// preprocess does filtering and aggregation of a profile based on the
// requested options.
func preprocess(prof *profile.Profile, ui plugin.UI, f *flags) error {
if *f.flagFocus != "" || *f.flagIgnore != "" || *f.flagHide != "" {
focus, ignore, hide, err := compileFocusIgnore(*f.flagFocus, *f.flagIgnore, *f.flagHide)
if err != nil {
return err
}
fm, im, hm := prof.FilterSamplesByName(focus, ignore, hide)
warnNoMatches(fm, *f.flagFocus, "Focus", ui)
warnNoMatches(im, *f.flagIgnore, "Ignore", ui)
warnNoMatches(hm, *f.flagHide, "Hide", ui)
}
if *f.flagTagFocus != "" || *f.flagTagIgnore != "" {
focus, err := compileTagFilter(*f.flagTagFocus, ui)
if err != nil {
return err
}
ignore, err := compileTagFilter(*f.flagTagIgnore, ui)
if err != nil {
return err
}
fm, im := prof.FilterSamplesByTag(focus, ignore)
warnNoMatches(fm, *f.flagTagFocus, "TagFocus", ui)
warnNoMatches(im, *f.flagTagIgnore, "TagIgnore", ui)
}
return aggregate(prof, f)
}
func generate(interactive bool, prof *profile.Profile, obj plugin.ObjTool, ui plugin.UI, f *flags) error {
o, postProcess, err := parseOptions(f)
if err != nil {
return err
}
var w io.Writer
if *f.flagOutput == "" {
w = os.Stdout
} else {
ui.PrintErr("Generating report in ", *f.flagOutput)
outputFile, err := os.Create(*f.flagOutput)
if err != nil {
return err
}
defer outputFile.Close()
w = outputFile
}
if prof.Empty() {
return fmt.Errorf("profile is empty")
}
value, stype, unit := sampleFormat(prof, f)
o.SampleType = stype
rpt := report.New(prof, *o, value, unit)
// Do not apply filters if we're just generating a proto, so we
// still have all the data.
if o.OutputFormat != report.Proto {
// Delay applying focus/ignore until after creating the report so
// the report reflects the total number of samples.
if err := preprocess(prof, ui, f); err != nil {
return err
}
}
if postProcess == nil {
return report.Generate(w, rpt, obj)
}
var dot bytes.Buffer
if err = report.Generate(&dot, rpt, obj); err != nil {
return err
}
return postProcess(&dot, w, ui)
}
func aggregate(prof *profile.Profile, f *flags) error {
switch {
case f.isFormat("proto"), f.isFormat("raw"):
// No aggregation for raw profiles.
case f.isFormat("callgrind"):
// Aggregate to file/line for callgrind.
fallthrough
case *f.flagLines:
return prof.Aggregate(true, true, true, true, false)
case *f.flagFiles:
return prof.Aggregate(true, false, true, false, false)
case *f.flagFunctions:
return prof.Aggregate(true, true, false, false, false)
case f.isFormat("weblist"), f.isFormat("disasm"):
return prof.Aggregate(false, true, true, true, true)
}
return nil
}