, for manyclangs, we compile with -ffunction-sections and -fdata-sections, and store the resulting object files. These are fairly robust to insertions and deletions, since the addresses are section relative, so the damage of any addresses changing is contained within the sections. A somewhat surprising thing is that this works well enough when building many revisions of clang/llvm -- as you go from commit to commit, many commits have bit identical object files, even though the build system often wants to rebuild them because some input has changed.
elfshaker packs use a heuristic of sorting all unique objects by size, before concatenating them and storing them with zstandard. This gives us an amortized cost-per-commit of something like 40kiB after compression with zstandard.
What are some alternatives?
pygit2 - Python bindings for libgit2
git-branchless - High-velocity, monorepo-scale workflow for Git
horde - Horde is a distributed Supervisor and Registry backed by DeltaCrdt
git-date - Bindings onto the date parsing code from Git
pygooglenews - If Google News had a Python library
git2-rs - libgit2 bindings for Rust
immer - Postmodern immutable and persistent data structures for C++ — value semantics at scale
libevent - Event notification library
GLFW - A multi-platform library for OpenGL, OpenGL ES, Vulkan, window and input
dwarfs - A fast high compression read-only file system for Linux, Windows and macOS
manyclangs - Repository hosting unofficial binary pack files for many commits of LLVM
git - A fork of Git containing Microsoft-specific patches.