github.com/codefresh-io/kcfi@v0.0.0-20230301195427-c1578715cc46/cmd/kcfi/plugin_update.go (about)

     1  /*
     2  Copyright The Helm Authors.
     3  Licensed under the Apache License, Version 2.0 (the "License");
     4  you may not use this file except in compliance with the License.
     5  You may obtain a copy of the License at
     6  
     7  http://www.apache.org/licenses/LICENSE-2.0
     8  
     9  Unless required by applicable law or agreed to in writing, software
    10  distributed under the License is distributed on an "AS IS" BASIS,
    11  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    12  See the License for the specific language governing permissions and
    13  limitations under the License.
    14  */
    15  
    16  package main
    17  
    18  import (
    19  	"fmt"
    20  	"io"
    21  	"path/filepath"
    22  	"strings"
    23  
    24  	"github.com/pkg/errors"
    25  	"github.com/spf13/cobra"
    26  
    27  	"github.com/codefresh-io/kcfi/pkg/helm-internal/completion"
    28  	"helm.sh/helm/v3/pkg/plugin"
    29  	"helm.sh/helm/v3/pkg/plugin/installer"
    30  )
    31  
    32  type pluginUpdateOptions struct {
    33  	names []string
    34  }
    35  
    36  func newPluginUpdateCmd(out io.Writer) *cobra.Command {
    37  	o := &pluginUpdateOptions{}
    38  
    39  	cmd := &cobra.Command{
    40  		Use:     "update <plugin>...",
    41  		Aliases: []string{"up"},
    42  		Short:   "update one or more Helm plugins",
    43  		PreRunE: func(cmd *cobra.Command, args []string) error {
    44  			return o.complete(args)
    45  		},
    46  		RunE: func(cmd *cobra.Command, args []string) error {
    47  			return o.run(out)
    48  		},
    49  	}
    50  
    51  	// Function providing dynamic auto-completion
    52  	completion.RegisterValidArgsFunc(cmd, func(cmd *cobra.Command, args []string, toComplete string) ([]string, completion.BashCompDirective) {
    53  		if len(args) != 0 {
    54  			return nil, completion.BashCompDirectiveNoFileComp
    55  		}
    56  		return compListPlugins(toComplete), completion.BashCompDirectiveNoFileComp
    57  	})
    58  
    59  	return cmd
    60  }
    61  
    62  func (o *pluginUpdateOptions) complete(args []string) error {
    63  	if len(args) == 0 {
    64  		return errors.New("please provide plugin name to update")
    65  	}
    66  	o.names = args
    67  	return nil
    68  }
    69  
    70  func (o *pluginUpdateOptions) run(out io.Writer) error {
    71  	installer.Debug = settings.Debug
    72  	debug("loading installed plugins from %s", settings.PluginsDirectory)
    73  	plugins, err := findPlugins(settings.PluginsDirectory)
    74  	if err != nil {
    75  		return err
    76  	}
    77  	var errorPlugins []string
    78  
    79  	for _, name := range o.names {
    80  		if found := findPlugin(plugins, name); found != nil {
    81  			if err := updatePlugin(found); err != nil {
    82  				errorPlugins = append(errorPlugins, fmt.Sprintf("Failed to update plugin %s, got error (%v)", name, err))
    83  			} else {
    84  				fmt.Fprintf(out, "Updated plugin: %s\n", name)
    85  			}
    86  		} else {
    87  			errorPlugins = append(errorPlugins, fmt.Sprintf("Plugin: %s not found", name))
    88  		}
    89  	}
    90  	if len(errorPlugins) > 0 {
    91  		return errors.Errorf(strings.Join(errorPlugins, "\n"))
    92  	}
    93  	return nil
    94  }
    95  
    96  func updatePlugin(p *plugin.Plugin) error {
    97  	exactLocation, err := filepath.EvalSymlinks(p.Dir)
    98  	if err != nil {
    99  		return err
   100  	}
   101  	absExactLocation, err := filepath.Abs(exactLocation)
   102  	if err != nil {
   103  		return err
   104  	}
   105  
   106  	i, err := installer.FindSource(absExactLocation)
   107  	if err != nil {
   108  		return err
   109  	}
   110  	if err := installer.Update(i); err != nil {
   111  		return err
   112  	}
   113  
   114  	debug("loading plugin from %s", i.Path())
   115  	updatedPlugin, err := plugin.LoadDir(i.Path())
   116  	if err != nil {
   117  		return err
   118  	}
   119  
   120  	return runHook(updatedPlugin, plugin.Update)
   121  }