Gitlab CI support added, in order to pre-cache build results in Minio.

pkgs/default.nix

@@ -10,9 +10,10 @@ in
   aacs = c ./aacs.nix { };
   brew = c ./homebrew.nix { };
   create_ssl = c ./create_ssl.nix { };
+  gen-build = c ./gen-build { };
+  hms = c ./hms { };
   inject-darwin = c ./inject-darwin.nix { };
   inject = c ./inject.nix { };
-  hms = c ./hms { };
   qemu-hook = c ./qemu-hook.nix { };
   setup-ssh = c ./setup-ssh { };
   upgrade-pg-cluster = c ./upgrade-pg-cluster.nix { };

pkgs/gen-build/default.nix

@@ -0,0 +1,14 @@
+{
+  buildGoModule,
+}:
+let
+  src = ./.;
+in
+buildGoModule {
+  inherit src;
+  name = "gen-build";
+
+  vendorHash = "sha256-g+yaVIx4jxpAQ/+WrGKxhVeliYx7nLQe/zsGpxV4Fn4=";
+
+  meta.mainProgram = "main";
+}

pkgs/gen-build/gen-build.go

@@ -0,0 +1,109 @@
+package main
+
+import (
+	"encoding/json"
+	"fmt"
+	"os/exec"
+
+	"gopkg.in/yaml.v3"
+)
+
+type NixFlakeOutput struct {
+	Apps                 map[string]interface{} `json:"apps"`
+	Checks               map[string]interface{} `json:"checks"`
+	DarwinConfigurations ArchTypes              `json:"darwinConfigurations"`
+	DevShells            map[string]interface{} `json:"devShells"`
+	HomeConfigurations   map[string]interface{} `json:"homeConfigurations"`
+	NixosConfigurations  map[string]interface{} `json:"nixosConfigurations"`
+	Packages             ArchTypes              `json:"packages"`
+}
+
+type ArchTypes struct {
+	X86_64    map[string]map[string]string `json:"x86_64-linux"`
+	Aarch64   map[string]map[string]string `json:"aarch64-linux"`
+	DarwinX86 map[string]map[string]string `json:"x86_64-darwin"`
+	DarwinArm map[string]map[string]string `json:"aarch64-darwin"`
+}
+
+func GetNixFlakeOutput() (*NixFlakeOutput, error) {
+	cmd := exec.Command("nix", "flake", "show", "--json")
+	output, err := cmd.Output()
+	if err != nil {
+		return nil, err
+	}
+
+	var flakeOutput NixFlakeOutput
+	err = json.Unmarshal(output, &flakeOutput)
+	if err != nil {
+		return nil, err
+	}
+
+	return &flakeOutput, nil
+}
+
+type GitlabCIJob struct {
+	Stage  string   `json:"stage"`
+	Tags   []string `json:"tags"`
+	Script []string `json:"script"`
+}
+
+func NewGitlabCIJob(target string) GitlabCIJob {
+	return GitlabCIJob{
+		Stage: "build",
+		Tags:  []string{"nix"},
+		Script: []string{
+			"nix build -L '.#" + target + "'",
+		},
+	}
+}
+
+func main() {
+	flakeOutput, err := GetNixFlakeOutput()
+	if err != nil {
+		panic(err)
+	}
+
+	// Some boilerplate that Go requires us to have
+	pipeline := make(map[string]interface{})
+	pipeline["stages"] = []string{"build"}
+	pipeline["Run flake check"] = GitlabCIJob{
+		Stage: "build",
+		Tags:  []string{"nix"},
+		Script: []string{
+			"nix flake check --no-build",
+		},
+	}
+	// Since this is kinda a one-off thing, I can use this directly
+	// homeConfigurations are treated like they are not known as a
+	// flake output type. Therefore, it just informs you that it is
+	// part of the output, but does not evaluate deeper to tell you
+	// what the name of it is. I will just do this manually for now.
+	pipeline["Build Home config "] = NewGitlabCIJob("homeConfigurations.\"gregory.hellings\".activationPackage")
+
+	if flakeOutput.Apps != nil {
+		for appName := range flakeOutput.Apps {
+			pipeline[appName] = NewGitlabCIJob("apps." + appName)
+		}
+	}
+
+	if flakeOutput.Packages.X86_64 != nil {
+		for pkgName := range flakeOutput.Packages.X86_64 {
+			if flakeOutput.Packages.X86_64[pkgName]["type"] == "derivation" {
+				pipeline["Build package "+pkgName] = NewGitlabCIJob("packages.x86_64-linux." + pkgName)
+			}
+		}
+	}
+
+	if flakeOutput.NixosConfigurations != nil {
+		for configName := range flakeOutput.NixosConfigurations {
+			pipeline["Build NixOS config "+configName] = NewGitlabCIJob("nixosConfigurations." + configName + ".config.system.build.toplevel")
+		}
+	}
+
+	yamlData, err := yaml.Marshal(pipeline)
+	if err != nil {
+		panic(err)
+	}
+
+	fmt.Printf("%s\n", yamlData)
+}

pkgs/gen-build/go.mod

@@ -0,0 +1,5 @@
+module main
+
+go 1.23.4
+
+require gopkg.in/yaml.v3 v3.0.1

pkgs/gen-build/go.sum

@@ -0,0 +1,4 @@
+gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405 h1:yhCVgyC4o1eVCa2tZl7eS0r+SDo693bJlVdllGtEeKM=
+gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
+gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
+gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=