Protect captured prompt configuration files

internal/framework/llm/source_paths.go

@@ -0,0 +1,65 @@
+package llm
+
+import (
+	"fmt"
+	"path/filepath"
+	"sort"
+	"strconv"
+	"strings"
+
+	ck "gitea.maximumdirect.net/eric/ConfigKit"
+	pk "gitea.maximumdirect.net/eric/promptkit"
+	"gopkg.in/yaml.v3"
+)
+
+func capturedSourcePaths(engine *pk.Engine) ([]string, error) {
+	inspection, err := engine.InspectConfiguration()
+	if err != nil {
+		return nil, fmt.Errorf("inspect configuration: %w", err)
+	}
+
+	sources := inspection.Sources()
+	byID := make(map[string]ck.SourceInfo, len(sources))
+	paths := make(map[string]struct{}, len(sources))
+	for _, source := range sources {
+		byID[source.ID] = source
+		if source.Kind == ck.SourceKindFile && source.Path != "" {
+			paths[source.Path] = struct{}{}
+		}
+	}
+
+	metadata := inspection.Metadata()
+	for _, path := range metadata.HistoricalPaths() {
+		segments := strings.Split(strings.TrimPrefix(path.String(), "/"), "/")
+		if len(segments) != 6 || segments[0] != "prompts" || segments[3] != "messages" || segments[5] != "content_file" {
+			continue
+		}
+		if messageIndex, err := strconv.Atoi(segments[4]); err != nil || messageIndex < 0 {
+			continue
+		}
+		field, ok := metadata.Lookup(path)
+		if !ok || field.Null || len(field.Origin.Locations) != 1 {
+			continue
+		}
+		source, ok := byID[field.Origin.Locations[0].SourceID]
+		if !ok || source.Kind != ck.SourceKindFile || source.Path == "" {
+			continue
+		}
+		explanation, ok := inspection.Explain(path)
+		if !ok || !explanation.Effective.Present || explanation.Effective.Redacted {
+			continue
+		}
+		var resource string
+		if err := yaml.Unmarshal([]byte(explanation.Effective.YAML), &resource); err != nil {
+			return nil, fmt.Errorf("decode captured message resource at %s: %w", path.String(), err)
+		}
+		paths[filepath.Join(filepath.Dir(source.Path), filepath.FromSlash(resource))] = struct{}{}
+	}
+
+	result := make([]string, 0, len(paths))
+	for path := range paths {
+		result = append(result, path)
+	}
+	sort.Strings(result)
+	return result, nil
+}