// applyFocus filters samples based on the focus/ignore options
func applyFocus(prof *profile.Profile, v variables, ui plugin.UI) error {
focus, err := compileRegexOption("focus", v["focus"].value, nil)
ignore, err := compileRegexOption("ignore", v["ignore"].value, err)
hide, err := compileRegexOption("hide", v["hide"].value, err)
show, err := compileRegexOption("show", v["show"].value, err)
tagfocus, err := compileTagFilter("tagfocus", v["tagfocus"].value, ui, err)
tagignore, err := compileTagFilter("tagignore", v["tagignore"].value, ui, err)
prunefrom, err := compileRegexOption("prune_from", v["prune_from"].value, err)
if err != nil {
return err
}
fm, im, hm, hnm := prof.FilterSamplesByName(focus, ignore, hide, show)
warnNoMatches(focus == nil || fm, "Focus", ui)
warnNoMatches(ignore == nil || im, "Ignore", ui)
warnNoMatches(hide == nil || hm, "Hide", ui)
warnNoMatches(show == nil || hnm, "Show", ui)
tfm, tim := prof.FilterSamplesByTag(tagfocus, tagignore)
warnNoMatches(tagfocus == nil || tfm, "TagFocus", ui)
warnNoMatches(tagignore == nil || tim, "TagIgnore", ui)
if prunefrom != nil {
prof.PruneFrom(prunefrom)
}
return nil
}
