80 lines
1.8 KiB
Go
80 lines
1.8 KiB
Go
package cli
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// CommandCategories interface allows for category manipulation
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type CommandCategories interface {
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// AddCommand adds a command to a category, creating a new category if necessary.
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AddCommand(category string, command *Command)
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// categories returns a copy of the category slice
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Categories() []CommandCategory
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}
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type commandCategories []*commandCategory
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func newCommandCategories() CommandCategories {
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ret := commandCategories([]*commandCategory{})
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return &ret
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}
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func (c *commandCategories) Less(i, j int) bool {
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return lexicographicLess((*c)[i].Name(), (*c)[j].Name())
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}
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func (c *commandCategories) Len() int {
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return len(*c)
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}
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func (c *commandCategories) Swap(i, j int) {
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(*c)[i], (*c)[j] = (*c)[j], (*c)[i]
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}
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func (c *commandCategories) AddCommand(category string, command *Command) {
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for _, commandCategory := range []*commandCategory(*c) {
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if commandCategory.name == category {
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commandCategory.commands = append(commandCategory.commands, command)
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return
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}
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}
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newVal := append(*c,
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&commandCategory{name: category, commands: []*Command{command}})
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*c = newVal
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}
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func (c *commandCategories) Categories() []CommandCategory {
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ret := make([]CommandCategory, len(*c))
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for i, cat := range *c {
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ret[i] = cat
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}
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return ret
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}
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// CommandCategory is a category containing commands.
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type CommandCategory interface {
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// Name returns the category name string
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Name() string
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// VisibleCommands returns a slice of the Commands with Hidden=false
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VisibleCommands() []*Command
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}
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type commandCategory struct {
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name string
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commands []*Command
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}
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func (c *commandCategory) Name() string {
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return c.name
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}
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func (c *commandCategory) VisibleCommands() []*Command {
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if c.commands == nil {
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c.commands = []*Command{}
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}
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var ret []*Command
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for _, command := range c.commands {
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if !command.Hidden {
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ret = append(ret, command)
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}
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}
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return ret
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}
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