Files
dvc/dvc/command/get.py
T
Casper da Costa-Luis 5d2ac9fca2 completion: update dependency (#4148)
* completion: use new simpler `shtab` API

* completion: use FILE|DIR
2020-07-02 00:15:39 +03:00

88 lines
2.3 KiB
Python

import argparse
import logging
from dvc.exceptions import DvcException
from . import completion
from .base import CmdBaseNoRepo, append_doc_link
logger = logging.getLogger(__name__)
class CmdGet(CmdBaseNoRepo):
def _show_url(self):
from dvc.api import get_url
try:
url = get_url(
self.args.path, repo=self.args.url, rev=self.args.rev
)
logger.info(url)
except DvcException:
logger.exception("failed to show URL")
return 1
return 0
def run(self):
if self.args.show_url:
return self._show_url()
return self._get_file_from_repo()
def _get_file_from_repo(self):
from dvc.repo import Repo
try:
Repo.get(
self.args.url,
path=self.args.path,
out=self.args.out,
rev=self.args.rev,
)
return 0
except DvcException:
logger.exception(
"failed to get '{}' from '{}'".format(
self.args.path, self.args.url
)
)
return 1
def add_parser(subparsers, parent_parser):
GET_HELP = "Download file or directory tracked by DVC or by Git."
get_parser = subparsers.add_parser(
"get",
parents=[parent_parser],
description=append_doc_link(GET_HELP, "get"),
help=GET_HELP,
formatter_class=argparse.RawDescriptionHelpFormatter,
)
get_parser.add_argument(
"url", help="Location of DVC or Git repository to download from"
)
get_parser.add_argument(
"path", help="Path to a file or directory within the repository",
).complete = completion.FILE
get_parser.add_argument(
"-o",
"--out",
nargs="?",
help="Destination path to download files to",
metavar="<path>",
).complete = completion.DIR
get_parser.add_argument(
"--rev",
nargs="?",
help="Git revision (e.g. SHA, branch, tag)",
metavar="<commit>",
)
get_parser.add_argument(
"--show-url",
action="store_true",
help="Print the storage location (URL) the target data would be "
"downloaded from, and exit.",
)
get_parser.set_defaults(func=CmdGet)