Use flake-schemas

[shivaraj-bh]

This PR enforces nix flake show to use nix compiled from https://github.com/DeterminateSystems/nix-src/tree/flake-schemas by default (see NixOS/nix#8892). This allows defining a custom schema of the user's choice, with the default set to https://github.com/DeterminateSystems/flake-schemas.

TODO:

• Wrap om with nix-flake-schemas script Allow overriding the nix with flake-schemas via NIX_FLAKE_SCHEMAS_BIN env
• Use flake-schemas in omnix-gui
• parse type of flake output from flake-schemas
• nix_rs ChangeLog

resolves #161

[shivaraj-bh]

cargo run -p omnix-cli -- show github:srid/nixos-config:

📦 Packages

Run: nix build github:srid/nixos-config#<name>
──────────┬───────────────────────────────────────────────────────
 name     │ description
══════════┼═══════════════════════════════════════════════════════
 activate │ Activate NixOS/nix-darwin/home-manager configurations
 default  │ Activate NixOS/nix-darwin/home-manager configurations
 update   │ N/A
──────────┴───────────────────────────────────────────────────────

🐚 Devshells

Run: nix develop github:srid/nixos-config#<name>
─────────┬─────────────
 name    │ description
═════════┼═════════════
 default │ N/A
─────────┴─────────────

🔍 Checks

Run: nix flake check
─────────┬─────────────
 name    │ description
═════════┼═════════════
 treefmt │ N/A
─────────┴─────────────

🐧 NixOS Configurations

Run: nixos-rebuild switch --flake github:srid/nixos-config#<name>
───────────┬─────────────
 name      │ description
═══════════┼═════════════
 immediacy │ N/A
───────────┴─────────────

🍏 Darwin Configurations

Run: darwin-rebuild switch --flake github:srid/nixos-config#<name>
────────────┬─────────────
 name       │ description
════════════┼═════════════
 appreciate │ N/A
────────────┴─────────────

[srid]

Very useful change. I should make nixci use this as well somehow, rather than wait for srid/devour-flake#8

[shivaraj-bh]

Very useful change. I should make nixci use this as well somehow, rather than wait for srid/devour-flake#8

Weren't we planning on importing nixci to omnix, just like nix-health?

[srid]

Very useful change. I should make nixci use this as well somehow, rather than wait for srid/devour-flake#8

Weren't we planning on importing nixci to omnix, just like nix-health?

Yes, further PRs to nixci will be in this repo.

[shivaraj-bh]

You can now nix run the app, it comes wrapped with nix-flake-schemas:

nix run github:juspay/omnix/flake-schemas show github:srid/nixos-config

[shivaraj-bh]

The GUI also supports NixOS, darwin configurations and NixOS modules. I have to still parse the type of derivation correctly, that’s why you see “?” now — added it to TODO.

[srid]

The mainProgram thing is broken on main. Let me fix it; it's regression from juspay/rust-flake@363f20b

EDIT: done, b3cfad3

[shivaraj-bh]

nix (with flake-schemas) static binary builds and works as expected on Linux. While making a release, we can keep both nix and om static binary in the same directory, along with a script that points NIX_FLAKE_SCHEMAS_BIN env to the nix in the same directory and runs om. This directory can then be zipped and released.

Doesn’t look very pleasant, but that seems like the only way.

cc: @srid

[shivaraj-bh]

Also, for static binary to work, we have to change the compile time ENVs to runtime. Which means DEVOUR_FLAKE source must also be zipped along with the static binary.

[srid]

As long as nix run continues to work, let's delegate static binary concerns to another PR.

[shivaraj-bh]

Here’s how the CLI and GUI outputs looks so far:

CLI

📦 Packages (nix build github:srid/nixos-config#<name>)
╭──────────┬───────────────────────────────────────────────────────╮
│ name     │ description                                           │
├──────────┼───────────────────────────────────────────────────────┤
│ activate │ Activate NixOS/nix-darwin/home-manager configurations │
│ default  │ Activate NixOS/nix-darwin/home-manager configurations │
│ update   │ N/A                                                   │
╰──────────┴───────────────────────────────────────────────────────╯

🐚 Devshells (nix develop github:srid/nixos-config#<name>)
╭─────────┬─────────────╮
│ name    │ description │
├─────────┼─────────────┤
│ default │ N/A         │
╰─────────┴─────────────╯

🔍 Checks (nix flake check)
╭─────────┬─────────────╮
│ name    │ description │
├─────────┼─────────────┤
│ treefmt │ N/A         │
╰─────────┴─────────────╯

🐧 NixOS Configurations (nixos-rebuild switch --flake github:srid/nixos-config#<name>)
╭───────────┬─────────────╮
│ name      │ description │
├───────────┼─────────────┤
│ immediacy │ N/A         │
╰───────────┴─────────────╯

🍏 Darwin Configurations (darwin-rebuild switch --flake github:srid/nixos-config#<name>)
╭────────────┬─────────────╮
│ name       │ description │
├────────────┼─────────────┤
│ appreciate │ N/A         │
╰────────────┴─────────────╯

🔧 NixOS Modules ()
╭──────────────┬─────────────╮
│ name         │ description │
├──────────────┼─────────────┤
│ common       │ N/A         │
│ default      │ N/A         │
│ home-manager │ N/A         │
│ my-home      │ N/A         │
│ nixosFlake   │ N/A         │
╰──────────────┴─────────────╯

GUI

[shivaraj-bh]

Apart from the traditional outputs, you also see Darwin Configurations and NixOS Modules

[shivaraj-bh]

• Updated the description to reflect the changes done in this PR

[srid]

@shivaraj-bh LGTM, great. Did a final review.

[shivaraj-bh]

I have addressed all the comments. How does this look?

[srid]

Great!