flake-update-diff/README.md
2025-03-02 01:00:04 -05:00

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# Flake Update Diff Tool
This is the Nix flake update validator. A tool which is able to evaluate a flake
at two points in history, check that everything evaluates, and provide a diff
of the two. In its target state, it will provide a similar function to
DeterminateSystems' awesome `update-flake-lock` tool, but with `nvd` integration
and other bells and whistles that we've come to like.
## How to Use
Currently, this only supports locally-stored flakes, although we are planning to
add support for `git`-based URLs for usage outside of CI pipelines where the
repository is already downloaded.
``` shell
nix run git+https://nayeonie.com/ahuston-0/flake-update-diff-tool -- <flake path>
```
For use in other nix-based projects, `flpudt` is available as
`packages.${system}.flupdt`. Please see our `examples/` folder for common
use-cases.
## Why the name
`flupdt` comes from Fl(ake) Up(date) D(iff) T(ool). The cli is also available as
`flake-update-diff-tool`, for ease-of-use and those who use screen readers or
similar accessibility tools that may not react well to `flupdt`.