Merge pull request #944 from abperiasamy/new-probe

updated probe

main.go

@@ -25,6 +25,7 @@ import (
 
 	"github.com/dustin/go-humanize"
 	"github.com/minio/cli"
+	"github.com/minio/minio-xl/pkg/probe"
 )
 
 func init() {
@@ -147,6 +148,9 @@ VERSION:
 }
 
 func main() {
+	// Set projet's root source path.
+	probe.SetRoot()
+
 	app := registerApp()
 	app.Before = func(c *cli.Context) error {
 		globalJSONFlag = c.GlobalBool("json")

vendor/github.com/minio/minio-xl/pkg/probe/probe.go

@@ -29,6 +29,19 @@ import (
 	"github.com/dustin/go-humanize"
 )
 
+// Root path to the project's source.
+var rootPath string
+
+// SetRoot sets the project's root path. Root path is automatically
+// determined from the calling function's source file location. It is
+// typically called from the main() function.
+func SetRoot() {
+	// Catch the calling function's source file path.
+	_, file, _, _ := runtime.Caller(1)
+	// Save the directory alone.
+	rootPath = filepath.Dir(file)
+}
+
 // GetSysInfo returns useful system statistics.
 func GetSysInfo() map[string]string {
 	host, err := os.Hostname()
@@ -113,7 +126,7 @@ func (e *Error) trace(fields ...string) *Error {
 	pc, file, line, _ := runtime.Caller(2)
 	function := runtime.FuncForPC(pc).Name()
 	_, function = filepath.Split(function)
-	file = "..." + strings.TrimPrefix(file, os.Getenv("GOPATH")) // trim gopathSource from file
+	file = strings.TrimPrefix(file, rootPath+string(os.PathSeparator)) // trims project's root path.
 	tp := TracePoint{}
 	if len(fields) > 0 {
 		tp = TracePoint{Line: line, Filename: file, Function: function, Env: map[string][]string{"Tags": fields}}

vendor/github.com/minio/minio-xl/pkg/probe/probe_test.go

@@ -43,6 +43,8 @@ func testDummy2() *probe.Error {
 }
 
 func (s *MySuite) TestProbe(c *C) {
+	probe.SetRoot() // Set project's root source path.
+
 	es := testDummy2().Trace("TopOfStack")
 	// Uncomment the following Println to visually test probe call trace.
 	// fmt.Println("Expecting a simulated error here.", es)

vendor/vendor.json

@@ -64,8 +64,8 @@
 		},
 		{
 			"path": "github.com/minio/minio-xl/pkg/probe",
-			"revision": "a5fc6d2430ba2ebcab31b938ab02a42bac85dc2e",
-			"revisionTime": "2015-10-20T11:16:42-07:00"
+			"revision": "0ccfa2965bc93efde3efda8b0f0779690f192d4f",
+			"revisionTime": "2015-10-23T19:31:44-07:00"
 		},
 		{
 			"path": "github.com/minio/minio-xl/pkg/quick",