actually add command

command/pr_create.go

@@ -0,0 +1,207 @@
+package command
+
+import (
+	"fmt"
+	"github.com/AlecAivazis/survey/v2"
+	"github.com/github/gh-cli/api"
+	"github.com/github/gh-cli/context"
+	"github.com/github/gh-cli/git"
+	"github.com/github/gh-cli/utils"
+	"github.com/spf13/cobra"
+	"os"
+	"runtime"
+)
+
+var (
+	_draftF bool
+	_titleF string
+	_bodyF  string
+	_baseF  string
+)
+
+func prCreate(ctx context.Context) error {
+	ucc, err := git.UncommittedChangeCount()
+	if err != nil {
+		return fmt.Errorf(
+			"could not determine state of working directory: %v", err)
+	}
+	if ucc > 0 {
+		noun := "change"
+		if ucc > 1 {
+			noun = noun + "s"
+		}
+
+		fmt.Printf("%s %d uncommitted %s %s", utils.Red("!!!"),
+			ucc, noun, utils.Red("!!!"))
+	}
+
+	head, err := ctx.Branch()
+	if err != nil {
+		return fmt.Errorf("could not determine current branch: %s", err)
+	}
+
+	remote, err := guessRemote(ctx)
+	if err != nil {
+		return err
+	}
+
+	if err = git.Push(remote, fmt.Sprintf("HEAD:%s", head)); err != nil {
+		return fmt.Errorf("was not able to push to remote '%s': %s", remote, err)
+	}
+
+	interactive := _titleF == "" || _bodyF == ""
+
+	inProgress := struct {
+		Body  string
+		Title string
+	}{}
+
+	if interactive {
+		confirmed := false
+		editor := determineEditor()
+
+		for !confirmed {
+			titleQuestion := &survey.Question{
+				Name: "title",
+				Prompt: &survey.Input{
+					Message: "PR Title",
+					Default: inProgress.Title,
+				},
+			}
+			bodyQuestion := &survey.Question{
+				Name: "body",
+				Prompt: &survey.Editor{
+					Message:       fmt.Sprintf("PR Body (%s)", editor),
+					FileName:      "*.md",
+					Default:       inProgress.Body,
+					AppendDefault: true,
+					Editor:        editor,
+				},
+			}
+
+			qs := []*survey.Question{}
+			if _titleF == "" {
+				qs = append(qs, titleQuestion)
+			}
+			if _bodyF == "" {
+				qs = append(qs, bodyQuestion)
+			}
+
+			err := survey.Ask(qs, &inProgress)
+			if err != nil {
+				return fmt.Errorf("could not prompt: %s", err)
+			}
+			confirmAnswers := struct {
+				Confirmation string
+			}{}
+			confirmQs := []*survey.Question{
+				{
+					Name: "confirmation",
+					Prompt: &survey.Select{
+						Message: "Submit?",
+						Options: []string{
+							"Yes",
+							"Edit",
+							"Cancel",
+						},
+					},
+				},
+			}
+
+			err = survey.Ask(confirmQs, &confirmAnswers)
+			if err != nil {
+				return fmt.Errorf("could not prompt: %s", err)
+			}
+
+			switch confirmAnswers.Confirmation {
+			case "Yes":
+				confirmed = true
+			case "Edit":
+				continue
+			case "Cancel":
+				fmt.Println(utils.Red("Discarding PR."))
+				return nil
+			}
+		}
+	}
+
+	title := _titleF
+	if title == "" {
+		title = inProgress.Title
+	}
+	body := _bodyF
+	if body == "" {
+		body = inProgress.Body
+	}
+	base := _baseF
+	if base == "" {
+		base = "master"
+	}
+
+	client, err := apiClientForContext(ctx)
+	if err != nil {
+		return fmt.Errorf("could not initialize api client: %s", err)
+	}
+
+	repo, err := ctx.BaseRepo()
+	if err != nil {
+		return fmt.Errorf("could not determine GitHub repo: %s", err)
+	}
+
+	payload, err := api.CreatePullRequest(client, repo, title, body, _draftF, base, head)
+	if err != nil {
+		return fmt.Errorf("failed to create PR: %s", err)
+	}
+
+	fmt.Println(payload)
+
+	return nil
+}
+
+func guessRemote(ctx context.Context) (string, error) {
+	remotes, err := ctx.Remotes()
+	if err != nil {
+		return "", fmt.Errorf("could not determine suitable remote: %s", err)
+	}
+
+	remote, err := remotes.FindByName("origin", "github")
+	if err != nil {
+		return "", fmt.Errorf("could not determine suitable remote: %s", err)
+	}
+
+	return remote.Name, nil
+}
+
+func determineEditor() string {
+	if runtime.GOOS == "windows" {
+		return "notepad"
+	}
+	if v := os.Getenv("VISUAL"); v != "" {
+		return v
+	}
+	if e := os.Getenv("EDITOR"); e != "" {
+		return e
+	}
+	return "nano"
+}
+
+var prCreateCmd = &cobra.Command{
+	Use:   "create",
+	Short: "Create a pull request",
+	RunE: func(cmd *cobra.Command, args []string) error {
+		ctx := contextForCommand(cmd)
+		return prCreate(ctx)
+	},
+}
+
+func init() {
+	prCreateCmd.Flags().BoolVarP(&_draftF, "draft", "d", false,
+		"Mark PR as a draft")
+	prCreateCmd.Flags().StringVarP(&_titleF, "title", "t", "",
+		"Supply a title. Will prompt for one otherwise.")
+	prCreateCmd.Flags().StringVarP(&_bodyF, "body", "b", "",
+		"Supply a body. Will prompt for one otherwise.")
+	prCreateCmd.Flags().StringVarP(&_baseF, "base", "T", "",
+		"The branch into which you want your code merged")
+
+}