475 lines
14 KiB
Go
475 lines
14 KiB
Go
package create
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import (
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"errors"
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"fmt"
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"net/http"
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"strings"
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"time"
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"github.com/MakeNowJust/heredoc"
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"github.com/cli/cli/api"
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"github.com/cli/cli/context"
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"github.com/cli/cli/git"
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"github.com/cli/cli/internal/config"
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"github.com/cli/cli/internal/ghrepo"
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"github.com/cli/cli/pkg/cmd/pr/shared"
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"github.com/cli/cli/pkg/cmdutil"
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"github.com/cli/cli/pkg/githubtemplate"
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"github.com/cli/cli/pkg/iostreams"
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"github.com/cli/cli/utils"
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"github.com/spf13/cobra"
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)
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type CreateOptions struct {
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HttpClient func() (*http.Client, error)
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Config func() (config.Config, error)
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IO *iostreams.IOStreams
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Remotes func() (context.Remotes, error)
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Branch func() (string, error)
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RootDirOverride string
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RepoOverride string
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Autofill bool
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WebMode bool
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IsDraft bool
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Title string
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TitleProvided bool
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Body string
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BodyProvided bool
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BaseBranch string
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Reviewers []string
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Assignees []string
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Labels []string
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Projects []string
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Milestone string
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}
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func NewCmdCreate(f *cmdutil.Factory, runF func(*CreateOptions) error) *cobra.Command {
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opts := &CreateOptions{
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IO: f.IOStreams,
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HttpClient: f.HttpClient,
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Config: f.Config,
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Remotes: f.Remotes,
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Branch: f.Branch,
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}
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cmd := &cobra.Command{
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Use: "create",
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Short: "Create a pull request",
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Example: heredoc.Doc(`
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$ gh pr create --title "The bug is fixed" --body "Everything works again"
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$ gh issue create --label "bug,help wanted"
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$ gh issue create --label bug --label "help wanted"
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$ gh pr create --reviewer monalisa,hubot
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$ gh pr create --project "Roadmap"
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$ gh pr create --base develop
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`),
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Args: cmdutil.NoArgsQuoteReminder,
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RunE: func(cmd *cobra.Command, args []string) error {
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opts.TitleProvided = cmd.Flags().Changed("title")
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opts.BodyProvided = cmd.Flags().Changed("body")
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opts.RepoOverride, _ = cmd.Flags().GetString("repo")
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isTerminal := opts.IO.IsStdinTTY() && opts.IO.IsStdoutTTY()
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if !isTerminal && !opts.WebMode && !opts.TitleProvided && !opts.Autofill {
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return errors.New("--title or --fill required when not attached to a terminal")
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}
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if opts.IsDraft && opts.WebMode {
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return errors.New("the --draft flag is not supported with --web")
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}
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if len(opts.Reviewers) > 0 && opts.WebMode {
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return errors.New("the --reviewer flag is not supported with --web")
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}
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if runF != nil {
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return runF(opts)
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}
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return createRun(opts)
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},
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}
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fl := cmd.Flags()
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fl.BoolVarP(&opts.IsDraft, "draft", "d", false, "Mark pull request as a draft")
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fl.StringVarP(&opts.Title, "title", "t", "", "Supply a title. Will prompt for one otherwise.")
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fl.StringVarP(&opts.Body, "body", "b", "", "Supply a body. Will prompt for one otherwise.")
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fl.StringVarP(&opts.BaseBranch, "base", "B", "", "The branch into which you want your code merged")
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fl.BoolVarP(&opts.WebMode, "web", "w", false, "Open the web browser to create a pull request")
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fl.BoolVarP(&opts.Autofill, "fill", "f", false, "Do not prompt for title/body and just use commit info")
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fl.StringSliceVarP(&opts.Reviewers, "reviewer", "r", nil, "Request reviews from people by their `login`")
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fl.StringSliceVarP(&opts.Assignees, "assignee", "a", nil, "Assign people by their `login`")
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fl.StringSliceVarP(&opts.Labels, "label", "l", nil, "Add labels by `name`")
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fl.StringSliceVarP(&opts.Projects, "project", "p", nil, "Add the pull request to projects by `name`")
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fl.StringVarP(&opts.Milestone, "milestone", "m", "", "Add the pull request to a milestone by `name`")
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return cmd
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}
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func createRun(opts *CreateOptions) error {
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httpClient, err := opts.HttpClient()
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if err != nil {
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return err
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}
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client := api.NewClientFromHTTP(httpClient)
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remotes, err := opts.Remotes()
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if err != nil {
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return err
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}
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repoContext, err := context.ResolveRemotesToRepos(remotes, client, opts.RepoOverride)
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if err != nil {
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return err
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}
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baseRepo, err := repoContext.BaseRepo()
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if err != nil {
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return fmt.Errorf("could not determine base repository: %w", err)
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}
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headBranch, err := opts.Branch()
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if err != nil {
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return fmt.Errorf("could not determine the current branch: %w", err)
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}
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var headRepo ghrepo.Interface
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var headRemote *context.Remote
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// determine whether the head branch is already pushed to a remote
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headBranchPushedTo := determineTrackingBranch(remotes, headBranch)
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if headBranchPushedTo != nil {
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for _, r := range remotes {
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if r.Name != headBranchPushedTo.RemoteName {
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continue
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}
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headRepo = r
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headRemote = r
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break
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}
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}
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// otherwise, determine the head repository with info obtained from the API
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if headRepo == nil {
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if r, err := repoContext.HeadRepo(); err == nil {
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headRepo = r
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}
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}
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baseBranch := opts.BaseBranch
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if baseBranch == "" {
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baseBranch = baseRepo.DefaultBranchRef.Name
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}
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if headBranch == baseBranch && headRepo != nil && ghrepo.IsSame(baseRepo, headRepo) {
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return fmt.Errorf("must be on a branch named differently than %q", baseBranch)
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}
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if ucc, err := git.UncommittedChangeCount(); err == nil && ucc > 0 {
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fmt.Fprintf(opts.IO.ErrOut, "Warning: %s\n", utils.Pluralize(ucc, "uncommitted change"))
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}
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var milestoneTitles []string
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if opts.Milestone != "" {
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milestoneTitles = []string{opts.Milestone}
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}
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baseTrackingBranch := baseBranch
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if baseRemote, err := remotes.FindByRepo(baseRepo.RepoOwner(), baseRepo.RepoName()); err == nil {
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baseTrackingBranch = fmt.Sprintf("%s/%s", baseRemote.Name, baseBranch)
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}
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defs, defaultsErr := computeDefaults(baseTrackingBranch, headBranch)
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title := opts.Title
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body := opts.Body
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action := shared.SubmitAction
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if opts.WebMode {
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action = shared.PreviewAction
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if (title == "" || body == "") && defaultsErr != nil {
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return fmt.Errorf("could not compute title or body defaults: %w", defaultsErr)
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}
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} else if opts.Autofill {
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if defaultsErr != nil {
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return fmt.Errorf("could not compute title or body defaults: %w", defaultsErr)
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}
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title = defs.Title
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body = defs.Body
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}
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if !opts.WebMode {
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headBranchLabel := headBranch
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if headRepo != nil && !ghrepo.IsSame(baseRepo, headRepo) {
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headBranchLabel = fmt.Sprintf("%s:%s", headRepo.RepoOwner(), headBranch)
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}
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existingPR, err := api.PullRequestForBranch(client, baseRepo, baseBranch, headBranchLabel)
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var notFound *api.NotFoundError
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if err != nil && !errors.As(err, ¬Found) {
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return fmt.Errorf("error checking for existing pull request: %w", err)
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}
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if err == nil {
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return fmt.Errorf("a pull request for branch %q into branch %q already exists:\n%s", headBranchLabel, baseBranch, existingPR.URL)
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}
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}
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isTerminal := opts.IO.IsStdinTTY() && opts.IO.IsStdoutTTY()
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if !opts.WebMode && !opts.Autofill {
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message := "\nCreating pull request for %s into %s in %s\n\n"
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if opts.IsDraft {
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message = "\nCreating draft pull request for %s into %s in %s\n\n"
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}
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if isTerminal {
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fmt.Fprintf(opts.IO.ErrOut, message,
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utils.Cyan(headBranch),
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utils.Cyan(baseBranch),
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ghrepo.FullName(baseRepo))
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if (title == "" || body == "") && defaultsErr != nil {
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fmt.Fprintf(opts.IO.ErrOut, "%s warning: could not compute title or body defaults: %s\n", utils.Yellow("!"), defaultsErr)
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}
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}
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}
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tb := shared.IssueMetadataState{
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Type: shared.PRMetadata,
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Reviewers: opts.Reviewers,
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Assignees: opts.Assignees,
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Labels: opts.Labels,
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Projects: opts.Projects,
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Milestones: milestoneTitles,
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}
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interactive := isTerminal && !(opts.TitleProvided && opts.BodyProvided)
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if !opts.WebMode && !opts.Autofill && interactive {
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var nonLegacyTemplateFiles []string
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var legacyTemplateFile *string
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if opts.RootDirOverride != "" {
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nonLegacyTemplateFiles = githubtemplate.FindNonLegacy(opts.RootDirOverride, "PULL_REQUEST_TEMPLATE")
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legacyTemplateFile = githubtemplate.FindLegacy(opts.RootDirOverride, "PULL_REQUEST_TEMPLATE")
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} else if rootDir, err := git.ToplevelDir(); err == nil {
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nonLegacyTemplateFiles = githubtemplate.FindNonLegacy(rootDir, "PULL_REQUEST_TEMPLATE")
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legacyTemplateFile = githubtemplate.FindLegacy(rootDir, "PULL_REQUEST_TEMPLATE")
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}
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editorCommand, err := cmdutil.DetermineEditor(opts.Config)
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if err != nil {
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return err
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}
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err = shared.TitleBodySurvey(opts.IO, editorCommand, &tb, client, baseRepo, title, body, defs, nonLegacyTemplateFiles, legacyTemplateFile, true, baseRepo.ViewerCanTriage())
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if err != nil {
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return fmt.Errorf("could not collect title and/or body: %w", err)
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}
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action = tb.Action
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if action == shared.CancelAction {
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fmt.Fprintln(opts.IO.ErrOut, "Discarding.")
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return nil
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}
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if title == "" {
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title = tb.Title
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}
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if body == "" {
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body = tb.Body
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}
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}
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if action == shared.SubmitAction && title == "" {
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return errors.New("pull request title must not be blank")
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}
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didForkRepo := false
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// if a head repository could not be determined so far, automatically create
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// one by forking the base repository
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if headRepo == nil {
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if baseRepo.IsPrivate {
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return fmt.Errorf("cannot fork private repository '%s'", ghrepo.FullName(baseRepo))
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}
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headRepo, err = api.ForkRepo(client, baseRepo)
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if err != nil {
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return fmt.Errorf("error forking repo: %w", err)
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}
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didForkRepo = true
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}
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headBranchLabel := headBranch
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if !ghrepo.IsSame(baseRepo, headRepo) {
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headBranchLabel = fmt.Sprintf("%s:%s", headRepo.RepoOwner(), headBranch)
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}
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if headRemote == nil {
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headRemote, _ = repoContext.RemoteForRepo(headRepo)
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}
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// There are two cases when an existing remote for the head repo will be
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// missing:
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// 1. the head repo was just created by auto-forking;
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// 2. an existing fork was discovered by quering the API.
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//
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// In either case, we want to add the head repo as a new git remote so we
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// can push to it.
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if headRemote == nil {
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cfg, err := opts.Config()
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if err != nil {
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return err
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}
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cloneProtocol, _ := cfg.Get(headRepo.RepoHost(), "git_protocol")
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headRepoURL := ghrepo.FormatRemoteURL(headRepo, cloneProtocol)
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// TODO: prevent clashes with another remote of a same name
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gitRemote, err := git.AddRemote("fork", headRepoURL)
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if err != nil {
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return fmt.Errorf("error adding remote: %w", err)
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}
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headRemote = &context.Remote{
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Remote: gitRemote,
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Repo: headRepo,
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}
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}
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// automatically push the branch if it hasn't been pushed anywhere yet
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if headBranchPushedTo == nil {
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pushTries := 0
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maxPushTries := 3
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for {
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if err := git.Push(headRemote.Name, fmt.Sprintf("HEAD:%s", headBranch)); err != nil {
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if didForkRepo && pushTries < maxPushTries {
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pushTries++
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// first wait 2 seconds after forking, then 4s, then 6s
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waitSeconds := 2 * pushTries
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fmt.Fprintf(opts.IO.ErrOut, "waiting %s before retrying...\n", utils.Pluralize(waitSeconds, "second"))
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time.Sleep(time.Duration(waitSeconds) * time.Second)
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continue
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}
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return err
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}
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break
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}
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}
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if action == shared.SubmitAction {
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params := map[string]interface{}{
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"title": title,
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"body": body,
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"draft": opts.IsDraft,
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"baseRefName": baseBranch,
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"headRefName": headBranchLabel,
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}
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err = shared.AddMetadataToIssueParams(client, baseRepo, params, &tb)
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if err != nil {
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return err
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}
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pr, err := api.CreatePullRequest(client, baseRepo, params)
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if pr != nil {
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fmt.Fprintln(opts.IO.Out, pr.URL)
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}
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if err != nil {
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if pr != nil {
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return fmt.Errorf("pull request update failed: %w", err)
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}
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return fmt.Errorf("pull request create failed: %w", err)
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}
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} else if action == shared.PreviewAction {
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openURL, err := generateCompareURL(baseRepo, baseBranch, headBranchLabel, title, body, tb.Assignees, tb.Labels, tb.Projects, tb.Milestones)
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if err != nil {
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return err
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}
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if isTerminal {
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fmt.Fprintf(opts.IO.ErrOut, "Opening %s in your browser.\n", utils.DisplayURL(openURL))
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}
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return utils.OpenInBrowser(openURL)
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} else {
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panic("Unreachable state")
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}
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return nil
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}
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func computeDefaults(baseRef, headRef string) (shared.Defaults, error) {
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out := shared.Defaults{}
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commits, err := git.Commits(baseRef, headRef)
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if err != nil {
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return out, err
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}
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if len(commits) == 1 {
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out.Title = commits[0].Title
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body, err := git.CommitBody(commits[0].Sha)
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if err != nil {
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return out, err
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}
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out.Body = body
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} else {
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out.Title = utils.Humanize(headRef)
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body := ""
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for i := len(commits) - 1; i >= 0; i-- {
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body += fmt.Sprintf("- %s\n", commits[i].Title)
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}
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out.Body = body
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}
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return out, nil
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}
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func determineTrackingBranch(remotes context.Remotes, headBranch string) *git.TrackingRef {
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refsForLookup := []string{"HEAD"}
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var trackingRefs []git.TrackingRef
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headBranchConfig := git.ReadBranchConfig(headBranch)
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if headBranchConfig.RemoteName != "" {
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tr := git.TrackingRef{
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RemoteName: headBranchConfig.RemoteName,
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BranchName: strings.TrimPrefix(headBranchConfig.MergeRef, "refs/heads/"),
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}
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trackingRefs = append(trackingRefs, tr)
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refsForLookup = append(refsForLookup, tr.String())
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}
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for _, remote := range remotes {
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tr := git.TrackingRef{
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RemoteName: remote.Name,
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BranchName: headBranch,
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}
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trackingRefs = append(trackingRefs, tr)
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refsForLookup = append(refsForLookup, tr.String())
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}
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resolvedRefs, _ := git.ShowRefs(refsForLookup...)
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if len(resolvedRefs) > 1 {
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for _, r := range resolvedRefs[1:] {
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if r.Hash != resolvedRefs[0].Hash {
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continue
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}
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for _, tr := range trackingRefs {
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if tr.String() != r.Name {
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continue
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}
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return &tr
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}
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}
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}
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return nil
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}
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func generateCompareURL(r ghrepo.Interface, base, head, title, body string, assignees, labels, projects []string, milestones []string) (string, error) {
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u := ghrepo.GenerateRepoURL(r, "compare/%s...%s?expand=1", base, head)
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url, err := shared.WithPrAndIssueQueryParams(u, title, body, assignees, labels, projects, milestones)
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if err != nil {
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return "", err
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}
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return url, nil
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}
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