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Add []byte to repo.LoadAndDecrypt and utils.LoadAll

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This commit changes the signatures for repository.LoadAndDecrypt and
utils.LoadAll to allow passing in a []byte as the buffer to use. This
buffer is enlarged as needed, and returned back to the caller for
further use.

In later commits, this allows reducing allocations by reusing a buffer
for multiple calls, e.g. in a worker function.
This commit is contained in:
Alexander Neumann
2019-03-24 21:59:14 +01:00
parent e046428c94
commit d51e9d1b98
10 changed files with 112 additions and 71 deletions
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6
cmd/restic/cmd_cat.go
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@@ -74,7 +74,7 @@ func runCat(gopts GlobalOptions, args []string) error {
fmt.Println(string(buf))
return nil
case "index":
buf, err := repo.LoadAndDecrypt(gopts.ctx, restic.IndexFile, id)
buf, err := repo.LoadAndDecrypt(gopts.ctx, nil, restic.IndexFile, id)
if err != nil {
return err
}
@@ -99,7 +99,7 @@ func runCat(gopts GlobalOptions, args []string) error {
return nil
case "key":
h := restic.Handle{Type: restic.KeyFile, Name: id.String()}
buf, err := backend.LoadAll(gopts.ctx, repo.Backend(), h)
buf, err := backend.LoadAll(gopts.ctx, nil, repo.Backend(), h)
if err != nil {
return err
}
@@ -150,7 +150,7 @@ func runCat(gopts GlobalOptions, args []string) error {
switch tpe {
case "pack":
h := restic.Handle{Type: restic.DataFile, Name: id.String()}
buf, err := backend.LoadAll(gopts.ctx, repo.Backend(), h)
buf, err := backend.LoadAll(gopts.ctx, nil, repo.Backend(), h)
if err != nil {
return err
}