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62 lines
1.1 KiB
62 lines
1.1 KiB
package cli
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import (
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"os"
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"fmt"
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"io/ioutil"
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"strings"
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)
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type Command struct {
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Name string
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ShortName string
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Usage string
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Description string
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Action func (context *Context)
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Flags []Flag
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}
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func (c Command) Run(ctx *Context) {
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// append help to flags
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c.Flags = append(
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c.Flags,
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helpFlag{"show help"},
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)
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set := flagSet(c.Name, c.Flags)
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set.SetOutput(ioutil.Discard)
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firstFlagIndex := -1
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for index, arg := range ctx.Args() {
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if strings.HasPrefix(arg, "-") {
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firstFlagIndex = index
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break
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}
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}
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var err error
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if firstFlagIndex > -1 {
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args := ctx.Args()[1:firstFlagIndex]
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flags := ctx.Args()[firstFlagIndex:]
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err = set.Parse(append(flags, args...))
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} else {
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err = set.Parse(ctx.Args()[1:])
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}
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if err != nil {
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fmt.Println("Incorrect Usage.\n")
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ShowCommandHelp(ctx, c.Name)
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fmt.Println("")
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os.Exit(1)
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}
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context := NewContext(ctx.App, set, ctx.globalSet)
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checkCommandHelp(context, c.Name)
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c.Action(context)
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}
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func (c Command) HasName(name string) bool {
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return c.Name == name || c.ShortName == name
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}
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