Prevent dangling GetAttribute calls (#18754)

It appears possible that there could be a hang due to unread data from the
repo-attribute command pipes. This PR simply closes these during the defer.

Signed-off-by: Andrew Thornton <art27@cantab.net>
This commit is contained in:
zeripath 2022-02-14 17:03:56 +00:00 committed by GitHub
parent 5348e198db
commit 4482f62a26
No known key found for this signature in database
GPG key ID: 4AEE18F83AFDEB23
3 changed files with 13 additions and 7 deletions

View file

@ -185,7 +185,8 @@ func (c *CheckAttributeReader) Init(ctx context.Context) error {
// Run run cmd
func (c *CheckAttributeReader) Run() error {
defer func() {
_ = c.Close()
_ = c.stdinReader.Close()
_ = c.stdOut.Close()
}()
stdErr := new(bytes.Buffer)
err := c.cmd.RunWithContext(&RunContext{
@ -196,14 +197,17 @@ func (c *CheckAttributeReader) Run() error {
Stdout: c.stdOut,
Stderr: stdErr,
PipelineFunc: func(_ context.Context, _ context.CancelFunc) error {
close(c.running)
select {
case <-c.running:
default:
close(c.running)
}
return nil
},
})
if err != nil && c.ctx.Err() != nil && err.Error() != "signal: killed" {
return fmt.Errorf("failed to run attr-check. Error: %w\nStderr: %s", err, stdErr.String())
}
return nil
}
@ -243,10 +247,8 @@ func (c *CheckAttributeReader) CheckPath(path string) (rs map[string]string, err
// Close close pip after use
func (c *CheckAttributeReader) Close() error {
err := c.stdinWriter.Close()
_ = c.stdinReader.Close()
_ = c.stdOut.Close()
c.cancel()
err := c.stdinWriter.Close()
select {
case <-c.running:
default:

View file

@ -88,7 +88,10 @@ func (repo *Repository) GetLanguageStats(commitID string) (map[string]int64, err
}
}()
}
defer cancel()
defer func() {
_ = checker.Close()
cancel()
}()
}
}

View file

@ -1422,6 +1422,7 @@ func GetDiff(gitRepo *git.Repository, opts *DiffOptions, files ...string) (*Diff
}()
}
defer func() {
_ = checker.Close()
cancel()
}()
}