* dvc: get rid of DirInfo
DirInfo was created before we had proper objects, as a way to have a
structure that represents a staged directory. Right now we have a
dedicated Tree object that is specifically meant for that.
As a result, HashInfo no longer needs to have dir_info and we no longer
need `get_hash/get_dir_hash` helpers.
* objects: move Tree into tree.py
Currently we are converting dir_info to/from lists all the time.
The reason is that dir_info is stored as list of dicts in *.dir files,
but that makes it hard to work with. In addition to that, we will likely
be changing .dir file format in the near future #829, so we need to
abstract away dir_info into something that we won't care how it will be
stored on disk.
Related #3256
Related #4847
* 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
* remote: move upload()/download() into tree
* remote: move path_info/path_cls into tree
* remote.azure: finish moving methods into tree
* remote.gs: finish moving methods into tree
* remote.hdfs: finish moving methods to tree
* remote.http: finish moving methods into tree
* remote.oss: finish moving methods into tree
* remote.s3: finish moving methods into tree
* remote.ssh: finish moving methods into tree
* remote.gdrive: finish moving methods into tree
* tests: update remote unit tests
* tests: update func tests
* remote: use walk_files() for all remotes
* list_cache_paths() now uses tree.walk_files() for all remotes except
local/ssh
* fix DS warnings
* bugfixes
* drop python 3.5 support
* dvc: remove fspath() use inside os.path calls
* dvc: replace dvc.compat.fspath with os.fspath
* tests: replace dvc.compat.fspath with os.fspath
* utils: relpath() should use fspath/str
* utils: os.readlink doesn't support path-like obj on Windows until 3.8
* remote: locally index list of checksums available on cloud remotes
* fix review issues
- use pytest fixtures
- use sha256 digest
- s/fd/fobj/
- check more specific IO errors
* remote: use .dir checksums to validate index
* command: add --drop-index option for push/pull/status
* tests: --drop-index unit tests
* remote: make index threadsafe
* remote: force re-index after gc
* only save/dump index once per command
* remote: add helper index functions update_all/replace_all
* remote: store index as sqlite3 database
* fix deepsource warnings
* rename --drop-index to --clear-index
* rename index.invalidate to index.clear
* functional tests for remote.index
* fix index not being updated on status -c
* remote: add index.intersection()
* remote: use index when making assumptions about remote .dir contents
* add missing func tests
* do not index standalone files
* cleanup index test fixture
* fix deepsource warnings
* update autocompletion scripts/cli help message for --clear-index
* tests: remove unused mocker
* push: only index successfully pushed dirs
- do not index files on partial push/upload
* remote: revert behavior to trust .dir files on remote
- skip unnecessary index check for dir contents if .dir file exists on
the remote
* fix missing RemoteIndexNoop functions
* separate index validation from status dir exists query
* bugfix: include indexed checksums for all cache_exists cases
* review fix: cleanup debug messages
* tests: fix DS warning
* remove --clear-index
* remove unused index functions
Ruslan Kuprieiev
Peter Rowlands (변기호)
nik123