Refactor package CLI command (#1345)

2019-10-13 01:30:20 +08:00
parent f30e7df43d
commit e42f81a7a1
22 changed files with 1769 additions and 1172 deletions
@@ -0,0 +1,130 @@
+/*
+Copyright 2019 The Fission 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 _package
+
+import (
+	"fmt"
+
+	"github.com/pkg/errors"
+	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
+
+	"github.com/fission/fission/pkg/controller/client"
+	"github.com/fission/fission/pkg/fission-cli/cliwrapper/cli"
+	cmdutils "github.com/fission/fission/pkg/fission-cli/cmd"
+)
+
+type DeleteSubCommand struct {
+	client        *client.Client
+	name          string
+	namespace     string
+	deleteOrphans bool
+	force         bool
+}
+
+func Delete(flags cli.Input) error {
+	opts := DeleteSubCommand{
+		client: cmdutils.GetServer(flags),
+	}
+	return opts.do(flags)
+}
+
+func (opts *DeleteSubCommand) do(flags cli.Input) error {
+	err := opts.complete(flags)
+	if err != nil {
+		return err
+	}
+	return opts.run(flags)
+}
+
+func (opts *DeleteSubCommand) complete(flags cli.Input) error {
+	opts.name = flags.String("name")
+	opts.namespace = flags.String("pkgNamespace")
+	opts.deleteOrphans = flags.Bool("orphan")
+	opts.force = flags.Bool("f")
+
+	if len(opts.name) == 0 && !opts.deleteOrphans {
+		return errors.New("need --name argument or --orphan flag")
+	}
+	if len(opts.name) != 0 && opts.deleteOrphans {
+		return errors.New("need either --name argument or --orphan flag")
+	}
+
+	return nil
+}
+
+func (opts *DeleteSubCommand) run(flags cli.Input) error {
+	if len(opts.name) != 0 {
+		_, err := opts.client.PackageGet(&metav1.ObjectMeta{
+			Namespace: opts.namespace,
+			Name:      opts.name,
+		})
+		if err != nil {
+			return errors.Wrap(err, "find package")
+		}
+
+		fnList, err := GetFunctionsByPackage(opts.client, opts.name, opts.namespace)
+		if err != nil {
+			return err
+		}
+
+		if !opts.force && len(fnList) > 0 {
+			return errors.New("Package is used by at least one function, use -f to force delete")
+		}
+		err = deletePackage(opts.client, opts.name, opts.namespace)
+		if err != nil {
+			return err
+		}
+		fmt.Printf("Package '%v' deleted\n", opts.name)
+	} else {
+		err := deleteOrphanPkgs(opts.client, opts.namespace)
+		if err != nil {
+			return errors.Wrap(err, "deleting orphan packages")
+		}
+		fmt.Println("Orphan packages deleted")
+	}
+
+	return nil
+}
+
+func deleteOrphanPkgs(client *client.Client, pkgNamespace string) error {
+	pkgList, err := client.PackageList(pkgNamespace)
+	if err != nil {
+		return err
+	}
+
+	// range through all packages and find out the ones not referenced by any function
+	for _, pkg := range pkgList {
+		fnList, err := GetFunctionsByPackage(client, pkg.Metadata.Name, pkgNamespace)
+		if err != nil {
+			return errors.Wrap(err, fmt.Sprintf("get functions sharing package %s", pkg.Metadata.Name))
+		}
+		if len(fnList) == 0 {
+			err = deletePackage(client, pkg.Metadata.Name, pkgNamespace)
+			if err != nil {
+				return err
+			}
+		}
+	}
+	return nil
+}
+
+func deletePackage(client *client.Client, pkgName string, pkgNamespace string) error {
+	return client.PackageDelete(&metav1.ObjectMeta{
+		Namespace: pkgNamespace,
+		Name:      pkgName,
+	})
+}