func ExampleChangesetScanner() {
scanner := osmxml.New(context.Background(), os.Stdin)
for scanner.Scan() {
fmt.Println(scanner.Element().Changeset) // Println will add back the final '\n'
}
if err := scanner.Err(); err != nil {
fmt.Fprintln(os.Stderr, "reading standard input:", err)
}
}
func readBz2(filename string) *osm.OSM {
log.Printf("Reading bz2 file %v", filename)
f, err := os.Open(filename)
if err != nil {
panic(err)
}
defer f.Close()
r := bzip2.NewReader(f)
scanner := osmxml.New(context.Background(), r)
return scanner2osm(scanner)
}
// Changesets returns the complete list of changesets in for the given replication sequence.
func (ds *Datasource) Changesets(ctx context.Context, n ChangesetSeqNum) (osm.Changesets, error) {
r, err := ds.changesetReader(ctx, n)
if err != nil {
return nil, err
}
defer r.Close()
gzReader, err := gzip.NewReader(r)
if err != nil {
return nil, err
}
defer gzReader.Close()
var changesets []*osm.Changeset
scanner := osmxml.New(ctx, gzReader)
for scanner.Scan() {
e := scanner.Element()
changesets = append(changesets, e.Changeset)
}
return changesets, scanner.Err()
}