func main() {
myflags := flag.NewFlagSet("tfgroup", flag.ExitOnError)
cfg := &tf.TfgroupConfig{}
cfg.DefineFlags(myflags)
err := myflags.Parse(os.Args[1:])
err = cfg.ValidateConfig()
if err != nil || cfg.Help {
usage(err, myflags)
}
leftover := myflags.Args()
//p("leftover = %v", leftover)
if len(leftover) != 0 {
fmt.Fprintf(os.Stderr, "tfgroup reads stdin and writes stdout, no args allowed.\n")
showUse(myflags)
os.Exit(1)
}
i := int64(1)
f := os.Stdin
panicOn(err)
//buf := make([]byte, 1024*1024)
fr := tf.NewFrameReader(f, 1024*1024)
var frame tf.Frame
var nextMin time.Time
var countLastMin int64
incr := time.Minute
for ; err == nil; i++ {
_, _, err = fr.NextFrame(&frame)
if err != nil {
if err == io.EOF {
break
}
fmt.Fprintf(os.Stderr, "tfgroup error from fr.NextFrame() at i=%v: '%v'\n", i, err)
os.Exit(1)
}
cur := time.Unix(0, frame.Tm())
if nextMin.IsZero() {
nextMin = cur.Add(incr)
}
for cur.After(nextMin) {
fmt.Printf("%v %v\n", countLastMin, nextMin)
nextMin = nextMin.Add(incr)
countLastMin = 0
}
countLastMin++
}
fmt.Printf("%v %v\n", countLastMin, nextMin)
}
func main() {
myflags := flag.NewFlagSet("tfsum", flag.ExitOnError)
cfg := &tf.TfsumConfig{}
cfg.DefineFlags(myflags)
err := myflags.Parse(os.Args[1:])
err = cfg.ValidateConfig()
if err != nil || cfg.Help {
usage(err, myflags)
}
leftover := myflags.Args()
//p("leftover = %v", leftover)
if len(leftover) != 0 {
fmt.Fprintf(os.Stderr, "tfsum reads stdin and writes stdout, no args allowed.\n")
showUse(myflags)
os.Exit(1)
}
i := int64(1)
f := os.Stdin
panicOn(err)
buf := make([]byte, 1024*1024)
fr := tf.NewFrameReader(f, 1024*1024)
var frame tf.Frame
for ; err == nil; i++ {
_, _, err, _ = fr.NextFrame(&frame)
if err != nil {
if err == io.EOF {
return
}
fmt.Fprintf(os.Stderr, "tfcat error from fr.NextFrame() at i=%v: '%v'\n", i, err)
os.Exit(1)
}
hash := frame.Blake2b()
chk := int64(binary.LittleEndian.Uint64(hash[:8]))
newf, err := tf.NewMarshalledFrame(buf, time.Unix(0, frame.Tm()), tf.EvOneInt64, 0, chk, nil)
panicOn(err)
_, err = os.Stdout.Write(newf)
panicOn(err)
}
}
func main() {
myflags := flag.NewFlagSet("tfindex", flag.ExitOnError)
cfg := &tf.TfindexConfig{}
cfg.DefineFlags(myflags)
err := myflags.Parse(os.Args[1:])
err = cfg.ValidateConfig()
if err != nil {
usage(err, myflags)
}
leftover := myflags.Args()
//Q("leftover = %v", leftover)
if len(leftover) == 0 {
fmt.Fprintf(os.Stderr, "no input files given\n")
showUse(myflags)
os.Exit(1)
}
i := int64(1)
nextfile:
for _, inputFile := range leftover {
//P("starting on inputFile '%s'", inputFile)
if !FileExists(inputFile) {
fmt.Fprintf(os.Stderr, "input file '%s' does not exist.\n", inputFile)
os.Exit(1)
}
f, err := os.Open(inputFile)
panicOn(err)
fr := tf.NewFrameReader(f, 1024*1024)
writeFile := inputFile + ".idx"
of, err := os.Create(writeFile)
panicOn(err)
fw := tf.NewFrameWriter(of, 1024*1024)
var offset int64
var frame tf.Frame
var nextTm time.Time
var nbytes int64
for ; err == nil; i++ {
_, nbytes, err, _ = fr.NextFrame(&frame)
if err != nil {
if err == io.EOF {
fw.Flush()
fw.Sync()
of.Close()
continue nextfile
}
fmt.Fprintf(os.Stderr, "tfindex error from fr.NextFrame() at i=%v: '%v'\n", i, err)
os.Exit(1)
}
unix := frame.Tm()
tm := time.Unix(0, unix)
trunc := tm.Truncate(time.Minute)
if i == 0 {
first, err := tf.NewFrame(tm, tf.EvOneInt64, 0, offset, nil)
panicOn(err)
fw.Append(first)
nextTm = trunc.Add(time.Minute)
} else if tm.After(nextTm) {
next, err := tf.NewFrame(tm, tf.EvOneInt64, 0, offset, nil)
panicOn(err)
fw.Append(next)
nextTm = trunc.Add(time.Minute)
}
offset += nbytes
}
}
}
