Fix receiving proper current command args, simplifying retrieval of last log line

ffmpeg/parse/parser.go

@@ -32,6 +32,9 @@ type Parser interface {
 
 	// ReportHistory returns an array of previews logs
 	ReportHistory() []ReportHistoryEntry
+
+	// LastLogline returns the last parsed log line
+	LastLogline() string
 }
 
 // Config is the config for the Parser implementation
@@ -71,6 +74,8 @@ type parser struct {
 	logHistory       *ring.Ring
 	logHistoryLength int
 
+	lastLogline string
+
 	progress struct {
 		ffmpeg   ffmpegProgress
 		avstream map[string]ffmpegAVstream
@@ -622,6 +627,8 @@ func (p *parser) addLog(line string) {
 	p.lock.log.Lock()
 	defer p.lock.log.Unlock()
 
+	p.lastLogline = line
+
 	p.log.Value = process.Line{
 		Timestamp: time.Now(),
 		Data:      line,
@@ -646,6 +653,13 @@ func (p *parser) Log() []process.Line {
 	return log
 }
 
+func (p *parser) LastLogline() string {
+	p.lock.log.RLock()
+	defer p.lock.log.RUnlock()
+
+	return p.lastLogline
+}
+
 func (p *parser) ResetStats() {
 	p.lock.progress.Lock()
 	defer p.lock.progress.Unlock()

process/process.go

@@ -64,26 +64,14 @@ type Config struct {
 
 // Status represents the current status of a process
 type Status struct {
-	// State is the current state of the process. See stateType for the known states.
+	State       string        // State is the current state of the process. See stateType for the known states.
-	State string
+	States      States        // States is the cumulative history of states the process had.
-
+	Order       string        // Order is the wanted condition of process, either "start" or "stop"
-	// States is the cumulative history of states the process had.
+	Duration    time.Duration // Duration is the time since the last change of the state
-	States States
+	Time        time.Time     // Time is the time of the last change of the state
-
+	CPU         float64       // Used CPU in percent
-	// Order is the wanted condition of process, either "start" or "stop"
+	Memory      uint64        // Used memory in bytes
-	Order string
+	CommandArgs []string      // Currently running command arguments
-
-	// Duration is the time since the last change of the state
-	Duration time.Duration
-
-	// Time is the time of the last change of the state
-	Time time.Time
-
-	// Used CPU in percent
-	CPU float64
-
-	// Used memory in bytes
-	Memory uint64
 }
 
 // States
@@ -205,12 +193,14 @@ var _ Process = &process{}
 func New(config Config) (Process, error) {
 	p := &process{
 		binary: config.Binary,
-		args:   config.Args,
 		cmd:    nil,
 		parser: config.Parser,
 		logger: config.Logger,
 	}
 
+	p.args = make([]string, len(config.Args))
+	copy(p.args, config.Args)
+
 	// This is a loose check on purpose. If the e.g. the binary
 	// doesn't exist or it is not executable, it will be
 	// reflected in the resulting state.
@@ -414,6 +404,9 @@ func (p *process) Status() Status {
 		Memory:   memory,
 	}
 
+	s.CommandArgs = make([]string, len(p.args))
+	copy(s.CommandArgs, p.args)
+
 	return s
 }
 

restream/restream.go

@@ -1264,8 +1264,8 @@ func (r *restream) GetProcessState(id string) (*app.State, error) {
 	state.CPU = status.CPU
 	state.Duration = status.Duration.Round(10 * time.Millisecond).Seconds()
 	state.Reconnect = -1
-	state.Command = make([]string, len(task.command))
+	state.Command = status.CommandArgs
-	copy(state.Command, task.command)
+	state.LastLog = task.parser.LastLogline()
 
 	if state.Order == "start" && !task.ffmpeg.IsRunning() && task.config.Reconnect {
 		state.Reconnect = float64(task.config.ReconnectDelay) - state.Duration
@@ -1293,12 +1293,6 @@ func (r *restream) GetProcessState(id string) (*app.State, error) {
 		state.Progress.Output[i].ID = task.process.Config.Output[p.Index].ID
 	}
 
-	report := task.parser.Report()
-
-	if len(report.Log) != 0 {
-		state.LastLog = report.Log[len(report.Log)-1].Data
-	}
-
 	return state, nil
 }