133 lines
3.2 KiB
Markdown
133 lines
3.2 KiB
Markdown
# AGENTS.md
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## Build Commands
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### Local Development
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```bash
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nix run .#build # Build current host config
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nix run .#build -- <hostname> # Build specific host (chidi, jason, michael, mindy, tahani)
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nix run .#apply # Build and apply locally (darwin-rebuild/nixos-rebuild switch)
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nix flake check # Validate flake
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```
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### Remote Deployment (NixOS only)
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```bash
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colmena build # Build all NixOS hosts
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colmena apply --on <host> # Deploy to specific NixOS host (michael, mindy, tahani)
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colmena apply # Deploy to all NixOS hosts
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```
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### Formatting
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```bash
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alejandra . # Format all Nix files
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```
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## Code Style
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### Formatter
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- **Tool**: Alejandra
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- **Config**: `alejandra.toml` specifies tabs for indentation
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- **Command**: Run `alejandra .` before committing
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### File Structure
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- **Hosts**: `hosts/<hostname>/` - Per-machine configurations
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- Darwin: `chidi`, `jason`
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- NixOS: `michael`, `tahani`
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- **Profiles**: `profiles/` - Reusable program/service configurations (imported by hosts)
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- **Modules**: `modules/` - Custom NixOS/darwin modules
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- **Lib**: `lib/` - Shared constants and utilities
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- **Secrets**: `secrets/` - SOPS-encrypted secrets (`.sops.yaml` for config)
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### Nix Language Conventions
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**Function Arguments**:
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```nix
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{inputs, pkgs, lib, ...}:
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```
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Destructure arguments on separate lines. Use `...` to capture remaining args.
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**Imports**:
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```nix
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../../profiles/foo.nix
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```
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Use relative paths from file location, not absolute paths.
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**Attribute Sets**:
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```nix
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options.my.gitea = {
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enable = lib.mkEnableOption "Gitea git hosting service";
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bucket = lib.mkOption {
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type = lib.types.str;
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description = "S3 bucket name";
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};
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};
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```
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One attribute per line with trailing semicolons.
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**Lists with Packages**:
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```nix
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with pkgs;
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[
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age
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alejandra
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ast-grep
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]
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```
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Use `with pkgs;` for package lists, one item per line.
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**Modules**:
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```nix
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{
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config,
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lib,
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pkgs,
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...
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}:
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with lib; let
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cfg = config.my.feature;
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in {
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options.my.feature = {
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enable = mkEnableOption "Feature description";
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};
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config = mkIf cfg.enable {
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# configuration
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};
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}
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```
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- Destructure args on separate lines
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- Use `with lib;` for brevity with NixOS lib functions
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- Define `cfg` for config options
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- Use `mkIf`, `mkForce`, `mkDefault` appropriately
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**Conditional Platform-Specific Code**:
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```nix
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++ lib.optionals stdenv.isDarwin [
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_1password-gui
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dockutil
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]
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++ lib.optionals stdenv.isLinux [
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lm_sensors
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]
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```
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### Naming Conventions
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- **Option names**: `my.<feature>.<option>` for custom modules
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- **Hostnames**: Lowercase, descriptive (e.g., `michael`, `tahani`)
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- **Profile files**: Descriptive, lowercase with hyphens (e.g., `homebrew.nix`)
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### Secrets Management
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- Use SOPS for secrets (see `.sops.yaml`)
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- Never commit unencrypted secrets
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- Secrets files in `hosts/<host>/secrets.nix` import SOPS-generated files
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### Imports Pattern
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Host configs import:
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1. System modules (`modulesPath + "/..."`)
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2. Host-specific files (`./disk-config.nix`, `./hardware-configuration.nix`)
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3. SOPS secrets (`./secrets.nix`)
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4. Custom modules (`../../modules/*.nix`)
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5. Base profiles (`../../profiles/*.nix`)
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6. Input modules (`inputs.<module>.xxxModules.module`)
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Home-manager users import profiles in a similar manner.
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