Ta-Ching ChenandGitHub
93d4b88d84
Before this PR, CLI functions fatal out when encountering error instead of returning it. Such behavior makes it hard to reuse the functions nor writing unit tests. This PR aims to make functions return errors instead of error out.
125 lines
3.3 KiB
Go
125 lines
3.3 KiB
Go
/*
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Copyright 2019 The Fission Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package spec
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import (
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"context"
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"fmt"
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"os"
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"time"
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metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
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fv1 "github.com/fission/fission/pkg/apis/fission.io/v1"
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"github.com/fission/fission/pkg/controller/client"
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"github.com/fission/fission/pkg/types"
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)
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type (
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// packageBuildWatcher is used to watch a set of in-progress builds.
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packageBuildWatcher struct {
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// fission client
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fclient *client.Client
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// set of packages already printed, ensures we don't duplicate the notifications
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finished map[string]bool
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// set of metadata in the app spec. packages outside this set should be ignored.
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pkgMeta map[string]metav1.ObjectMeta
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}
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)
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func makePackageBuildWatcher(fclient *client.Client) *packageBuildWatcher {
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return &packageBuildWatcher{
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fclient: fclient,
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finished: make(map[string]bool),
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pkgMeta: make(map[string]metav1.ObjectMeta),
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}
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}
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func (w *packageBuildWatcher) addPackages(pkgMeta map[string]metav1.ObjectMeta) {
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for k, v := range pkgMeta {
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w.pkgMeta[k] = v
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}
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}
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func (w *packageBuildWatcher) watch(ctx context.Context) {
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for {
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// non-blocking check if we're cancelled
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select {
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case <-ctx.Done():
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return
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default:
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}
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// pull list of packages (TODO: convert to watch)
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pkgs, err := w.fclient.PackageList(metav1.NamespaceAll)
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if err != nil {
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fmt.Printf("Getting list of packages: %v", err)
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os.Exit(1)
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}
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// find packages that (a) are in the app spec and (b) have an interesting
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// build status (either succeeded or failed; not "none")
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keepWaiting := false
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buildpkgs := make([]fv1.Package, 0)
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for _, pkg := range pkgs {
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_, ok := w.pkgMeta[mapKey(&pkg.Metadata)]
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if !ok {
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continue
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}
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if pkg.Status.BuildStatus == types.BuildStatusNone {
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continue
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}
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if pkg.Status.BuildStatus == types.BuildStatusPending ||
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pkg.Status.BuildStatus == types.BuildStatusRunning {
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keepWaiting = true
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}
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buildpkgs = append(buildpkgs, pkg)
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}
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// print package status, and error logs if any
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for _, pkg := range buildpkgs {
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k := pkgKey(&pkg)
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if _, printed := w.finished[k]; printed {
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continue
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}
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if pkg.Status.BuildStatus == types.BuildStatusFailed {
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w.finished[k] = true
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fmt.Printf("--- Build FAILED: ---\n%v\n------\n", pkg.Status.BuildLog)
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} else if pkg.Status.BuildStatus == types.BuildStatusSucceeded {
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w.finished[k] = true
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fmt.Printf("--- Build SUCCEEDED ---\n")
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if len(pkg.Status.BuildLog) > 0 {
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fmt.Printf("%v\n------\n", pkg.Status.BuildLog)
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}
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}
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}
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// if there are no builds running, we can stop polling
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if !keepWaiting {
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return
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}
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time.Sleep(time.Second)
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}
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}
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func pkgKey(pkg *fv1.Package) string {
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// packages are mutable so we want to keep track of them by resource version
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return fmt.Sprintf("%v:%v:%v", pkg.Metadata.Name, pkg.Metadata.Namespace, pkg.Metadata.ResourceVersion)
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}
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