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package listcmd
import (
"context"
"flag"
"fmt"
"io"
"text/tabwriter"
"time"
"github.com/peterbourgon/ff/v3/ffcli"
"github.com/peterbourgon/ff/v3/ffcli/examples/objectctl/pkg/rootcmd"
)
// Config for the list subcommand, including a reference
// to the global config, for access to global flags.
type Config struct {
rootConfig *rootcmd.Config
out io.Writer
withAccessTimes bool
}
// New creates a new ffcli.Command for the list subcommand.
func New(rootConfig *rootcmd.Config, out io.Writer) *ffcli.Command {
cfg := Config{
rootConfig: rootConfig,
out: out,
}
fs := flag.NewFlagSet("objectctl list", flag.ExitOnError)
fs.BoolVar(&cfg.withAccessTimes, "a", false, "include last access time of each object")
rootConfig.RegisterFlags(fs)
return &ffcli.Command{
Name: "list",
ShortUsage: "objectctl list [flags] [<prefix>]",
ShortHelp: "List available objects",
FlagSet: fs,
Exec: cfg.Exec,
}
}
// Exec function for this command.
func (c *Config) Exec(ctx context.Context, _ []string) error {
objects, err := c.rootConfig.Client.List(ctx)
if err != nil {
return fmt.Errorf("error executing list: %w", err)
}
if len(objects) <= 0 {
fmt.Fprintf(c.out, "no objects\n")
return nil
}
if c.rootConfig.Verbose {
fmt.Fprintf(c.out, "object count: %d\n", len(objects))
}
tw := tabwriter.NewWriter(c.out, 0, 2, 2, ' ', 0)
if c.withAccessTimes {
fmt.Fprintf(tw, "KEY\tVALUE\tATIME\n")
} else {
fmt.Fprintf(tw, "KEY\tVALUE\n")
}
for _, object := range objects {
if c.withAccessTimes {
fmt.Fprintf(tw, "%s\t%s\t%s\n", object.Key, object.Value, object.Access.Format(time.RFC3339))
} else {
fmt.Fprintf(tw, "%s\t%s\n", object.Key, object.Value)
}
}
tw.Flush()
return nil
}
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