Initial sow-tools import

internal/pipeline/apply_manifest.go

@@ -0,0 +1,62 @@
+package pipeline
+
+import (
+	"encoding/json"
+	"fmt"
+	"os"
+	"path/filepath"
+
+	"gitea.westgate.pw/ShadowsOverWestgate/sow-tools/internal/gff"
+	"gitea.westgate.pw/ShadowsOverWestgate/sow-tools/internal/project"
+)
+
+type ApplyManifestResult struct {
+	ManifestPath string
+	ModuleSource string
+	HAKCount     int
+}
+
+func ApplyHAKManifest(p *project.Project, manifestPath string) (ApplyManifestResult, error) {
+	if manifestPath == "" {
+		manifestPath = filepath.Join(p.BuildDir(), "haks.json")
+	}
+
+	raw, err := os.ReadFile(manifestPath)
+	if err != nil {
+		return ApplyManifestResult{}, fmt.Errorf("read hak manifest: %w", err)
+	}
+
+	var manifest BuildManifest
+	if err := json.Unmarshal(raw, &manifest); err != nil {
+		return ApplyManifestResult{}, fmt.Errorf("parse hak manifest: %w", err)
+	}
+
+	moduleSource := filepath.Join(p.SourceDir(), "module", "module.ifo.json")
+	sourceRaw, err := os.ReadFile(moduleSource)
+	if err != nil {
+		return ApplyManifestResult{}, fmt.Errorf("read module ifo source: %w", err)
+	}
+
+	var document gff.Document
+	if err := json.Unmarshal(sourceRaw, &document); err != nil {
+		return ApplyManifestResult{}, fmt.Errorf("parse module ifo source: %w", err)
+	}
+
+	setModuleHAKList(&document, manifest.ModuleHAKs)
+
+	formatted, err := json.MarshalIndent(document, "", "  ")
+	if err != nil {
+		return ApplyManifestResult{}, fmt.Errorf("marshal updated module ifo: %w", err)
+	}
+	formatted = append(formatted, '\n')
+
+	if err := os.WriteFile(moduleSource, formatted, 0o644); err != nil {
+		return ApplyManifestResult{}, fmt.Errorf("write module ifo source: %w", err)
+	}
+
+	return ApplyManifestResult{
+		ManifestPath: manifestPath,
+		ModuleSource: moduleSource,
+		HAKCount:     len(manifest.ModuleHAKs),
+	}, nil
+}