Refactor package CLI command (#1345)

pkg/fission-cli/cmd/spec/destroy.go

@@ -0,0 +1,59 @@
+/*
+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 spec
+
+import (
+	"github.com/fission/fission/pkg/controller/client"
+	"github.com/fission/fission/pkg/fission-cli/cliwrapper/cli"
+	"github.com/fission/fission/pkg/fission-cli/cmd"
+	"github.com/fission/fission/pkg/fission-cli/util"
+)
+
+type DestroySubCommand struct {
+	client *client.Client
+}
+
+// Destroy destroys everything in the spec.
+func Destroy(flags cli.Input) error {
+	opts := &DestroySubCommand{
+		client: cmd.GetServer(flags),
+	}
+	return opts.do(flags)
+}
+
+func (opts *DestroySubCommand) do(flags cli.Input) error {
+	return opts.run(flags)
+}
+
+func (opts *DestroySubCommand) run(flags cli.Input) error {
+	// get specdir
+	specDir := cmd.GetSpecDir(flags)
+
+	// read everything
+	fr, err := ReadSpecs(specDir)
+	util.CheckErr(err, "read specs")
+
+	// set desired state to nothing, but keep the UID so "apply" can find it
+	emptyFr := FissionResources{}
+	emptyFr.DeploymentConfig = fr.DeploymentConfig
+
+	// "apply" the empty state
+	_, _, err = applyResources(opts.client, specDir, &emptyFr, true)
+	util.CheckErr(err, "delete resources")
+
+	return nil
+}