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Prevent panic in doctor command when running default checks (#21791) #21807

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merged 1 commit into from
Nov 14, 2022
Merged

Prevent panic in doctor command when running default checks (#21791) #21807

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10 changes: 4 additions & 6 deletions modules/doctor/heads.go
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Original file line number Diff line number Diff line change
Expand Up @@ -19,11 +19,9 @@ func synchronizeRepoHeads(ctx context.Context, logger log.Logger, autofix bool)
numReposUpdated := 0
err := iterateRepositories(ctx, func(repo *repo_model.Repository) error {
numRepos++
runOpts := &git.RunOpts{Dir: repo.RepoPath()}
_, _, defaultBranchErr := git.NewCommand(ctx, "rev-parse").AddDashesAndList(repo.DefaultBranch).RunStdString(&git.RunOpts{Dir: repo.RepoPath()})

_, _, defaultBranchErr := git.NewCommand(ctx, "rev-parse").AddDashesAndList(repo.DefaultBranch).RunStdString(runOpts)

head, _, headErr := git.NewCommand(ctx, "symbolic-ref", "--short", "HEAD").RunStdString(runOpts)
head, _, headErr := git.NewCommand(ctx, "symbolic-ref", "--short", "HEAD").RunStdString(&git.RunOpts{Dir: repo.RepoPath()})

// what we expect: default branch is valid, and HEAD points to it
if headErr == nil && defaultBranchErr == nil && head == repo.DefaultBranch {
Expand All @@ -49,7 +47,7 @@ func synchronizeRepoHeads(ctx context.Context, logger log.Logger, autofix bool)
}

// otherwise, let's try fixing HEAD
err := git.NewCommand(ctx, "symbolic-ref").AddDashesAndList("HEAD", repo.DefaultBranch).Run(runOpts)
err := git.NewCommand(ctx, "symbolic-ref").AddDashesAndList("HEAD", git.BranchPrefix+repo.DefaultBranch).Run(&git.RunOpts{Dir: repo.RepoPath()})
if err != nil {
logger.Warn("Failed to fix HEAD for %s/%s: %v", repo.OwnerName, repo.Name, err)
return nil
Expand All @@ -65,7 +63,7 @@ func synchronizeRepoHeads(ctx context.Context, logger log.Logger, autofix bool)
logger.Info("Out of %d repos, HEADs for %d are now fixed and HEADS for %d are still broken", numRepos, numReposUpdated, numDefaultBranchesBroken+numHeadsBroken-numReposUpdated)
} else {
if numHeadsBroken == 0 && numDefaultBranchesBroken == 0 {
logger.Info("All %d repos have their HEADs in the correct state")
logger.Info("All %d repos have their HEADs in the correct state", numRepos)
} else {
if numHeadsBroken == 0 && numDefaultBranchesBroken != 0 {
logger.Critical("Default branches are broken for %d/%d repos", numDefaultBranchesBroken, numRepos)
Expand Down
26 changes: 20 additions & 6 deletions modules/git/command.go
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Original file line number Diff line number Diff line change
Expand Up @@ -202,8 +202,11 @@ func (c *Command) Run(opts *RunOpts) error {
if opts == nil {
opts = &RunOpts{}
}
if opts.Timeout <= 0 {
opts.Timeout = defaultCommandExecutionTimeout

// We must not change the provided options
timeout := opts.Timeout
if timeout <= 0 {
timeout = defaultCommandExecutionTimeout
}

if len(opts.Dir) == 0 {
Expand Down Expand Up @@ -238,7 +241,7 @@ func (c *Command) Run(opts *RunOpts) error {
if opts.UseContextTimeout {
ctx, cancel, finished = process.GetManager().AddContext(c.parentContext, desc)
} else {
ctx, cancel, finished = process.GetManager().AddContextTimeout(c.parentContext, opts.Timeout, desc)
ctx, cancel, finished = process.GetManager().AddContextTimeout(c.parentContext, timeout, desc)
}
defer finished()

Expand Down Expand Up @@ -339,9 +342,20 @@ func (c *Command) RunStdBytes(opts *RunOpts) (stdout, stderr []byte, runErr RunS
}
stdoutBuf := &bytes.Buffer{}
stderrBuf := &bytes.Buffer{}
opts.Stdout = stdoutBuf
opts.Stderr = stderrBuf
err := c.Run(opts)

// We must not change the provided options as it could break future calls - therefore make a copy.
newOpts := &RunOpts{
Env: opts.Env,
Timeout: opts.Timeout,
UseContextTimeout: opts.UseContextTimeout,
Dir: opts.Dir,
Stdout: stdoutBuf,
Stderr: stderrBuf,
Stdin: opts.Stdin,
PipelineFunc: opts.PipelineFunc,
}

err := c.Run(newOpts)
stderr = stderrBuf.Bytes()
if err != nil {
return nil, stderr, &runStdError{err: err, stderr: bytesToString(stderr)}
Expand Down