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118 lines
3.4 KiB
Go
118 lines
3.4 KiB
Go
/*
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Copyright 2022 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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"bufio"
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"bytes"
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"fmt"
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"io"
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"os"
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"strings"
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"github.com/spf13/cobra"
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oci "github.com/fluxcd/pkg/oci/client"
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"github.com/fluxcd/pkg/sourceignore"
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)
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var buildArtifactCmd = &cobra.Command{
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Use: "artifact",
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Short: "Build artifact",
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Long: withPreviewNote(`The build artifact command creates a tgz file with the manifests
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from the given directory or a single manifest file.`),
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Example: ` # Build the given manifests directory into an artifact
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flux build artifact --path ./path/to/local/manifests --output ./path/to/artifact.tgz
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# Build the given single manifest file into an artifact
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flux build artifact --path ./path/to/local/manifest.yaml --output ./path/to/artifact.tgz
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# List the files bundled in the artifact
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tar -ztvf ./path/to/artifact.tgz
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`,
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RunE: buildArtifactCmdRun,
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}
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type buildArtifactFlags struct {
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output string
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path string
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ignorePaths []string
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}
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var excludeOCI = append(strings.Split(sourceignore.ExcludeVCS, ","), strings.Split(sourceignore.ExcludeExt, ",")...)
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var buildArtifactArgs buildArtifactFlags
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func init() {
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buildArtifactCmd.Flags().StringVarP(&buildArtifactArgs.path, "path", "p", "", "Path to the directory where the Kubernetes manifests are located.")
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buildArtifactCmd.Flags().StringVarP(&buildArtifactArgs.output, "output", "o", "artifact.tgz", "Path to where the artifact tgz file should be written.")
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buildArtifactCmd.Flags().StringSliceVar(&buildArtifactArgs.ignorePaths, "ignore-paths", excludeOCI, "set paths to ignore in .gitignore format")
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buildCmd.AddCommand(buildArtifactCmd)
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}
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func buildArtifactCmdRun(cmd *cobra.Command, args []string) error {
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if buildArtifactArgs.path == "" {
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return fmt.Errorf("invalid path %q", buildArtifactArgs.path)
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}
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path := buildArtifactArgs.path
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var err error
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if buildArtifactArgs.path == "-" {
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path, err = saveReaderToFile(os.Stdin)
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if err != nil {
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return err
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}
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defer os.Remove(path)
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}
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if _, err := os.Stat(path); err != nil {
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return fmt.Errorf("invalid path '%s', must point to an existing directory or file", path)
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}
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logger.Actionf("building artifact from %s", path)
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ociClient := oci.NewClient(oci.DefaultOptions())
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if err := ociClient.Build(buildArtifactArgs.output, path, buildArtifactArgs.ignorePaths); err != nil {
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return fmt.Errorf("building artifact failed, error: %w", err)
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}
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logger.Successf("artifact created at %s", buildArtifactArgs.output)
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return nil
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}
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func saveReaderToFile(reader io.Reader) (string, error) {
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b, err := io.ReadAll(bufio.NewReader(reader))
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if err != nil {
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return "", err
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}
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b = bytes.TrimRight(b, "\r\n")
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f, err := os.CreateTemp("", "*.yaml")
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if err != nil {
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return "", fmt.Errorf("unable to create temp dir for stdin")
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}
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defer f.Close()
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if _, err := f.Write(b); err != nil {
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return "", fmt.Errorf("error writing stdin to file: %w", err)
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}
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return f.Name(), nil
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}
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