mirror of
https://github.com/spf13/cobra
synced 2024-06-29 15:19:07 +00:00
129 lines
3 KiB
Go
129 lines
3 KiB
Go
// Copyright © 2021 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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"encoding/json"
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"fmt"
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"os"
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"os/exec"
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"path"
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"path/filepath"
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"strings"
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"github.com/spf13/cobra"
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"github.com/spf13/viper"
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)
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var (
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initCmd = &cobra.Command{
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Use: "init [path]",
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Aliases: []string{"initialize", "initialise", "create"},
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Short: "Initialize a Cobra Application",
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Long: `Initialize (cobra init) will create a new application, with a license
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and the appropriate structure for a Cobra-based CLI application.
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Cobra init must be run inside of a go module (please run "go mod init <MODNAME>" first)
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`,
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Run: func(_ *cobra.Command, args []string) {
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projectPath, err := initializeProject(args)
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cobra.CheckErr(err)
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cobra.CheckErr(goGet("github.com/spf13/cobra"))
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if viper.GetBool("useViper") {
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cobra.CheckErr(goGet("github.com/spf13/viper"))
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}
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fmt.Printf("Your Cobra application is ready at\n%s\n", projectPath)
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},
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}
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)
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func initializeProject(args []string) (string, error) {
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wd, err := os.Getwd()
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if err != nil {
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return "", err
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}
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if len(args) > 0 {
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if args[0] != "." {
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wd = fmt.Sprintf("%s/%s", wd, args[0])
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}
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}
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modName := getModImportPath()
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project := &Project{
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AbsolutePath: wd,
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PkgName: modName,
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Legal: getLicense(),
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Copyright: copyrightLine(),
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Viper: viper.GetBool("useViper"),
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AppName: path.Base(modName),
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}
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if err := project.Create(); err != nil {
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return "", err
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}
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return project.AbsolutePath, nil
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}
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func getModImportPath() string {
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mod, cd := parseModInfo()
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return path.Join(mod.Path, fileToURL(strings.TrimPrefix(cd.Dir, mod.Dir)))
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}
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func fileToURL(in string) string {
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i := strings.Split(in, string(filepath.Separator))
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return path.Join(i...)
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}
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func parseModInfo() (Mod, CurDir) {
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var mod Mod
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var dir CurDir
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m := modInfoJSON("-m")
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cobra.CheckErr(json.Unmarshal(m, &mod))
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// Unsure why, but if no module is present Path is set to this string.
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if mod.Path == "command-line-arguments" {
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cobra.CheckErr("Please run `go mod init <MODNAME>` before `cobra init`")
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}
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e := modInfoJSON("-e")
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cobra.CheckErr(json.Unmarshal(e, &dir))
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return mod, dir
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}
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type Mod struct {
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Path, Dir, GoMod string
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}
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type CurDir struct {
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Dir string
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}
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func goGet(mod string) error {
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return exec.Command("go", "get", mod).Run()
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}
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func modInfoJSON(args ...string) []byte {
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cmdArgs := append([]string{"list", "-json"}, args...)
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out, err := exec.Command("go", cmdArgs...).Output()
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cobra.CheckErr(err)
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return out
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}
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