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https://github.com/octoleo/restic.git
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Handle null subtree IDs
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parent
72fcd00859
commit
86c8328f62
@ -276,7 +276,7 @@ func loadSnapshotTreeIDs(repo *repository.Repository) (backend.IDs, []error) {
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return trees.IDs, errs.errs
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}
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// TreeError is returned when loading a tree from the repository failed.
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// TreeError collects several errors that occurred while processing a tree.
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type TreeError struct {
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ID backend.ID
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Errors []error
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@ -335,7 +335,7 @@ func loadTreeWorker(repo *repository.Repository,
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}
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// checkTreeWorker checks the trees received and sends out errors to errChan.
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func (c *Checker) checkTreeWorker(in <-chan treeJob, out chan<- TreeError, done <-chan struct{}, wg *sync.WaitGroup) {
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func (c *Checker) checkTreeWorker(in <-chan treeJob, out chan<- error, done <-chan struct{}, wg *sync.WaitGroup) {
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defer func() {
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debug.Log("checker.checkTreeWorker", "exiting")
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wg.Done()
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@ -351,10 +351,12 @@ func (c *Checker) checkTreeWorker(in <-chan treeJob, out chan<- TreeError, done
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for {
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select {
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case <-done:
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debug.Log("checker.checkTreeWorker", "done channel closed, exiting")
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return
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case job, ok := <-inCh:
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if !ok {
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debug.Log("checker.checkTreeWorker", "input channel closed, exiting")
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return
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}
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@ -372,9 +374,15 @@ func (c *Checker) checkTreeWorker(in <-chan treeJob, out chan<- TreeError, done
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continue
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}
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debug.Log("checker.checkTreeWorker", "load tree %v", job.ID.Str())
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debug.Log("checker.checkTreeWorker", "check tree %v (tree %v, err %v)", job.ID.Str(), job.Tree, job.error)
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var errs []error
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if job.error != nil {
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errs = append(errs, job.error)
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} else {
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errs = c.checkTree(job.ID, job.Tree)
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}
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errs := c.checkTree(job.ID, job.Tree)
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if len(errs) > 0 {
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debug.Log("checker.checkTreeWorker", "checked tree %v: %v errors", job.ID.Str(), len(errs))
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treeError = TreeError{ID: job.ID, Errors: errs}
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@ -438,7 +446,7 @@ func filterTrees(backlog backend.IDs, loaderChan chan<- backend.ID, in <-chan tr
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outstandingLoadTreeJobs--
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debug.Log("checker.filterTrees", "input job tree %v, subtrees %v", j.ID.Str(), j.Tree.Subtrees())
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debug.Log("checker.filterTrees", "input job tree %v", j.ID.Str())
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var err error
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@ -448,10 +456,13 @@ func filterTrees(backlog backend.IDs, loaderChan chan<- backend.ID, in <-chan tr
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debug.Log("checker.filterTrees", "received job with nil tree pointer: %v (ID %v)", j.error, j.ID.Str())
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err = errors.New("tree is nil and error is nil")
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} else {
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debug.Log("checker.filterTrees", "subtrees for tree %v: %v", j.ID.Str(), j.Tree.Subtrees())
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for _, id := range j.Tree.Subtrees() {
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if id.IsNull() {
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// We do not need to raise this error here, it is
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// checked when the tree is checked. Just make sure
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// that we do not add any null IDs to the backlog.
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debug.Log("checker.filterTrees", "tree %v has nil subtree", j.ID.Str())
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err = fmt.Errorf("tree %v has subtree with null ID", j.ID)
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continue
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}
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backlog = append(backlog, id)
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