} else {
f, err := os.Create(file)
if err != nil {
fmt.Println(err)
os.Exit(1)
}
defer f.Close()
w = f
}
switch format {
case "csv":
fw = origins.NewCSVWriter(w)
default:
logrus.Fatal("unknown format", format)
}
var count int
if viper.GetBool("log_merge") {
count = mergeDomains(engine, fw, domains, since, asof)
} else {
count = concatDomains(engine, fw, domains, since, asof)
}
fmt.Fprintf(os.Stderr, "%d facts\n", count)
},
}
if err != nil {
fmt.Println(err)
os.Exit(1)
}
var (
iterator origins.Iterator
writer origins.Writer
)
// Data written to the buffer are converted into facts, normalized, and
// copied to the CSV writer.
iterator = origins.NewCSVReader(stdout)
// Facts are written to stdout.
writer = origins.NewCSVWriter(os.Stdout)
// Modify the fact before writing using the passed arguments.
// TODO: there is a overlap with the transactor.
writer = &modWriter{
writer: writer,
modifier: func(f *origins.Fact) {
if f.Domain == "" {
f.Domain = domain
}
f.Operation = operation
if f.Time.IsZero() {
f.Time = t
}