Add dir support to kando with kopia location

[PrasadG193]

Signed-off-by: Prasad Ghangal prasad.ghangal@gmail.com

Change Overview

This approach has the following limitations:

1. The backup performed with stdin as a source, can be restored ONLY as stdout target
2. The backup performed with file/dir path as a source, can be restored ONLY as file/dir path as target

Please see the test plan for the details.

Pull request type

Please check the type of change your PR introduces:

• 🚧 Work in Progress
• 🌈 Refactoring (no functional changes, no api changes)
• 🐹 Trivial/Minor
• 🐛 Bugfix
• 🌻 Feature
• 🗺️ Documentation
• 🤖 Test

Test Plan

• 💪 Manual
• ⚡ Unit test
• 💚 E2E

Test cases:

1. Backup file with stdin as source, restore file with stdout as target - PASS
2. Backup file with stdin as source, restore file with filepath as target - FAIL
3. Backup file with filepath as source, restore file with filepath as target - PASS
4. Backup file with filepath as source, restore file with stdout as target - FAIL
5. Backup dir with filepath as source, restore file with stdout as target and --path arg with same value as source filepath - PASS
6. Backup dir with dirpath as source, restore dir with dirpath as target - PASS

[pavannd1]

I think test case 2 and 4 should work if the target path is same as the backup file path. Please try it out.

[PrasadG193]

I think test case 2 and 4 should work if the target path is same as the backup file path. Please try it out.

@pavannd1 it works on master where we create Reader/Writer from file and pass it to stream handling. But since we have added separate handling for files and streaming data, they are no longer compatible.

[PrasadG193]

@pavannd1 do we want to have these flags configurable?

[pavannd1]

Should be okay for now. We can improve later if the requirement comes up.

[pavannd1]

LGTM