tea/cmd/pulls/checkout.go

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// Copyright 2020 The Gitea Authors. All rights reserved.
// Use of this source code is governed by a MIT-style
// license that can be found in the LICENSE file.
package pulls
import (
"fmt"
"log"
"code.gitea.io/tea/cmd/flags"
"code.gitea.io/tea/modules/config"
local_git "code.gitea.io/tea/modules/git"
"code.gitea.io/tea/modules/utils"
"code.gitea.io/sdk/gitea"
"github.com/go-git/go-git/v5"
"github.com/urfave/cli/v2"
)
// CmdPullsCheckout is a command to locally checkout the given PR
var CmdPullsCheckout = cli.Command{
Name: "checkout",
Usage: "Locally check out the given PR",
Description: `Locally check out the given PR`,
Action: runPullsCheckout,
ArgsUsage: "<pull index>",
Flags: flags.AllDefaultFlags,
}
func runPullsCheckout(ctx *cli.Context) error {
login, owner, repo := config.InitCommand(flags.GlobalRepoValue, flags.GlobalLoginValue, flags.GlobalRemoteValue)
if ctx.Args().Len() != 1 {
log.Fatal("Must specify a PR index")
}
idx, err := utils.ArgToIndex(ctx.Args().First())
if err != nil {
return err
}
localRepo, err := local_git.RepoForWorkdir()
if err != nil {
return err
}
localBranchName, remoteBranchName, newRemoteName, remoteURL, err :=
gitConfigForPR(localRepo, login, owner, repo, idx)
if err != nil {
return err
}
// verify related remote is in local repo, otherwise add it
localRemote, err := localRepo.GetOrCreateRemote(remoteURL, newRemoteName)
if err != nil {
return err
}
localRemoteName := localRemote.Config().Name
// get auth & fetch remote
fmt.Printf("Fetching PR %v (head %s:%s) from remote '%s'\n",
idx, remoteURL, remoteBranchName, localRemoteName)
url, err := local_git.ParseURL(remoteURL)
if err != nil {
return err
}
auth, err := local_git.GetAuthForURL(url, login.User, login.SSHKey)
if err != nil {
return err
}
err = localRemote.Fetch(&git.FetchOptions{Auth: auth})
if err == git.NoErrAlreadyUpToDate {
fmt.Println(err)
} else if err != nil {
return err
}
// checkout local branch
fmt.Printf("Creating branch '%s'\n", localBranchName)
err = localRepo.TeaCreateBranch(localBranchName, remoteBranchName, localRemoteName)
if err == git.ErrBranchExists {
fmt.Println("There may be changes since you last checked out, run `git pull` to get them.")
} else if err != nil {
return err
}
return localRepo.TeaCheckout(localBranchName)
}
func gitConfigForPR(repo *local_git.TeaRepo, login *config.Login, owner, repoName string, idx int64) (localBranch, remoteBranch, remoteName, remoteURL string, err error) {
// fetch PR source-repo & -branch from gitea
pr, _, err := login.Client().GetPullRequest(owner, repoName, idx)
if err != nil {
return
}
// test if we can pull via SSH, and configure git remote accordingly
remoteURL = pr.Head.Repository.CloneURL
keys, _, err := login.Client().ListMyPublicKeys(gitea.ListPublicKeysOptions{})
if err != nil {
return
}
if len(keys) != 0 {
remoteURL = pr.Head.Repository.SSHURL
}
// try to find a matching existing branch, otherwise return branch in pulls/ namespace
localBranch = fmt.Sprintf("pulls/%v-%v", idx, pr.Head.Ref)
if b, _ := repo.TeaFindBranchBySha(pr.Head.Sha, remoteURL); b != nil {
localBranch = b.Name
}
remoteBranch = pr.Head.Ref
remoteName = fmt.Sprintf("pulls/%v", pr.Head.Repository.Owner.UserName)
return
}