diff --git a/Gopkg.lock b/Gopkg.lock index 4d34a23d829..4e4bfd9a869 100644 --- a/Gopkg.lock +++ b/Gopkg.lock @@ -722,6 +722,14 @@ pruneopts = "NUT" revision = "d2e6202438beef2727060aa7cabdd924d92ebfd9" +[[projects]] + branch = "master" + digest = "1:39ebcc2b11457b703ae9ee2e8cca0f68df21969c6102cb3b705f76cca0ea0239" + name = "golang.org/x/sync" + packages = ["errgroup"] + pruneopts = "NUT" + revision = "1d60e4601c6fd243af51cc01ddf169918a5407ca" + [[projects]] branch = "master" digest = "1:581828cee9f0d31195c1ae52ea8935dfaec395cee6c23adc02109b892b391c2e" @@ -1180,6 +1188,7 @@ "golang.org/x/crypto/ssh/terminal", "golang.org/x/oauth2", "golang.org/x/oauth2/google", + "golang.org/x/sync/errgroup", "google.golang.org/api/cloudbuild/v1", "google.golang.org/api/googleapi", "google.golang.org/api/iterator", @@ -1194,6 +1203,7 @@ "k8s.io/apimachinery/pkg/api/meta", "k8s.io/apimachinery/pkg/apis/meta/v1", "k8s.io/apimachinery/pkg/fields", + "k8s.io/apimachinery/pkg/labels", "k8s.io/apimachinery/pkg/runtime", "k8s.io/apimachinery/pkg/runtime/schema", "k8s.io/apimachinery/pkg/types", diff --git a/cmd/skaffold/app/cmd/fix.go b/cmd/skaffold/app/cmd/fix.go index 1a6d7f1335c..9831f3c3574 100644 --- a/cmd/skaffold/app/cmd/fix.go +++ b/cmd/skaffold/app/cmd/fix.go @@ -22,12 +22,13 @@ import ( "github.com/GoogleContainerTools/skaffold/pkg/skaffold/color" "github.com/GoogleContainerTools/skaffold/pkg/skaffold/schema" + "github.com/GoogleContainerTools/skaffold/pkg/skaffold/schema/latest" schemautil "github.com/GoogleContainerTools/skaffold/pkg/skaffold/schema/util" + "github.com/pkg/errors" "github.com/sirupsen/logrus" "github.com/spf13/cobra" yaml "gopkg.in/yaml.v2" - "k8s.io/client-go/tools/clientcmd/api/latest" ) func NewCmdFix(out io.Writer) *cobra.Command { diff --git a/integration/examples/hot-reload/node/Dockerfile b/integration/examples/hot-reload/node/Dockerfile new file mode 100644 index 00000000000..c248d57ffe2 --- /dev/null +++ b/integration/examples/hot-reload/node/Dockerfile @@ -0,0 +1,3 @@ +FROM gcr.io/k8s-skaffold/nodemon +CMD ["nodemon","--legacy-watch", "server.js"] +COPY *.js . diff --git a/integration/examples/hot-reload/node/k8s/pod.yaml b/integration/examples/hot-reload/node/k8s/pod.yaml new file mode 100644 index 00000000000..8fe53e3720e --- /dev/null +++ b/integration/examples/hot-reload/node/k8s/pod.yaml @@ -0,0 +1,10 @@ +apiVersion: v1 +kind: Pod +metadata: + name: node +spec: + containers: + - name: node + image: gcr.io/k8s-skaffold/node-example + ports: + - containerPort: 3000 diff --git a/integration/examples/hot-reload/node/package-lock.json b/integration/examples/hot-reload/node/package-lock.json new file mode 100644 index 00000000000..c9661cb9950 --- /dev/null +++ b/integration/examples/hot-reload/node/package-lock.json @@ -0,0 +1,2316 @@ +{ + "requires": true, + "lockfileVersion": 1, + "dependencies": { + "abbrev": { + "version": "1.1.1", + "resolved": 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"version": "2.1.2", + "resolved": "https://registry.npmjs.org/yallist/-/yallist-2.1.2.tgz", + "integrity": "sha1-HBH5IY8HYImkfdUS+TxmmaaoHVI=" + } + } +} diff --git a/integration/examples/hot-reload/node/server.js b/integration/examples/hot-reload/node/server.js new file mode 100644 index 00000000000..5115ab9cd63 --- /dev/null +++ b/integration/examples/hot-reload/node/server.js @@ -0,0 +1,14 @@ +const http = require('http'); + +const hostname = '127.0.0.1'; +const port = 3000; + +const server = http.createServer((req, res) => { + res.statusCode = 200; + res.setHeader('Content-Type', 'text/plain'); + res.end('Hello World from Node!\n'); +}); + +server.listen(port, hostname, () => { + console.log(`Node server running at http://${hostname}:${port}/`); +}); \ No newline at end of file diff --git a/integration/examples/hot-reload/python/Dockerfile b/integration/examples/hot-reload/python/Dockerfile new file mode 100644 index 00000000000..84ba519f0bf --- /dev/null +++ b/integration/examples/hot-reload/python/Dockerfile @@ -0,0 +1,9 @@ +FROM python:3.7-slim +CMD ["python", "-m", "flask", "run"] +ENV FLASK_DEBUG=1 +ENV FLASK_APP=app.py + +COPY requirements.txt . +RUN pip install -r requirements.txt +COPY *.py . + diff --git a/integration/examples/hot-reload/python/app.py b/integration/examples/hot-reload/python/app.py new file mode 100644 index 00000000000..be4bff4ac5b --- /dev/null +++ b/integration/examples/hot-reload/python/app.py @@ -0,0 +1,6 @@ +from flask import Flask +app = Flask(__name__) + +@app.route('/') +def hello_world(): + return 'Hello, World from Flask!' \ No newline at end of file diff --git a/integration/examples/hot-reload/python/k8s/pod.yaml b/integration/examples/hot-reload/python/k8s/pod.yaml new file mode 100644 index 00000000000..54634a5c217 --- /dev/null +++ b/integration/examples/hot-reload/python/k8s/pod.yaml @@ -0,0 +1,10 @@ +apiVersion: v1 +kind: Pod +metadata: + name: python +spec: + containers: + - name: python + image: gcr.io/k8s-skaffold/python-reload + ports: + - containerPort: 5000 diff --git a/integration/examples/hot-reload/python/requirements.txt b/integration/examples/hot-reload/python/requirements.txt new file mode 100644 index 00000000000..2c34d09e113 --- /dev/null +++ b/integration/examples/hot-reload/python/requirements.txt @@ -0,0 +1 @@ +Flask==1.0 \ No newline at end of file diff --git a/integration/examples/hot-reload/skaffold.yaml b/integration/examples/hot-reload/skaffold.yaml new file mode 100644 index 00000000000..4daf1c6fba1 --- /dev/null +++ b/integration/examples/hot-reload/skaffold.yaml @@ -0,0 +1,16 @@ +apiVersion: skaffold/v1alpha4 +kind: Config +build: + artifacts: + - image: gcr.io/k8s-skaffold/node-example + context: node + sync: + '*.js': . + - image: gcr.io/k8s-skaffold/python-reload + context: python + sync: + '*.py': . +deploy: + kubectl: + manifests: + - "**/k8s" diff --git a/pkg/skaffold/kubernetes/sync.go b/pkg/skaffold/kubernetes/sync.go new file mode 100644 index 00000000000..511f35563b2 --- /dev/null +++ b/pkg/skaffold/kubernetes/sync.go @@ -0,0 +1,93 @@ +/* +Copyright 2018 The Skaffold Authors + +Licensed under the Apache License, Version 2.0 (the "License"); +you may not use this file except in compliance with the License. +You may obtain a copy of the License at + + http://www.apache.org/licenses/LICENSE-2.0 + +Unless required by applicable law or agreed to in writing, software +distributed under the License is distributed on an "AS IS" BASIS, +WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +See the License for the specific language governing permissions and +limitations under the License. +*/ + +package kubernetes + +import ( + "fmt" + "os/exec" + "strings" + + "github.com/GoogleContainerTools/skaffold/pkg/skaffold/constants" + "github.com/GoogleContainerTools/skaffold/pkg/skaffold/sync" + "github.com/GoogleContainerTools/skaffold/pkg/skaffold/util" + "github.com/sirupsen/logrus" + "golang.org/x/sync/errgroup" + + "github.com/pkg/errors" + "k8s.io/api/core/v1" + meta_v1 "k8s.io/apimachinery/pkg/apis/meta/v1" +) + +type KubectlSyncer struct{} + +func (k *KubectlSyncer) Sync(s *sync.Item) error { + if err := perform(s.Image, s.Copy, copyFileFn); err != nil { + return errors.Wrap(err, "copying files") + } + if err := perform(s.Image, s.Delete, deleteFileFn); err != nil { + return errors.Wrap(err, "deleting files") + } + return nil +} + +func deleteFileFn(pod v1.Pod, container v1.Container, src, dst string) *exec.Cmd { + return exec.Command("kubectl", "exec", pod.Name, "--namespace", pod.Namespace, "-c", container.Name, "--", "rm", "-rf", dst) +} + +func copyFileFn(pod v1.Pod, container v1.Container, src, dst string) *exec.Cmd { + return exec.Command("kubectl", "cp", src, fmt.Sprintf("%s/%s:%s", pod.Namespace, pod.Name, dst), "-c", container.Name) +} + +func labelSelector() string { + var reqs []string + for k, v := range constants.Labels.DefaultLabels { + reqs = append(reqs, fmt.Sprintf("%s=%s", k, v)) + } + return strings.Join(reqs, ",") +} + +func perform(image string, files map[string]string, cmdFn func(v1.Pod, v1.Container, string, string) *exec.Cmd) error { + logrus.Info("Syncing files:", files) + client, err := Client() + if err != nil { + return errors.Wrap(err, "getting k8s client") + } + pods, err := client.CoreV1().Pods("").List(meta_v1.ListOptions{ + LabelSelector: labelSelector(), + }) + if err != nil { + return errors.Wrap(err, "getting pods") + } + for _, p := range pods.Items { + for _, c := range p.Spec.Containers { + if c.Image == image { + var e errgroup.Group + for src, dst := range files { + src, dst := src, dst + e.Go(func() error { + cmd := cmdFn(p, c, src, dst) + return util.RunCmd(cmd) + }) + } + if err := e.Wait(); err != nil { + return errors.Wrap(err, "syncing files") + } + } + } + } + return nil +} diff --git a/pkg/skaffold/kubernetes/sync_test.go b/pkg/skaffold/kubernetes/sync_test.go new file mode 100644 index 00000000000..2cc70021dc0 --- /dev/null +++ b/pkg/skaffold/kubernetes/sync_test.go @@ -0,0 +1,132 @@ +/* +Copyright 2018 The Skaffold Authors + +Licensed under the Apache License, Version 2.0 (the "License"); +you may not use this file except in compliance with the License. +You may obtain a copy of the License at + + http://www.apache.org/licenses/LICENSE-2.0 + +Unless required by applicable law or agreed to in writing, software +distributed under the License is distributed on an "AS IS" BASIS, +WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +See the License for the specific language governing permissions and +limitations under the License. +*/ + +package kubernetes + +import ( + "fmt" + "os/exec" + "strings" + "testing" + + metav1 "k8s.io/apimachinery/pkg/apis/meta/v1" + "k8s.io/client-go/kubernetes/fake" + + "github.com/GoogleContainerTools/skaffold/pkg/skaffold/constants" + "github.com/GoogleContainerTools/skaffold/pkg/skaffold/util" + "github.com/GoogleContainerTools/skaffold/testutil" + v1 "k8s.io/api/core/v1" + "k8s.io/client-go/kubernetes" +) + +type TestCmdRecorder struct { + cmds []string + err error +} + +func (t *TestCmdRecorder) RunCmd(cmd *exec.Cmd) error { + if t.err != nil { + return t.err + } + t.cmds = append(t.cmds, strings.Join(cmd.Args, " ")) + return nil +} + +func (t *TestCmdRecorder) RunCmdOut(cmd *exec.Cmd) ([]byte, error) { + return nil, t.RunCmd(cmd) +} + +func fakeCmd(p v1.Pod, c v1.Container, src, dst string) *exec.Cmd { + return exec.Command("copy", src, dst) +} + +var pod = &v1.Pod{ + ObjectMeta: metav1.ObjectMeta{ + Name: "podname", + Labels: constants.Labels.DefaultLabels, + }, + Status: v1.PodStatus{ + Phase: v1.PodRunning, + }, + Spec: v1.PodSpec{ + Containers: []v1.Container{ + { + Name: "container_name", + Image: "gcr.io/k8s-skaffold:123", + }, + }, + }, +} + +func TestPerform(t *testing.T) { + var tests = []struct { + description string + image string + files map[string]string + cmdFn func(v1.Pod, v1.Container, string, string) *exec.Cmd + cmdErr error + clientErr error + expected []string + shouldErr bool + }{ + { + description: "no error", + image: "gcr.io/k8s-skaffold:123", + files: map[string]string{"test.go": "/test.go"}, + cmdFn: fakeCmd, + expected: []string{"copy test.go /test.go"}, + }, + { + description: "cmd error", + image: "gcr.io/k8s-skaffold:123", + files: map[string]string{"test.go": "/test.go"}, + cmdFn: fakeCmd, + cmdErr: fmt.Errorf(""), + shouldErr: true, + }, + { + description: "client error", + image: "gcr.io/k8s-skaffold:123", + files: map[string]string{"test.go": "/test.go"}, + cmdFn: fakeCmd, + clientErr: fmt.Errorf(""), + shouldErr: true, + }, + { + description: "no copy", + image: "gcr.io/different-pod:123", + files: map[string]string{"test.go": "/test.go"}, + cmdFn: fakeCmd, + }, + } + + for _, test := range tests { + t.Run(test.description, func(t *testing.T) { + cmdRecord := &TestCmdRecorder{err: test.cmdErr} + defer func(c util.Command) { util.DefaultExecCommand = c }(util.DefaultExecCommand) + util.DefaultExecCommand = cmdRecord + + defer func(c func() (kubernetes.Interface, error)) { Client = c }(GetClientset) + Client = func() (kubernetes.Interface, error) { + return fake.NewSimpleClientset(pod), test.clientErr + } + + util.DefaultExecCommand = cmdRecord + err := perform(test.image, test.files, test.cmdFn) + testutil.CheckErrorAndDeepEqual(t, test.shouldErr, err, test.expected, cmdRecord.cmds) + }) + } +} diff --git a/pkg/skaffold/runner/changes.go b/pkg/skaffold/runner/changes.go index e33137564fd..d62bf6f2347 100644 --- a/pkg/skaffold/runner/changes.go +++ b/pkg/skaffold/runner/changes.go @@ -18,20 +18,40 @@ package runner import ( "github.com/GoogleContainerTools/skaffold/pkg/skaffold/schema/latest" + "github.com/GoogleContainerTools/skaffold/pkg/skaffold/sync" + "github.com/GoogleContainerTools/skaffold/pkg/skaffold/watch" ) type changes struct { - dirtyArtifacts []*latest.Artifact + dirtyArtifacts []*artifactChange + needsRebuild []*latest.Artifact + needsResync []*sync.Item needsRedeploy bool needsReload bool } -func (c *changes) Add(a *latest.Artifact) { - c.dirtyArtifacts = append(c.dirtyArtifacts, a) +type artifactChange struct { + artifact *latest.Artifact + events watch.Events +} + +func (c *changes) AddDirtyArtifact(a *latest.Artifact, e watch.Events) { + c.dirtyArtifacts = append(c.dirtyArtifacts, &artifactChange{artifact: a, events: e}) +} + +func (c *changes) AddRebuild(a *latest.Artifact) { + c.needsRebuild = append(c.needsRebuild, a) +} + +func (c *changes) AddResync(s *sync.Item) { + c.needsResync = append(c.needsResync, s) } func (c *changes) reset() { c.dirtyArtifacts = nil + c.needsRebuild = nil + c.needsResync = nil + c.needsRedeploy = false c.needsReload = false } diff --git a/pkg/skaffold/runner/runner.go b/pkg/skaffold/runner/runner.go index ad461cc5cfa..e9aac715715 100644 --- a/pkg/skaffold/runner/runner.go +++ b/pkg/skaffold/runner/runner.go @@ -36,6 +36,7 @@ import ( "github.com/GoogleContainerTools/skaffold/pkg/skaffold/kubernetes" kubectx "github.com/GoogleContainerTools/skaffold/pkg/skaffold/kubernetes/context" "github.com/GoogleContainerTools/skaffold/pkg/skaffold/schema/latest" + "github.com/GoogleContainerTools/skaffold/pkg/skaffold/sync" "github.com/GoogleContainerTools/skaffold/pkg/skaffold/test" "github.com/GoogleContainerTools/skaffold/pkg/skaffold/watch" @@ -53,6 +54,7 @@ type SkaffoldRunner struct { test.Tester tag.Tagger watch.Trigger + sync.Syncer opts *config.SkaffoldOptions watchFactory watch.Factory @@ -104,6 +106,7 @@ func NewForConfig(opts *config.SkaffoldOptions, cfg *latest.SkaffoldConfig) (*Sk Deployer: deployer, Tagger: tagger, Trigger: trigger, + Syncer: &kubernetes.KubectlSyncer{}, opts: opts, watchFactory: watch.NewWatcher, }, nil @@ -249,13 +252,34 @@ func (r *SkaffoldRunner) Dev(ctx context.Context, out io.Writer, artifacts []*la logger.Unmute() } }() + for _, a := range changed.dirtyArtifacts { + s, err := sync.NewItem(a.artifact, a.events, r.builds) + if err != nil { + return errors.Wrap(err, "sync") + } + if s != nil { + changed.AddResync(s) + } + if s == nil { + changed.AddRebuild(a.artifact) + } + } switch { case changed.needsReload: logger.Stop() return ErrorConfigurationChanged - case len(changed.dirtyArtifacts) > 0: - bRes, err := r.Build(ctx, out, r.Tagger, changed.dirtyArtifacts) + case len(changed.needsResync) > 0: + for _, s := range changed.needsResync { + if err := r.Syncer.Sync(s); err != nil { + logrus.Warnln("Skipping build and deploy due to sync error:", err) + return nil + } + logrus.Infof("Synced %d files for %s", len(s.Copy)+len(s.Delete), s.Image) + logrus.Debugf("Synced files for %s...\nCopied: %s\nDeleted: %s\n", s.Image, s.Copy, s.Delete) + } + case len(changed.needsRebuild) > 0: + bRes, err := r.Build(ctx, out, r.Tagger, changed.needsRebuild) if err != nil { logrus.Warnln("Skipping Deploy due to build error:", err) return nil @@ -298,7 +322,7 @@ func (r *SkaffoldRunner) Dev(ctx context.Context, out io.Writer, artifacts []*la if err := watcher.Register( func() ([]string, error) { return dependenciesForArtifact(artifact) }, - func(watch.Events) { changed.Add(artifact) }, + func(e watch.Events) { changed.AddDirtyArtifact(artifact, e) }, ); err != nil { return nil, errors.Wrapf(err, "watching files for artifact %s", artifact.ImageName) } diff --git a/pkg/skaffold/runner/runner_test.go b/pkg/skaffold/runner/runner_test.go index f0634988d25..8ab01d131a1 100644 --- a/pkg/skaffold/runner/runner_test.go +++ b/pkg/skaffold/runner/runner_test.go @@ -30,6 +30,7 @@ import ( "github.com/GoogleContainerTools/skaffold/pkg/skaffold/deploy" "github.com/GoogleContainerTools/skaffold/pkg/skaffold/kubernetes" "github.com/GoogleContainerTools/skaffold/pkg/skaffold/schema/latest" + "github.com/GoogleContainerTools/skaffold/pkg/skaffold/sync" "github.com/GoogleContainerTools/skaffold/pkg/skaffold/test" "github.com/GoogleContainerTools/skaffold/pkg/skaffold/watch" "github.com/GoogleContainerTools/skaffold/testutil" @@ -110,6 +111,31 @@ func (t *TestDeployer) Cleanup(ctx context.Context, out io.Writer) error { return nil } +type TestSyncer struct { + err error + copies map[string]string + deletes []string +} + +func NewTestSyncer() *TestSyncer { + return &TestSyncer{ + copies: map[string]string{}, + } +} + +func (t *TestSyncer) Sync(s *sync.Item) error { + if t.err != nil { + return t.err + } + for src, dst := range s.Copy { + t.copies[src] = dst + } + for _, dst := range s.Delete { + t.deletes = append(t.deletes, dst) + } + return nil +} + func resetClient() { kubernetes.Client = kubernetes.GetClientset } func fakeGetClient() (clientgo.Interface, error) { return fake.NewSimpleClientset(), nil } @@ -420,6 +446,7 @@ func TestDev(t *testing.T) { Trigger: trigger, watchFactory: test.watcherFactory, opts: opts, + Syncer: NewTestSyncer(), } _, err := runner.Dev(context.Background(), ioutil.Discard, nil) @@ -450,6 +477,7 @@ func TestBuildAndDeployAllArtifacts(t *testing.T) { Deployer: deployer, Trigger: trigger, opts: opts, + Syncer: NewTestSyncer(), } ctx := context.Background() diff --git a/pkg/skaffold/schema/latest/config.go b/pkg/skaffold/schema/latest/config.go index c9f7efbc1a8..02aa6c3faf4 100644 --- a/pkg/skaffold/schema/latest/config.go +++ b/pkg/skaffold/schema/latest/config.go @@ -210,8 +210,9 @@ type HelmConventionConfig struct { // Artifact represents items that need to be built, along with the context in which // they should be built. type Artifact struct { - ImageName string `yaml:"image"` - Workspace string `yaml:"context,omitempty"` + ImageName string `yaml:"image"` + Workspace string `yaml:"context,omitempty"` + Sync map[string]string `yaml:"sync,omitempty"` ArtifactType `yaml:",inline"` } diff --git a/pkg/skaffold/sync/sync.go b/pkg/skaffold/sync/sync.go new file mode 100644 index 00000000000..d53ab842b0b --- /dev/null +++ b/pkg/skaffold/sync/sync.go @@ -0,0 +1,108 @@ +/* +Copyright 2018 The Skaffold Authors + +Licensed under the Apache License, Version 2.0 (the "License"); +you may not use this file except in compliance with the License. +You may obtain a copy of the License at + + http://www.apache.org/licenses/LICENSE-2.0 + +Unless required by applicable law or agreed to in writing, software +distributed under the License is distributed on an "AS IS" BASIS, +WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +See the License for the specific language governing permissions and +limitations under the License. +*/ + +package sync + +import ( + "fmt" + "path" + "path/filepath" + + "github.com/GoogleContainerTools/skaffold/pkg/skaffold/build" + "github.com/GoogleContainerTools/skaffold/pkg/skaffold/schema/latest" + "github.com/GoogleContainerTools/skaffold/pkg/skaffold/util" + "github.com/GoogleContainerTools/skaffold/pkg/skaffold/watch" + "github.com/pkg/errors" +) + +type Syncer interface { + Sync(s *Item) error +} + +type Item struct { + Image string + Copy map[string]string + Delete map[string]string +} + +func NewItem(a *latest.Artifact, e watch.Events, builds []build.Artifact) (*Item, error) { + // If there are no changes, short circuit and don't sync anything + if !e.HasChanged() || a.Sync == nil || len(a.Sync) == 0 { + return nil, nil + } + + toCopy, err := intersect(a.Workspace, a.Sync, append(e.Added, e.Modified...)) + if err != nil { + return nil, errors.Wrap(err, "intersecting sync map and added, modified files") + } + + toDelete, err := intersect(a.Workspace, a.Sync, e.Deleted) + if err != nil { + return nil, errors.Wrap(err, "intersecting sync map and added, modified files") + } + + if toCopy == nil || toDelete == nil { + return nil, nil + } + + tag := latestTag(a.ImageName, builds) + if tag == "" { + return nil, fmt.Errorf("Could not find latest tag for image %s in builds: %s", a.ImageName, builds) + } + + return &Item{ + Image: tag, + Copy: toCopy, + Delete: toDelete, + }, nil +} + +func latestTag(image string, builds []build.Artifact) string { + for _, build := range builds { + if build.ImageName == image { + return build.Tag + } + } + return "" +} + +func intersect(context string, syncMap map[string]string, files []string) (map[string]string, error) { + ret := map[string]string{} + for _, f := range files { + relPath, err := filepath.Rel(context, f) + if err != nil { + return nil, errors.Wrapf(err, "changed file %s can't be found relative to context %s", f, context) + } + for p, dst := range syncMap { + match, err := filepath.Match(p, relPath) + if err != nil { + return nil, errors.Wrapf(err, "pattern error for %s", relPath) + } + if !match { + return nil, nil + } + // If the source has special match characters, + // the destination must be a directory + // The path package must be used here, since the destination is always + // a linux filesystem. + if util.HasMeta(p) { + dst = path.Join(dst, filepath.Base(relPath)) + } + ret[f] = dst + } + } + return ret, nil +} diff --git a/pkg/skaffold/sync/sync_test.go b/pkg/skaffold/sync/sync_test.go new file mode 100644 index 00000000000..ea310375177 --- /dev/null +++ b/pkg/skaffold/sync/sync_test.go @@ -0,0 +1,233 @@ +/* +Copyright 2018 The Skaffold Authors + +Licensed under the Apache License, Version 2.0 (the "License"); +you may not use this file except in compliance with the License. +You may obtain a copy of the License at + + http://www.apache.org/licenses/LICENSE-2.0 + +Unless required by applicable law or agreed to in writing, software +distributed under the License is distributed on an "AS IS" BASIS, +WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +See the License for the specific language governing permissions and +limitations under the License. +*/ +package sync + +import ( + "path/filepath" + "testing" + + "github.com/GoogleContainerTools/skaffold/pkg/skaffold/build" + "github.com/GoogleContainerTools/skaffold/pkg/skaffold/schema/latest" + + "github.com/GoogleContainerTools/skaffold/pkg/skaffold/watch" + "github.com/GoogleContainerTools/skaffold/testutil" +) + +func TestNewSyncItem(t *testing.T) { + var tests = []struct { + description string + artifact *latest.Artifact + evt watch.Events + builds []build.Artifact + shouldErr bool + expected *Item + }{ + { + description: "match copy", + artifact: &latest.Artifact{ + ImageName: "test", + Sync: map[string]string{ + "*.html": ".", + }, + Workspace: ".", + }, + builds: []build.Artifact{ + { + ImageName: "test", + Tag: "test:123", + }, + }, + evt: watch.Events{ + Added: []string{"index.html"}, + }, + expected: &Item{ + Image: "test:123", + Copy: map[string]string{ + "index.html": "index.html", + }, + Delete: map[string]string{}, + }, + }, + { + description: "no tag for image", + artifact: &latest.Artifact{ + ImageName: "notbuildyet", + Sync: map[string]string{ + "*.html": ".", + }, + Workspace: ".", + }, + builds: []build.Artifact{ + { + ImageName: "test", + Tag: "test:123", + }, + }, + evt: watch.Events{ + Added: []string{"index.html"}, + }, + shouldErr: true, + }, + { + description: "sync all", + artifact: &latest.Artifact{ + ImageName: "test", + Sync: map[string]string{ + "*": ".", + }, + Workspace: "node", + }, + builds: []build.Artifact{ + { + ImageName: "test", + Tag: "test:123", + }, + }, + evt: watch.Events{ + Added: []string{filepath.Join("node", "index.html")}, + Modified: []string{filepath.Join("node", "server.js")}, + Deleted: []string{filepath.Join("node", "package.json")}, + }, + expected: &Item{ + Image: "test:123", + Copy: map[string]string{ + filepath.Join("node", "server.js"): "server.js", + filepath.Join("node", "index.html"): "index.html", + }, + Delete: map[string]string{ + filepath.Join("node", "package.json"): "package.json", + }, + }, + }, + { + description: "not copy syncable", + artifact: &latest.Artifact{ + Sync: map[string]string{ + "*.html": ".", + }, + Workspace: ".", + }, + evt: watch.Events{ + Added: []string{"main.go"}, + Deleted: []string{"index.html"}, + }, + }, + { + description: "not delete syncable", + artifact: &latest.Artifact{ + Sync: map[string]string{ + "*.html": "/static", + }, + Workspace: ".", + }, + evt: watch.Events{ + Added: []string{"index.html"}, + Deleted: []string{"some/other/file"}, + }, + }, + { + description: "err bad pattern", + artifact: &latest.Artifact{ + Sync: map[string]string{ + "[*.html": "*", + }, + Workspace: ".", + }, + evt: watch.Events{ + Added: []string{"index.html"}, + Deleted: []string{"some/other/file"}, + }, + shouldErr: true, + }, + { + description: "no change no sync", + artifact: &latest.Artifact{ + Sync: map[string]string{ + "*.html": "*", + }, + Workspace: ".", + }, + builds: []build.Artifact{ + { + ImageName: "test", + Tag: "test:123", + }, + }, + }, + } + + for _, test := range tests { + t.Run(test.description, func(t *testing.T) { + actual, err := NewItem(test.artifact, test.evt, test.builds) + testutil.CheckErrorAndDeepEqual(t, test.shouldErr, err, test.expected, actual) + }) + } + +} + +func TestIntersect(t *testing.T) { + var tests = []struct { + description string + syncPatterns map[string]string + files []string + context string + expected map[string]string + shouldErr bool + }{ + { + description: "nil sync patterns doesn't sync", + expected: map[string]string{}, + }, + { + description: "copy nested file to correct destination", + files: []string{filepath.Join("static", "index.html"), filepath.Join("static", "test.html")}, + syncPatterns: map[string]string{ + filepath.Join("static", "*.html"): "/html", + }, + expected: map[string]string{ + filepath.Join("static", "index.html"): "/html/index.html", + filepath.Join("static", "test.html"): "/html/test.html", + }, + }, + { + description: "file not in . copies to correct destination", + files: []string{filepath.Join("node", "server.js")}, + context: "node", + syncPatterns: map[string]string{ + "*.js": "/", + }, + expected: map[string]string{ + filepath.Join("node", "server.js"): "/server.js", + }, + }, + { + description: "file change not relative to context throws error", + files: []string{filepath.Join("node", "server.js"), filepath.Join("/", "something", "test.js")}, + context: "node", + syncPatterns: map[string]string{ + "*.js": "/", + }, + shouldErr: true, + }, + } + + for _, test := range tests { + t.Run(test.description, func(t *testing.T) { + actual, err := intersect(test.context, test.syncPatterns, test.files) + testutil.CheckErrorAndDeepEqual(t, test.shouldErr, err, test.expected, actual) + }) + } +} diff --git a/pkg/skaffold/util/util.go b/pkg/skaffold/util/util.go index 7eade1ac029..28f9fde99bc 100644 --- a/pkg/skaffold/util/util.go +++ b/pkg/skaffold/util/util.go @@ -24,6 +24,7 @@ import ( "os" "path/filepath" "regexp" + "runtime" "sort" "strings" @@ -107,6 +108,17 @@ func ExpandPathsGlob(workingDir string, paths []string) ([]string, error) { return ret, nil } +// HasMeta reports whether path contains any of the magic characters +// recognized by filepath.Match. +// This is a copy of filepath/match.go's hasMeta +func HasMeta(path string) bool { + magicChars := `*?[` + if runtime.GOOS != "windows" { + magicChars = `*?[\` + } + return strings.ContainsAny(path, magicChars) +} + // BoolPtr returns a pointer to a bool func BoolPtr(b bool) *bool { o := b diff --git a/vendor/golang.org/x/sync/AUTHORS b/vendor/golang.org/x/sync/AUTHORS new file mode 100644 index 00000000000..15167cd746c --- /dev/null +++ b/vendor/golang.org/x/sync/AUTHORS @@ -0,0 +1,3 @@ +# This source code refers to The Go Authors for copyright purposes. +# The master list of authors is in the main Go distribution, +# visible at http://tip.golang.org/AUTHORS. diff --git a/vendor/golang.org/x/sync/CONTRIBUTORS b/vendor/golang.org/x/sync/CONTRIBUTORS new file mode 100644 index 00000000000..1c4577e9680 --- /dev/null +++ b/vendor/golang.org/x/sync/CONTRIBUTORS @@ -0,0 +1,3 @@ +# This source code was written by the Go contributors. +# The master list of contributors is in the main Go distribution, +# visible at http://tip.golang.org/CONTRIBUTORS. diff --git a/vendor/golang.org/x/sync/LICENSE b/vendor/golang.org/x/sync/LICENSE new file mode 100644 index 00000000000..6a66aea5eaf --- /dev/null +++ b/vendor/golang.org/x/sync/LICENSE @@ -0,0 +1,27 @@ +Copyright (c) 2009 The Go Authors. All rights reserved. + +Redistribution and use in source and binary forms, with or without +modification, are permitted provided that the following conditions are +met: + + * Redistributions of source code must retain the above copyright +notice, this list of conditions and the following disclaimer. + * Redistributions in binary form must reproduce the above +copyright notice, this list of conditions and the following disclaimer +in the documentation and/or other materials provided with the +distribution. + * Neither the name of Google Inc. nor the names of its +contributors may be used to endorse or promote products derived from +this software without specific prior written permission. + +THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. diff --git a/vendor/golang.org/x/sync/PATENTS b/vendor/golang.org/x/sync/PATENTS new file mode 100644 index 00000000000..733099041f8 --- /dev/null +++ b/vendor/golang.org/x/sync/PATENTS @@ -0,0 +1,22 @@ +Additional IP Rights Grant (Patents) + +"This implementation" means the copyrightable works distributed by +Google as part of the Go project. + +Google hereby grants to You a perpetual, worldwide, non-exclusive, +no-charge, royalty-free, irrevocable (except as stated in this section) +patent license to make, have made, use, offer to sell, sell, import, +transfer and otherwise run, modify and propagate the contents of this +implementation of Go, where such license applies only to those patent +claims, both currently owned or controlled by Google and acquired in +the future, licensable by Google that are necessarily infringed by this +implementation of Go. This grant does not include claims that would be +infringed only as a consequence of further modification of this +implementation. If you or your agent or exclusive licensee institute or +order or agree to the institution of patent litigation against any +entity (including a cross-claim or counterclaim in a lawsuit) alleging +that this implementation of Go or any code incorporated within this +implementation of Go constitutes direct or contributory patent +infringement, or inducement of patent infringement, then any patent +rights granted to you under this License for this implementation of Go +shall terminate as of the date such litigation is filed. diff --git a/vendor/golang.org/x/sync/errgroup/errgroup.go b/vendor/golang.org/x/sync/errgroup/errgroup.go new file mode 100644 index 00000000000..533438d91c1 --- /dev/null +++ b/vendor/golang.org/x/sync/errgroup/errgroup.go @@ -0,0 +1,67 @@ +// Copyright 2016 The Go Authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +// Package errgroup provides synchronization, error propagation, and Context +// cancelation for groups of goroutines working on subtasks of a common task. +package errgroup + +import ( + "sync" + + "golang.org/x/net/context" +) + +// A Group is a collection of goroutines working on subtasks that are part of +// the same overall task. +// +// A zero Group is valid and does not cancel on error. +type Group struct { + cancel func() + + wg sync.WaitGroup + + errOnce sync.Once + err error +} + +// WithContext returns a new Group and an associated Context derived from ctx. +// +// The derived Context is canceled the first time a function passed to Go +// returns a non-nil error or the first time Wait returns, whichever occurs +// first. +func WithContext(ctx context.Context) (*Group, context.Context) { + ctx, cancel := context.WithCancel(ctx) + return &Group{cancel: cancel}, ctx +} + +// Wait blocks until all function calls from the Go method have returned, then +// returns the first non-nil error (if any) from them. +func (g *Group) Wait() error { + g.wg.Wait() + if g.cancel != nil { + g.cancel() + } + return g.err +} + +// Go calls the given function in a new goroutine. +// +// The first call to return a non-nil error cancels the group; its error will be +// returned by Wait. +func (g *Group) Go(f func() error) { + g.wg.Add(1) + + go func() { + defer g.wg.Done() + + if err := f(); err != nil { + g.errOnce.Do(func() { + g.err = err + if g.cancel != nil { + g.cancel() + } + }) + } + }() +}