tea/modules/task/pull_create.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 task
import (
"fmt"
"log"
"strings"
"code.gitea.io/sdk/gitea"
"code.gitea.io/tea/modules/config"
local_git "code.gitea.io/tea/modules/git"
"code.gitea.io/tea/modules/print"
"code.gitea.io/tea/modules/utils"
"github.com/go-git/go-git/v5"
)
// CreatePull creates a PR in the given repo and prints the result
func CreatePull(login *config.Login, repoOwner, repoName, base, head, title, description string) error {
// open local git repo
localRepo, err := local_git.RepoForWorkdir()
if err != nil {
log.Fatal("could not open local repo: ", err)
}
// push if possible
log.Println("git push")
err = localRepo.Push(&git.PushOptions{})
if err != nil && err != git.NoErrAlreadyUpToDate {
log.Printf("Error occurred during 'git push':\n%s\n", err.Error())
}
// default is default branch
if len(base) == 0 {
base, err = GetDefaultPRBase(login, repoOwner, repoName)
if err != nil {
return err
}
}
// default is current one
if len(head) == 0 {
headOwner, headBranch, err := GetDefaultPRHead(localRepo)
if err != nil {
return err
}
head = GetHeadSpec(headOwner, headBranch, repoOwner)
}
// head & base may not be the same
if head == base {
return fmt.Errorf("can't create PR from %s to %s", head, base)
}
// default is head branch name
if len(title) == 0 {
title = GetDefaultPRTitle(head)
}
// title is required
if len(title) == 0 {
return fmt.Errorf("Title is required")
}
pr, _, err := login.Client().CreatePullRequest(repoOwner, repoName, gitea.CreatePullRequestOption{
Head: head,
Base: base,
Title: title,
Body: description,
})
if err != nil {
log.Fatalf("could not create PR from %s to %s:%s: %s", head, repoOwner, base, err)
}
print.PullDetails(pr, nil)
fmt.Println(pr.HTMLURL)
return err
}
// GetDefaultPRBase retrieves the default base branch for the given repo
func GetDefaultPRBase(login *config.Login, owner, repo string) (string, error) {
meta, _, err := login.Client().GetRepo(owner, repo)
if err != nil {
return "", fmt.Errorf("could not fetch repo meta: %s", err)
}
return meta.DefaultBranch, nil
}
// GetDefaultPRHead uses the currently checked out branch, checks if
// a remote currently holds the commit it points to, extracts the owner
// from its URL, and assembles the result to a valid head spec for gitea.
func GetDefaultPRHead(localRepo *local_git.TeaRepo) (owner, branch string, err error) {
headBranch, err := localRepo.Head()
if err != nil {
return
}
sha := headBranch.Hash().String()
remote, err := localRepo.TeaFindBranchRemote("", sha)
if err != nil {
err = fmt.Errorf("could not determine remote for current branch: %s", err)
return
}
if remote == nil {
// if no remote branch is found for the local hash, we abort:
// user has probably not configured a remote for the local branch,
// or local branch does not represent remote state.
err = fmt.Errorf("no matching remote found for this branch. try git push -u <remote> <branch>")
return
}
branch, err = localRepo.TeaGetCurrentBranchName()
if err != nil {
return
}
url, err := local_git.ParseURL(remote.Config().URLs[0])
if err != nil {
return
}
owner, _ = utils.GetOwnerAndRepo(strings.TrimLeft(url.Path, "/"), "")
return
}
// GetHeadSpec creates a head string as expected by gitea API
func GetHeadSpec(owner, branch, baseOwner string) string {
if len(owner) != 0 && owner != baseOwner {
return fmt.Sprintf("%s:%s", owner, branch)
}
return branch
}
// GetDefaultPRTitle transforms a string like a branchname to a readable text
func GetDefaultPRTitle(head string) string {
title := head
if strings.Contains(title, ":") {
title = strings.SplitN(title, ":", 2)[1]
}
title = strings.Replace(title, "-", " ", -1)
title = strings.Replace(title, "_", " ", -1)
title = strings.Title(strings.ToLower(title))
return title
}