61 lines
1.5 KiB
Go
61 lines
1.5 KiB
Go
// Package migrator provides import/export functionality. It defines Importer and Exporter interfaces
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// amd implements for disqus (importer only) and "native" remark (both importer and exporter).
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// Also implements AutoBackup scheduler running exports as backups and saving them locally.
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package migrator
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import (
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"io"
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"log"
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"os"
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"github.com/pkg/errors"
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"github.com/umputun/remark/app/store"
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)
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// Importer defines interface to convert posts from external sources
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type Importer interface {
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Import(r io.Reader, siteID string) error
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}
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// Exporter defines interface to export comments from internal store
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type Exporter interface {
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Export(w io.Writer, siteID string) error
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}
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// ImportParams defines everything needed to run import
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type ImportParams struct {
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DataStore store.Interface
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InputFile string
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Provider string
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SiteID string
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}
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// ImportComments imports from given provider format and saves to store
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func ImportComments(p ImportParams) error {
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log.Printf("[INFO] import from %s (%s) to %s", p.InputFile, p.Provider, p.SiteID)
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var importer Importer
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switch p.Provider {
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case "disqus":
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importer = &Disqus{DataStore: p.DataStore}
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case "native":
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importer = &Remark{DataStore: p.DataStore}
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default:
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return errors.Errorf("unsupported import provider %s", p.Provider)
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}
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fh, err := os.Open(p.InputFile)
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if err != nil {
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return errors.Wrapf(err, "can't open import file %s", p.InputFile)
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}
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defer func() {
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if err = fh.Close(); err != nil {
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log.Printf("[WARN] can't close %s, %s", p.InputFile, err)
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}
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}()
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return importer.Import(fh, p.SiteID)
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}
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