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196 lines
4.8 KiB
196 lines
4.8 KiB
/*
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Copyright The Helm 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 action
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import (
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"fmt"
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"io"
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"os"
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"path/filepath"
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"github.com/Masterminds/semver"
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"github.com/gosuri/uitable"
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"github.com/spf13/pflag"
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"k8s.io/helm/pkg/chart"
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"k8s.io/helm/pkg/chart/loader"
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)
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// Dependency is the action for building a given chart's dependency tree.
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//
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// It provides the implementation of 'helm dependency' and its respective subcommands.
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type Dependency struct {
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Verify bool
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Keyring string
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SkipRefresh bool
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}
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// NewDependency creates a new Dependency object with the given configuration.
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func NewDependency() *Dependency {
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return &Dependency{}
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}
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func (d *Dependency) AddBuildFlags(f *pflag.FlagSet) {
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f.BoolVar(&d.Verify, "verify", false, "verify the packages against signatures")
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f.StringVar(&d.Keyring, "keyring", defaultKeyring(), "keyring containing public keys")
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}
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func (d *Dependency) AddUpdateFlags(f *pflag.FlagSet) {
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d.AddBuildFlags(f)
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f.BoolVar(&d.SkipRefresh, "skip-refresh", false, "do not refresh the local repository cache")
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}
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// List executes 'helm dependency list'.
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func (d *Dependency) List(chartpath string, out io.Writer) error {
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c, err := loader.Load(chartpath)
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if err != nil {
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return err
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}
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if c.Metadata.Dependencies == nil {
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fmt.Fprintf(out, "WARNING: no dependencies at %s\n", filepath.Join(chartpath, "charts"))
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return nil
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}
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d.printDependencies(chartpath, out, c.Metadata.Dependencies)
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fmt.Fprintln(out)
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d.printMissing(chartpath, out, c.Metadata.Dependencies)
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return nil
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}
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func (d *Dependency) dependencyStatus(chartpath string, dep *chart.Dependency) string {
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filename := fmt.Sprintf("%s-%s.tgz", dep.Name, "*")
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archives, err := filepath.Glob(filepath.Join(chartpath, "charts", filename))
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if err != nil {
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return "bad pattern"
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} else if len(archives) > 1 {
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return "too many matches"
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} else if len(archives) == 1 {
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archive := archives[0]
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if _, err := os.Stat(archive); err == nil {
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c, err := loader.Load(archive)
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if err != nil {
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return "corrupt"
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}
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if c.Name() != dep.Name {
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return "misnamed"
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}
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if c.Metadata.Version != dep.Version {
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constraint, err := semver.NewConstraint(dep.Version)
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if err != nil {
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return "invalid version"
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}
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v, err := semver.NewVersion(c.Metadata.Version)
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if err != nil {
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return "invalid version"
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}
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if constraint.Check(v) {
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return "ok"
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}
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return "wrong version"
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}
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return "ok"
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}
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}
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folder := filepath.Join(chartpath, "charts", dep.Name)
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if fi, err := os.Stat(folder); err != nil {
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return "missing"
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} else if !fi.IsDir() {
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return "mispackaged"
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}
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c, err := loader.Load(folder)
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if err != nil {
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return "corrupt"
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}
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if c.Name() != dep.Name {
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return "misnamed"
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}
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if c.Metadata.Version != dep.Version {
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constraint, err := semver.NewConstraint(dep.Version)
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if err != nil {
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return "invalid version"
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}
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v, err := semver.NewVersion(c.Metadata.Version)
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if err != nil {
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return "invalid version"
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}
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if constraint.Check(v) {
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return "unpacked"
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}
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return "wrong version"
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}
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return "unpacked"
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}
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// printDependencies prints all of the dependencies in the yaml file.
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func (d *Dependency) printDependencies(chartpath string, out io.Writer, reqs []*chart.Dependency) {
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table := uitable.New()
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table.MaxColWidth = 80
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table.AddRow("NAME", "VERSION", "REPOSITORY", "STATUS")
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for _, row := range reqs {
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table.AddRow(row.Name, row.Version, row.Repository, d.dependencyStatus(chartpath, row))
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}
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fmt.Fprintln(out, table)
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}
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// printMissing prints warnings about charts that are present on disk, but are
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// not in Charts.yaml.
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func (d *Dependency) printMissing(chartpath string, out io.Writer, reqs []*chart.Dependency) {
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folder := filepath.Join(chartpath, "charts/*")
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files, err := filepath.Glob(folder)
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if err != nil {
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fmt.Fprintln(out, err)
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return
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}
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for _, f := range files {
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fi, err := os.Stat(f)
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if err != nil {
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fmt.Fprintf(out, "Warning: %s\n", err)
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}
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// Skip anything that is not a directory and not a tgz file.
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if !fi.IsDir() && filepath.Ext(f) != ".tgz" {
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continue
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}
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c, err := loader.Load(f)
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if err != nil {
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fmt.Fprintf(out, "WARNING: %q is not a chart.\n", f)
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continue
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}
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found := false
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for _, d := range reqs {
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if d.Name == c.Name() {
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found = true
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break
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}
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}
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if !found {
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fmt.Fprintf(out, "WARNING: %q is not in Chart.yaml.\n", f)
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}
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}
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}
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