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Merge pull request #21 from Ccheers/dev
feat(xcli): 提供 cobra 支持
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,66 @@ | ||
| package xcli | ||
|
|
||
| import ( | ||
| "context" | ||
| "flag" | ||
|
|
||
| "github.com/spf13/cobra" | ||
| "github.com/spf13/pflag" | ||
| ) | ||
|
|
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| type ICommandList []ICommand | ||
|
|
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| type ICommand interface { | ||
| Use() string | ||
| Short() string | ||
| Long() string | ||
| Run(ctx context.Context, args []string) error | ||
| Flags() *flag.FlagSet | ||
| } | ||
|
|
||
| type pflagValueAdapter struct { | ||
| value flag.Value | ||
| } | ||
|
|
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| func newPflagValueAdapter(value flag.Value) *pflagValueAdapter { | ||
| return &pflagValueAdapter{value: value} | ||
| } | ||
|
|
||
| func (x *pflagValueAdapter) String() string { | ||
| return x.value.String() | ||
| } | ||
|
|
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| func (x *pflagValueAdapter) Set(s string) error { | ||
| return x.value.Set(s) | ||
| } | ||
|
|
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| func (x *pflagValueAdapter) Type() string { | ||
| return "string" | ||
| } | ||
|
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| func InitRootCommand(root ICommand, cmds ...ICommand) *cobra.Command { | ||
| rootCmd := BuildCobraCommand(root) | ||
| for _, sudCmd := range cmds { | ||
| rootCmd.AddCommand(BuildCobraCommand(sudCmd)) | ||
| } | ||
| return rootCmd | ||
| } | ||
|
|
||
| func BuildCobraCommand(icmd ICommand) *cobra.Command { | ||
| c := &cobra.Command{ | ||
| Use: icmd.Use(), | ||
| Short: icmd.Short(), | ||
| Long: icmd.Long(), | ||
| RunE: func(cmd *cobra.Command, args []string) error { | ||
| return icmd.Run(cmd.Context(), args) | ||
| }, | ||
| } | ||
| ConvFlag2Pflag(icmd.Flags(), c.Flags()) | ||
| return c | ||
| } | ||
|
|
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| func ConvFlag2Pflag(src *flag.FlagSet, dst *pflag.FlagSet) { | ||
| src.VisitAll(func(f *flag.Flag) { | ||
| dst.Var(newPflagValueAdapter(f.Value), f.Name, f.Usage) | ||
| }) | ||
| } |