olivetin/service/internal/config/source_file.go

97 lines
2.2 KiB
Go

package config
import (
"github.com/knadh/koanf/v2"
log "github.com/sirupsen/logrus"
)
const sourceFileKey = "x-olivetin-source-file"
// stampSourceOnMaps sets the OliveTin source-file marker on each map in a
// koanf slice value (actions or entities). Always overwrites so user-provided
// x-olivetin-source-file values cannot spoof the real config path.
func stampSourceOnMaps(raw any, sourceFile string) any {
if sourceFile == "" {
return raw
}
items, ok := raw.([]any)
if !ok {
return raw
}
for _, item := range items {
stampSourceOnMap(item, sourceFile)
}
return items
}
func stampSourceOnMap(item any, sourceFile string) {
m, ok := item.(map[string]any)
if !ok {
return
}
m[sourceFileKey] = sourceFile
}
func stampLoadedConfigSources(k *koanf.Koanf, configPath string) {
stampConfigKey(k, "actions", configPath)
stampConfigKey(k, "entities", configPath)
}
func stampConfigKey(k *koanf.Koanf, key, configPath string) {
if err := k.Set(key, stampSourceOnMaps(k.Get(key), configPath)); err != nil {
log.WithFields(log.Fields{
"key": key,
"configPath": configPath,
}).Errorf("Failed to persist source stamps: %v", err)
}
}
// applyStampedSourceFiles copies stamped source paths from koanf maps onto
// unmarshaled actions/entities. SourceFile uses koanf:"-" so YAML cannot set it.
func applyStampedSourceFiles(k *koanf.Koanf, cfg *Config) {
actionPaths := stampedSourcePaths(k.Get("actions"))
for i, action := range cfg.Actions {
if action != nil {
action.SourceFile = sourcePathAt(actionPaths, i)
}
}
entityPaths := stampedSourcePaths(k.Get("entities"))
for i, entity := range cfg.Entities {
if entity != nil {
entity.SourceFile = sourcePathAt(entityPaths, i)
}
}
}
func sourcePathAt(paths []string, index int) string {
if index >= len(paths) {
return ""
}
return paths[index]
}
func stampedSourcePaths(raw any) []string {
items, ok := raw.([]any)
if !ok {
return nil
}
paths := make([]string, len(items))
for i, item := range items {
paths[i] = stampedSourceFromMap(item)
}
return paths
}
func stampedSourceFromMap(item any) string {
m, ok := item.(map[string]any)
if !ok {
return ""
}
path, _ := m[sourceFileKey].(string)
return path
}