Puberty commit

backend/commands/commands.go

@@ -0,0 +1,78 @@
+package commands
+
+import (
+	"fmt"
+	"strings"
+)
+
+type Command struct {
+	Name            string `json:"name"`
+	Description     string `json:"description"`
+	Args            string `json:"-"`
+	ArgsPlaceholder string `json:"args_placeholder"`
+	Flags           []Flag `json:"flags"`
+}
+
+type Flag struct {
+	Name        string `json:"name"`
+	Type        string `json:"type"`
+	Description string `json:"description"`
+	Default     string `json:"default"`
+	Value       string `json:"-"`
+}
+
+var (
+	list []Command
+)
+
+func Import(l []Command) {
+	list = l
+}
+
+// List returns a list of commands.
+func List() []Command {
+	return list
+}
+
+// Map returns commands as a map.
+func Map() map[string]Command {
+	m := make(map[string]Command, len(list))
+	for _, cmd := range list {
+		m[cmd.Name] = cmd
+	}
+	return m
+}
+
+func (c Command) CombinedArgs() []string {
+	args := []string{c.Name}
+	args = append(args, c.ArgsSlice()...)
+	args = append(args, c.FlagsSlice()...)
+	return args
+}
+
+func (c Command) ArgsSlice() []string {
+	if c.Args == "" {
+		return []string{}
+	}
+	return strings.Split(c.Args, " ")
+}
+
+func (c Command) FlagsSlice() []string {
+	flags := []string{}
+	for _, f := range c.Flags {
+		flags = append(flags, f.encode())
+	}
+	return flags
+}
+
+func (c Command) FlagsString() string {
+	return strings.Join(c.FlagsSlice(), " ")
+}
+
+func (c Command) String() string {
+	return strings.Join(c.CombinedArgs(), " ")
+}
+
+func (f Flag) encode() string {
+	return fmt.Sprintf("--%s=%s", f.Name, f.Value)
+}