func Init() {
runtime.GOMAXPROCS(1)
args, errs := arg.Parse(argMap)
if len(errs) != 0 {
printError("Errors while argument parsing:")
for _, err := range errs {
printError(" %v", err)
}
os.Exit(1)
}
if arg.GetB(ARG_NO_COLOR) {
fmtc.DisableColors = true
}
if arg.GetB(ARG_VER) {
showAbout()
return
}
if len(args) == 0 || arg.GetB(ARG_HELP) {
showUsage()
return
}
file := findFile(args[0])
for {
if fsutil.CheckPerms("FRS", file) {
break
}
time.Sleep(time.Millisecond * 500)
}
if arg.Has(ARG_DATE_FROM) || arg.Has(ARG_DATE_TO) {
filterFile(file)
} else {
readFile(file)
}
}
// filterFile read file and show records only between given time range
func filterFile(file string) {
fd, err := os.OpenFile(file, os.O_RDONLY, 0644)
if err != nil {
printError("Can't open file %s: %v", file, err)
os.Exit(1)
}
defer fd.Close()
reader := bufio.NewReader(fd)
var showSection = false
var currentSection = ""
var dataSections = []string{"REQUEST BODY", "RESPONSE BODY"}
fromDate := time.Date(2016, 1, 1, 0, 0, 0, 0, time.Local)
toDate := time.Now()
if arg.Has(ARG_DATE_FROM) {
fromDate, err = parseRangeDate(arg.GetS(ARG_DATE_FROM))
if err != nil {
printError("Can't parse range start: %v", err)
os.Exit(1)
}
}
if arg.Has(ARG_DATE_TO) {
toDate, err = parseRangeDate(arg.GetS(ARG_DATE_TO))
if err != nil {
printError("Can't parse range end: %v", err)
os.Exit(1)
}
}
for {
line, err := reader.ReadString('\n')
if err != nil {
break
}
line = strings.TrimRight(line, "\n")
line = strings.TrimRight(line, "\r")
rt := getLineType(line)
if rt == TYPE_SEPARATOR {
recDateStr := extractTimeFromSeparator(line)
recDate, _ := time.Parse(separatorTimeLayout, recDateStr)
showSection = recDate.Unix() >= fromDate.Unix() && recDate.Unix() <= toDate.Unix()
}
if !showSection {
continue
}
if rt == TYPE_HEADER {
currentSection = extractHeaderName(line)
renderLine(line, rt)
continue
}
if sliceutil.Contains(dataSections, currentSection) {
fmtc.Println(line)
continue
}
renderLine(line, rt)
}
}