niv
Nokogiri
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niv | Nokogiri | |
---|---|---|
16 | 20 | |
1,456 | 6,105 | |
- | 0.1% | |
6.3 | 9.4 | |
about 2 months ago | 1 day ago | |
Haskell | C | |
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.
niv
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NixOS + Haskell best practices circa March 2023
niv
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Pulling themes from a git project: the nix way?
Flakes work. An alternative is niv which was once popular and provides a good developer experience.
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What are the biggest Pain Points with NIX? And what makes it worth the pain?
Essentially you can just think of it as a standardized default.nix/shell.nix with built-in Niv integration.
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Our Roadmap for Nix
I agree that the FP part is not the only issue. It's that the community feels a bit more academic/I'll fix this for myself in the way that works best for me.
You can indeed achieve some reproducibility with Docker. It's tricky though, as you'd have to pin exact package versions of software. If you'd `FROM ubuntu:$VERION`, and would run an `apt-get update`, you're not guaranteed to get the same software.
Nix is like ZFS, as that it breaks the wall between two previously distinct area's. Those being building software, and installing/configuration software on your OS. It's quite different from the snapshot-everything methodology that Docker uses. Yeah, one can split in multi-stage images etc, but than you'll be keeping track of which dependencies need to be moved between the stages yourself, in a manner that cannot be abstracted away, so you're doomed to repeat the same patterns over and over again.
People also state that LVM + ext3 is more than sufficient compared to the complexity of ZFS. They miss out on the fact on how much more fine grained solutions are possible with ZFS.
I've used niv [0] before flakes arrived, and am actually still using that instead of flakes. The experimental nature of them has scared me away from them, as I'm not daily involved in this ecosystem at the moment.
[0] https://github.com/nmattia/niv#niv
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Simplest way to set up neovim
You can use something like Niv to manage additional sources. I use it to fetch some Emacs packages, for example ligature.el. Then you update the package using $ niv update.
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Unstable vs Stable channels
One thing that made this easier was switching from using Nix channels to explicitly pinning my dependencies with Niv. I honestly never fully understood how channels worked, and it's just much nicer to have everything specified in my Git repo. The exact commit of Nixpkgs that I'm using is in my sources.json file, so "reverting" just means checking out an older commit of my configs from Git then running nixos-rebuild switch. If I were redoing my dotfiles today I'd probably use Nix Flakes rather than Niv, but I suspect that Niv is still an easier option to get started with.
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Remove unused niv packages
Does someone know of a way to remove unused pinned packages via [niv](https://github.com/nmattia/niv)?
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How to downgrade single package?
Pin nixpkgs, and version control it. If you're using flakes, then just version control the flake.lock alongside your configuration. If you're not using flakes, you can use niv to easily pin nipxkgs, at the expense of some boiler plate.
- Compiling emacs is killing me
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Ditch Your Version Manager
This... This is laughable. How do I install ruby 2.6.8? Oh, there's no ruby_2_6_8, because of course there isn't. And this could be difference between a secure system and all your base are belong to us.
And they call this reproducible builds?
And that's before getting into the ridiculous
--- start quote ---
All the software that we installed depends on the specific version of the nixpkgs channel that we installed on our system [whose only version is a commit hash in a git repo]
--- end quote ---
So you need an extra tool [2] for, quote, "painless dependencies for Nix projects."
Yes, sure. I'm definitely ditching my version managers in favor of this tool, that hasn't solved these issues in 18 years of its existence.
[1] https://search.nixos.org/packages?channel=21.05&from=0&size=...
[2] https://github.com/nmattia/niv
Nokogiri
- Web Scraping in Python – The Complete Guide
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Did you know Nokogiri now has opt-in HTML5 parsing?
release planning: v1.16.0 · Issue #2897 · sparklemotion/nokogiri
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As a Go developer, I’m surprised Crystal isn’t more popular
What's holding me back from going all in with Crystal is I have a lot of pre-existing Ruby code, and porting Ruby code to Crystal can be tricky. For example, Crystal lacks an Enumerator class (aka generators) due to captured block semantics. I also wish the shards ecosystem was a little more mature; for example there's multiple HTML parsing libraries, but none have all of the features that Ruby's Nokogiri has. For new greenfield backend projects, I would totally use Crystal.
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Two months into learning Ruby, it is the most beautiful language I ever learned
Welcome! Ruby isn't exactly "dying", but the hype/popularity is definitely fading. This is primarily because Ruby is no longer "new", most of Ruby's popularity came from Rails, and now Rails is no longer the "new hotness". However, Ruby still has lots of awesome features and lots of awesome other libraries and frameworks, such as the new fancy irb gem that uses reline, nokogiri, chunky_png, the async gems, Dragon Ruby, SciRuby, Ronin, and the new Hanami web framework.
- What should I be learning?
- Comparable maintained Kimurai alternative?
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In "Your Name" (2016), Mitsuha and Tesshi are seen turning a tree into their makeshift café, which is why one of the trees in the town is later missing
great for hacking at xml
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Ditch Your Version Manager
Mike has worked hard over the years to have Nokogiri come with its dependencies. It does come with libxml and all that is required.
From https://nokogiri.org
> These dependencies are met by default by Nokogiri's packaged versions of the libxml2 and libxslt source code, but a configuration option --use-system-libraries is provided to allow specification of alternative library locations.
Some authors work hard to have their tools do the right thing and consistently.
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Web scraping with rails
If the page is rendered as html you can use Nokogiri. It has great support and is pretty easy to get started with too.
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Nokogiri 1.12 supports HTML5 parsing (after assimilating Nokogumbo)
And even now, pulling in a Java-based HTML5 parser is still probably easier than re-implementing in FFI, which is why I created https://github.com/sparklemotion/nokogiri/issues/2227 and would love to have this the conversation there if possible.
What are some alternatives?
leksah - Haskell IDE
Oga - Oga is an XML/HTML parser written in Ruby.
update-nix-fetchgit - A program to automatically update fetchgit values in Nix expressions
Ox - Ruby Optimized XML Parser
ghcid - Very low feature GHCi based IDE
HTML::Pipeline - HTML processing filters and utilities
elm-make
Oj - Optimized JSON
hpc-threshold - Small utility for validating whether HPC result is above defined thresholds
ROXML - ROXML is a module for binding Ruby classes to XML. It supports custom mapping and bidirectional marshalling between Ruby and XML using annotation-style class methods, via Nokogiri or LibXML.
ihaskell - A Haskell kernel for the Jupyter project.
HappyMapper - Object to XML mapping library, using Nokogiri (Fork from John Nunemaker's Happymapper)