Resolved the p and pr logs issue

Author: Senjuti256

docs/cmd/tkn_pipeline_logs.md

@@ -35,12 +35,14 @@ Show logs for given Pipeline and PipelineRun:
 ### Options
 
 ```
-  -a, --all          show all logs including init steps injected by tekton
-  -f, --follow       stream live logs
-  -h, --help         help for logs
-  -L, --last         show logs for last PipelineRun
-      --limit int    lists number of PipelineRuns (default 5)
-  -t, --timestamps   show logs with timestamp
+  -a, --all            show all logs including init steps injected by tekton
+  -f, --follow         stream live logs
+  -h, --help           help for logs
+  -L, --last           show logs for last PipelineRun
+      --limit int      lists number of PipelineRuns (default 5)
+      --prefix         prefix each log line with the log source (task name and step name) (default true)
+  -t, --task strings   show logs for mentioned Tasks only
+      --timestamps     show logs with timestamp
 ```
 
 ### Options inherited from parent commands

docs/man/man1/tkn-pipeline-logs.1

@@ -40,7 +40,15 @@ Show Pipeline logs
     lists number of PipelineRuns
 
 .PP
-\fB\-t\fP, \fB\-\-timestamps\fP[=false]
+\fB\-\-prefix\fP[=true]
+    prefix each log line with the log source (task name and step name)
+
+.PP
+\fB\-t\fP, \fB\-\-task\fP=[]
+    show logs for mentioned Tasks only
+
+.PP
+\fB\-\-timestamps\fP[=false]
     show logs with timestamp
 
 

pkg/cmd/pipeline/logs.go

@@ -95,8 +95,10 @@ Show logs for given Pipeline and PipelineRun:
 	c.Flags().BoolVarP(&opts.Last, "last", "L", false, "show logs for last PipelineRun")
 	c.Flags().BoolVarP(&opts.AllSteps, "all", "a", false, "show all logs including init steps injected by tekton")
 	c.Flags().BoolVarP(&opts.Follow, "follow", "f", false, "stream live logs")
-	c.Flags().BoolVarP(&opts.Timestamps, "timestamps", "t", false, "show logs with timestamp")
+	c.Flags().BoolVarP(&opts.Timestamps, "timestamps", "", false, "show logs with timestamp")
 	c.Flags().IntVarP(&opts.Limit, "limit", "", 5, "lists number of PipelineRuns")
+	c.Flags().BoolVarP(&opts.Prefixing, "prefix", "", true, "prefix each log line with the log source (task name and step name)")
+	c.Flags().StringSliceVarP(&opts.Tasks, "task", "t", []string{}, "show logs for mentioned Tasks only")
 
 	return c
 }