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Append to existing trailers in generated squash commit message (#15980)

* Remove superfluous newline before Co-authored-by trailers

* Append to existing PR description trailer section

If the existing PR description message already contains a trailer section (e.g. Signed-off-by: ),
append to it instead of creating a new trailer section.

* Reuse compiled regexp

* Simplify regex and deal with trailing \n in PR description

* Add tests for CommitMessageTrailersPattern

- add support for Key:Value (no space after colon)
- add support for whitespace "folding"

* Update services/pull/pull_test.go

Co-authored-by: Norwin <noerw@users.noreply.github.com>

Co-authored-by: zeripath <art27@cantab.net>
Co-authored-by: Norwin <noerw@users.noreply.github.com>
Co-authored-by: Lunny Xiao <xiaolunwen@gmail.com>
Co-authored-by: techknowlogick <techknowlogick@gitea.io>
master
Jimmy Praet 1 year ago
committed by GitHub
parent
commit
06f483d0c4
No known key found for this signature in database GPG Key ID: 4AEE18F83AFDEB23
  1. 17
      services/pull/pull.go
  2. 23
      services/pull/pull_test.go

17
services/pull/pull.go

@ -9,6 +9,7 @@ import (
"bytes"
"context"
"fmt"
"regexp"
"strings"
"time"
@ -528,6 +529,8 @@ func CloseRepoBranchesPulls(doer *models.User, repo *models.Repository) error {
return nil
}
var commitMessageTrailersPattern = regexp.MustCompile(`(?:^|\n\n)(?:[\w-]+[ \t]*:[^\n]+\n*(?:[ \t]+[^\n]+\n*)*)+$`)
// GetSquashMergeCommitMessages returns the commit messages between head and merge base (if there is one)
func GetSquashMergeCommitMessages(pr *models.PullRequest) string {
if err := pr.LoadIssue(); err != nil {
@ -583,10 +586,13 @@ func GetSquashMergeCommitMessages(pr *models.PullRequest) string {
stringBuilder := strings.Builder{}
if !setting.Repository.PullRequest.PopulateSquashCommentWithCommitMessages {
stringBuilder.WriteString(pr.Issue.Content)
message := strings.TrimSpace(pr.Issue.Content)
stringBuilder.WriteString(message)
if stringBuilder.Len() > 0 {
stringBuilder.WriteRune('\n')
stringBuilder.WriteRune('\n')
if !commitMessageTrailersPattern.MatchString(message) {
stringBuilder.WriteRune('\n')
}
}
}
@ -657,13 +663,6 @@ func GetSquashMergeCommitMessages(pr *models.PullRequest) string {
}
}
if len(authors) > 0 {
if _, err := stringBuilder.WriteRune('\n'); err != nil {
log.Error("Unable to write to string builder Error: %v", err)
return ""
}
}
for _, author := range authors {
if _, err := stringBuilder.Write([]byte("Co-authored-by: ")); err != nil {
log.Error("Unable to write to string builder Error: %v", err)

23
services/pull/pull_test.go

@ -5,4 +5,27 @@
package pull
import (
"testing"
"github.com/stretchr/testify/assert"
)
// TODO TestPullRequest_PushToBaseRepo
func TestPullRequest_CommitMessageTrailersPattern(t *testing.T) {
// Not a valid trailer section
assert.False(t, commitMessageTrailersPattern.MatchString(""))
assert.False(t, commitMessageTrailersPattern.MatchString("No trailer."))
assert.False(t, commitMessageTrailersPattern.MatchString("Signed-off-by: Bob <bob@example.com>\nNot a trailer due to following text."))
assert.False(t, commitMessageTrailersPattern.MatchString("Message body not correctly separated from trailer section by empty line.\nSigned-off-by: Bob <bob@example.com>"))
// Valid trailer section
assert.True(t, commitMessageTrailersPattern.MatchString("Signed-off-by: Bob <bob@example.com>"))
assert.True(t, commitMessageTrailersPattern.MatchString("Signed-off-by: Bob <bob@example.com>\nOther-Trailer: Value"))
assert.True(t, commitMessageTrailersPattern.MatchString("Message body correctly separated from trailer section by empty line.\n\nSigned-off-by: Bob <bob@example.com>"))
assert.True(t, commitMessageTrailersPattern.MatchString("Multiple trailers.\n\nSigned-off-by: Bob <bob@example.com>\nOther-Trailer: Value"))
assert.True(t, commitMessageTrailersPattern.MatchString("Newline after trailer section.\n\nSigned-off-by: Bob <bob@example.com>\n"))
assert.True(t, commitMessageTrailersPattern.MatchString("No space after colon is accepted.\n\nSigned-off-by:Bob <bob@example.com>"))
assert.True(t, commitMessageTrailersPattern.MatchString("Additional whitespace is accepted.\n\nSigned-off-by \t : \tBob <bob@example.com> "))
assert.True(t, commitMessageTrailersPattern.MatchString("Folded value.\n\nFolded-trailer: This is\n a folded\n trailer value\nOther-Trailer: Value"))
}
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