func Example() {
writer := uilive.New()
writer.Start()
for i := 0; i <= 100; i++ {
fmt.Fprintf(writer, "Downloading.. (%d/%d) GB\n", i, 100)
time.Sleep(time.Millisecond * 5)
}
fmt.Fprintln(writer, "Finished: Downloaded 100GB")
time.Sleep(time.Millisecond)
}
// New returns a new progress bar with defaults
func New() *Progress {
return &Progress{
Width: Width,
Out: Out,
Bars: make([]*Bar, 0),
RefreshInterval: RefreshInterval,
lw: uilive.New(),
stopChan: make(chan struct{}),
}
}
func run(universe *data.Universe) int {
writer := uilive.New()
writer.Start()
defer writer.Stop()
for {
drawScreen(writer, universe)
universe = evolveUniverse(universe)
time.Sleep(250 * time.Millisecond)
}
return 0
}
func Example() {
writer := uilive.New()
// start listening to updates and render
writer.Start()
for i := 0; i <= 100; i++ {
fmt.Fprintf(writer, "Downloading.. (%d/%d) GB\n", i, 100)
time.Sleep(time.Millisecond * 5)
}
fmt.Fprintln(writer, "Finished: Downloaded 100GB")
writer.Stop() // flush and stop rendering
}
// Start starts the rendering the progress of progress bars. It listens for updates using `bar.Set(n)` and new bars when added using `AddBar`
func (p *Progress) Start() {
lw := uilive.New()
lw.Out = p.Out
lw.RefreshInterval = p.RefreshInterval
go func() {
for {
for _, bar := range p.Bars {
fmt.Fprintln(lw, bar.String())
}
lw.Flush()
lw.Wait()
}
}()
}
func newStateUI(verbose bool) *stateUI {
s := &stateUI{
HeaderSink: make(chan string),
EventSink: make(chan scheduler.Event),
MessageSink: make(chan string),
states: make(map[string]string),
writer: uilive.New(),
stopChan: make(chan bool),
verbose: verbose,
autoConfirm: false,
}
s.bypassWriter = s.writer.Bypass()
//s.writer.Start()
go s.processSinks()
return s
}
func main() {
writer := uilive.New()
// start listening for updates and render
writer.Start()
for _, f := range []string{"Foo.zip", "Bar.iso"} {
for i := 0; i <= 50; i++ {
fmt.Fprintf(writer, "Downloading %s.. (%d/%d) GB\n", f, i, 50)
time.Sleep(time.Millisecond * 25)
}
fmt.Fprintf(writer.Bypass(), "Downloaded %s\n", f)
}
fmt.Fprintln(writer, "Finished: Downloaded 100GB")
writer.Stop() // flush and stop rendering
}
func main() {
// USR1 Will change mode to passthough to behave just like tail -f, counts and rates continue in this mode
var passthroughChan = make(chan os.Signal, 1)
signal.Notify(passthroughChan, syscall.SIGUSR1)
// USR2 Will reset the counters
var resetChan = make(chan os.Signal, 1)
signal.Notify(resetChan, syscall.SIGUSR2)
patternArgs := os.Args[1:]
logCounters := []*LogCounter{}
for _, patternArg := range patternArgs {
r, err := regexp.Compile(patternArg)
if err != nil {
log.Println(err)
os.Exit(1)
}
logCounters = append(logCounters, NewLogCounter(r))
}
// If no parameters are given, count each distinct line
var useDistinct = false
if len(logCounters) == 0 {
useDistinct = true
}
repaintInterval, err := time.ParseDuration(config["repaint_interval"])
if err != nil {
repaintInterval = 1 * time.Second
}
repaintTicker := time.NewTicker(repaintInterval)
writer := uilive.New()
// reader := bufio.NewReader(os.Stdin)
scanner := bufio.NewScanner(os.Stdin)
lineChan := make(chan []byte)
go func(scanner *bufio.Scanner, lineChan chan []byte) {
for scanner.Scan() {
var scannerBytes = scanner.Bytes()
var line = make([]byte, len(scannerBytes))
copy(line, scannerBytes)
lineChan <- line
}
close(lineChan)
}(scanner, lineChan)
writer.Start()
defer writer.Stop()
var totalLinesRead = 0
var passthrough = false
defer repaint(writer, logCounters, totalLinesRead)
for {
select {
case <-resetChan:
for _, cnt := range logCounters {
cnt.Reset()
totalLinesRead = 0
repaint(writer, logCounters, totalLinesRead)
}
case <-passthroughChan:
passthrough = !passthrough
case <-repaintTicker.C:
if !passthrough {
repaint(writer, logCounters, totalLinesRead)
}
case line, ok := <-lineChan:
if !ok {
return
}
if passthrough {
log.Println(string(line))
}
if useDistinct {
p := fmt.Sprintf("^%s$", regexp.QuoteMeta(string(line)))
var patternExists = false
for _, c := range logCounters {
if c.p.String() == p {
patternExists = true
break
}
}
if !patternExists {
r := regexp.MustCompile(p)
c := NewLogCounter(r)
logCounters = append(logCounters, c)
}
}
for _, c := range logCounters {
indexMatches := c.p.FindAllIndex(line, -1)
if indexMatches != nil {
c.Incr(int64(len(indexMatches)))
}
}
totalLinesRead++
}
}
}
func (opts *serviceCheckReleaseOpts) RunE(cmd *cobra.Command, args []string) error {
if len(args) != 0 {
return errorWantedNoArgs
}
if opts.releaseID == "" {
return fmt.Errorf("-r, --release-id is required")
}
if opts.noFollow {
job, err := opts.API.GetRelease(noInstanceID, jobs.JobID(opts.releaseID))
if err != nil {
return err
}
buf, err := json.MarshalIndent(job, "", " ")
if err != nil {
return err
}
_, err = os.Stdout.Write(buf)
return err
}
var (
w io.Writer = os.Stdout
stop = func() {}
)
if !opts.noTty && isatty.IsTerminal(os.Stdout.Fd()) {
liveWriter := uilive.New()
liveWriter.Start()
var stopOnce sync.Once
w, stop = liveWriter, func() { stopOnce.Do(liveWriter.Stop) }
}
var (
job jobs.Job
err error
prevStatus string
lastHeartbeatDatabase time.Time
lastHeartbeatLocal = time.Now()
retryCount = 0
lastSucceeded = time.Now()
)
for range time.Tick(time.Second) {
if retryCount > 0 {
fmt.Fprintf(w, "Last status (%s): %s\n", lastSucceeded.Format(time.Kitchen), prevStatus)
fmt.Fprintf(w, "Service unavailable. Retrying (#%d) ...\n", retryCount)
}
job, err = opts.API.GetRelease(noInstanceID, jobs.JobID(opts.releaseID))
if err != nil {
if err, ok := errors.Cause(err).(*transport.APIError); ok && err.IsUnavailable() {
if time.Since(lastSucceeded) > retryTimeout {
stop()
fmt.Fprintln(os.Stdout, "Giving up; you can try again with")
fmt.Fprintf(os.Stdout, " fluxctl check-release -r %s\n", opts.releaseID)
fmt.Fprintln(os.Stdout)
break
}
retryCount++
continue
}
fmt.Fprintf(w, "Status: error querying release.\n") // error will get printed below
break
}
lastSucceeded = time.Now()
retryCount = 0
status := "Waiting for job to be claimed..."
if job.Status != "" {
status = job.Status
}
// Checking heartbeat is a bit tricky. We get a timestamp in database
// time, which may be radically different to our time. I've chosen to
// check liveness by marking local time whenever the heartbeat time
// changes. Going long enough without updating that local timestamp
// triggers the warning.
if !job.Claimed.IsZero() {
if job.Heartbeat != lastHeartbeatDatabase {
lastHeartbeatDatabase = job.Heartbeat
lastHeartbeatLocal = time.Now()
}
if delta := time.Since(lastHeartbeatLocal); delta > largestHeartbeatDelta {
status += fmt.Sprintf(" -- no heartbeat in %s; worker may have crashed", delta)
}
}
if status != prevStatus {
fmt.Fprintf(w, "Status: %s\n", status)
}
prevStatus = status
if job.Done {
break
}
}
stop()
if err != nil {
return err
}
spec := job.Params.(jobs.ReleaseJobParams)
fmt.Fprintf(os.Stdout, "\n")
if !job.Success {
fmt.Fprintf(os.Stdout, "Here's as far as we got:\n")
} else if spec.Kind == flux.ReleaseKindPlan {
fmt.Fprintf(os.Stdout, "Here's the plan:\n")
} else {
fmt.Fprintf(os.Stdout, "Here's what happened:\n")
}
for i, msg := range job.Log {
fmt.Fprintf(os.Stdout, " %d) %s\n", i+1, msg)
}
if spec.Kind == flux.ReleaseKindExecute {
fmt.Fprintf(os.Stdout, "Took %s\n", job.Finished.Sub(job.Submitted))
}
return nil
}