github.com/SamarSidharth/kpt@v0.0.0-20231122062228-c7d747ae3ace/commands/alpha/rpkg/init/command.go (about)

     1  // Copyright 2022 The kpt Authors
     2  //
     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  package init
    16  
    17  import (
    18  	"context"
    19  	"fmt"
    20  
    21  	"github.com/GoogleContainerTools/kpt/commands/alpha/rpkg/util"
    22  	"github.com/GoogleContainerTools/kpt/internal/docs/generated/rpkgdocs"
    23  	"github.com/GoogleContainerTools/kpt/internal/errors"
    24  	"github.com/GoogleContainerTools/kpt/internal/util/porch"
    25  	porchapi "github.com/GoogleContainerTools/kpt/porch/api/porch/v1alpha1"
    26  	"github.com/spf13/cobra"
    27  	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
    28  	"k8s.io/cli-runtime/pkg/genericclioptions"
    29  	"sigs.k8s.io/controller-runtime/pkg/client"
    30  )
    31  
    32  const (
    33  	command = "cmdrpkginit"
    34  )
    35  
    36  func NewCommand(ctx context.Context, rcg *genericclioptions.ConfigFlags) *cobra.Command {
    37  	return newRunner(ctx, rcg).Command
    38  }
    39  
    40  func newRunner(ctx context.Context, rcg *genericclioptions.ConfigFlags) *runner {
    41  	r := &runner{
    42  		ctx: ctx,
    43  		cfg: rcg,
    44  	}
    45  	c := &cobra.Command{
    46  		Use:     "init PACKAGE_NAME",
    47  		Short:   rpkgdocs.InitShort,
    48  		Long:    rpkgdocs.InitShort + "\n" + rpkgdocs.InitLong,
    49  		Example: rpkgdocs.InitExamples,
    50  		PreRunE: r.preRunE,
    51  		RunE:    r.runE,
    52  		Hidden:  porch.HidePorchCommands,
    53  	}
    54  	r.Command = c
    55  
    56  	c.Flags().StringVar(&r.Description, "description", "sample description", "short description of the package.")
    57  	c.Flags().StringSliceVar(&r.Keywords, "keywords", []string{}, "list of keywords for the package.")
    58  	c.Flags().StringVar(&r.Site, "site", "", "link to page with information about the package.")
    59  	c.Flags().StringVar(&r.repository, "repository", "", "Repository to which package will be created.")
    60  	c.Flags().StringVar(&r.workspace, "workspace", "", "Workspace name of the package.")
    61  
    62  	return r
    63  }
    64  
    65  type runner struct {
    66  	ctx     context.Context
    67  	cfg     *genericclioptions.ConfigFlags
    68  	client  client.Client
    69  	Command *cobra.Command
    70  
    71  	// Flags
    72  	Keywords    []string
    73  	Description string
    74  	Site        string
    75  	name        string // Target package name
    76  	repository  string // Target repository
    77  	workspace   string // Target workspace name
    78  }
    79  
    80  func (r *runner) preRunE(_ *cobra.Command, args []string) error {
    81  	const op errors.Op = command + ".preRunE"
    82  
    83  	client, err := porch.CreateClientWithFlags(r.cfg)
    84  	if err != nil {
    85  		return errors.E(op, err)
    86  	}
    87  	r.client = client
    88  
    89  	if len(args) < 1 {
    90  		return errors.E(op, "PACKAGE_NAME is a required positional argument")
    91  	}
    92  
    93  	if r.repository == "" {
    94  		return errors.E(op, fmt.Errorf("--repository is required to specify target repository"))
    95  	}
    96  
    97  	if r.workspace == "" {
    98  		return errors.E(op, fmt.Errorf("--workspace is required to specify workspace name"))
    99  	}
   100  
   101  	r.name = args[0]
   102  	pkgExists, err := util.PackageAlreadyExists(r.ctx, r.client, r.repository, r.name, *r.cfg.Namespace)
   103  	if err != nil {
   104  		return err
   105  	}
   106  	if pkgExists {
   107  		return fmt.Errorf("`init` cannot create a new revision for package %q that already exists in repo %q; make subsequent revisions using `copy`",
   108  			r.name, r.repository)
   109  	}
   110  	return nil
   111  }
   112  
   113  func (r *runner) runE(cmd *cobra.Command, _ []string) error {
   114  	const op errors.Op = command + ".runE"
   115  
   116  	pr := &porchapi.PackageRevision{
   117  		TypeMeta: metav1.TypeMeta{
   118  			Kind:       "PackageRevision",
   119  			APIVersion: porchapi.SchemeGroupVersion.Identifier(),
   120  		},
   121  		ObjectMeta: metav1.ObjectMeta{
   122  			Namespace: *r.cfg.Namespace,
   123  		},
   124  		Spec: porchapi.PackageRevisionSpec{
   125  			PackageName:    r.name,
   126  			WorkspaceName:  porchapi.WorkspaceName(r.workspace),
   127  			RepositoryName: r.repository,
   128  			Tasks: []porchapi.Task{
   129  				{
   130  					Type: porchapi.TaskTypeInit,
   131  					Init: &porchapi.PackageInitTaskSpec{
   132  						Description: r.Description,
   133  						Keywords:    r.Keywords,
   134  						Site:        r.Site,
   135  					},
   136  				},
   137  			},
   138  		},
   139  		Status: porchapi.PackageRevisionStatus{},
   140  	}
   141  	if err := r.client.Create(r.ctx, pr); err != nil {
   142  		return errors.E(op, err)
   143  	}
   144  
   145  	fmt.Fprintf(cmd.OutOrStdout(), "%s created\n", pr.Name)
   146  	return nil
   147  }