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// Copyright 2023 The Gitea Authors. All rights reserved.
// SPDX-License-Identifier: MIT
package pull
import (
"fmt"
repo_model "code.gitea.io/gitea/models/repo"
user_model "code.gitea.io/gitea/models/user"
"code.gitea.io/gitea/modules/container"
"code.gitea.io/gitea/modules/git"
"code.gitea.io/gitea/modules/gitrepo"
"code.gitea.io/gitea/modules/log"
"code.gitea.io/gitea/modules/setting"
)
// doMergeStyleSquash gets a commit author signature for squash commits
func getAuthorSignatureSquash(ctx *mergeContext) (*git.Signature, error) {
if err := ctx.pr.Issue.LoadPoster(ctx); err != nil {
log.Error("%-v Issue[%d].LoadPoster: %v", ctx.pr, ctx.pr.Issue.ID, err)
return nil, err
}
// Try to get an signature from the same user in one of the commits, as the
// poster email might be private or commits might have a different signature
// than the primary email address of the poster.
gitRepo, closer, err := gitrepo.RepositoryFromContextOrOpenPath(ctx, ctx.tmpBasePath)
if err != nil {
log.Error("%-v Unable to open base repository: %v", ctx.pr, err)
return nil, err
}
defer closer.Close()
commits, err := gitRepo.CommitsBetweenIDs(trackingBranch, "HEAD")
if err != nil {
log.Error("%-v Unable to get commits between: %s %s: %v", ctx.pr, "HEAD", trackingBranch, err)
return nil, err
}
uniqueEmails := make(container.Set[string])
for _, commit := range commits {
if commit.Author != nil && uniqueEmails.Add(commit.Author.Email) {
commitUser, _ := user_model.GetUserByEmail(ctx, commit.Author.Email)
if commitUser != nil && commitUser.ID == ctx.pr.Issue.Poster.ID {
return commit.Author, nil
}
}
}
return ctx.pr.Issue.Poster.NewGitSig(), nil
}
// doMergeStyleSquash squashes the tracking branch on the current HEAD (=base)
func doMergeStyleSquash(ctx *mergeContext, message string) error {
sig, err := getAuthorSignatureSquash(ctx)
if err != nil {
return fmt.Errorf("getAuthorSignatureSquash: %w", err)
}
cmdMerge := git.NewCommand(ctx, "merge", "--squash").AddDynamicArguments(trackingBranch)
if err := runMergeCommand(ctx, repo_model.MergeStyleSquash, cmdMerge); err != nil {
log.Error("%-v Unable to merge --squash tracking into base: %v", ctx.pr, err)
return err
}
if setting.Repository.PullRequest.AddCoCommitterTrailers && ctx.committer.String() != sig.String() {
// add trailer
message += fmt.Sprintf("\nCo-authored-by: %s\nCo-committed-by: %s\n", sig.String(), sig.String())
}
cmdCommit := git.NewCommand(ctx, "commit").
AddOptionFormat("--author='%s <%s>'", sig.Name, sig.Email).
AddOptionFormat("--message=%s", message)
if ctx.signKeyID == "" {
cmdCommit.AddArguments("--no-gpg-sign")
} else {
cmdCommit.AddOptionFormat("-S%s", ctx.signKeyID)
}
if err := cmdCommit.Run(ctx.RunOpts()); err != nil {
log.Error("git commit %-v: %v\n%s\n%s", ctx.pr, err, ctx.outbuf.String(), ctx.errbuf.String())
return fmt.Errorf("git commit [%s:%s -> %s:%s]: %w\n%s\n%s", ctx.pr.HeadRepo.FullName(), ctx.pr.HeadBranch, ctx.pr.BaseRepo.FullName(), ctx.pr.BaseBranch, err, ctx.outbuf.String(), ctx.errbuf.String())
}
ctx.outbuf.Reset()
ctx.errbuf.Reset()
return nil
}
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