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The cat command doesn't need to load the entire file into memory

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It can print out the chunk as soon as a chunk is retrieved.  This avoids
reconstructing the file in the memory which can be an issue with large files.
This commit is contained in:
Gilbert Chen
2019-05-03 11:33:16 -04:00
parent 57a408a577
commit 458687d543
1 changed files with 3 additions and 4 deletions
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7
src/duplicacy_snapshotmanager.go
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@@ -1285,15 +1285,14 @@ func (manager *SnapshotManager) PrintFile(snapshotID string, revision int, path
} }
file := manager.FindFile(snapshot, path, false) file := manager.FindFile(snapshot, path, false)
var content []byte if !manager.RetrieveFile(snapshot, file, func(chunk []byte) {
if !manager.RetrieveFile(snapshot, file, func(chunk []byte) { content = append(content, chunk...) }) { fmt.Printf("%s", chunk)
}) {
LOG_ERROR("SNAPSHOT_RETRIEVE", "File %s is corrupted in snapshot %s at revision %d", LOG_ERROR("SNAPSHOT_RETRIEVE", "File %s is corrupted in snapshot %s at revision %d",
path, snapshot.ID, snapshot.Revision) path, snapshot.ID, snapshot.Revision)
return false return false
} }
fmt.Printf("%s", string(content))
return true return true
} }