https://github.com/juspay/cachix-push
A flake app that can push packages and devshells to cachix
https://github.com/juspay/cachix-push
Last synced: about 1 year ago
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A flake app that can push packages and devshells to cachix
- Host: GitHub
- URL: https://github.com/juspay/cachix-push
- Owner: juspay
- License: apache-2.0
- Created: 2023-03-02T15:12:13.000Z (over 3 years ago)
- Default Branch: main
- Last Pushed: 2024-11-04T23:45:05.000Z (over 1 year ago)
- Last Synced: 2024-11-05T00:25:58.034Z (over 1 year ago)
- Language: Nix
- Size: 24.4 KB
- Stars: 22
- Watchers: 5
- Forks: 2
- Open Issues: 1
-
Metadata Files:
- Readme: README.md
- License: LICENSE
Awesome Lists containing this project
README
# cachix-push
A flake app to **push and pin** multiple store paths [built by Omnix](https://omnix.page/om/ci.html) to cachix. Better than `nix build ... | cachix push ...`.
When you pin paths, they are indexed by `system` and custom `prefix` (usually git branch). In CI, you can do this only from say `main` branch, thus having up-to-date cache for your primary branch and have it pinned.
## Usage
Push and pin all store paths built by [`om ci`](https://omnix.page/om/ci.html). First, run `om ci` to build outputs:
```sh
# First, build the flake.
om ci run --results=om.json
```
This will create a JSON like:
```json
{
"systems": [
"x86_64-linux"
],
"result": {
"omnix": {
"build": {
"byName": {
"treefmt-check": "/nix/store/x14rcm3djs4cr9d2ih0msxw8jiwdm1yn-treefmt-check",
"omnix-cli": "/nix/store/ci6vsd9wpd8h3mrjxf7ny4mk1ncjjprc-omnix-cli-0.1.0",
"omnix-devshell": "/nix/store/n4ri7biinnpwx0d5s68vgni6wjlichn1-omnix-devshell",
"rust-flake-devshell": "/nix/store/wcj64d5yv56bd728737rczxkdjwvfibs-rust-flake-devshell"
}
}
},
}
}
```
(Everything under `byName` represents the store paths of flake output indexed by their derivation name)
Which can you pass to this program to push & pin on cache:
```sh
# Push to https://mycache.cachix.org
nix run github:juspay/cachix-push -- --cache mycache --subflake ROOT --prefix "$(git branch --show-current)" < om.json
```
This will output at the end what got pinned, for example:
```text
[..]
Pinning on https://om.cachix.org
Pin main-x86_64-linux-treefmt-check => /nix/store/x14rcm3djs4cr9d2ih0msxw8jiwdm1yn-treefmt-check
Pin main-x86_64-linux-omnix-cli => /nix/store/ci6vsd9wpd8h3mrjxf7ny4mk1ncjjprc-omnix-cli-0.1.0
Pin main-x86_64-linux-omnix-devshell => /nix/store/n4ri7biinnpwx0d5s68vgni6wjlichn1-omnix-devshell
Pin main-x86_64-linux-rust-flake-devshell => /nix/store/wcj64d5yv56bd728737rczxkdjwvfibs-rust-flake-devshell
```
which gets reflected in the cachix UI as:
## GitHub workflow example
- https://github.com/juspay/omnix/pull/340