/
file.go
49 lines (45 loc) · 1.08 KB
/
file.go
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package flag
import (
"encoding/json"
"fmt"
"reflect"
"strings"
"github.com/pelletier/go-toml"
)
func (f *FlagSetEx) ParseTOML(path string) error {
tree, err := toml.LoadFile(path)
if err != nil {
return fmt.Errorf("Parse toml file error: %s", err.Error())
}
return f.loadTOMLTree(tree, nil)
}
func (f *FlagSetEx) loadTOMLTree(tree *toml.Tree, path []string) error {
var err error
for _, key := range tree.Keys() {
fullPath := append(path, key)
value := tree.Get(key)
if subtree, isTree := value.(*toml.Tree); isTree {
err := f.loadTOMLTree(subtree, fullPath)
if err != nil {
return err
}
} else {
fullPath := strings.Join(append(path, key), ".")
if f.Lookup(fullPath) != nil {
// if value is slice of string, int64, uint64, float64, bool,
// time.Time, marshal it to json
if reflect.TypeOf(value).Kind() == reflect.Slice {
var b []byte
b, err = json.Marshal(value)
f.Set(fullPath, string(b))
} else {
err = f.Set(fullPath, fmt.Sprintf("%v", value))
}
if err != nil {
return err
}
}
}
}
return nil
}