ls/ls-url: introduce --size

I really need it only for studio right now, but this is really nice to have in a daily life
as well.

E.g.

```
$ dvc ls-url . --size
108    Metadata-and-Results.dvc
97     AudioMP3.dvc
97     AudioWAV.dvc
12181  README.md
54     .gitignore
168    .gitattributes
99     VideoFlash.dvc
312    LICENSE.txt
139    .dvcignore
96     AudioMP3
96     Asset
192    .dvc
64     Metadata-and-Results
64     AudioWAV
192    Scripts
64     VideoFlash
384    .git
96     .vscode
```

```
$ dvc list . --size
139    .dvcignore
168    .gitattributes
54     .gitignore
96     .vscode
96     Asset
96     AudioMP3
97     AudioMP3.dvc
64     AudioWAV
97     AudioWAV.dvc
312    LICENSE.txt
64     Metadata-and-Results
108    Metadata-and-Results.dvc
12181  README.md
192    Scripts
64     VideoFlash
99     VideoFlash.dvc
```

dvc/commands/ls/__init__.py

@@ -1,6 +1,8 @@
 import argparse
 import logging
 
+from tqdm import tqdm
+
 from dvc.cli import completion
 from dvc.cli.command import CmdBaseNoRepo
 from dvc.cli.utils import DictAction, append_doc_link
@@ -11,7 +13,16 @@ from dvc.ui import ui
 logger = logging.getLogger(__name__)
 
 
-def _prettify(entries, with_color=False):
+def _format_entry(entry, fmt):
+    size = entry.get("size")
+    if size is None:
+        size = ""
+    else:
+        size = tqdm.format_sizeof(size, divisor=1024)
+    return size, fmt(entry)
+
+
+def show_entries(entries, with_color=False, with_size=False):
     if with_color:
         ls_colors = LsColors()
         fmt = ls_colors.format
@@ -20,7 +31,12 @@ def _prettify(entries, with_color=False):
         def fmt(entry):
             return entry["path"]
 
-    return [fmt(entry) for entry in entries]
+    if with_size:
+        ui.table([_format_entry(entry, fmt) for entry in entries])
+        return
+
+    # NOTE: this is faster than ui.table for very large number of entries
+    ui.write("\n".join(fmt(entry) for entry in entries))
 
 
 class CmdList(CmdBaseNoRepo):
@@ -41,8 +57,7 @@ class CmdList(CmdBaseNoRepo):
             if self.args.json:
                 ui.write_json(entries)
             elif entries:
-                entries = _prettify(entries, with_color=True)
-                ui.write("\n".join(entries))
+                show_entries(entries, with_color=True, with_size=self.args.size)
             return 0
         except DvcException:
             logger.exception("failed to list '%s'", self.args.url)
@@ -106,6 +121,11 @@ def add_parser(subparsers, parent_parser):
             "specified by '--remote') in the target repository."
         ),
     )
+    list_parser.add_argument(
+        "--size",
+        action="store_true",
+        help="Show sizes.",
+    )
     list_parser.add_argument(
         "path",
         nargs="?",

dvc/commands/ls_url.py

@@ -3,9 +3,8 @@ import logging
 
 from dvc.cli.command import CmdBaseNoRepo
 from dvc.cli.utils import append_doc_link
-from dvc.ui import ui
 
-from .ls import _prettify
+from .ls import show_entries
 
 logger = logging.getLogger(__name__)
 
@@ -16,8 +15,7 @@ class CmdListUrl(CmdBaseNoRepo):
 
         entries = Repo.ls_url(self.args.url, recursive=self.args.recursive)
         if entries:
-            entries = _prettify(entries, with_color=True)
-            ui.write("\n".join(entries))
+            show_entries(entries, with_color=True, with_size=self.args.size)
         return 0
 
 
@@ -40,4 +38,9 @@ def add_parser(subparsers, parent_parser):
         action="store_true",
         help="Recursively list files.",
     )
+    lsurl_parser.add_argument(
+        "--size",
+        action="store_true",
+        help="Show sizes.",
+    )
     lsurl_parser.set_defaults(func=CmdListUrl)

dvc/repo/ls.py

@@ -109,6 +109,7 @@ def _ls(
             "isout": dvc_info.get("isout", False),
             "isdir": info["type"] == "directory",
             "isexec": info.get("isexec", False),
+            "size": info.get("size"),
         }
 
     return ret

dvc/repo/ls_url.py

@@ -20,6 +20,7 @@ def ls_url(url, *, config=None, recursive=False):
             ls_info = {
                 "path": fs.path.relpath(info["name"], fs_path),
                 "isdir": info["type"] == "directory",
+                "size": info.get("size"),
             }
             ret.append(ls_info)
 

tests/func/test_ls.py

@@ -460,7 +460,7 @@ def test_ls_shows_pipeline_tracked_outs(tmp_dir, dvc, scm, run_copy):
     match_files(files, ((("bar",), True),))
 
 
-def test_ls_granular(erepo_dir):
+def test_ls_granular(erepo_dir, M):
     with erepo_dir.chdir():
         erepo_dir.dvc_gen(
             {
@@ -475,15 +475,21 @@ def test_ls_granular(erepo_dir):
 
     entries = Repo.ls(os.fspath(erepo_dir), os.path.join("dir", "subdir"))
     assert entries == [
-        {"isout": True, "isdir": False, "isexec": False, "path": "bar"},
-        {"isout": True, "isdir": False, "isexec": False, "path": "foo"},
+        {"isout": True, "isdir": False, "isexec": False, "path": "bar", "size": 3},
+        {"isout": True, "isdir": False, "isexec": False, "path": "foo", "size": 3},
     ]
 
     entries = Repo.ls(os.fspath(erepo_dir), "dir")
     assert entries == [
-        {"isout": True, "isdir": False, "isexec": False, "path": "1"},
-        {"isout": True, "isdir": False, "isexec": False, "path": "2"},
-        {"isout": True, "isdir": True, "isexec": False, "path": "subdir"},
+        {"isout": True, "isdir": False, "isexec": False, "path": "1", "size": 1},
+        {"isout": True, "isdir": False, "isexec": False, "path": "2", "size": 1},
+        {
+            "isout": True,
+            "isdir": True,
+            "isexec": False,
+            "path": "subdir",
+            "size": M.instance_of(int),
+        },
     ]
 
 
@@ -508,14 +514,14 @@ def test_ls_target(erepo_dir, use_scm):
         return Repo.ls(os.fspath(erepo_dir), path)
 
     assert _ls(os.path.join("dir", "1")) == [
-        {"isout": isout, "isdir": False, "isexec": False, "path": "1"}
+        {"isout": isout, "isdir": False, "isexec": False, "path": "1", "size": 1}
     ]
     assert _ls(os.path.join("dir", "subdir", "foo")) == [
-        {"isout": isout, "isdir": False, "isexec": False, "path": "foo"}
+        {"isout": isout, "isdir": False, "isexec": False, "path": "foo", "size": 3}
     ]
     assert _ls(os.path.join("dir", "subdir")) == [
-        {"isdir": False, "isexec": 0, "isout": isout, "path": "bar"},
-        {"isdir": False, "isexec": 0, "isout": isout, "path": "foo"},
+        {"isdir": False, "isexec": 0, "isout": isout, "path": "bar", "size": 3},
+        {"isdir": False, "isexec": 0, "isout": isout, "path": "foo", "size": 3},
     ]
 
 
@@ -559,7 +565,7 @@ def test_subrepo(dvc_top_level, erepo):
     assert _list_files(subrepo, "dvc_dir") == {"lorem"}
 
 
-def test_broken_symlink(tmp_dir, dvc):
+def test_broken_symlink(tmp_dir, dvc, M):
     from dvc.fs import system
 
     tmp_dir.gen("file", "content")
@@ -575,17 +581,19 @@ def test_broken_symlink(tmp_dir, dvc):
             "isdir": False,
             "isexec": False,
             "path": ".dvcignore",
+            "size": M.instance_of(int),
         },
         {
             "isout": False,
             "isdir": False,
             "isexec": False,
             "path": "link",
+            "size": 0,
         },
     ]
 
 
-def test_ls_broken_dir(tmp_dir, dvc):
+def test_ls_broken_dir(tmp_dir, dvc, M):
     from dvc_data.index import DataIndexDirError
 
     tmp_dir.dvc_gen(
@@ -606,13 +614,43 @@ def test_ls_broken_dir(tmp_dir, dvc):
 
     entries = Repo.ls(os.fspath(tmp_dir))
     assert entries == [
-        {"isdir": False, "isexec": False, "isout": False, "path": ".dvcignore"},
-        {"isdir": True, "isexec": False, "isout": True, "path": "broken"},
-        {"isdir": False, "isexec": False, "isout": False, "path": "broken.dvc"},
-        {"isdir": True, "isexec": False, "isout": True, "path": "dir"},
-        {"isdir": False, "isexec": False, "isout": False, "path": "dir.dvc"},
-        {"isdir": False, "isexec": False, "isout": True, "path": "foo"},
-        {"isdir": False, "isexec": False, "isout": False, "path": "foo.dvc"},
+        {
+            "isdir": False,
+            "isexec": False,
+            "isout": False,
+            "path": ".dvcignore",
+            "size": M.instance_of(int),
+        },
+        {"isdir": True, "isexec": False, "isout": True, "path": "broken", "size": 3},
+        {
+            "isdir": False,
+            "isexec": False,
+            "isout": False,
+            "path": "broken.dvc",
+            "size": M.instance_of(int),
+        },
+        {
+            "isdir": True,
+            "isexec": False,
+            "isout": True,
+            "path": "dir",
+            "size": M.instance_of(int),
+        },
+        {
+            "isdir": False,
+            "isexec": False,
+            "isout": False,
+            "path": "dir.dvc",
+            "size": M.instance_of(int),
+        },
+        {"isdir": False, "isexec": False, "isout": True, "path": "foo", "size": 3},
+        {
+            "isdir": False,
+            "isexec": False,
+            "isout": False,
+            "path": "foo.dvc",
+            "size": M.instance_of(int),
+        },
     ]
 
     with pytest.raises(DataIndexDirError):