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default.go
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package factory
import (
"errors"
"fmt"
"net/http"
"os"
"time"
"github.com/cli/cli/v2/api"
"github.com/cli/cli/v2/context"
"github.com/cli/cli/v2/git"
"github.com/cli/cli/v2/internal/config"
"github.com/cli/cli/v2/internal/ghrepo"
"github.com/cli/cli/v2/pkg/cmd/extension"
"github.com/cli/cli/v2/pkg/cmdutil"
"github.com/cli/cli/v2/pkg/iostreams"
)
func New(appVersion string) *cmdutil.Factory {
f := &cmdutil.Factory{
Config: configFunc(), // No factory dependencies
Branch: branchFunc(), // No factory dependencies
ExecutableName: "gh",
}
f.IOStreams = ioStreams(f) // Depends on Config
f.HttpClient = httpClientFunc(f, appVersion) // Depends on Config, IOStreams, and appVersion
f.Remotes = remotesFunc(f) // Depends on Config
f.BaseRepo = BaseRepoFunc(f) // Depends on Remotes
f.Browser = browser(f) // Depends on Config, and IOStreams
f.ExtensionManager = extensionManager(f) // Depends on Config, HttpClient, and IOStreams
return f
}
func BaseRepoFunc(f *cmdutil.Factory) func() (ghrepo.Interface, error) {
return func() (ghrepo.Interface, error) {
remotes, err := f.Remotes()
if err != nil {
return nil, err
}
return remotes[0], nil
}
}
func SmartBaseRepoFunc(f *cmdutil.Factory) func() (ghrepo.Interface, error) {
return func() (ghrepo.Interface, error) {
httpClient, err := f.HttpClient()
if err != nil {
return nil, err
}
apiClient := api.NewClientFromHTTP(httpClient)
remotes, err := f.Remotes()
if err != nil {
return nil, err
}
repoContext, err := context.ResolveRemotesToRepos(remotes, apiClient, "")
if err != nil {
return nil, err
}
baseRepo, err := repoContext.BaseRepo(f.IOStreams)
if err != nil {
return nil, err
}
return baseRepo, nil
}
}
func remotesFunc(f *cmdutil.Factory) func() (context.Remotes, error) {
rr := &remoteResolver{
readRemotes: git.Remotes,
getConfig: f.Config,
}
return rr.Resolver()
}
func httpClientFunc(f *cmdutil.Factory, appVersion string) func() (*http.Client, error) {
return func() (*http.Client, error) {
io := f.IOStreams
cfg, err := f.Config()
if err != nil {
return nil, err
}
return NewHTTPClient(io, cfg, appVersion, true)
}
}
func browser(f *cmdutil.Factory) cmdutil.Browser {
io := f.IOStreams
return cmdutil.NewBrowser(browserLauncher(f), io.Out, io.ErrOut)
}
// Browser precedence
// 1. GH_BROWSER
// 2. browser from config
// 3. BROWSER
func browserLauncher(f *cmdutil.Factory) string {
if ghBrowser := os.Getenv("GH_BROWSER"); ghBrowser != "" {
return ghBrowser
}
cfg, err := f.Config()
if err == nil {
if cfgBrowser, _ := cfg.Get("", "browser"); cfgBrowser != "" {
return cfgBrowser
}
}
return os.Getenv("BROWSER")
}
func configFunc() func() (config.Config, error) {
var cachedConfig config.Config
var configError error
return func() (config.Config, error) {
if cachedConfig != nil || configError != nil {
return cachedConfig, configError
}
cachedConfig, configError = config.ParseDefaultConfig()
if errors.Is(configError, os.ErrNotExist) {
cachedConfig = config.NewBlankConfig()
configError = nil
}
cachedConfig = config.InheritEnv(cachedConfig)
return cachedConfig, configError
}
}
func branchFunc() func() (string, error) {
return func() (string, error) {
currentBranch, err := git.CurrentBranch()
if err != nil {
return "", fmt.Errorf("could not determine current branch: %w", err)
}
return currentBranch, nil
}
}
func extensionManager(f *cmdutil.Factory) *extension.Manager {
em := extension.NewManager(f.IOStreams)
cfg, err := f.Config()
if err != nil {
return em
}
em.SetConfig(cfg)
client, err := f.HttpClient()
if err != nil {
return em
}
em.SetClient(api.NewCachedClient(client, time.Second*30))
return em
}
func ioStreams(f *cmdutil.Factory) *iostreams.IOStreams {
io := iostreams.System()
cfg, err := f.Config()
if err != nil {
return io
}
if prompt, _ := cfg.GetOrDefault("", "prompt"); prompt == "disabled" {
io.SetNeverPrompt(true)
}
// Pager precedence
// 1. GH_PAGER
// 2. pager from config
// 3. PAGER
if ghPager, ghPagerExists := os.LookupEnv("GH_PAGER"); ghPagerExists {
io.SetPager(ghPager)
} else if pager, _ := cfg.Get("", "pager"); pager != "" {
io.SetPager(pager)
}
return io
}