github.com/mook-as/cf-cli@v7.0.0-beta.28.0.20200120190804-b91c115fae48+incompatible/cf/commands/buildpack/delete_buildpack.go (about)

     1  package buildpack
     2  
     3  import (
     4  	"fmt"
     5  
     6  	"code.cloudfoundry.org/cli/cf/api"
     7  	"code.cloudfoundry.org/cli/cf/commandregistry"
     8  	"code.cloudfoundry.org/cli/cf/errors"
     9  	"code.cloudfoundry.org/cli/cf/flags"
    10  	. "code.cloudfoundry.org/cli/cf/i18n"
    11  	"code.cloudfoundry.org/cli/cf/models"
    12  	"code.cloudfoundry.org/cli/cf/requirements"
    13  	"code.cloudfoundry.org/cli/cf/terminal"
    14  )
    15  
    16  type DeleteBuildpack struct {
    17  	ui            terminal.UI
    18  	buildpackRepo api.BuildpackRepository
    19  }
    20  
    21  func init() {
    22  	commandregistry.Register(&DeleteBuildpack{})
    23  }
    24  
    25  func (cmd *DeleteBuildpack) SetDependency(deps commandregistry.Dependency, pluginCall bool) commandregistry.Command {
    26  	cmd.ui = deps.UI
    27  	cmd.buildpackRepo = deps.RepoLocator.GetBuildpackRepository()
    28  	return cmd
    29  }
    30  
    31  func (cmd *DeleteBuildpack) MetaData() commandregistry.CommandMetadata {
    32  	fs := make(map[string]flags.FlagSet)
    33  	fs["f"] = &flags.BoolFlag{ShortName: "f", Usage: T("Force deletion without confirmation")}
    34  	fs["s"] = &flags.StringFlag{ShortName: "s", Usage: T("Specify stack to disambiguate buildpacks with the same name")}
    35  
    36  	return commandregistry.CommandMetadata{
    37  		Name:        "delete-buildpack",
    38  		Description: T("Delete a buildpack"),
    39  		Usage: []string{
    40  			T("CF_NAME delete-buildpack BUILDPACK [-f] [-s STACK]"),
    41  		},
    42  		Flags: fs,
    43  	}
    44  }
    45  
    46  func (cmd *DeleteBuildpack) Requirements(requirementsFactory requirements.Factory, fc flags.FlagContext) ([]requirements.Requirement, error) {
    47  	usageReq := requirements.NewUsageRequirement(commandregistry.CLICommandUsagePresenter(cmd), "",
    48  		func() bool {
    49  			return len(fc.Args()) != 1
    50  		},
    51  	)
    52  
    53  	loginReq := requirementsFactory.NewLoginRequirement()
    54  
    55  	reqs := []requirements.Requirement{
    56  		usageReq,
    57  		loginReq,
    58  	}
    59  
    60  	return reqs, nil
    61  }
    62  
    63  func (cmd *DeleteBuildpack) Execute(c flags.FlagContext) error {
    64  	var (
    65  		err       error
    66  		buildpack models.Buildpack
    67  	)
    68  
    69  	buildpackName := c.Args()[0]
    70  	stack := c.String("s")
    71  
    72  	force := c.Bool("f")
    73  
    74  	if !force {
    75  		answer := cmd.ui.ConfirmDelete("buildpack", buildpackName)
    76  		if !answer {
    77  			return nil
    78  		}
    79  	}
    80  
    81  	if stack == "" {
    82  		buildpack, err = cmd.buildpackRepo.FindByName(buildpackName)
    83  		cmd.ui.Say(T("Deleting buildpack {{.BuildpackName}}...", map[string]interface{}{"BuildpackName": terminal.EntityNameColor(buildpackName)}))
    84  	} else {
    85  		buildpack, err = cmd.buildpackRepo.FindByNameAndStack(buildpackName, stack)
    86  		cmd.ui.Say(T("Deleting buildpack {{.BuildpackName}} with stack {{.Stack}}...", map[string]interface{}{"BuildpackName": terminal.EntityNameColor(buildpackName), "Stack": terminal.EntityNameColor(stack)}))
    87  	}
    88  
    89  	switch err.(type) {
    90  	case nil: //do nothing
    91  	case *errors.ModelNotFoundError:
    92  		cmd.ui.Ok()
    93  		if stack == "" {
    94  			cmd.ui.Warn(T("Buildpack {{.BuildpackName}} does not exist.", map[string]interface{}{"BuildpackName": buildpackName}))
    95  		} else {
    96  			cmd.ui.Warn(T("Buildpack '{{.BuildpackName}}' with stack '{{.Stack}}' not found.", map[string]interface{}{"BuildpackName": buildpackName, "Stack": stack}))
    97  		}
    98  		return nil
    99  	case *errors.AmbiguousModelError:
   100  		var err2 error
   101  		buildpack, err2 = cmd.buildpackRepo.FindByNameWithNilStack(buildpackName)
   102  		if err2 != nil {
   103  			return fmt.Errorf("%s Specify the stack (using -s) to disambiguate.", err.Error())
   104  		}
   105  	default:
   106  		return err
   107  
   108  	}
   109  
   110  	err = cmd.buildpackRepo.Delete(buildpack.GUID)
   111  	if err != nil {
   112  		return errors.New(T("Error deleting buildpack {{.Name}}\n{{.Error}}", map[string]interface{}{
   113  			"Name":  terminal.EntityNameColor(buildpack.Name),
   114  			"Error": err.Error(),
   115  		}))
   116  	}
   117  
   118  	cmd.ui.Ok()
   119  	return nil
   120  }