Merge pull request #369 from fkautz/pr_out_updating_iodine_now_has_global_state

Godeps/Godeps.json

@@ -20,7 +20,7 @@
 		},
 		{
 			"ImportPath": "github.com/minio-io/iodine",
-			"Rev": "d7c4850883ade19431e3808e9c712d3d3e69cdcc"
+			"Rev": "b279ca8ea714fabc969883a4d1612a4e93d01611"
 		},
 		{
 			"ImportPath": "gopkg.in/check.v1",

Godeps/_workspace/src/github.com/minio-io/iodine/iodine.go

@@ -23,6 +23,7 @@ import (
 	"os"
 	"runtime"
 	"strconv"
+	"sync"
 )
 
 // Error is the iodine error which contains a pointer to the original error
@@ -42,6 +43,35 @@ type StackEntry struct {
 	Data map[string]string
 }
 
+var globalState = struct {
+	sync.RWMutex
+	m map[string]string
+}{m: make(map[string]string)}
+
+func SetGlobalState(key, value string) {
+	globalState.Lock()
+	globalState.m[key] = value
+	globalState.Unlock()
+}
+
+func ClearGlobalState() {
+	globalState.Lock()
+	for k, _ := range globalState.m {
+		delete(globalState.m, k)
+	}
+	globalState.Unlock()
+}
+
+func GetGlobalState() map[string]string {
+	result := make(map[string]string)
+	globalState.RLock()
+	for k, v := range globalState.m {
+		result[k] = v
+	}
+	globalState.RUnlock()
+	return result
+}
+
 // Wrap an error, turning it into an iodine error.
 // Adds an initial stack trace.
 func New(err error, data map[string]string) *Error {
@@ -63,18 +93,17 @@ func createStackEntry() StackEntry {
 		Host: host,
 		File: file,
 		Line: line,
-		Data: make(map[string]string),
+		Data: GetGlobalState(),
 	}
 	return entry
 }
 
 // Annotate an error with a stack entry and returns itself
 func (err *Error) Annotate(info map[string]string) *Error {
-	data := make(map[string]string)
+	entry := createStackEntry()
 	for k, v := range info {
-		data[k] = v
+		entry.Data[k] = v
 	}
-	entry := createStackEntry()
 	err.Stack = append(err.Stack, entry)
 	return err
 }

Godeps/_workspace/src/github.com/minio-io/iodine/iodine_test.go

@@ -38,6 +38,54 @@ func TestIodine(t *testing.T) {
 	}
 	var prettyBuffer bytes.Buffer
 	json.Indent(&prettyBuffer, jsonResult, "", "  ")
-	log.Println(string(prettyBuffer.Bytes()))
+}
-	log.Println(iodineError.EmitHumanReadable())
+
+func TestState(t *testing.T) {
+	SetGlobalState("hello", "world")
+	state := GetGlobalState()
+	if res, ok := state["hello"]; ok {
+		if res != "world" {
+			t.Error("global state not set: hello->world")
+		}
+	} else {
+		t.Fail()
+	}
+	ClearGlobalState()
+	if len(GetGlobalState()) != 0 {
+		t.Fail()
+	}
+	SetGlobalState("foo", "bar")
+	err := New(errors.New("a simple error"), nil)
+	if res, ok := err.Stack[0].Data["foo"]; ok {
+		if res != "bar" {
+			t.Error("global state not set: foo->bar")
+		}
+	} else {
+		t.Fail()
+	}
+	err.Annotate(map[string]string{"foo2": "bar2"})
+	if res, ok := err.Stack[0].Data["foo"]; ok {
+		if res != "bar" {
+			t.Error("annotate should not modify previous data entries")
+		}
+	} else {
+		t.Error("annotate should not remove previous data entries")
+	}
+	if res, ok := err.Stack[1].Data["foo"]; ok {
+		if res != "bar" {
+			t.Error("global state should set value properly in annotate")
+		}
+	} else {
+		t.Error("global state should set key properly in annotate")
+	}
+	if res, ok := err.Stack[1].Data["foo2"]; ok {
+		if res != "bar2" {
+			err.Annotate(nil)
+			t.Error("foo2 -> bar should be set")
+		}
+	} else {
+		err.Annotate(nil)
+		log.Println(err.EmitHumanReadable())
+		t.Error("foo2 should be set")
+	}
 }

Godeps/_workspace/src/gopkg.in/check.v1/benchmark_test.go

@@ -3,8 +3,8 @@
 package check_test
 
 import (
-	"time"
 	. "gopkg.in/check.v1"
+	"time"
 )
 
 var benchmarkS = Suite(&BenchmarkS{})

Godeps/_workspace/src/gopkg.in/check.v1/printer_test.go

@@ -24,22 +24,27 @@ func printTestFunc() {
 		println(3) // Comment3
 	}
 	switch 5 {
-    case 6: println(6)   // Comment6
+	case 6:
+		println(6) // Comment6
 		println(7)
 	}
 	switch interface{}(9).(type) { // Comment9
-    case int: println(10)
+	case int:
+		println(10)
 		println(11)
 	}
 	select {
-    case <-(chan bool)(nil): println(14)
+	case <-(chan bool)(nil):
+		println(14)
 		println(15)
-    default: println(16)
+	default:
+		println(16)
 		println(17)
 	}
 	println(19,
 		20)
-    _ = func() { println(21)
+	_ = func() {
+		println(21)
 		println(22)
 	}
 	println(24, func() {