Merge pull request 'config/default: add micro:generate uuid/id' (#231) from config-default-gen into master

Reviewed-on: #231

config/default.go

@@ -7,7 +7,9 @@ import (
 	"strings"
 	"time"
 
+	"github.com/google/uuid"
 	"github.com/imdario/mergo"
+	mid "go.unistack.org/micro/v4/util/id"
 	rutil "go.unistack.org/micro/v4/util/reflect"
 	mtime "go.unistack.org/micro/v4/util/time"
 )
@@ -124,6 +126,20 @@ func fillValue(value reflect.Value, val string) error {
 		}
 		value.Set(reflect.ValueOf(v))
 	case reflect.String:
+		switch val {
+		case "micro:generate uuid":
+			uid, err := uuid.NewRandom()
+			if err != nil {
+				return err
+			}
+			val = uid.String()
+		case "micro:generate id":
+			uid, err := mid.New()
+			if err != nil {
+				return err
+			}
+			val = uid
+		}
 		value.Set(reflect.ValueOf(val))
 	case reflect.Float32:
 		v, err := strconv.ParseFloat(val, 32)

config/default_test.go

@@ -7,6 +7,7 @@ import (
 	"time"
 
 	"go.unistack.org/micro/v4/config"
+	mid "go.unistack.org/micro/v4/util/id"
 	mtime "go.unistack.org/micro/v4/util/time"
 )
 
@@ -18,6 +19,8 @@ type cfg struct {
 	DurationValue  time.Duration   `default:"10s"`
 	MDurationValue mtime.Duration  `default:"10s"`
 	MapValue       map[string]bool `default:"key1=true,key2=false"`
+	UUIDValue      string          `default:"micro:generate uuid"`
+	IDValue        string          `default:"micro:generate id"`
 }
 
 type cfgStructValue struct {
@@ -71,6 +74,18 @@ func TestDefault(t *testing.T) {
 	if len(conf.MapValue) != 2 {
 		t.Fatalf("map value invalid: %#+v\n", conf.MapValue)
 	}
+
+	if conf.UUIDValue == "" {
+		t.Fatalf("uuid value empty")
+	} else if len(conf.UUIDValue) != 36 {
+		t.Fatalf("uuid value invalid: %s", conf.UUIDValue)
+	}
+
+	if conf.IDValue == "" {
+		t.Fatalf("id value empty")
+	} else if len(conf.IDValue) != mid.DefaultSize {
+		t.Fatalf("id value invalid: %s", conf.IDValue)
+	}
 	_ = conf
 	// t.Logf("%#+v\n", conf)
 }

go.mod

@@ -4,6 +4,7 @@ go 1.20
 
 require (
 	github.com/DATA-DOG/go-sqlmock v1.5.0
+	github.com/google/uuid v1.3.0
 	github.com/imdario/mergo v0.3.15
 	github.com/patrickmn/go-cache v2.1.0+incompatible
 	github.com/silas/dag v0.0.0-20220518035006-a7e85ada93c5

go.sum

@@ -5,6 +5,8 @@ github.com/golang/protobuf v1.5.3 h1:KhyjKVUg7Usr/dYsdSqoFveMYd5ko72D+zANwlG1mmg
 github.com/golang/protobuf v1.5.3/go.mod h1:XVQd3VNwM+JqD3oG2Ue2ip4fOMUkwXdXDdiuN0vRsmY=
 github.com/google/go-cmp v0.5.5/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE=
 github.com/google/go-cmp v0.5.9 h1:O2Tfq5qg4qc4AmwVlvv0oLiVAGB7enBSJ2x2DqQFi38=
+github.com/google/uuid v1.3.0 h1:t6JiXgmwXMjEs8VusXIJk2BXHsn+wx8BZdTaoZ5fu7I=
+github.com/google/uuid v1.3.0/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
 github.com/imdario/mergo v0.3.15 h1:M8XP7IuFNsqUx6VPK2P9OSmsYsI/YFaGil0uD21V3dM=
 github.com/imdario/mergo v0.3.15/go.mod h1:WBLT9ZmE3lPoWsEzCh9LPo3TiwVN+ZKEjmz+hD27ysY=
 github.com/patrickmn/go-cache v2.1.0+incompatible h1:HRMgzkcYKYpi3C8ajMPV8OFXaaRUnok+kx1WdO15EQc=

metadata/context.go

@@ -39,8 +39,6 @@ func FromOutgoingContext(ctx context.Context) (Metadata, bool) {
 
 // FromContext returns metadata from the given context
 // returned metadata shoud not be modified or race condition happens
-//
-// Deprecated: use FromIncomingContext or FromOutgoingContext
 func FromContext(ctx context.Context) (Metadata, bool) {
 	if ctx == nil {
 		return nil, false
@@ -53,8 +51,6 @@ func FromContext(ctx context.Context) (Metadata, bool) {
 }
 
 // NewContext creates a new context with the given metadata
-//
-// Deprecated: use NewIncomingContext or NewOutgoingContext
 func NewContext(ctx context.Context, md Metadata) context.Context {
 	if ctx == nil {
 		ctx = context.Background()

tracer/noop.go

@@ -4,6 +4,8 @@ import (
 	"context"
 )
 
+var _ Tracer = (*noopTracer)(nil)
+
 type noopTracer struct {
 	opts Options
 }
@@ -21,6 +23,10 @@ func (t *noopTracer) Start(ctx context.Context, name string, opts ...SpanOption)
 	return NewSpanContext(ctx, span), span
 }
 
+func (t *noopTracer) Flush(ctx context.Context) error {
+	return nil
+}
+
 func (t *noopTracer) Init(opts ...Option) error {
 	for _, o := range opts {
 		o(&t.opts)

tracer/tracer.go

@@ -16,6 +16,8 @@ type Tracer interface {
 	Init(...Option) error
 	// Start a trace
 	Start(ctx context.Context, name string, opts ...SpanOption) (context.Context, Span)
+	// Flush flushes spans
+	Flush(ctx context.Context) error
 }
 
 type Span interface {

util/time/duration.go

@@ -2,7 +2,9 @@ package time
 
 import (
 	"encoding/json"
+	"errors"
 	"fmt"
+	"strconv"
 	"time"
 )
 
@@ -13,39 +15,42 @@ func ParseDuration(s string) (time.Duration, error) {
 		return 0, fmt.Errorf(`time: invalid duration "` + s + `"`)
 	}
 
-	//var sb strings.Builder
-	/*
-		for i, r := range s {
-			switch r {
-			case 'd':
-				n, err := strconv.Atoi(s[idx:i])
-				if err != nil {
-					return 0, errors.New("time: invalid duration " + s)
-				}
-				s[idx:i] = fmt.Sprintf("%d", n*24)
-			default:
-				sb.WriteRune(r)
+	var p int
+	var hours int
+loop:
+	for i, r := range s {
+		switch r {
+		case 's', 'm':
+			break loop
+		case 'h':
+			d, err := strconv.Atoi(s[p:i])
+			if err != nil {
+				return 0, errors.New("time: invalid duration " + s)
 			}
-		}
-	*/
-	var td time.Duration
-	var err error
-	switch s[len(s)-1] {
-	case 's', 'm', 'h':
-		td, err = time.ParseDuration(s)
-	case 'd':
-		if td, err = time.ParseDuration(s[:len(s)-1] + "h"); err == nil {
-			td *= 24
-		}
-	case 'y':
-		if td, err = time.ParseDuration(s[:len(s)-1] + "h"); err == nil {
-			year := time.Date(time.Now().Year(), time.December, 31, 0, 0, 0, 0, time.Local)
-			days := year.YearDay()
-			td *= 24 * time.Duration(days)
+			hours += d
+			p = i + 1
+		case 'd':
+			d, err := strconv.Atoi(s[p:i])
+			if err != nil {
+				return 0, errors.New("time: invalid duration " + s)
+			}
+			hours += d * 24
+			p = i + 1
+		case 'y':
+			n, err := strconv.Atoi(s[p:i])
+			if err != nil {
+				return 0, errors.New("time: invalid duration " + s)
+			}
+			var d int
+			for j := n - 1; j >= 0; j-- {
+				d += time.Date(time.Now().Year()+j, time.December, 31, 0, 0, 0, 0, time.Local).YearDay()
+			}
+			hours += d * 24
+			p = i + 1
 		}
 	}
 
-	return td, err
+	return time.ParseDuration(fmt.Sprintf("%dh%s", hours, s[p:]))
 }
 
 func (d Duration) MarshalJSON() ([]byte, error) {
@@ -62,7 +67,7 @@ func (d *Duration) UnmarshalJSON(b []byte) error {
 		*d = Duration(time.Duration(value))
 		return nil
 	case string:
-		dv, err := time.ParseDuration(value)
+		dv, err := ParseDuration(value)
 		if err != nil {
 			return err
 		}

util/time/duration_test.go

@@ -23,27 +23,34 @@ func TestUnmarshalJSON(t *testing.T) {
 		TTL Duration `json:"ttl"`
 	}
 	v := &str{}
+	var err error
 
-	err := json.Unmarshal([]byte(`{"ttl":"10ms"}`), v)
+	err = json.Unmarshal([]byte(`{"ttl":"10ms"}`), v)
 	if err != nil {
 		t.Fatal(err)
 	} else if v.TTL != 10000000 {
 		t.Fatalf("invalid duration %v != 10000000", v.TTL)
 	}
+
+	err = json.Unmarshal([]byte(`{"ttl":"1y"}`), v)
+	if err != nil {
+		t.Fatal(err)
+	} else if v.TTL != 31536000000000000 {
+		t.Fatalf("invalid duration %v != 31536000000000000", v.TTL)
+	}
 }
 
 func TestParseDuration(t *testing.T) {
 	var td time.Duration
 	var err error
-	t.Skip()
+
 	td, err = ParseDuration("14d4h")
 	if err != nil {
 		t.Fatalf("ParseDuration error: %v", err)
 	}
-	if td.String() != "336h0m0s" {
-		t.Fatalf("ParseDuration 14d != 336h0m0s : %s", td.String())
+	if td.String() != "340h0m0s" {
+		t.Fatalf("ParseDuration 14d != 340h0m0s : %s", td.String())
 	}
-
 	td, err = ParseDuration("1y")
 	if err != nil {
 		t.Fatalf("ParseDuration error: %v", err)