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Fix a couple of CommentAsPatch issues. (#14804) (#14820)

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Backport #14804

* CutDiffAroundLine makes the incorrect assumption that `---` and `+++` always represent part of the header of a diff.

This PR adds a flag to its parsing to prevent this problem and adds a streaming parsing technique to CutDiffAroundLine using an io.pipe instead of just sending data to an unbounded buffer.

Fix #14711

* Handle unquoted comment patch files

When making comment patches unfortunately the patch does not always quote the filename
This makes the diff --git header ambiguous again.

This PR finally adds handling for ambiguity in to parse patch

Fix #14812

* Add in testing for no error

There is no way currently for CutDiffAroundLine in this test to cause an
error however, it should still be tested.

Signed-off-by: Andrew Thornton <art27@cantab.net>
This commit is contained in:
zeripath 2021-02-28 13:19:51 +00:00 • committed by GitHub
parent 90bf1e7961
commit be25afc6de
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GPG key ID: 4AEE18F83AFDEB23
6 changed files with 270 additions and 41 deletions
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22
modules/migrations/gitea_uploader.go
View file

@ -6,7 +6,6 @@
package migrations
import (
"bytes"
"context"
"fmt"
"io"
@ -811,13 +810,20 @@ func (g *GiteaLocalUploader) CreateReviews(reviews ...*base.Review) error {
}
var patch string
patchBuf := new(bytes.Buffer)
if err := git.GetRepoRawDiffForFile(g.gitRepo, pr.MergeBase, headCommitID, git.RawDiffNormal, comment.TreePath, patchBuf); err != nil {
// We should ignore the error since the commit maybe removed when force push to the pull request
log.Warn("GetRepoRawDiffForFile failed when migrating [%s, %s, %s, %s]: %v", g.gitRepo.Path, pr.MergeBase, headCommitID, comment.TreePath, err)
} else {
patch = git.CutDiffAroundLine(patchBuf, int64((&models.Comment{Line: int64(line + comment.Position - 1)}).UnsignedLine()), line < 0, setting.UI.CodeCommentLines)
}
reader, writer := io.Pipe()
defer func() {
_ = reader.Close()
_ = writer.Close()
}()
go func() {
if err := git.GetRepoRawDiffForFile(g.gitRepo, pr.MergeBase, headCommitID, git.RawDiffNormal, comment.TreePath, writer); err != nil {
// We should ignore the error since the commit maybe removed when force push to the pull request
log.Warn("GetRepoRawDiffForFile failed when migrating [%s, %s, %s, %s]: %v", g.gitRepo.Path, pr.MergeBase, headCommitID, comment.TreePath, err)
}
_ = writer.Close()
}()
patch, _ = git.CutDiffAroundLine(reader, int64((&models.Comment{Line: int64(line + comment.Position - 1)}).UnsignedLine()), line < 0, setting.UI.CodeCommentLines)
var c = models.Comment{
Type: models.CommentTypeCode,