5abe1c52de
* Display pull request head branch even the branch deleted or repository deleted * Merge getHeadRepo/loadHeadRepo and getBaseRepo/loadBaseRepo on pull and fill repo when pr.Issue.Repo is available * retrieve sha from pull head when pull request branch deleted and fix tests * Fix test * Ensure MustHeadRepoName returns empty string if no head repo Co-authored-by: zeripath <art27@cantab.net>
153 lines
6.6 KiB
Go
153 lines
6.6 KiB
Go
// Copyright 2019 The Gitea Authors.
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// All rights reserved.
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// Use of this source code is governed by a MIT-style
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// license that can be found in the LICENSE file.
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package pull
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import (
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"fmt"
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"os"
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"path/filepath"
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"strings"
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"code.gitea.io/gitea/models"
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"code.gitea.io/gitea/modules/git"
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"code.gitea.io/gitea/modules/log"
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)
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func createTemporaryRepo(pr *models.PullRequest) (string, error) {
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if err := pr.LoadHeadRepo(); err != nil {
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log.Error("LoadHeadRepo: %v", err)
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return "", fmt.Errorf("LoadHeadRepo: %v", err)
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} else if pr.HeadRepo == nil {
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log.Error("Pr %d HeadRepo %d does not exist", pr.ID, pr.HeadRepoID)
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return "", &models.ErrRepoNotExist{
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ID: pr.HeadRepoID,
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}
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} else if err := pr.LoadBaseRepo(); err != nil {
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log.Error("LoadBaseRepo: %v", err)
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return "", fmt.Errorf("LoadBaseRepo: %v", err)
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} else if pr.BaseRepo == nil {
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log.Error("Pr %d BaseRepo %d does not exist", pr.ID, pr.BaseRepoID)
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return "", &models.ErrRepoNotExist{
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ID: pr.BaseRepoID,
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}
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} else if err := pr.HeadRepo.GetOwner(); err != nil {
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log.Error("HeadRepo.GetOwner: %v", err)
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return "", fmt.Errorf("HeadRepo.GetOwner: %v", err)
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} else if err := pr.BaseRepo.GetOwner(); err != nil {
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log.Error("BaseRepo.GetOwner: %v", err)
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return "", fmt.Errorf("BaseRepo.GetOwner: %v", err)
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}
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// Clone base repo.
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tmpBasePath, err := models.CreateTemporaryPath("pull")
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if err != nil {
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log.Error("CreateTemporaryPath: %v", err)
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return "", err
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}
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baseRepoPath := pr.BaseRepo.RepoPath()
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headRepoPath := pr.HeadRepo.RepoPath()
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if err := git.InitRepository(tmpBasePath, false); err != nil {
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log.Error("git init tmpBasePath: %v", err)
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if err := models.RemoveTemporaryPath(tmpBasePath); err != nil {
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log.Error("CreateTempRepo: RemoveTemporaryPath: %s", err)
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}
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return "", err
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}
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remoteRepoName := "head_repo"
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baseBranch := "base"
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// Add head repo remote.
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addCacheRepo := func(staging, cache string) error {
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p := filepath.Join(staging, ".git", "objects", "info", "alternates")
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f, err := os.OpenFile(p, os.O_APPEND|os.O_CREATE|os.O_WRONLY, 0600)
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if err != nil {
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log.Error("Could not create .git/objects/info/alternates file in %s: %v", staging, err)
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return err
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}
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defer f.Close()
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data := filepath.Join(cache, "objects")
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if _, err := fmt.Fprintln(f, data); err != nil {
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log.Error("Could not write to .git/objects/info/alternates file in %s: %v", staging, err)
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return err
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}
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return nil
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}
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if err := addCacheRepo(tmpBasePath, baseRepoPath); err != nil {
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log.Error("Unable to add base repository to temporary repo [%s -> %s]: %v", pr.BaseRepo.FullName(), tmpBasePath, err)
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if err := models.RemoveTemporaryPath(tmpBasePath); err != nil {
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log.Error("CreateTempRepo: RemoveTemporaryPath: %s", err)
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}
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return "", fmt.Errorf("Unable to add base repository to temporary repo [%s -> tmpBasePath]: %v", pr.BaseRepo.FullName(), err)
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}
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var outbuf, errbuf strings.Builder
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if err := git.NewCommand("remote", "add", "-t", pr.BaseBranch, "-m", pr.BaseBranch, "origin", baseRepoPath).RunInDirPipeline(tmpBasePath, &outbuf, &errbuf); err != nil {
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log.Error("Unable to add base repository as origin [%s -> %s]: %v\n%s\n%s", pr.BaseRepo.FullName(), tmpBasePath, err, outbuf.String(), errbuf.String())
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if err := models.RemoveTemporaryPath(tmpBasePath); err != nil {
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log.Error("CreateTempRepo: RemoveTemporaryPath: %s", err)
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}
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return "", fmt.Errorf("Unable to add base repository as origin [%s -> tmpBasePath]: %v\n%s\n%s", pr.BaseRepo.FullName(), err, outbuf.String(), errbuf.String())
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}
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outbuf.Reset()
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errbuf.Reset()
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if err := git.NewCommand("fetch", "origin", "--no-tags", pr.BaseBranch+":"+baseBranch, pr.BaseBranch+":original_"+baseBranch).RunInDirPipeline(tmpBasePath, &outbuf, &errbuf); err != nil {
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log.Error("Unable to fetch origin base branch [%s:%s -> base, original_base in %s]: %v:\n%s\n%s", pr.BaseRepo.FullName(), pr.BaseBranch, tmpBasePath, err, outbuf.String(), errbuf.String())
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if err := models.RemoveTemporaryPath(tmpBasePath); err != nil {
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log.Error("CreateTempRepo: RemoveTemporaryPath: %s", err)
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}
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return "", fmt.Errorf("Unable to fetch origin base branch [%s:%s -> base, original_base in tmpBasePath]: %v\n%s\n%s", pr.BaseRepo.FullName(), pr.BaseBranch, err, outbuf.String(), errbuf.String())
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}
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outbuf.Reset()
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errbuf.Reset()
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if err := git.NewCommand("symbolic-ref", "HEAD", git.BranchPrefix+baseBranch).RunInDirPipeline(tmpBasePath, &outbuf, &errbuf); err != nil {
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log.Error("Unable to set HEAD as base branch [%s]: %v\n%s\n%s", tmpBasePath, err, outbuf.String(), errbuf.String())
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if err := models.RemoveTemporaryPath(tmpBasePath); err != nil {
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log.Error("CreateTempRepo: RemoveTemporaryPath: %s", err)
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}
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return "", fmt.Errorf("Unable to set HEAD as base branch [tmpBasePath]: %v\n%s\n%s", err, outbuf.String(), errbuf.String())
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}
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outbuf.Reset()
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errbuf.Reset()
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if err := addCacheRepo(tmpBasePath, headRepoPath); err != nil {
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log.Error("Unable to add head repository to temporary repo [%s -> %s]: %v", pr.HeadRepo.FullName(), tmpBasePath, err)
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if err := models.RemoveTemporaryPath(tmpBasePath); err != nil {
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log.Error("CreateTempRepo: RemoveTemporaryPath: %s", err)
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}
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return "", fmt.Errorf("Unable to head base repository to temporary repo [%s -> tmpBasePath]: %v", pr.HeadRepo.FullName(), err)
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}
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if err := git.NewCommand("remote", "add", remoteRepoName, headRepoPath).RunInDirPipeline(tmpBasePath, &outbuf, &errbuf); err != nil {
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log.Error("Unable to add head repository as head_repo [%s -> %s]: %v\n%s\n%s", pr.HeadRepo.FullName(), tmpBasePath, err, outbuf.String(), errbuf.String())
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if err := models.RemoveTemporaryPath(tmpBasePath); err != nil {
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log.Error("CreateTempRepo: RemoveTemporaryPath: %s", err)
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}
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return "", fmt.Errorf("Unable to add head repository as head_repo [%s -> tmpBasePath]: %v\n%s\n%s", pr.HeadRepo.FullName(), err, outbuf.String(), errbuf.String())
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}
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outbuf.Reset()
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errbuf.Reset()
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trackingBranch := "tracking"
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// Fetch head branch
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if err := git.NewCommand("fetch", "--no-tags", remoteRepoName, pr.HeadBranch+":"+trackingBranch).RunInDirPipeline(tmpBasePath, &outbuf, &errbuf); err != nil {
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log.Error("Unable to fetch head_repo head branch [%s:%s -> tracking in %s]: %v:\n%s\n%s", pr.HeadRepo.FullName(), pr.HeadBranch, tmpBasePath, err, outbuf.String(), errbuf.String())
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if err := models.RemoveTemporaryPath(tmpBasePath); err != nil {
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log.Error("CreateTempRepo: RemoveTemporaryPath: %s", err)
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}
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return "", fmt.Errorf("Unable to fetch head_repo head branch [%s:%s -> tracking in tmpBasePath]: %v\n%s\n%s", pr.HeadRepo.FullName(), pr.HeadBranch, err, outbuf.String(), errbuf.String())
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}
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outbuf.Reset()
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errbuf.Reset()
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return tmpBasePath, nil
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}
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