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package setupgit

import (

"fmt"

"strings"

"github.com/cli/cli/v2/internal/config"

"github.com/cli/cli/v2/pkg/cmd/auth/shared"

"github.com/cli/cli/v2/pkg/cmdutil"

"github.com/cli/cli/v2/pkg/iostreams"

"github.com/spf13/cobra"

)

type gitConfigurator interface {

Setup(hostname, username, authToken string) error

}

type SetupGitOptions struct {

IO *iostreams.IOStreams

Config func() (config.Config, error)

Hostname string

gitConfigure gitConfigurator

}

func NewCmdSetupGit(f *cmdutil.Factory, runF func(*SetupGitOptions) error) *cobra.Command {

opts := &SetupGitOptions{

IO: f.IOStreams,

Config: f.Config,

}

cmd := &cobra.Command{

Short: "Configure git to use GitHub CLI as a credential helper",

Use: "setup-git",

RunE: func(cmd *cobra.Command, args []string) error {

opts.gitConfigure = &shared.GitCredentialFlow{

Executable: f.Executable(),

}

if runF != nil {

return runF(opts)

}

return setupGitRun(opts)

},

}

cmd.Flags().StringVarP(&opts.Hostname, "hostname", "h", "", "The hostname to configure git for")

return cmd

}

func setupGitRun(opts *SetupGitOptions) error {

cfg, err := opts.Config()

if err != nil {

return err

}

hostnames := cfg.Hosts()

stderr := opts.IO.ErrOut

cs := opts.IO.ColorScheme()

if len(hostnames) == 0 {

fmt.Fprintf(

stderr,

"You are not logged into any GitHub hosts. Run %s to authenticate.\n",

cs.Bold("gh auth login"),

)

return cmdutil.SilentError

}

hostnamesToSetup := hostnames

if opts.Hostname != "" {

if !has(opts.Hostname, hostnames) {

return fmt.Errorf("You are not logged into the GitHub host %q\n", opts.Hostname)

}

hostnamesToSetup = []string{opts.Hostname}

}

for _, hostname := range hostnamesToSetup {

if err := opts.gitConfigure.Setup(hostname, "", ""); err != nil {

return fmt.Errorf("failed to set up git credential helper: %w", err)

}

}

return nil

}

func has(needle string, haystack []string) bool {

for _, s := range haystack {

if strings.EqualFold(s, needle) {

return true

}

}

return false

}