create.go

Documentation: github.com/peterbourgon/ff/v3/ffcli/examples/objectctl/pkg/createcmd

     1  package createcmd
     2  
     3  import (
     4  	"context"
     5  	"errors"
     6  	"flag"
     7  	"fmt"
     8  	"io"
     9  	"strings"
    10  
    11  	"github.com/peterbourgon/ff/v3/ffcli"
    12  	"github.com/peterbourgon/ff/v3/ffcli/examples/objectctl/pkg/rootcmd"
    13  )
    14  
    15  // Config for the create subcommand, including a reference to the API client.
    16  type Config struct {
    17  	rootConfig *rootcmd.Config
    18  	out        io.Writer
    19  	overwrite  bool
    20  }
    21  
    22  // New returns a usable ffcli.Command for the create subcommand.
    23  func New(rootConfig *rootcmd.Config, out io.Writer) *ffcli.Command {
    24  	cfg := Config{
    25  		rootConfig: rootConfig,
    26  		out:        out,
    27  	}
    28  
    29  	fs := flag.NewFlagSet("objectctl create", flag.ExitOnError)
    30  	fs.BoolVar(&cfg.overwrite, "overwrite", false, "overwrite existing object, if it exists")
    31  	rootConfig.RegisterFlags(fs)
    32  
    33  	return &ffcli.Command{
    34  		Name:       "create",
    35  		ShortUsage: "objectctl create [flags] <key> <value data...>",
    36  		ShortHelp:  "Create or overwrite an object",
    37  		FlagSet:    fs,
    38  		Exec:       cfg.Exec,
    39  	}
    40  }
    41  
    42  // Exec function for this command.
    43  func (c *Config) Exec(ctx context.Context, args []string) error {
    44  	if len(args) < 2 {
    45  		return errors.New("create requires at least 2 args")
    46  	}
    47  
    48  	var (
    49  		key   = args[0]
    50  		value = strings.Join(args[1:], " ")
    51  		err   = c.rootConfig.Client.Create(ctx, key, value, c.overwrite)
    52  	)
    53  	if err != nil {
    54  		return err
    55  	}
    56  
    57  	if c.rootConfig.Verbose {
    58  		fmt.Fprintf(c.out, "create %q OK\n", key)
    59  	}
    60  
    61  	return nil
    62  }
    63
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