* dvc: get rid of is_walking_tree
No longer needed. Some applications of `isinstance()` will be refactored
in the future, as trees will just provide the needed functionality.
* dvc: move GitTree to dvc/tree/
* dvc: rename *RemoteTree to *Tree
* remote: move constants into trees
* remote: replace Remote() Cache() helper functions
* output: update for remote changes
* cache/data_cloud: update for remote changes
* dependency: update for remote changes
* stage: update for remote changes
* remote: move remaining non-index methods into tree
* tests: update remote unit tests
* remote: LocalCache needs to lock remote index, not cache index
* fix bugs from moved PARAM_CHECKSUM/PARAM_RELPATH
* tests: repo tree open needs state context
* remote: make Remote.gc a class method
* operates on obj.tree, so that GC can be done with both remote and
cache instances
* bug fixes
* tests: update test_data_cloud
* bug fixes
* tests: update func tests
* remote: move get_file_checksum() into tree
* makes RemoteTree and RepoTree consistent with regard to checksum
calculation
* remote: save() now takes explicit tree parameter
* when tree is remote.tree, save will be a move + link operation
(same as default existing behavior)
* when saving path from a different tree, save will be a copy operation
* tests: update for moved remote/tree functions
* remote: move get_checksum into tree
* remote: separate cloud remote and cache classes
* tests: update unit tests for remote/cache separation
* remote: cloud cache should extend cloud remote
* remote: move LocalRemote.get
* tests: update func tests
* dependency: update for moved get_checksum
* remote: fix state lookup bug
* BaseRemote: start moving tree functions into BaseRemoteTree
* remote: add LocalRemoteTree
* remote: add cloud remote trees
* remote: move remove(), makedirs() into tree
* remote: move move(), copy(), symlink(), hardlink(), reflink() into tree
* fix attributes for moved remote methods
* tests: update unit tests for moved remote tree methods
* tests: mv unit/remote/test_remote_dir.py unit/remote/test_remote_tree.py
* fix attributes for moved remote tree functions
* tests: update func tests for moved remote tree methods
* test fixes
* fix DS warnings
Windows (or rather NTFS) doesn't allow deleting read-only files, which made us
try to chmod +w first. But that is not necessery on Linux and Mac, and
has led to unnecessary cache file mode changes, which was causing issues
in shared cache scenario when a user that doesn't own a file was trying
to automatically protect it.
Fixes#3618
* dvc: dedup used cache
This is a preparation step to make garbage collector work with more
commits. It has a value of its own:
- less exists calls to show cloud status or prepare push/pull
- same names are not repeated in status and pbar texts
* dvc: delay checksum names concatenation
Ruslan Kuprieiev
Peter Rowlands (변기호)
Casper da Costa-Luis
nik123
GeorgeSabu-MEC
Alexander Schepanovski
Ruslan Kuprieiev
Mr. Outis