// set identifiers joins signatures in the DROID signature file with any extra reports and adds that to the pronom object
func (p *pronom) setParseables() error {
d, err := newDroid(config.Droid())
if err != nil {
return fmt.Errorf("Pronom: error loading Droid file; got %s\nYou must have a Droid file to build a signature", err)
}
// if noreports set
if config.Reports() == "" {
p.Parseable = d
} else { // otherwise build from reports
// get list of puids that applies limit or exclude filters (actual filtering of Parseable delegated to core/identifier)
puids := d.IDs()
if config.HasLimit() {
puids = config.Limit(puids)
} else if config.HasExclude() {
puids = config.Exclude(puids)
}
r, err := newReports(puids, d.idsPuids())
if err != nil {
return fmt.Errorf("Pronom: error loading reports; got %s\nYou must download PRONOM reports to build a signature (unless you use the -noreports flag). You can use `roy harvest` to download reports", err)
}
p.Parseable = r
}
// add extensions
for _, v := range config.Extend() {
e, err := newDroid(v)
if err != nil {
return fmt.Errorf("Pronom: error loading extension file; got %s", err)
}
p.Parseable = identifier.Join(p.Parseable, e)
}
// exclude byte signatures where also have container signatures, unless doubleup set
if !config.DoubleUp() {
p.Parseable = doublesFilter{
config.ExcludeDoubles(p.IDs(), p.c.IDs()),
p.Parseable,
}
}
return nil
}
func ApplyConfig(p Parseable) Parseable {
if config.NoName() {
p = noName{p}
}
if config.NoMIME() {
p = noMIME{p}
}
if config.NoXML() {
p = noXML{p}
}
if config.NoContainer() {
p = noContainers{p}
}
if config.NoRIFF() {
p = noRIFF{p}
}
if config.NoText() {
p = noText{p}
}
if config.NoPriority() {
p = noPriority{p}
}
// mirror PREV wild segments into EOF if maxBof and maxEOF set
if config.MaxBOF() > 0 && config.MaxEOF() > 0 {
p = Mirror{p}
}
if config.HasLimit() || config.HasExclude() {
ids := p.IDs()
if config.HasLimit() {
ids = config.Limit(ids)
} else {
ids = config.Exclude(ids)
}
p = Filter(ids, p)
}
return p
}