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https://github.com/Stone-Red-Code/dvc.git
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Casper da Costa-Luis
2bb7257a06
* test: clean flake8 config root clutter * test: pre-commit: add isort Compatible with black (see https://github.com/timothycrosley/isort/issues/694) * lint: reorder imports * lint: more complex imports * lint: fix deepsource * config: isort: add first party dvc * tests: restyled: add isort * temp commit to revert before merge * Revert "temp commit to revert before merge" This reverts commit 11db0fd8e95fe891597cbb9bf804480909b19e24.
115 lines
4.2 KiB
Python
115 lines
4.2 KiB
Python
"""Manages dvc remotes that user can use with push/pull/status commands."""
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import logging
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from dvc.config import NoRemoteError
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from dvc.remote import Remote
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logger = logging.getLogger(__name__)
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class DataCloud(object):
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"""Class that manages dvc remotes.
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Args:
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repo (dvc.repo.Repo): repo instance that belongs to the repo that
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we are working on.
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Raises:
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config.ConfigError: thrown when config has invalid format.
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"""
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def __init__(self, repo):
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self.repo = repo
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def get_remote(self, name=None, command="<command>"):
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if not name:
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name = self.repo.config["core"].get("remote")
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if name:
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return self._init_remote(name)
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if bool(self.repo.config["remote"]):
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error_msg = (
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"no remote specified. Setup default remote with\n"
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" dvc remote default <remote name>\n"
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"or use:\n"
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" dvc {} -r <remote name>".format(command)
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)
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else:
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error_msg = (
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"no remote specified. Create a default remote with\n"
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" dvc remote add -d <remote name> <remote url>"
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)
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raise NoRemoteError(error_msg)
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def _init_remote(self, name):
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return Remote(self.repo, name=name)
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def push(self, cache, jobs=None, remote=None, show_checksums=False):
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"""Push data items in a cloud-agnostic way.
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Args:
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cache (NamedCache): named checksums to push to the cloud.
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jobs (int): number of jobs that can be running simultaneously.
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remote (dvc.remote.base.BaseRemote): optional remote to push to.
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By default remote from core.remote config option is used.
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show_checksums (bool): show checksums instead of file names in
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information messages.
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"""
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return self.repo.cache.local.push(
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cache,
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jobs=jobs,
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remote=self.get_remote(remote, "push"),
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show_checksums=show_checksums,
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)
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def pull(self, cache, jobs=None, remote=None, show_checksums=False):
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"""Pull data items in a cloud-agnostic way.
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Args:
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cache (NamedCache): named checksums to pull from the cloud.
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jobs (int): number of jobs that can be running simultaneously.
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remote (dvc.remote.base.BaseRemote): optional remote to pull from.
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By default remote from core.remote config option is used.
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show_checksums (bool): show checksums instead of file names in
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information messages.
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"""
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remote = self.get_remote(remote, "pull")
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downloaded_items_num = self.repo.cache.local.pull(
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cache, jobs=jobs, remote=remote, show_checksums=show_checksums
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)
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if not remote.verify:
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self._save_pulled_checksums(cache)
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return downloaded_items_num
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def _save_pulled_checksums(self, cache):
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for checksum in cache.scheme_keys("local"):
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cache_file = self.repo.cache.local.checksum_to_path_info(checksum)
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if self.repo.cache.local.exists(cache_file):
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# We can safely save here, as existing corrupted files will
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# be removed upon status, while files corrupted during
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# download will not be moved from tmp_file
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# (see `RemoteBASE.download()`)
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self.repo.state.save(cache_file, checksum)
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def status(self, cache, jobs=None, remote=None, show_checksums=False):
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"""Check status of data items in a cloud-agnostic way.
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Args:
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cache (NamedCache): named checksums to check status for.
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jobs (int): number of jobs that can be running simultaneously.
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remote (dvc.remote.base.BaseRemote): optional remote to compare
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cache to. By default remote from core.remote config option
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is used.
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show_checksums (bool): show checksums instead of file names in
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information messages.
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"""
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remote = self.get_remote(remote, "status")
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return self.repo.cache.local.status(
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cache, jobs=jobs, remote=remote, show_checksums=show_checksums
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)
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