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merge.go
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merge.go
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package resource
import (
"encoding/json"
"dario.cat/mergo"
"github.com/yylt/kmerge/pkg/util"
"gopkg.in/yaml.v3"
)
type Mergefn func(s [][]byte) ([]byte, error)
var (
mergeOpt = []func(*mergo.Config){
mergo.WithOverride,
mergo.WithSliceDeepCopy,
}
)
func TextMerge(s [][]byte) ([]byte, error) {
buf := util.GetBuf()
defer util.PutBuf(buf)
for _, v := range s {
buf.Write(v)
}
return buf.Bytes(), nil
}
func JsonMerge(s [][]byte) ([]byte, error) {
var (
data = make([]map[string]any, len(s))
err error
tmp any
)
for i, v := range s {
data[i] = map[string]any{}
err = json.Unmarshal(v, data[i])
if err != nil {
return nil, err
}
if i == 0 {
tmp = data[i]
}
}
for i := 1; i < len(data); i++ {
err = mergo.Merge(tmp, data[i], mergeOpt...)
if err != nil {
return nil, err
}
}
return json.Marshal(tmp)
}
func YamlMerge(s [][]byte) ([]byte, error) {
var (
data = make([]map[string]any, len(s))
err error
tmp any
)
for i, v := range s {
data[i] = map[string]any{}
err = yaml.Unmarshal(v, data[i])
if err != nil {
return nil, err
}
if i == 0 {
tmp = data[i]
}
}
for i := 1; i < len(data); i++ {
err = mergo.Merge(tmp, data[i], mergeOpt...)
if err != nil {
return nil, err
}
}
return yaml.Marshal(tmp)
}