A modern, delicious implementation of the Nix package manager, focused on correctness, usability, and growth — and committed to doing right by its community
https://lix.systems
73696ec716
If you have a URL that needs to be percent-encoded, such as `http://localhost:8181/test/+3d.tar.gz`, and try to lock that in a Nix flake such as the following: { inputs.test = { url = "http://localhost:8181/test/+3d.tar.gz"; flake = false; }; outputs = { test, ... }: { t = builtins.readFile test; }; } running `nix flake metadata` shows that the input URL has been incorrectly double-encoded (despite the flake.lock being correctly encoded only once): [...snip...] Inputs: └───test: http://localhost:8181/test/%252B3d.tar.gz?narHash=sha256-EFUdrtf6Rn0LWIJufrmg8q99aT3jGfLvd1//zaJEufY%3D (Notice the `%252B`? That's just `%2B` but percent-encoded again) With this patch, the double-encoding is gone; running `nix flake metadata` will show the proper URL: [...snip...] Inputs: └───test: http://localhost:8181/test/%2B3d.tar.gz?narHash=sha256-EFUdrtf6Rn0LWIJufrmg8q99aT3jGfLvd1//zaJEufY%3D --- As far as I can tell, this happens because Nix already percent-encodes the URL and stores this as the value of `inputs.asdf.url`. However, when Nix later tries to read this out of the eval state as a string (via `getStrAttr`), it has to run it through `parseURL` again to get the `ParsedURL` structure. Now, this itself isn't a problem -- the true problem arises when using `ParsedURL::to_string` later, which then _re-escapes the path_. It is at this point that what would have been `%2B` (`+`) becomes `%252B` (`%2B`). |
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| .github | ||
| config | ||
| contrib | ||
| doc | ||
| m4 | ||
| maintainers | ||
| misc | ||
| mk | ||
| perl | ||
| scripts | ||
| src | ||
| tests | ||
| .dir-locals.el | ||
| .editorconfig | ||
| .gitignore | ||
| .version | ||
| boehmgc-coroutine-sp-fallback.diff | ||
| bootstrap.sh | ||
| configure.ac | ||
| CONTRIBUTING.md | ||
| COPYING | ||
| default.nix | ||
| docker.nix | ||
| flake.lock | ||
| flake.nix | ||
| local.mk | ||
| Makefile | ||
| Makefile.config.in | ||
| precompiled-headers.h | ||
| README.md | ||
| shell.nix | ||
Nix
Nix is a powerful package manager for Linux and other Unix systems that makes package management reliable and reproducible. Please refer to the Nix manual for more details.
Installation
On Linux and macOS the easiest way to install Nix is to run the following shell command (as a user other than root):
$ curl -L https://nixos.org/nix/install | sh
Information on additional installation methods is available on the Nix download page.
Building And Developing
See our Hacking guide in our manual for instruction on how to to set up a development environment and build Nix from source.
Additional Resources
- Nix manual
- Nix jobsets on hydra.nixos.org
- NixOS Discourse
- Matrix - #nix:nixos.org
- IRC - #nixos on libera.chat
License
Nix is released under the LGPL v2.1.