mirror of
https://github.com/spf13/cobra
synced 2024-06-29 15:19:07 +00:00
125 lines
3.4 KiB
Go
125 lines
3.4 KiB
Go
// Copyright © 2015 Steve Francia <spf@spf13.com>.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package cmd
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import (
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"fmt"
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"os"
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"unicode"
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"github.com/spf13/cobra"
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)
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var (
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packageName string
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parentName string
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addCmd = &cobra.Command{
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Use: "add [command name]",
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Aliases: []string{"command"},
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Short: "Add a command to a Cobra Application",
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Long: `Add (cobra add) will create a new command, with a license and
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the appropriate structure for a Cobra-based CLI application,
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and register it to its parent (default rootCmd).
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If you want your command to be public, pass in the command name
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with an initial uppercase letter.
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Example: cobra add server -> resulting in a new cmd/server.go`,
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Run: func(cmd *cobra.Command, args []string) {
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if len(args) < 1 {
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cobra.CheckErr(fmt.Errorf("add needs a name for the command"))
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}
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wd, err := os.Getwd()
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cobra.CheckErr(err)
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commandName := validateCmdName(args[0])
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command := &Command{
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CmdName: commandName,
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CmdParent: parentName,
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Project: &Project{
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AbsolutePath: wd,
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Legal: getLicense(),
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Copyright: copyrightLine(),
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},
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}
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cobra.CheckErr(command.Create())
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fmt.Printf("%s created at %s\n", command.CmdName, command.AbsolutePath)
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},
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}
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)
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func init() {
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addCmd.Flags().StringVarP(&packageName, "package", "t", "", "target package name (e.g. github.com/spf13/hugo)")
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addCmd.Flags().StringVarP(&parentName, "parent", "p", "rootCmd", "variable name of parent command for this command")
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cobra.CheckErr(addCmd.Flags().MarkDeprecated("package", "this operation has been removed."))
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}
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// validateCmdName returns source without any dashes and underscore.
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// If there will be dash or underscore, next letter will be uppered.
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// It supports only ASCII (1-byte character) strings.
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// https://github.com/spf13/cobra/issues/269
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func validateCmdName(source string) string {
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i := 0
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l := len(source)
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// The output is initialized on demand, then first dash or underscore
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// occurs.
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var output string
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for i < l {
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if source[i] == '-' || source[i] == '_' {
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if output == "" {
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output = source[:i]
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}
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// If it's last rune and it's dash or underscore,
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// don't add it output and break the loop.
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if i == l-1 {
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break
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}
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// If next character is dash or underscore,
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// just skip the current character.
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if source[i+1] == '-' || source[i+1] == '_' {
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i++
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continue
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}
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// If the current character is dash or underscore,
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// upper next letter and add to output.
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output += string(unicode.ToUpper(rune(source[i+1])))
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// We know, what source[i] is dash or underscore and source[i+1] is
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// uppered character, so make i = i+2.
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i += 2
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continue
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}
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// If the current character isn't dash or underscore,
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// just add it.
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if output != "" {
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output += string(source[i])
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}
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i++
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}
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if output == "" {
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return source // source is initially valid name.
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}
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return output
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}
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