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filewriter.go
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filewriter.go
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package filesystem
import (
"encoding/json"
"io/ioutil"
"os"
"path/filepath"
"github.com/pivotal-cf/go-pivnet/v6/logger"
"github.com/pivotal-cf/pivnet-resource/v2/metadata"
"gopkg.in/yaml.v2"
)
type FileWriter struct {
downloadDir string
logger logger.Logger
}
func NewFileWriter(downloadDir string, logger logger.Logger) *FileWriter {
return &FileWriter{
downloadDir: downloadDir,
logger: logger,
}
}
func (w FileWriter) WriteMetadataYAMLFile(mdata metadata.Metadata) error {
yamlMetadataFilepath := filepath.Join(w.downloadDir, "metadata.yaml")
w.logger.Debug("Writing metadata to yaml file")
yamlMetadata, err := yaml.Marshal(mdata)
if err != nil {
// Untested as it is too hard to force yaml.Marshal to return an error
return err
}
err = ioutil.WriteFile(yamlMetadataFilepath, yamlMetadata, os.ModePerm)
if err != nil {
// Untested as it is too hard to force io.WriteFile to return an error
return err
}
return nil
}
func (w FileWriter) WriteMetadataJSONFile(mdata metadata.Metadata) error {
jsonMetadataFilepath := filepath.Join(w.downloadDir, "metadata.json")
w.logger.Debug("Writing metadata to json file")
jsonMetadata, err := json.Marshal(mdata)
if err != nil {
// Untested as it is too hard to force json.Marshal to return an error
return err
}
err = ioutil.WriteFile(jsonMetadataFilepath, jsonMetadata, os.ModePerm)
if err != nil {
// Untested as it is too hard to force io.WriteFile to return an error
return err
}
return nil
}
func (w FileWriter) WriteVersionFile(version string) error {
versionFilepath := filepath.Join(w.downloadDir, "version")
w.logger.Debug("Writing version to file")
err := ioutil.WriteFile(versionFilepath, []byte(version), os.ModePerm)
if err != nil {
// Untested as it is too hard to force io.WriteFile to return an error
return err
}
return nil
}