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package commands
import (
"io"
"io/ioutil"
"os"
"text/tabwriter"
pb "github.com/containerd/continuity/proto"
"github.com/golang/protobuf/proto"
"github.com/spf13/cobra"
)
var (
MainCmd = &cobra.Command{
Use: "continuity <command>",
Short: "A transport-agnostic filesytem metadata tool.",
}
// usageTemplate is nearly identical to the default template without the
// automatic addition of flags. Instead, Command.Use is used unmodified.
usageTemplate = `Usage:{{if .Runnable}}
{{.UseLine}}{{end}}{{if .HasSubCommands}}
{{ .CommandPath}} [command]{{end}}{{if gt .Aliases 0}}
Aliases:
{{.NameAndAliases}}
{{end}}{{if .HasExample}}
Examples:
{{ .Example }}{{end}}{{ if .HasAvailableSubCommands}}
Available Commands:{{range .Commands}}{{if .IsAvailableCommand}}
{{rpad .Name .NamePadding }} {{.Short}}{{end}}{{end}}{{end}}{{ if .HasLocalFlags}}
Flags:
{{.LocalFlags.FlagUsages | trimRightSpace}}{{end}}{{ if .HasInheritedFlags}}
Global Flags:
{{.InheritedFlags.FlagUsages | trimRightSpace}}{{end}}{{if .HasHelpSubCommands}}
Additional help topics:{{range .Commands}}{{if .IsHelpCommand}}
{{rpad .CommandPath .CommandPathPadding}} {{.Short}}{{end}}{{end}}{{end}}{{ if .HasSubCommands }}
Use "{{.CommandPath}} [command] --help" for more information about a command.{{end}}
`
)
func init() {
MainCmd.AddCommand(BuildCmd)
MainCmd.AddCommand(VerifyCmd)
MainCmd.AddCommand(ApplyCmd)
MainCmd.AddCommand(LSCmd)
MainCmd.AddCommand(StatsCmd)
MainCmd.AddCommand(DumpCmd)
if MountCmd != nil {
MainCmd.AddCommand(MountCmd)
}
MainCmd.SetUsageTemplate(usageTemplate)
}
// readManifestFile reads the manifest from the given path. This should
// probably be provided by the continuity library.
func readManifestFile(path string) (*pb.Manifest, error) {
p, err := ioutil.ReadFile(path)
if err != nil {
return nil, err
}
var bm pb.Manifest
if err := proto.Unmarshal(p, &bm); err != nil {
return nil, err
}
return &bm, nil
}
// newTabwriter provides a common tabwriter with defaults.
func newTabwriter(w io.Writer) *tabwriter.Writer {
return tabwriter.NewWriter(os.Stdout, 0, 2, 2, ' ', 0)
}
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