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99 lines
2.5 KiB
Go
99 lines
2.5 KiB
Go
/*
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Copyright 2021 The Flux 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 main
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import (
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"fmt"
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"os"
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"os/signal"
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"github.com/spf13/cobra"
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"github.com/fluxcd/flux2/internal/build"
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kustomizev1 "github.com/fluxcd/kustomize-controller/api/v1beta2"
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)
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var diffKsCmd = &cobra.Command{
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Use: "kustomization",
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Aliases: []string{"ks"},
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Short: "Diff Kustomization",
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Long: `The diff command does a build, then it performs a server-side dry-run and output the diff.`,
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Example: `# Preview changes local changes as they were applied on the cluster
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flux diff kustomization my-app --path ./path/to/local/manifests`,
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ValidArgsFunction: resourceNamesCompletionFunc(kustomizev1.GroupVersion.WithKind(kustomizev1.KustomizationKind)),
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RunE: diffKsCmdRun,
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}
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type diffKsFlags struct {
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path string
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}
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var diffKsArgs diffKsFlags
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func init() {
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diffKsCmd.Flags().StringVar(&diffKsArgs.path, "path", "", "Path to a local directory that matches the specified Kustomization.spec.path.)")
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diffCmd.AddCommand(diffKsCmd)
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}
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func diffKsCmdRun(cmd *cobra.Command, args []string) error {
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if len(args) < 1 {
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return fmt.Errorf("%s name is required", kustomizationType.humanKind)
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}
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name := args[0]
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if diffKsArgs.path == "" {
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return fmt.Errorf("invalid resource path %q", diffKsArgs.path)
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}
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if fs, err := os.Stat(diffKsArgs.path); err != nil || !fs.IsDir() {
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return fmt.Errorf("invalid resource path %q", diffKsArgs.path)
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}
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builder, err := build.NewBuilder(kubeconfigArgs, name, diffKsArgs.path, build.WithTimeout(rootArgs.timeout))
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if err != nil {
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return err
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}
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// create a signal channel
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sigc := make(chan os.Signal, 1)
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signal.Notify(sigc, os.Interrupt)
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errChan := make(chan error)
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go func() {
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output, err := builder.Diff()
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if err != nil {
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errChan <- err
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}
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cmd.Print(output)
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errChan <- nil
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}()
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select {
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case <-sigc:
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fmt.Println("Build cancelled... exiting.")
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return builder.Cancel()
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case err := <-errChan:
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if err != nil {
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return err
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}
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}
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return nil
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}
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