Apply Code Coverage Badge

* go mod tidy

* update ci

* added commit hash check to avoid unnecessary repository cloning

.github/ISSUE_TEMPLATE/bug_report.md

@@ -1,6 +1,6 @@
 ---
 name: Bug report
-about: For reporting bugs in go-micro
+about: For reporting bugs in micro
 title: "[BUG]"
 labels: ''
 assignees: ''
@@ -16,9 +16,3 @@ assignees: ''
 **How to reproduce the bug:**
 
 If possible, please include a minimal code snippet here.
-
-**Environment:**
-Go Version: please paste `go version` output here
-```
-please paste `go env` output here
-```

.github/ISSUE_TEMPLATE/feature-request---enhancement.md

@@ -1,6 +1,6 @@
 ---
 name: Feature request / Enhancement
-about: If you have a need not served by go-micro
+about: If you have a need not served by micro
 title: "[FEATURE]"
 labels: ''
 assignees: ''
@@ -14,4 +14,4 @@ A clear and concise description of what the problem is. Ex. I'm always frustrate
 A clear and concise description of what you want to happen.
 
 **Additional context**
-Add any other context or screenshots about the feature request here.
+Add any other context or screenshots about the feature request here.

.github/ISSUE_TEMPLATE/question.md

@@ -1,14 +1,8 @@
 ---
 name: Question
-about: Ask a question about go-micro
+about: Ask a question about micro
 title: ''
 labels: ''
 assignees: ''
 
----
+---
-
-Before asking, please check if your question has already been answered: 
-
-1. Check the documentation - https://micro.mu/docs/
-2. Check the examples and plugins - https://github.com/micro/examples & https://github.com/micro/go-plugins
-3. Search existing issues

.github/autoapprove.yml

@@ -0,0 +1,28 @@
+name: "autoapprove"
+
+on:
+  pull_request_target:
+    types: [assigned, opened, synchronize, reopened]
+  workflow_run:
+    workflows: ["prbuild"]
+    types:
+      - completed
+
+permissions:
+  pull-requests: write
+  contents: write
+
+jobs:
+  autoapprove:
+    runs-on: ubuntu-latest
+    steps:
+      - name: approve
+        run: [ "curl -o tea https://dl.gitea.com/tea/main/tea-main-linux-amd64",
+               "chmod +x ./tea",
+               "./tea login add --name unistack --token ${{ secrets.GITHUB_TOKEN }} --url https://git.unistack.org",
+               "./tea pr --repo ${{ github.event.repository.name }}"
+        ]
+        if: github.actor == 'vtolstov'
+        id: approve
+        with:
+          github-token: ${{ secrets.GITHUB_TOKEN }}

.github/renovate.json

@@ -1,19 +0,0 @@
-{
-  "extends": [
-    "config:base"
-  ],
-  "packageRules": [
-    {
-      "matchUpdateTypes": ["minor", "patch", "pin", "digest"],
-      "automerge": true
-    },
-    {
-      "groupName": "all deps",
-      "separateMajorMinor": true,
-      "groupSlug": "all",
-      "packagePatterns": [
-        "*"
-      ]
-    }
-  ]
-}

.github/stale.sh

@@ -1,13 +0,0 @@
-#!/bin/bash -ex
-
-export PATH=$PATH:$(pwd)/bin
-export GO111MODULE=on
-export GOBIN=$(pwd)/bin
-
-#go get github.com/rvflash/goup@v0.4.1
-
-#goup -v ./...
-#go get github.com/psampaz/go-mod-outdated@v0.6.0
-go list -u -m -mod=mod -json all | go-mod-outdated -update -direct -ci || true
-
-#go list -u -m -json all | go-mod-outdated -update

.github/workflows/build.yml

@@ -1,46 +0,0 @@
-name: build
-on:
- push:
-    branches:
-    - master
-jobs:
-  test:
-    name: test
-    runs-on: ubuntu-latest
-    steps:
-    - name: setup
-      uses: actions/setup-go@v2
-      with:
-        go-version: 1.16
-    - name: checkout
-      uses: actions/checkout@v2
-    - name: cache
-      uses: actions/cache@v2
-      with:
-        path: ~/go/pkg/mod
-        key: ${{ runner.os }}-go-${{ hashFiles('**/go.sum') }}
-        restore-keys: ${{ runner.os }}-go-
-    - name: deps
-      run: go get -v -t -d ./...
-    - name: test
-      env:
-        INTEGRATION_TESTS: yes
-      run: go test -mod readonly -v ./...
-  lint:
-    name: lint
-    runs-on: ubuntu-latest
-    steps:
-      - name: checkout
-        uses: actions/checkout@v2
-      - name: lint
-        uses: golangci/golangci-lint-action@v2
-        continue-on-error: true
-        with:
-          # Required: the version of golangci-lint is required and must be specified without patch version: we always use the latest patch version.
-          version: v1.30
-          # Optional: working directory, useful for monorepos
-          # working-directory: somedir
-          # Optional: golangci-lint command line arguments.
-          # args: --issues-exit-code=0
-          # Optional: show only new issues if it's a pull request. The default value is `false`.
-          # only-new-issues: true

.github/workflows/job_coverage.yml

@@ -0,0 +1,53 @@
+name: coverage
+
+on:
+  push:
+    branches: [ main, v3, v4 ]
+    paths-ignore:
+      - '.github/**'
+      - '.gitea/**'
+  pull_request:
+    branches: [ main, v3, v4 ]
+
+jobs:
+
+  build:
+    if: github.server_url != 'https://github.com'
+    runs-on: ubuntu-latest
+    steps:
+    - name: checkout code
+      uses: actions/checkout@v4
+      with:
+        filter: 'blob:none'
+
+    - name: setup go
+      uses: actions/setup-go@v5
+      with:
+        cache-dependency-path: "**/*.sum"
+        go-version: 'stable'
+
+    - name: test coverage
+      run: |
+        go test -v -cover ./... -covermode=count -coverprofile coverage.out -coverpkg ./...
+        go tool cover -func coverage.out -o coverage.out
+
+    - name: coverage badge
+      uses: tj-actions/coverage-badge-go@v2
+      with:
+        green: 80
+        filename: coverage.out
+
+    - uses: stefanzweifel/git-auto-commit-action@v4
+      name: autocommit
+      with:
+        commit_message: Apply Code Coverage Badge
+        skip_fetch: false
+        skip_checkout: false
+        file_pattern: ./README.md
+
+    - name: push
+      if: steps.auto-commit-action.outputs.changes_detected == 'true'
+      uses: ad-m/github-push-action@master
+      with:
+        github_token: ${{ github.token }}
+        branch: ${{ github.ref }}

.github/workflows/job_lint.yml

@@ -0,0 +1,29 @@
+name: lint
+
+on:
+  pull_request:
+    types: [opened, reopened, synchronize]
+    branches: [ master, v3, v4 ]
+    paths-ignore:
+      - '.github/**'
+      - '.gitea/**'
+
+jobs:
+  lint:
+    runs-on: ubuntu-latest
+    steps:
+    - name: checkout code
+      uses: actions/checkout@v4
+      with:
+        filter: 'blob:none'
+    - name: setup go
+      uses: actions/setup-go@v5
+      with:
+        cache-dependency-path: "**/*.sum"
+        go-version: 'stable'
+    - name: setup deps
+      run: go get -v ./...
+    - name: run lint
+      uses: golangci/golangci-lint-action@v6
+      with:
+        version: 'latest'

.github/workflows/job_sync.yml

@@ -0,0 +1,94 @@
+name: sync
+
+on:
+  schedule:
+    - cron: '*/5 * * * *'
+  # Allows you to run this workflow manually from the Actions tab
+  workflow_dispatch:
+
+jobs:
+  sync:
+    if: github.server_url != 'https://github.com'
+    runs-on: ubuntu-latest
+    steps:
+    - name: init
+      run: |
+        git config --global user.email "vtolstov <vtolstov@users.noreply.github.com>"
+        git config --global user.name "github-actions[bot]"
+        echo "machine git.unistack.org login vtolstov password ${{ secrets.TOKEN_GITEA }}" >> /root/.netrc
+        echo "machine github.com login vtolstov password ${{ secrets.TOKEN_GITHUB }}" >> /root/.netrc
+
+    - name: check master
+      id: check_master
+      run: |
+        src_hash=$(git ls-remote https://github.com/${GITHUB_REPOSITORY} refs/heads/master | cut -f1)
+        dst_hash=$(git ls-remote ${GITHUB_SERVER_URL}/${GITHUB_REPOSITORY} refs/heads/master | cut -f1)
+        echo "src_hash=$src_hash"
+        echo "dst_hash=$dst_hash"
+        if [ "$src_hash" != "$dst_hash" ]; then
+          echo "sync_needed=true" >> $GITHUB_OUTPUT
+        else
+          echo "sync_needed=false" >> $GITHUB_OUTPUT
+        fi
+
+    - name: sync master
+      if: steps.check_master.outputs.sync_needed == 'true'
+      run: |
+        git clone --filter=blob:none --filter=tree:0 --branch master --single-branch ${GITHUB_SERVER_URL}/${GITHUB_REPOSITORY} repo
+        cd repo
+        git remote add --no-tags --fetch --track master upstream https://github.com/${GITHUB_REPOSITORY}
+        git pull --rebase upstream master
+        git push upstream master --progress
+        git push origin master --progress
+        cd ../
+        rm -rf repo
+
+    - name: check v3
+      id: check_v3
+      run: |
+        src_hash=$(git ls-remote https://github.com/${GITHUB_REPOSITORY} refs/heads/v3 | cut -f1)
+        dst_hash=$(git ls-remote ${GITHUB_SERVER_URL}/${GITHUB_REPOSITORY} refs/heads/v3 | cut -f1)
+        echo "src_hash=$src_hash"
+        echo "dst_hash=$dst_hash"
+        if [ "$src_hash" != "$dst_hash" ]; then
+          echo "sync_needed=true" >> $GITHUB_OUTPUT
+        else
+          echo "sync_needed=false" >> $GITHUB_OUTPUT
+        fi
+
+    - name: sync v3
+      if: steps.check_v3.outputs.sync_needed == 'true'
+      run: |
+        git clone --filter=blob:none --filter=tree:0 --branch v3 --single-branch ${GITHUB_SERVER_URL}/${GITHUB_REPOSITORY} repo
+        cd repo
+        git remote add --no-tags --fetch --track v3 upstream https://github.com/${GITHUB_REPOSITORY}
+        git pull --rebase upstream v3
+        git push upstream v3 --progress
+        git push origin v3 --progress
+        cd ../
+        rm -rf repo
+
+    - name: check v4
+      id: check_v4
+      run: |
+        src_hash=$(git ls-remote https://github.com/${GITHUB_REPOSITORY} refs/heads/v4 | cut -f1)
+        dst_hash=$(git ls-remote ${GITHUB_SERVER_URL}/${GITHUB_REPOSITORY} refs/heads/v4 | cut -f1)
+        echo "src_hash=$src_hash"
+        echo "dst_hash=$dst_hash"
+        if [ "$src_hash" != "$dst_hash" ]; then
+          echo "sync_needed=true" >> $GITHUB_OUTPUT
+        else
+          echo "sync_needed=false" >> $GITHUB_OUTPUT
+        fi
+
+    - name: sync v4
+      if: steps.check_v4.outputs.sync_needed == 'true'
+      run: |
+        git clone --filter=blob:none --filter=tree:0 --branch v4 --single-branch ${GITHUB_SERVER_URL}/${GITHUB_REPOSITORY} repo
+        cd repo
+        git remote add --no-tags --fetch --track v4 upstream https://github.com/${GITHUB_REPOSITORY}
+        git pull --rebase upstream v4
+        git push upstream v4 --progress
+        git push origin v4 --progress
+        cd ../
+        rm -rf repo

.github/workflows/job_test.yml

@@ -0,0 +1,31 @@
+name: test
+
+on:
+  pull_request:
+    types: [opened, reopened, synchronize]
+    branches: [ master, v3, v4 ]
+  push:
+    branches: [ master, v3, v4 ]
+    paths-ignore:
+      - '.github/**'
+      - '.gitea/**'
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+    steps:
+    - name: checkout code
+      uses: actions/checkout@v4
+      with:
+        filter: 'blob:none'
+    - name: setup go
+      uses: actions/setup-go@v5
+      with:
+        cache-dependency-path: "**/*.sum"
+        go-version: 'stable'
+    - name: setup deps
+      run: go get -v ./...
+    - name: run test
+      env:
+        INTEGRATION_TESTS: yes
+      run: go test -mod readonly -v ./...

.github/workflows/job_tests.yml

@@ -0,0 +1,50 @@
+name: test
+
+on:
+  pull_request:
+    types: [opened, reopened, synchronize]
+    branches: [ master, v3, v4 ]
+  push:
+    branches: [ master, v3, v4 ]
+    paths-ignore:
+      - '.github/**'
+      - '.gitea/**'
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+    steps:
+    - name: checkout code
+      uses: actions/checkout@v4
+      with:
+        filter: 'blob:none'
+    - name: checkout tests
+      uses: actions/checkout@v4
+      with:
+        ref: master
+        filter: 'blob:none'
+        repository: unistack-org/micro-tests
+        path: micro-tests
+    - name: setup go
+      uses: actions/setup-go@v5
+      with:
+        cache-dependency-path: "**/*.sum"
+        go-version: 'stable'
+    - name: setup go work
+      env:
+        GOWORK: ${{ github.workspace }}/go.work
+      run: |
+        go work init
+        go work use .
+        go work use micro-tests
+    - name: setup deps
+      env:
+        GOWORK: ${{ github.workspace }}/go.work
+      run: go get -v ./...
+    - name: run tests
+      env:
+        INTEGRATION_TESTS: yes
+        GOWORK: ${{ github.workspace }}/go.work
+      run: |
+        cd micro-tests
+        go test -mod readonly -v ./... || true

.github/workflows/pr.yml

@@ -1,46 +0,0 @@
-name: prbuild
-on:
-  pull_request:
-    branches:
-    - master
-jobs:
-  test:
-    name: test
-    runs-on: ubuntu-latest
-    steps:
-    - name: setup
-      uses: actions/setup-go@v2
-      with:
-        go-version: 1.16
-    - name: checkout
-      uses: actions/checkout@v2
-    - name: cache
-      uses: actions/cache@v2
-      with:
-        path: ~/go/pkg/mod
-        key: ${{ runner.os }}-go-${{ hashFiles('**/go.sum') }}
-        restore-keys: ${{ runner.os }}-go-
-    - name: deps
-      run: go get -v -t -d ./...
-    - name: test
-      env:
-        INTEGRATION_TESTS: yes
-      run: go test -mod readonly -v ./...
-  lint:
-    name: lint
-    runs-on: ubuntu-latest
-    steps:
-      - name: checkout
-        uses: actions/checkout@v2
-      - name: lint
-        uses: golangci/golangci-lint-action@v2
-        continue-on-error: true
-        with:
-          # Required: the version of golangci-lint is required and must be specified without patch version: we always use the latest patch version.
-          version: v1.30
-          # Optional: working directory, useful for monorepos
-          # working-directory: somedir
-          # Optional: golangci-lint command line arguments.
-          # args: --issues-exit-code=0
-          # Optional: show only new issues if it's a pull request. The default value is `false`.
-          # only-new-issues: true

.golangci.yml

@@ -0,0 +1,5 @@
+run:
+  concurrency: 8
+  timeout: 5m
+  issues-exit-code: 1
+  tests: true

README.md

@@ -1 +1,2 @@
-# micro-config-consul
+# micro-config-consul
+![Coverage](https://img.shields.io/badge/Coverage-0.0%25-red)

consul.go

@@ -3,18 +3,14 @@ package consul
 import (
 	"context"
 	"fmt"
-	"reflect"
 
+	"dario.cat/mergo"
 	"github.com/hashicorp/consul/api"
-	"github.com/imdario/mergo"
+	"go.unistack.org/micro/v4/config"
-	"github.com/unistack-org/micro/v3/config"
+	rutil "go.unistack.org/micro/v4/util/reflect"
-	"github.com/unistack-org/micro/v3/util/jitter"
-	rutil "github.com/unistack-org/micro/v3/util/reflect"
 )
 
-var (
+var DefaultStructTag = "consul"
-	DefaultStructTag = "consul"
-)
 
 type consulConfig struct {
 	opts config.Options
@@ -31,7 +27,11 @@ func (c *consulConfig) Init(opts ...config.Option) error {
 		o(&c.opts)
 	}
 
-	if c.opts.Codec == nil {
+	if err := config.DefaultBeforeInit(c.opts.Context, c); err != nil && !c.opts.AllowFail {
+		return err
+	}
+
+	if c.opts.Codec == nil && !c.opts.AllowFail {
 		return config.ErrCodecMissing
 	}
 
@@ -79,81 +79,114 @@ func (c *consulConfig) Init(opts ...config.Option) error {
 	c.cli = cli
 	c.path = path
 
+	if err := config.DefaultAfterInit(c.opts.Context, c); err != nil && !c.opts.AllowFail {
+		return err
+	}
+
 	return nil
 }
 
 func (c *consulConfig) Load(ctx context.Context, opts ...config.LoadOption) error {
-	for _, fn := range c.opts.BeforeLoad {
+	if c.opts.SkipLoad != nil && c.opts.SkipLoad(ctx, c) {
-		if err := fn(ctx, c); err != nil && !c.opts.AllowFail {
+		return nil
-			return err
+	}
+
+	options := config.NewLoadOptions(opts...)
+
+	if err := config.DefaultBeforeLoad(ctx, c); err != nil && !c.opts.AllowFail {
+		return err
+	}
+
+	path := c.path
+
+	if options.Context != nil {
+		if v, ok := options.Context.Value(pathKey{}).(string); ok && v != "" {
+			path = v
 		}
 	}
 
-	pair, _, err := c.cli.KV().Get(c.path, nil)
+	pair, _, err := c.cli.KV().Get(path, nil)
+	if err != nil {
+		err = fmt.Errorf("consul path %s load error: %w", path, err)
+	} else if pair == nil {
+		err = fmt.Errorf("consul path %s load error: not found", path)
+	}
+
 	if err != nil && !c.opts.AllowFail {
-		return fmt.Errorf("consul path %s load error: %v", c.path, err)
+		return err
-	} else if pair == nil && !c.opts.AllowFail {
-		return fmt.Errorf("consul path %s not found", c.path)
 	}
 
-	if err == nil && pair != nil {
+	if err = config.DefaultAfterLoad(ctx, c); err != nil && !c.opts.AllowFail {
-		options := config.NewLoadOptions(opts...)
+		return err
-		mopts := []func(*mergo.Config){mergo.WithTypeCheck}
+	}
-		if options.Override {
-			mopts = append(mopts, mergo.WithOverride)
-		}
-		if options.Append {
-			mopts = append(mopts, mergo.WithAppendSlice)
-		}
 
-		dst := c.opts.Struct
+	mopts := []func(*mergo.Config){mergo.WithTypeCheck}
-		if options.Struct != nil {
+	if options.Override {
-			dst = options.Struct
+		mopts = append(mopts, mergo.WithOverride)
-		}
+	}
+	if options.Append {
+		mopts = append(mopts, mergo.WithAppendSlice)
+	}
 
-		src, err := rutil.Zero(dst)
+	dst := c.opts.Struct
+	if options.Struct != nil {
+		dst = options.Struct
+	}
+
+	src, err := rutil.Zero(dst)
+	if err == nil {
+		err = c.opts.Codec.Unmarshal(pair.Value, src)
 		if err == nil {
-			err = c.opts.Codec.Unmarshal(pair.Value, src)
+			err = mergo.Merge(dst, src, mopts...)
-			if err == nil {
-				err = mergo.Merge(dst, src, mopts...)
-			}
 		}
-
-		if err != nil && !c.opts.AllowFail {
-			return err
-		}
-
 	}
 
-	for _, fn := range c.opts.AfterLoad {
+	if err != nil && !c.opts.AllowFail {
-		if err := fn(ctx, c); err != nil && !c.opts.AllowFail {
+		return err
-			return err
+	}
-		}
+
+	if err := config.DefaultAfterLoad(ctx, c); err != nil && !c.opts.AllowFail {
+		return err
 	}
 
 	return nil
 }
 
 func (c *consulConfig) Save(ctx context.Context, opts ...config.SaveOption) error {
-	for _, fn := range c.opts.BeforeSave {
+	if c.opts.SkipSave != nil && c.opts.SkipSave(ctx, c) {
-		if err := fn(ctx, c); err != nil && !c.opts.AllowFail {
+		return nil
-			return err
+	}
+
+	options := config.NewSaveOptions(opts...)
+
+	if err := config.DefaultBeforeSave(ctx, c); err != nil && !c.opts.AllowFail {
+		return err
+	}
+
+	path := c.path
+
+	dst := c.opts.Struct
+	if options.Struct != nil {
+		dst = options.Struct
+	}
+
+	if options.Context != nil {
+		if v, ok := options.Context.Value(pathKey{}).(string); ok && v != "" {
+			path = v
 		}
 	}
 
-	buf, err := c.opts.Codec.Marshal(c.opts.Struct)
+	buf, err := c.opts.Codec.Marshal(dst)
 	if err == nil {
-		_, err = c.cli.KV().Put(&api.KVPair{Key: c.path, Value: buf}, nil)
+		_, err = c.cli.KV().Put(&api.KVPair{Key: path, Value: buf}, nil)
 	}
 
 	if err != nil && !c.opts.AllowFail {
-		return fmt.Errorf("consul path %s save error: %v", c.path, err)
+		return fmt.Errorf("consul path %s save error: %v", path, err)
 	}
 
-	for _, fn := range c.opts.AfterSave {
+	if err := config.DefaultAfterSave(ctx, c); err != nil && !c.opts.AllowFail {
-		if err := fn(ctx, c); err != nil && !c.opts.AllowFail {
+		return err
-			return err
-		}
 	}
 
 	return nil
@@ -168,9 +201,17 @@ func (c *consulConfig) Name() string {
 }
 
 func (c *consulConfig) Watch(ctx context.Context, opts ...config.WatchOption) (config.Watcher, error) {
+	path := c.path
+	options := config.NewWatchOptions(opts...)
+	if options.Context != nil {
+		if v, ok := options.Context.Value(pathKey{}).(string); ok && v != "" {
+			path = v
+		}
+	}
+
 	w := &consulWatcher{
 		cli:   c.cli,
-		path:  c.path,
+		path:  path,
 		opts:  c.opts,
 		wopts: config.NewWatchOptions(opts...),
 		done:  make(chan struct{}),
@@ -183,98 +224,6 @@ func (c *consulConfig) Watch(ctx context.Context, opts ...config.WatchOption) (c
 	return w, nil
 }
 
-type consulWatcher struct {
-	cli   *api.Client
-	path  string
-	opts  config.Options
-	wopts config.WatchOptions
-	done  chan struct{}
-	vchan chan map[string]interface{}
-	echan chan error
-}
-
-func (w *consulWatcher) run() {
-	ticker := jitter.NewTicker(w.wopts.MinInterval, w.wopts.MaxInterval)
-	defer ticker.Stop()
-
-	src := w.opts.Struct
-	if w.wopts.Struct != nil {
-		src = w.wopts.Struct
-	}
-
-	for {
-		select {
-		case <-w.done:
-			return
-		case <-ticker.C:
-			dst, err := rutil.Zero(src)
-			if err != nil {
-				w.echan <- err
-				return
-			}
-
-			pair, _, err := w.cli.KV().Get(w.path, nil)
-			if err != nil {
-				w.echan <- err
-				return
-			}
-
-			if pair == nil {
-				w.echan <- fmt.Errorf("consul path %s not found", w.path)
-				return
-			}
-
-			err = w.opts.Codec.Unmarshal(pair.Value, dst)
-			if err != nil {
-				w.echan <- err
-				return
-			}
-
-			srcmp, err := rutil.StructFieldsMap(src)
-			if err != nil {
-				w.echan <- err
-				return
-			}
-
-			dstmp, err := rutil.StructFieldsMap(dst)
-			if err != nil {
-				w.echan <- err
-				return
-			}
-
-			for sk, sv := range srcmp {
-				if reflect.DeepEqual(dstmp[sk], sv) {
-					delete(dstmp, sk)
-				}
-			}
-			if len(dstmp) > 0 {
-				w.vchan <- dstmp
-				src = dst
-			}
-		}
-	}
-}
-
-func (w *consulWatcher) Next() (map[string]interface{}, error) {
-	select {
-	case <-w.done:
-		break
-	case err := <-w.echan:
-		return nil, err
-	case v, ok := <-w.vchan:
-		if !ok {
-			break
-		}
-		return v, nil
-	}
-	return nil, config.ErrWatcherStopped
-}
-
-func (w *consulWatcher) Stop() error {
-	close(w.done)
-	return nil
-}
-
 func NewConfig(opts ...config.Option) config.Config {
 	options := config.NewOptions(opts...)
 	if len(options.StructTag) == 0 {

go.mod

@@ -1,13 +1,42 @@
-module github.com/unistack-org/micro-config-consul/v3
+module go.unistack.org/micro-config-consul/v4
 
-go 1.16
+go 1.23.0
+
+toolchain go1.24.2
 
 require (
-	github.com/google/btree v1.0.0 // indirect
+	dario.cat/mergo v1.0.1
-	github.com/hashicorp/consul/api v1.8.1
+	github.com/hashicorp/consul/api v1.32.0
-	github.com/hashicorp/go-hclog v0.16.1
+	github.com/hashicorp/go-hclog v1.6.3
-	github.com/hashicorp/golang-lru v0.5.3 // indirect
+	go.unistack.org/micro/v4 v4.1.9
-	github.com/imdario/mergo v0.3.12
+)
-	github.com/pkg/errors v0.9.1 // indirect
+
-	github.com/unistack-org/micro/v3 v3.5.8
+require (
+	github.com/armon/go-metrics v0.4.1 // indirect
+	github.com/ash3in/uuidv8 v1.2.0 // indirect
+	github.com/fatih/color v1.18.0 // indirect
+	github.com/google/uuid v1.6.0 // indirect
+	github.com/hashicorp/errwrap v1.1.0 // indirect
+	github.com/hashicorp/go-cleanhttp v0.5.2 // indirect
+	github.com/hashicorp/go-immutable-radix v1.3.1 // indirect
+	github.com/hashicorp/go-msgpack v1.1.5 // indirect
+	github.com/hashicorp/go-multierror v1.1.1 // indirect
+	github.com/hashicorp/go-rootcerts v1.0.2 // indirect
+	github.com/hashicorp/go-sockaddr v1.0.7 // indirect
+	github.com/hashicorp/go-version v1.6.0 // indirect
+	github.com/hashicorp/golang-lru v1.0.2 // indirect
+	github.com/hashicorp/serf v0.10.1 // indirect
+	github.com/matoous/go-nanoid v1.5.1 // indirect
+	github.com/mattn/go-colorable v0.1.13 // indirect
+	github.com/mattn/go-isatty v0.0.20 // indirect
+	github.com/mitchellh/go-homedir v1.1.0 // indirect
+	github.com/mitchellh/mapstructure v1.5.0 // indirect
+	github.com/spf13/cast v1.7.1 // indirect
+	github.com/stretchr/objx v0.5.2 // indirect
+	go.unistack.org/micro-proto/v4 v4.1.0 // indirect
+	golang.org/x/exp v0.0.0-20250106191152-7588d65b2ba8 // indirect
+	golang.org/x/net v0.37.0 // indirect
+	golang.org/x/sys v0.31.0 // indirect
+	google.golang.org/protobuf v1.36.5 // indirect
+	gopkg.in/yaml.v3 v3.0.1 // indirect
 )

go.sum

@@ -1,138 +1,255 @@
+dario.cat/mergo v1.0.1 h1:Ra4+bf83h2ztPIQYNP99R6m+Y7KfnARDfID+a+vLl4s=
+dario.cat/mergo v1.0.1/go.mod h1:uNxQE+84aUszobStD9th8a29P2fMDhsBdgRYvZOxGmk=
+github.com/DATA-DOG/go-sqlmock v1.5.2 h1:OcvFkGmslmlZibjAjaHm3L//6LiuBgolP7OputlJIzU=
+github.com/DATA-DOG/go-sqlmock v1.5.2/go.mod h1:88MAG/4G7SMwSE3CeA0ZKzrT5CiOU3OJ+JlNzwDqpNU=
+github.com/DataDog/datadog-go v3.2.0+incompatible/go.mod h1:LButxg5PwREeZtORoXG3tL4fMGNddJ+vMq1mwgfaqoQ=
+github.com/alecthomas/template v0.0.0-20160405071501-a0175ee3bccc/go.mod h1:LOuyumcjzFXgccqObfd/Ljyb9UuFJ6TxHnclSeseNhc=
+github.com/alecthomas/template v0.0.0-20190718012654-fb15b899a751/go.mod h1:LOuyumcjzFXgccqObfd/Ljyb9UuFJ6TxHnclSeseNhc=
+github.com/alecthomas/units v0.0.0-20151022065526-2efee857e7cf/go.mod h1:ybxpYRFXyAe+OPACYpWeL0wqObRcbAqCMya13uyzqw0=
+github.com/alecthomas/units v0.0.0-20190717042225-c3de453c63f4/go.mod h1:ybxpYRFXyAe+OPACYpWeL0wqObRcbAqCMya13uyzqw0=
 github.com/armon/circbuf v0.0.0-20150827004946-bbbad097214e/go.mod h1:3U/XgcO3hCbHZ8TKRvWD2dDTCfh9M9ya+I9JpbB7O8o=
-github.com/armon/go-metrics v0.0.0-20180917152333-f0300d1749da h1:8GUt8eRujhVEGZFFEjBj46YV4rDjvGrNxb0KMWYkL2I=
 github.com/armon/go-metrics v0.0.0-20180917152333-f0300d1749da/go.mod h1:Q73ZrmVTwzkszR9V5SSuryQ31EELlFMUz1kKyl939pY=
+github.com/armon/go-metrics v0.4.1 h1:hR91U9KYmb6bLBYLQjyM+3j+rcd/UhE+G78SFnF8gJA=
+github.com/armon/go-metrics v0.4.1/go.mod h1:E6amYzXo6aW1tqzoZGT755KkbgrJsSdpwZ+3JqfkOG4=
 github.com/armon/go-radix v0.0.0-20180808171621-7fddfc383310/go.mod h1:ufUuZ+zHj4x4TnLV4JWEpy2hxWSpsRywHrMgIH9cCH8=
 github.com/armon/go-radix v1.0.0/go.mod h1:ufUuZ+zHj4x4TnLV4JWEpy2hxWSpsRywHrMgIH9cCH8=
+github.com/ash3in/uuidv8 v1.2.0 h1:2oogGdtCPwaVtyvPPGin4TfZLtOGE5F+W++E880G6SI=
+github.com/ash3in/uuidv8 v1.2.0/go.mod h1:BnU0wJBxnzdEKmVg4xckBkD+VZuecTFTUP3M0dWgyY4=
+github.com/beorn7/perks v0.0.0-20180321164747-3a771d992973/go.mod h1:Dwedo/Wpr24TaqPxmxbtue+5NUziq4I4S80YR8gNf3Q=
+github.com/beorn7/perks v1.0.0/go.mod h1:KWe93zE9D1o94FZ5RNwFwVgaQK1VOXiVxmqh+CedLV8=
+github.com/beorn7/perks v1.0.1/go.mod h1:G2ZrVWU2WbWT9wwq4/hrbKbnv/1ERSJQ0ibhJ6rlkpw=
 github.com/bgentry/speakeasy v0.1.0/go.mod h1:+zsyZBPWlz7T6j88CTgSN5bM796AkVf0kBD4zp0CCIs=
+github.com/cespare/xxhash/v2 v2.1.1/go.mod h1:VGX0DQ3Q6kWi7AoAeZDth3/j3BFtOZR5XLFGgcrjCOs=
+github.com/circonus-labs/circonus-gometrics v2.3.1+incompatible/go.mod h1:nmEj6Dob7S7YxXgwXpfOuvO54S+tGdZdw9fuRZt25Ag=
+github.com/circonus-labs/circonusllhist v0.1.3/go.mod h1:kMXHVDlOchFAehlya5ePtbp5jckzBHf4XRpQvBOLI+I=
 github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
-github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
 github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
-github.com/ef-ds/deque v1.0.4/go.mod h1:gXDnTC3yqvBcHbq2lcExjtAcVrOnJCbMcZXmuj8Z4tg=
+github.com/davecgh/go-spew v1.1.2-0.20180830191138-d8f796af33cc h1:U9qPSI2PIWSS1VwoXQT9A3Wy9MM3WgvqSxFWenqJduM=
+github.com/davecgh/go-spew v1.1.2-0.20180830191138-d8f796af33cc/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/fatih/color v1.7.0/go.mod h1:Zm6kSWBoL9eyXnKyktHP6abPY2pDugNf5KwzbycvMj4=
-github.com/fatih/color v1.9.0 h1:8xPHl4/q1VyqGIPif1F+1V3Y3lSmrq01EabUW3CoW5s=
 github.com/fatih/color v1.9.0/go.mod h1:eQcE1qtQxscV5RaZvpXrrb8Drkc3/DdQ+uUYCNjL+zU=
-github.com/golang-jwt/jwt v3.2.2+incompatible/go.mod h1:8pz2t5EyA70fFQQSrl6XZXzqecmYZeUEB8OUGHkxJ+I=
+github.com/fatih/color v1.13.0/go.mod h1:kLAiJbzzSOZDVNGyDpeOxJ47H46qBXwg5ILebYFFOfk=
+github.com/fatih/color v1.18.0 h1:S8gINlzdQ840/4pfAwic/ZE0djQEH3wM94VfqLTZcOM=
+github.com/fatih/color v1.18.0/go.mod h1:4FelSpRwEGDpQ12mAdzqdOukCy4u8WUtOY6lkT/6HfU=
+github.com/frankban/quicktest v1.14.6 h1:7Xjx+VpznH+oBnejlPUj8oUpdxnVs4f8XU8WnHkI4W8=
+github.com/frankban/quicktest v1.14.6/go.mod h1:4ptaffx2x8+WTWXmUCuVU6aPUX1/Mz7zb5vbUoiM6w0=
+github.com/go-kit/kit v0.8.0/go.mod h1:xBxKIO96dXMWWy0MnWVtmwkA9/13aqxPnvrjFYMA2as=
+github.com/go-kit/kit v0.9.0/go.mod h1:xBxKIO96dXMWWy0MnWVtmwkA9/13aqxPnvrjFYMA2as=
+github.com/go-logfmt/logfmt v0.3.0/go.mod h1:Qt1PoO58o5twSAckw1HlFXLmHsOX5/0LbT9GBnD5lWE=
+github.com/go-logfmt/logfmt v0.4.0/go.mod h1:3RMwSq7FuexP4Kalkev3ejPJsZTpXXBr9+V4qmtdjCk=
+github.com/go-stack/stack v1.8.0/go.mod h1:v0f6uXyyMGvRgIKkXu+yp6POWl0qKG85gN/melR3HDY=
+github.com/gogo/protobuf v1.1.1/go.mod h1:r8qH/GZQm5c6nD/R0oafs1akxWv10x8SbQlK7atdtwQ=
+github.com/golang/protobuf v1.2.0/go.mod h1:6lQm79b+lXiMfvg/cZm0SGofjICqVBUtrP5yJMmIC1U=
+github.com/golang/protobuf v1.3.1/go.mod h1:6lQm79b+lXiMfvg/cZm0SGofjICqVBUtrP5yJMmIC1U=
+github.com/golang/protobuf v1.3.2/go.mod h1:6lQm79b+lXiMfvg/cZm0SGofjICqVBUtrP5yJMmIC1U=
 github.com/google/btree v0.0.0-20180813153112-4030bb1f1f0c/go.mod h1:lNA+9X1NB3Zf8V7Ke586lFgjr2dZNuvo3lPJSGZ5JPQ=
-github.com/google/btree v1.0.0 h1:0udJVsspx3VBr5FwtLhQQtuAsVc79tTq0ocGIPAU6qo=
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-github.com/google/btree v1.0.0/go.mod h1:lNA+9X1NB3Zf8V7Ke586lFgjr2dZNuvo3lPJSGZ5JPQ=
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-github.com/google/uuid v1.3.0/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
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-github.com/hashicorp/consul/api v1.8.1 h1:BOEQaMWoGMhmQ29fC26bi0qb7/rId9JzZP2V0Xmx7m8=
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-github.com/hashicorp/consul/api v1.8.1/go.mod h1:sDjTOq0yUyv5G4h+BqSea7Fn6BU+XbolEz1952UB+mk=
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-github.com/hashicorp/go-cleanhttp v0.5.1 h1:dH3aiDG9Jvb5r5+bYHsikaOUIpcM0xvgMXVoDkXMzJM=
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+golang.org/x/crypto v0.0.0-20180904163835-0709b304e793/go.mod h1:6SG95UA2DQfeDnfUPMdvaQW0Q7yPrPDi9nlGo2tz2b4=
 golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
-golang.org/x/crypto v0.0.0-20190923035154-9ee001bba392 h1:ACG4HJsFiNMf47Y4PeRoebLNy/2lXT9EtprMuTFWt1M=
 golang.org/x/crypto v0.0.0-20190923035154-9ee001bba392/go.mod h1:/lpIB1dKB+9EgE3H3cr1v9wB50oz8l4C4h62xy7jSTY=
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 golang.org/x/net v0.0.0-20190404232315-eb5bcb51f2a3/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
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 golang.org/x/net v0.0.0-20190620200207-3b0461eec859/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
 golang.org/x/net v0.0.0-20190923162816-aa69164e4478/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
-golang.org/x/net v0.0.0-20210510120150-4163338589ed h1:p9UgmWI9wKpfYmgaV/IZKGdXc5qEK45tDwwwDyjS26I=
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-golang.org/x/net v0.0.0-20210510120150-4163338589ed/go.mod h1:9nx3DQGgdP8bBQD5qxJ1jj9UTztislL4KSBs9R2vV5Y=
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 golang.org/x/sync v0.0.0-20181221193216-37e7f081c4d4/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
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+google.golang.org/protobuf v1.36.5 h1:tPhr+woSbjfYvY6/GPufUoYizxw1cF/yFoxJ2fmpwlM=
+google.golang.org/protobuf v1.36.5/go.mod h1:9fA7Ob0pmnwhb644+1+CVWFRbNajQ6iRojtC/QF5bRE=
+gopkg.in/alecthomas/kingpin.v2 v2.2.6/go.mod h1:FMv+mEhP44yOT+4EoQTLFTRgOQ1FBLkstjWtayDeSgw=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
 gopkg.in/check.v1 v1.0.0-20190902080502-41f04d3bba15/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
+gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c h1:Hei/4ADfdWqJk1ZMxUNpqntNwaWcugrBjAiHlqqRiVk=
+gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c/go.mod h1:JHkPIbrfpd72SG/EVd6muEfDQjcINNoR0C8j2r3qZ4Q=
+gopkg.in/yaml.v2 v2.2.1/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gopkg.in/yaml.v2 v2.2.2/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
-gopkg.in/yaml.v2 v2.2.8/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
+gopkg.in/yaml.v2 v2.2.4/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
-gopkg.in/yaml.v2 v2.3.0 h1:clyUAQHOM3G0M3f5vQj7LuJrETvjVot3Z5el9nffUtU=
+gopkg.in/yaml.v2 v2.2.5/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
-gopkg.in/yaml.v2 v2.3.0/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
+gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
+gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=

logger.go

@@ -9,13 +9,11 @@ import (
 	"os"
 
 	hclog "github.com/hashicorp/go-hclog"
-	"github.com/unistack-org/micro/v3/logger"
+	"go.unistack.org/micro/v4/logger"
 )
 
-var (
+// to check implementation
-	// to check implementation
+var _ hclog.Logger = &consulLogger{}
-	_ hclog.Logger = &consulLogger{}
-)
 
 type consulLogger struct {
 	logger logger.Logger
@@ -25,31 +23,49 @@ func (l *consulLogger) Name() string {
 	return l.logger.String()
 }
 
-func (l *consulLogger) With(args ...interface{}) hclog.Logger {
+func (l *consulLogger) GetLevel() hclog.Level {
-	fields := make(map[string]interface{}, int(len(args)/2))
+	switch l.logger.Options().Level {
-	for i := 0; i < int(len(args)/2); i = i + 2 {
+	case logger.DebugLevel:
-		fields[fmt.Sprintf("%v", args[i])] = args[i+1]
+		return hclog.Debug
+	case logger.TraceLevel:
+		return hclog.Trace
+	case logger.InfoLevel:
+		return hclog.Info
+	case logger.WarnLevel:
+		return hclog.Warn
+	case logger.ErrorLevel:
+		return hclog.Error
+	default:
+		return hclog.Info
 	}
-	return &consulLogger{logger: l.logger.Fields(fields)}
+}
+
+func (l *consulLogger) With(args ...interface{}) hclog.Logger {
+	fields := make([]interface{}, len(args))
+	for i := 0; i < int(len(args)/2); i += 2 {
+		fields = append(fields, fmt.Sprintf("%v", args[i]), args[i+1])
+	}
+	return &consulLogger{logger: l.logger.Fields(fields...)}
 }
 
 func (l *consulLogger) Debug(format string, msg ...interface{}) {
-	l.logger.Debugf(context.TODO(), format, msg...)
+	l.logger.Debug(context.TODO(), fmt.Sprintf(format, msg...))
 }
 
 func (l *consulLogger) Error(format string, msg ...interface{}) {
-	l.logger.Errorf(context.TODO(), format, msg...)
+	l.logger.Error(context.TODO(), fmt.Sprintf(format, msg...))
 }
 
 func (l *consulLogger) Info(format string, msg ...interface{}) {
-	l.logger.Infof(context.TODO(), format, msg...)
+	l.logger.Info(context.TODO(), fmt.Sprintf(format, msg...))
 }
 
 func (l *consulLogger) Warn(format string, msg ...interface{}) {
-	l.logger.Warnf(context.TODO(), format, msg...)
+	l.logger.Warn(context.TODO(), fmt.Sprintf(format, msg...))
 }
+
 func (l *consulLogger) Trace(format string, msg ...interface{}) {
-	l.logger.Tracef(context.TODO(), format, msg...)
+	l.logger.Trace(context.TODO(), fmt.Sprintf(format, msg...))
 }
 
 func (l *consulLogger) ImpliedArgs() []interface{} {
@@ -62,16 +78,25 @@ func (l *consulLogger) ImpliedArgs() []interface{} {
 
 func (l *consulLogger) Named(name string) hclog.Logger {
 	var newname string
-	if oldname, ok := l.logger.Options().Fields["name"]; ok {
+	var oldname string
+
+	fields := l.logger.Options().Fields
+	for i := 0; i < len(fields); i += 2 {
+		if fields[i].(string) == "name" {
+			oldname = fields[i+1].(string)
+		}
+	}
+
+	if len(oldname) > 0 {
 		newname = fmt.Sprintf("%s.%s", oldname, name)
 	} else {
-		newname = fmt.Sprintf("%s", name)
+		newname = name
 	}
-	return &consulLogger{logger: l.logger.Fields(map[string]interface{}{"name": newname})}
+	return &consulLogger{logger: l.logger.Clone(logger.WithFields("name", newname))}
 }
 
 func (l *consulLogger) ResetNamed(name string) hclog.Logger {
-	return &consulLogger{logger: l.logger.Fields(map[string]interface{}{"name": name})}
+	return &consulLogger{logger: l.logger.Clone(logger.WithFields("name", name))}
 }
 
 func (l *consulLogger) SetLevel(level hclog.Level) {

options.go

@@ -4,7 +4,7 @@ import (
 	"time"
 
 	"github.com/hashicorp/consul/api"
-	"github.com/unistack-org/micro/v3/config"
+	"go.unistack.org/micro/v4/config"
 )
 
 type configKey struct{}
@@ -44,3 +44,15 @@ type timeoutKey struct{}
 func Timeout(td time.Duration) config.Option {
 	return config.SetOption(timeoutKey{}, td)
 }
+
+func LoadPath(path string) config.LoadOption {
+	return config.SetLoadOption(pathKey{}, path)
+}
+
+func SavePath(path string) config.SaveOption {
+	return config.SetSaveOption(pathKey{}, path)
+}
+
+func WatchPath(path string) config.WatchOption {
+	return config.SetWatchOption(pathKey{}, path)
+}

watcher.go

@@ -0,0 +1,103 @@
+package consul
+
+import (
+	"fmt"
+	"reflect"
+
+	"github.com/hashicorp/consul/api"
+	"go.unistack.org/micro/v4/config"
+	"go.unistack.org/micro/v4/util/jitter"
+	rutil "go.unistack.org/micro/v4/util/reflect"
+)
+
+type consulWatcher struct {
+	cli   *api.Client
+	path  string
+	opts  config.Options
+	wopts config.WatchOptions
+	done  chan struct{}
+	vchan chan map[string]interface{}
+	echan chan error
+}
+
+func (w *consulWatcher) run() {
+	ticker := jitter.NewTicker(w.wopts.MinInterval, w.wopts.MaxInterval)
+	defer ticker.Stop()
+
+	src := w.opts.Struct
+	if w.wopts.Struct != nil {
+		src = w.wopts.Struct
+	}
+
+	for {
+		select {
+		case <-w.done:
+			return
+		case <-ticker.C:
+			dst, err := rutil.Zero(src)
+			if err != nil {
+				w.echan <- err
+				return
+			}
+
+			pair, _, err := w.cli.KV().Get(w.path, nil)
+			if err != nil {
+				w.echan <- err
+				return
+			}
+
+			if pair == nil {
+				w.echan <- fmt.Errorf("consul path %s not found", w.path)
+				return
+			}
+
+			err = w.opts.Codec.Unmarshal(pair.Value, dst)
+			if err != nil {
+				w.echan <- err
+				return
+			}
+
+			srcmp, err := rutil.StructFieldsMap(src)
+			if err != nil {
+				w.echan <- err
+				return
+			}
+
+			dstmp, err := rutil.StructFieldsMap(dst)
+			if err != nil {
+				w.echan <- err
+				return
+			}
+
+			for sk, sv := range srcmp {
+				if reflect.DeepEqual(dstmp[sk], sv) {
+					delete(dstmp, sk)
+				}
+			}
+			if len(dstmp) > 0 {
+				w.vchan <- dstmp
+				src = dst
+			}
+		}
+	}
+}
+
+func (w *consulWatcher) Next() (map[string]interface{}, error) {
+	select {
+	case <-w.done:
+		break
+	case err := <-w.echan:
+		return nil, err
+	case v, ok := <-w.vchan:
+		if !ok {
+			break
+		}
+		return v, nil
+	}
+	return nil, config.ErrWatcherStopped
+}
+
+func (w *consulWatcher) Stop() error {
+	close(w.done)
+	return nil
+}