Disambiguate the destination of FsShell copies
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Key: HADOOP-8176
URL: https://issues.apache.org/jira/browse/HADOOP-8176
Project: Hadoop Common
Issue Type: Bug
Components: fs
Affects Versions: 0.24.0, 0.23.2
Reporter: Daryn Sharp
Assignee: Daryn Sharp
The copy commands currently do not provide a way to disambiguate the expected
destination of a copy. Ex.
{{fs -put myfile path/mydir}}
If "mydir" is an existing directory, then the copy produces
{{path/mydir/file}}. If "mydir" does not exist at all, the copy produces
{{path/mydir}}. The file has unexpectedly been renamed to what was expected to
be a directory! It's standard unix shell behavior, but it lacks a special
trait.
Unix allows a user to disambiguate their intent by allowing {{path/mydir/}} or
{{path/mydir/.}} to mean "mydir" is *always* be treated as a directory. If the
copy succeeds, it will always be called {{path/mydir/myfile}}.
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