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source.go
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source.go
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package file
import (
"fmt"
"io/ioutil"
"log"
json "github.com/pydio/cells/x/jsonx"
"github.com/pydio/cells/x/filex"
"github.com/pydio/go-os/config"
"github.com/pydio/go-os/config/source/file"
)
type fileSource struct {
path string
config.Source
}
func NewSource(opts ...config.SourceOption) config.Source {
options := config.SourceOptions{
Name: file.DefaultFileName,
}
for _, o := range opts {
o(&options)
}
fName := options.Name
// If file exists and is not empty, check it has valid JSON content
if data, err := ioutil.ReadFile(fName); err == nil && len(data) > 0 {
var whatever map[string]interface{}
if e := json.Unmarshal(data, &whatever); e != nil {
errColor := "\033[1;31m%s\033[0m"
fmt.Println("**************************************************************************************")
fmt.Println("It seems that your configuration file contains invalid JSON. Did you edit it manually?")
fmt.Println("File is located at " + fName)
fmt.Println("Error was: ", fmt.Sprintf(errColor, e.Error()))
fmt.Println("")
fmt.Printf(errColor, "FATAL ERROR : Aborting now\n")
fmt.Println("**************************************************************************************")
log.Fatal(e)
}
}
return &fileSource{
fName,
file.NewSource(opts...),
}
}
func (s *fileSource) Write(cs *config.ChangeSet) error {
var m map[string]interface{}
err := json.Unmarshal(cs.Data, &m)
if err != nil {
return err
}
if err := filex.Save(s.path, m); err != nil {
return err
}
return nil
}