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.
122 lines
2.7 KiB
Go
122 lines
2.7 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 _package
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import (
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"bytes"
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"errors"
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"io"
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"os"
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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/fission-cli/cliwrapper/cli"
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pkgutil "github.com/fission/fission/pkg/fission-cli/cmd/package/util"
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"github.com/fission/fission/pkg/fission-cli/util"
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)
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const (
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deployArchive = iota
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sourceArchive
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)
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type GetSubCommand struct {
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client *client.Client
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name string
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namespace string
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output string
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archiveType int
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}
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func GetSrc(flags cli.Input) error {
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c, err := util.GetServer(flags)
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if err != nil {
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return err
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}
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opts := GetSubCommand{
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client: c,
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archiveType: sourceArchive,
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}
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return opts.do(flags)
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}
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func GetDeploy(flags cli.Input) error {
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c, err := util.GetServer(flags)
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if err != nil {
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return err
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}
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opts := GetSubCommand{
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client: c,
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archiveType: deployArchive,
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}
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return opts.do(flags)
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}
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func (opts *GetSubCommand) do(flags cli.Input) error {
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err := opts.complete(flags)
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if err != nil {
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return err
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}
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return opts.run(flags)
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}
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func (opts *GetSubCommand) complete(flags cli.Input) error {
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opts.name = flags.String("name")
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if len(opts.name) == 0 {
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return errors.New("need name of package, use --name")
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}
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opts.namespace = flags.String("pkgNamespace")
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opts.output = flags.String("output")
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return nil
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}
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func (opts *GetSubCommand) run(flags cli.Input) error {
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pkg, err := opts.client.PackageGet(&metav1.ObjectMeta{
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Namespace: opts.namespace,
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Name: opts.name,
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})
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if err != nil {
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return err
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}
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var reader io.Reader
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archive := pkg.Spec.Source
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if opts.archiveType == deployArchive {
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archive = pkg.Spec.Deployment
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}
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if pkg.Spec.Deployment.Type == fv1.ArchiveTypeLiteral {
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reader = bytes.NewReader(archive.Literal)
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} else if pkg.Spec.Deployment.Type == fv1.ArchiveTypeUrl {
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readCloser, err := pkgutil.DownloadStoragesvcURL(opts.client, archive.URL)
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if err != nil {
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return err
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}
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defer readCloser.Close()
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reader = readCloser
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}
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if len(opts.output) > 0 {
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return pkgutil.WriteArchiveToFile(opts.output, reader)
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} else {
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_, err := io.Copy(os.Stdout, reader)
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return err
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}
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}
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