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plugin_update.go
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plugin_update.go
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/*
Copyright The Helm 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 main
import (
"fmt"
"io"
"path/filepath"
"strings"
"github.com/pkg/errors"
"github.com/spf13/cobra"
"helm.sh/helm/v3/pkg/plugin"
"helm.sh/helm/v3/pkg/plugin/installer"
)
type pluginUpdateOptions struct {
names []string
}
func newPluginUpdateCmd(out io.Writer) *cobra.Command {
o := &pluginUpdateOptions{}
cmd := &cobra.Command{
Use: "update <plugin>...",
Aliases: []string{"up"},
Short: "update one or more Helm plugins",
ValidArgsFunction: func(cmd *cobra.Command, args []string, toComplete string) ([]string, cobra.ShellCompDirective) {
if len(args) != 0 {
return nil, cobra.ShellCompDirectiveNoFileComp
}
return compListPlugins(toComplete), cobra.ShellCompDirectiveNoFileComp
},
PreRunE: func(cmd *cobra.Command, args []string) error {
return o.complete(args)
},
RunE: func(cmd *cobra.Command, args []string) error {
return o.run(out)
},
}
return cmd
}
func (o *pluginUpdateOptions) complete(args []string) error {
if len(args) == 0 {
return errors.New("please provide plugin name to update")
}
o.names = args
return nil
}
func (o *pluginUpdateOptions) run(out io.Writer) error {
installer.Debug = settings.Debug
debug("loading installed plugins from %s", settings.PluginsDirectory)
plugins, err := plugin.FindPlugins(settings.PluginsDirectory)
if err != nil {
return err
}
var errorPlugins []string
for _, name := range o.names {
if found := findPlugin(plugins, name); found != nil {
if err := updatePlugin(found); err != nil {
errorPlugins = append(errorPlugins, fmt.Sprintf("Failed to update plugin %s, got error (%v)", name, err))
} else {
fmt.Fprintf(out, "Updated plugin: %s\n", name)
}
} else {
errorPlugins = append(errorPlugins, fmt.Sprintf("Plugin: %s not found", name))
}
}
if len(errorPlugins) > 0 {
return errors.Errorf(strings.Join(errorPlugins, "\n"))
}
return nil
}
func updatePlugin(p *plugin.Plugin) error {
exactLocation, err := filepath.EvalSymlinks(p.Dir)
if err != nil {
return err
}
absExactLocation, err := filepath.Abs(exactLocation)
if err != nil {
return err
}
i, err := installer.FindSource(absExactLocation)
if err != nil {
return err
}
if err := installer.Update(i); err != nil {
return err
}
debug("loading plugin from %s", i.Path())
updatedPlugin, err := plugin.LoadDir(i.Path())
if err != nil {
return err
}
return runHook(updatedPlugin, plugin.Update)
}