traefik/pkg/config/file/file.go
Ludovic Fernandez 9b9f4be6a4 Add KV store providers (dynamic configuration only)
Co-authored-by: Jean-Baptiste Doumenjou <jb.doumenjou@gmail.com>
2019-11-28 21:56:04 +01:00

32 lines
950 B
Go

// Package file implements decoding between configuration in a file and a typed Configuration.
package file
import (
"github.com/containous/traefik/v2/pkg/config/parser"
)
// Decode decodes the given configuration file into the given element.
// The operation goes through three stages roughly summarized as:
// file contents -> tree of untyped nodes
// untyped nodes -> nodes augmented with metadata such as kind (inferred from element)
// "typed" nodes -> typed element
func Decode(filePath string, element interface{}) error {
if element == nil {
return nil
}
filters := getRootFieldNames(element)
root, err := decodeFileToNode(filePath, filters...)
if err != nil {
return err
}
metaOpts := parser.MetadataOpts{TagName: parser.TagLabel, AllowSliceAsStruct: true}
err = parser.AddMetadata(element, root, metaOpts)
if err != nil {
return err
}
return parser.Fill(element, root, parser.FillerOpts{AllowSliceAsStruct: true})
}