prompt: 
  We are currently solving the following issue within our repository. Here is the issue text:
  --- BEGIN ISSUE ---
  alias `list` as `ls`?
  I have been reaching for `dvc ls` out of habit instead of `dvc list`. Should we introduce an alias for `dvc list`?
  
  --- END ISSUE ---
  
  Below are some code segments, each from a relevant file. One or more of these files may contain bugs.
  
  --- BEGIN FILE ---
  ```
  ### dvc/command/ls/__init__.py
  import argparse
  import logging
  
  from dvc.command import completion
  from dvc.command.base import CmdBaseNoRepo, append_doc_link
  from dvc.command.ls.ls_colors import LsColors
  from dvc.exceptions import DvcException
  from dvc.ui import ui
  
  logger = logging.getLogger(__name__)
  
  
  def _prettify(entries, with_color=False):
      if with_color:
          ls_colors = LsColors()
          fmt = ls_colors.format
      else:
  
          def fmt(entry):
              return entry["path"]
  
      return [fmt(entry) for entry in entries]
  
  
  class CmdList(CmdBaseNoRepo):
      def run(self):
          from dvc.repo import Repo
  
          try:
              entries = Repo.ls(
                  self.args.url,
                  self.args.path,
                  rev=self.args.rev,
                  recursive=self.args.recursive,
                  dvc_only=self.args.dvc_only,
              )
              if self.args.show_json:
                  import json
  
                  ui.write(json.dumps(entries))
              elif entries:
                  entries = _prettify(entries, with_color=True)
                  ui.write("\n".join(entries))
              return 0
          except DvcException:
              logger.exception(f"failed to list '{self.args.url}'")
              return 1
  
  
  def add_parser(subparsers, parent_parser):
      LIST_HELP = (
          "List repository contents, including files"
          " and directories tracked by DVC and by Git."
      )
      list_parser = subparsers.add_parser(
          "list",
          parents=[parent_parser],
          description=append_doc_link(LIST_HELP, "list"),
          help=LIST_HELP,
          formatter_class=argparse.RawTextHelpFormatter,
      )
      list_parser.add_argument("url", help="Location of DVC repository to list")
      list_parser.add_argument(
          "-R",
          "--recursive",
          action="store_true",
          help="Recursively list files.",
      )
      list_parser.add_argument(
          "--dvc-only", action="store_true", help="Show only DVC outputs."
      )
      list_parser.add_argument(
          "--show-json", action="store_true", help="Show output in JSON format."
      )
      list_parser.add_argument(
          "--rev",
          nargs="?",
          help="Git revision (e.g. SHA, branch, tag)",
          metavar="<commit>",
      )
      list_parser.add_argument(
          "path",
          nargs="?",
          help="Path to directory within the repository to list outputs for",
      ).complete = completion.DIR
      list_parser.set_defaults(func=CmdList)
  
  ```
  --- END FILE ---
  
  Please first localize the bug based on the issue statement, and then generate *SEARCH/REPLACE* edits to fix the issue.
  
  Every *SEARCH/REPLACE* edit must use this format:
  1. The file path
  2. The start of search block: <<<<<<< SEARCH
  3. A contiguous chunk of lines to search for in the existing source code
  4. The dividing line: =======
  5. The lines to replace into the source code
  6. The end of the replace block: >>>>>>> REPLACE
  
  Here is an example:
  
  ```python
  ### mathweb/flask/app.py
  <<<<<<< SEARCH
  from flask import Flask
  =======
  import math
  from flask import Flask
  >>>>>>> REPLACE
  ```
  
  Please note that the *SEARCH/REPLACE* edit REQUIRES PROPER INDENTATION. If you would like to add the line '        print(x)', you must fully write that out, with all those spaces before the code!
  Wrap the *SEARCH/REPLACE* edit in blocks ```python...```.
  
instance: {"FAIL_TO_PASS": ["tests/unit/command/ls/test_ls.py::test_list_alias"], "PASS_TO_PASS": ["tests/unit/command/ls/test_ls.py::test_list_git_ssh_rev", "tests/unit/command/ls/test_ls.py::test_list_recursive", "tests/unit/command/ls/test_ls.py::test_list", "tests/unit/command/ls/test_ls.py::test_show_colors", "tests/unit/command/ls/test_ls.py::test_show_json", "tests/unit/command/ls/test_ls.py::test_list_outputs_only", "tests/unit/command/ls/test_ls.py::test_list_targets"], "base_commit": "0bf1802d4bc045d5dc2a2c3258c3d6b0d9425761", "created_at": "2021-09-24T14:04:04Z", "hints_text": "", "instance_id": "iterative__dvc-6683", "patch": "diff --git a/dvc/command/ls/__init__.py b/dvc/command/ls/__init__.py\n--- a/dvc/command/ls/__init__.py\n+++ b/dvc/command/ls/__init__.py\n@@ -54,6 +54,7 @@ def add_parser(subparsers, parent_parser):\n     )\n     list_parser = subparsers.add_parser(\n         \"list\",\n+        aliases=[\"ls\"],\n         parents=[parent_parser],\n         description=append_doc_link(LIST_HELP, \"list\"),\n         help=LIST_HELP,\n", "problem_statement": "alias `list` as `ls`?\nI have been reaching for `dvc ls` out of habit instead of `dvc list`. Should we introduce an alias for `dvc list`?\n", "repo": "iterative/dvc", "test_patch": "diff --git a/tests/unit/command/ls/test_ls.py b/tests/unit/command/ls/test_ls.py\n--- a/tests/unit/command/ls/test_ls.py\n+++ b/tests/unit/command/ls/test_ls.py\n@@ -109,3 +109,8 @@ def test_show_colors(mocker, capsys, monkeypatch):\n         \"\\x1b[01;34msrc\\x1b[0m\",\n         \"\\x1b[01;32mrun.sh\\x1b[0m\",\n     ]\n+\n+\n+def test_list_alias():\n+    cli_args = parse_args([\"ls\", \"local_dir\"])\n+    assert cli_args.func == CmdList\n", "version": "2.7"}
parsed_commit_content: {"file_diffs":[{"old_file_content":"import argparse\nimport logging\n\nfrom dvc.command import completion\nfrom dvc.command.base import CmdBaseNoRepo, append_doc_link\nfrom dvc.command.ls.ls_colors import LsColors\nfrom dvc.exceptions import DvcException\nfrom dvc.ui import ui\n\nlogger = logging.getLogger(__name__)\n\n\ndef _prettify(entries, with_color=False):\n    if with_color:\n        ls_colors = LsColors()\n        fmt = ls_colors.format\n    else:\n\n        def fmt(entry):\n            return entry[\"path\"]\n\n    return [fmt(entry) for entry in entries]\n\n\nclass CmdList(CmdBaseNoRepo):\n    def run(self):\n        from dvc.repo import Repo\n\n        try:\n            entries = Repo.ls(\n                self.args.url,\n                self.args.path,\n                rev=self.args.rev,\n                recursive=self.args.recursive,\n                dvc_only=self.args.dvc_only,\n            )\n            if self.args.show_json:\n                import json\n\n                ui.write(json.dumps(entries))\n            elif entries:\n                entries = _prettify(entries, with_color=True)\n                ui.write(\"\\n\".join(entries))\n            return 0\n        except DvcException:\n            logger.exception(f\"failed to list '{self.args.url}'\")\n            return 1\n\n\ndef add_parser(subparsers, parent_parser):\n    LIST_HELP = (\n        \"List repository contents, including files\"\n        \" and directories tracked by DVC and by Git.\"\n    )\n    list_parser = subparsers.add_parser(\n        \"list\",\n        parents=[parent_parser],\n        description=append_doc_link(LIST_HELP, \"list\"),\n        help=LIST_HELP,\n        formatter_class=argparse.RawTextHelpFormatter,\n    )\n    list_parser.add_argument(\"url\", help=\"Location of DVC repository to list\")\n    list_parser.add_argument(\n        \"-R\",\n        \"--recursive\",\n        action=\"store_true\",\n        help=\"Recursively list files.\",\n    )\n    list_parser.add_argument(\n        \"--dvc-only\", action=\"store_true\", help=\"Show only DVC outputs.\"\n    )\n    list_parser.add_argument(\n        \"--show-json\", action=\"store_true\", help=\"Show output in JSON format.\"\n    )\n    list_parser.add_argument(\n        \"--rev\",\n        nargs=\"?\",\n        help=\"Git revision (e.g. SHA, branch, tag)\",\n        metavar=\"<commit>\",\n    )\n    list_parser.add_argument(\n        \"path\",\n        nargs=\"?\",\n        help=\"Path to directory within the repository to list outputs for\",\n    ).complete = completion.DIR\n    list_parser.set_defaults(func=CmdList)\n","new_file_content":"import argparse\nimport logging\n\nfrom dvc.command import completion\nfrom dvc.command.base import CmdBaseNoRepo, append_doc_link\nfrom dvc.command.ls.ls_colors import LsColors\nfrom dvc.exceptions import DvcException\nfrom dvc.ui import ui\n\nlogger = logging.getLogger(__name__)\n\n\ndef _prettify(entries, with_color=False):\n    if with_color:\n        ls_colors = LsColors()\n        fmt = ls_colors.format\n    else:\n\n        def fmt(entry):\n            return entry[\"path\"]\n\n    return [fmt(entry) for entry in entries]\n\n\nclass CmdList(CmdBaseNoRepo):\n    def run(self):\n        from dvc.repo import Repo\n\n        try:\n            entries = Repo.ls(\n                self.args.url,\n                self.args.path,\n                rev=self.args.rev,\n                recursive=self.args.recursive,\n                dvc_only=self.args.dvc_only,\n            )\n            if self.args.show_json:\n                import json\n\n                ui.write(json.dumps(entries))\n            elif entries:\n                entries = _prettify(entries, with_color=True)\n                ui.write(\"\\n\".join(entries))\n            return 0\n        except DvcException:\n            logger.exception(f\"failed to list '{self.args.url}'\")\n            return 1\n\n\ndef add_parser(subparsers, parent_parser):\n    LIST_HELP = (\n        \"List repository contents, including files\"\n        \" and directories tracked by DVC and by Git.\"\n    )\n    list_parser = subparsers.add_parser(\n        \"list\",\n        aliases=[\"ls\"],\n        parents=[parent_parser],\n        description=append_doc_link(LIST_HELP, \"list\"),\n        help=LIST_HELP,\n        formatter_class=argparse.RawTextHelpFormatter,\n    )\n    list_parser.add_argument(\"url\", help=\"Location of DVC repository to list\")\n    list_parser.add_argument(\n        \"-R\",\n        \"--recursive\",\n        action=\"store_true\",\n        help=\"Recursively list files.\",\n    )\n    list_parser.add_argument(\n        \"--dvc-only\", action=\"store_true\", help=\"Show only DVC outputs.\"\n    )\n    list_parser.add_argument(\n        \"--show-json\", action=\"store_true\", help=\"Show output in JSON format.\"\n    )\n    list_parser.add_argument(\n        \"--rev\",\n        nargs=\"?\",\n        help=\"Git revision (e.g. SHA, branch, tag)\",\n        metavar=\"<commit>\",\n    )\n    list_parser.add_argument(\n        \"path\",\n        nargs=\"?\",\n        help=\"Path to directory within the repository to list outputs for\",\n    ).complete = completion.DIR\n    list_parser.set_defaults(func=CmdList)\n","header":{"file":{"path":"dvc/command/ls/__init__.py"},"misc_line":null},"index_line":null,"is_binary_file":false,"binary_line":null,"minus_file":{"path":"a/dvc/command/ls/__init__.py"},"plus_file":{"path":"b/dvc/command/ls/__init__.py"},"hunks":[{"descriptor":{"old_range":{"start":54,"length":6},"new_range":{"start":54,"length":7},"section":"def add_parser(subparsers, parent_parser):"},"line_group":{"all_lines":[{"content":"    )","type":"context"},{"content":"    list_parser = subparsers.add_parser(","type":"context"},{"content":"        \"list\",","type":"context"},{"content":"        aliases=[\"ls\"],","type":"added"},{"content":"        parents=[parent_parser],","type":"context"},{"content":"        description=append_doc_link(LIST_HELP, \"list\"),","type":"context"},{"content":"        help=LIST_HELP,","type":"context"},{"content":"","type":"context"}]},"modified_entities":[],"added_entities":[],"deleted_entities":[]}]}],"old_commit_hash":"0bf1802d4bc045d5dc2a2c3258c3d6b0d9425761","new_commit_hash":"924d83712f2b0de1c15f2c5702387ec3f5263238","commit_message":"Issue 6651: Added alias ls for dvc list","commit_date":"2021-09-24T19:27:25+05:30","metadata":{}}
problem_statement: alias `list` as `ls`?
  I have been reaching for `dvc ls` out of habit instead of `dvc list`. Should we introduce an alias for `dvc list`?
  
patch: diff --git a/dvc/command/ls/__init__.py b/dvc/command/ls/__init__.py
  --- a/dvc/command/ls/__init__.py
  +++ b/dvc/command/ls/__init__.py
  @@ -54,6 +54,7 @@ def add_parser(subparsers, parent_parser):
       )
       list_parser = subparsers.add_parser(
           "list",
  +        aliases=["ls"],
           parents=[parent_parser],
           description=append_doc_link(LIST_HELP, "list"),
           help=LIST_HELP,
   
  
file_context: {"dvc/command/ls/__init__.py": "import argparse\nimport logging\n\nfrom dvc.command import completion\nfrom dvc.command.base import CmdBaseNoRepo, append_doc_link\nfrom dvc.command.ls.ls_colors import LsColors\nfrom dvc.exceptions import DvcException\nfrom dvc.ui import ui\n\nlogger = logging.getLogger(__name__)\n\n\ndef _prettify(entries, with_color=False):\n    if with_color:\n        ls_colors = LsColors()\n        fmt = ls_colors.format\n    else:\n\n        def fmt(entry):\n            return entry[\"path\"]\n\n    return [fmt(entry) for entry in entries]\n\n\nclass CmdList(CmdBaseNoRepo):\n    def run(self):\n        from dvc.repo import Repo\n\n        try:\n            entries = Repo.ls(\n                self.args.url,\n                self.args.path,\n                rev=self.args.rev,\n                recursive=self.args.recursive,\n                dvc_only=self.args.dvc_only,\n            )\n            if self.args.show_json:\n                import json\n\n                ui.write(json.dumps(entries))\n            elif entries:\n                entries = _prettify(entries, with_color=True)\n                ui.write(\"\\n\".join(entries))\n            return 0\n        except DvcException:\n            logger.exception(f\"failed to list '{self.args.url}'\")\n            return 1\n\n\ndef add_parser(subparsers, parent_parser):\n    LIST_HELP = (\n        \"List repository contents, including files\"\n        \" and directories tracked by DVC and by Git.\"\n    )\n    list_parser = subparsers.add_parser(\n        \"list\",\n        parents=[parent_parser],\n        description=append_doc_link(LIST_HELP, \"list\"),\n        help=LIST_HELP,\n        formatter_class=argparse.RawTextHelpFormatter,\n    )\n    list_parser.add_argument(\"url\", help=\"Location of DVC repository to list\")\n    list_parser.add_argument(\n        \"-R\",\n        \"--recursive\",\n        action=\"store_true\",\n        help=\"Recursively list files.\",\n    )\n    list_parser.add_argument(\n        \"--dvc-only\", action=\"store_true\", help=\"Show only DVC outputs.\"\n    )\n    list_parser.add_argument(\n        \"--show-json\", action=\"store_true\", help=\"Show output in JSON format.\"\n    )\n    list_parser.add_argument(\n        \"--rev\",\n        nargs=\"?\",\n        help=\"Git revision (e.g. SHA, branch, tag)\",\n        metavar=\"<commit>\",\n    )\n    list_parser.add_argument(\n        \"path\",\n        nargs=\"?\",\n        help=\"Path to directory within the repository to list outputs for\",\n    ).complete = completion.DIR\n    list_parser.set_defaults(func=CmdList)\n"}
filelevel_patches: {"dvc/command/ls/__init__.py": "@@ -54,6 +54,7 @@ def add_parser(subparsers, parent_parser):\n     )\n     list_parser = subparsers.add_parser(\n         \"list\",\n+        aliases=[\"ls\"],\n         parents=[parent_parser],\n         description=append_doc_link(LIST_HELP, \"list\"),\n         help=LIST_HELP,"}
messages.content: 
  We are currently solving the following issue within our repository. Here is the issue text:
  --- BEGIN ISSUE ---
  alias `list` as `ls`?
  I have been reaching for `dvc ls` out of habit instead of `dvc list`. Should we introduce an alias for `dvc list`?
  
  --- END ISSUE ---
  
  Below are some code segments, each from a relevant file. One or more of these files may contain bugs.
  
  --- BEGIN FILE ---
  ```
  ### dvc/command/ls/__init__.py
  import argparse
  import logging
  
  from dvc.command import completion
  from dvc.command.base import CmdBaseNoRepo, append_doc_link
  from dvc.command.ls.ls_colors import LsColors
  from dvc.exceptions import DvcException
  from dvc.ui import ui
  
  logger = logging.getLogger(__name__)
  
  
  def _prettify(entries, with_color=False):
      if with_color:
          ls_colors = LsColors()
          fmt = ls_colors.format
      else:
  
          def fmt(entry):
              return entry["path"]
  
      return [fmt(entry) for entry in entries]
  
  
  class CmdList(CmdBaseNoRepo):
      def run(self):
          from dvc.repo import Repo
  
          try:
              entries = Repo.ls(
                  self.args.url,
                  self.args.path,
                  rev=self.args.rev,
                  recursive=self.args.recursive,
                  dvc_only=self.args.dvc_only,
              )
              if self.args.show_json:
                  import json
  
                  ui.write(json.dumps(entries))
              elif entries:
                  entries = _prettify(entries, with_color=True)
                  ui.write("\n".join(entries))
              return 0
          except DvcException:
              logger.exception(f"failed to list '{self.args.url}'")
              return 1
  
  
  def add_parser(subparsers, parent_parser):
      LIST_HELP = (
          "List repository contents, including files"
          " and directories tracked by DVC and by Git."
      )
      list_parser = subparsers.add_parser(
          "list",
          parents=[parent_parser],
          description=append_doc_link(LIST_HELP, "list"),
          help=LIST_HELP,
          formatter_class=argparse.RawTextHelpFormatter,
      )
      list_parser.add_argument("url", help="Location of DVC repository to list")
      list_parser.add_argument(
          "-R",
          "--recursive",
          action="store_true",
          help="Recursively list files.",
      )
      list_parser.add_argument(
          "--dvc-only", action="store_true", help="Show only DVC outputs."
      )
      list_parser.add_argument(
          "--show-json", action="store_true", help="Show output in JSON format."
      )
      list_parser.add_argument(
          "--rev",
          nargs="?",
          help="Git revision (e.g. SHA, branch, tag)",
          metavar="<commit>",
      )
      list_parser.add_argument(
          "path",
          nargs="?",
          help="Path to directory within the repository to list outputs for",
      ).complete = completion.DIR
      list_parser.set_defaults(func=CmdList)
  
  ```
  --- END FILE ---
  
  Please first localize the bug based on the issue statement, and then generate *SEARCH/REPLACE* edits to fix the issue.
  
  Every *SEARCH/REPLACE* edit must use this format:
  1. The file path
  2. The start of search block: <<<<<<< SEARCH
  3. A contiguous chunk of lines to search for in the existing source code
  4. The dividing line: =======
  5. The lines to replace into the source code
  6. The end of the replace block: >>>>>>> REPLACE
  
  Here is an example:
  
  ```python
  ### mathweb/flask/app.py
  <<<<<<< SEARCH
  from flask import Flask
  =======
  import math
  from flask import Flask
  >>>>>>> REPLACE
  ```
  
  Please note that the *SEARCH/REPLACE* edit REQUIRES PROPER INDENTATION. If you would like to add the line '        print(x)', you must fully write that out, with all those spaces before the code!
  Wrap the *SEARCH/REPLACE* edit in blocks ```python...```.
  
messages.role: user
verification_info: {"file_context": {"dvc/command/ls/__init__.py": "import argparse\nimport logging\n\nfrom dvc.command import completion\nfrom dvc.command.base import CmdBaseNoRepo, append_doc_link\nfrom dvc.command.ls.ls_colors import LsColors\nfrom dvc.exceptions import DvcException\nfrom dvc.ui import ui\n\nlogger = logging.getLogger(__name__)\n\n\ndef _prettify(entries, with_color=False):\n    if with_color:\n        ls_colors = LsColors()\n        fmt = ls_colors.format\n    else:\n\n        def fmt(entry):\n            return entry[\"path\"]\n\n    return [fmt(entry) for entry in entries]\n\n\nclass CmdList(CmdBaseNoRepo):\n    def run(self):\n        from dvc.repo import Repo\n\n        try:\n            entries = Repo.ls(\n                self.args.url,\n                self.args.path,\n                rev=self.args.rev,\n                recursive=self.args.recursive,\n                dvc_only=self.args.dvc_only,\n            )\n            if self.args.show_json:\n                import json\n\n                ui.write(json.dumps(entries))\n            elif entries:\n                entries = _prettify(entries, with_color=True)\n                ui.write(\"\\n\".join(entries))\n            return 0\n        except DvcException:\n            logger.exception(f\"failed to list '{self.args.url}'\")\n            return 1\n\n\ndef add_parser(subparsers, parent_parser):\n    LIST_HELP = (\n        \"List repository contents, including files\"\n        \" and directories tracked by DVC and by Git.\"\n    )\n    list_parser = subparsers.add_parser(\n        \"list\",\n        parents=[parent_parser],\n        description=append_doc_link(LIST_HELP, \"list\"),\n        help=LIST_HELP,\n        formatter_class=argparse.RawTextHelpFormatter,\n    )\n    list_parser.add_argument(\"url\", help=\"Location of DVC repository to list\")\n    list_parser.add_argument(\n        \"-R\",\n        \"--recursive\",\n        action=\"store_true\",\n        help=\"Recursively list files.\",\n    )\n    list_parser.add_argument(\n        \"--dvc-only\", action=\"store_true\", help=\"Show only DVC outputs.\"\n    )\n    list_parser.add_argument(\n        \"--show-json\", action=\"store_true\", help=\"Show output in JSON format.\"\n    )\n    list_parser.add_argument(\n        \"--rev\",\n        nargs=\"?\",\n        help=\"Git revision (e.g. SHA, branch, tag)\",\n        metavar=\"<commit>\",\n    )\n    list_parser.add_argument(\n        \"path\",\n        nargs=\"?\",\n        help=\"Path to directory within the repository to list outputs for\",\n    ).complete = completion.DIR\n    list_parser.set_defaults(func=CmdList)\n"}, "filelevel_patches": {"dvc/command/ls/__init__.py": "@@ -54,6 +54,7 @@ def add_parser(subparsers, parent_parser):\n     )\n     list_parser = subparsers.add_parser(\n         \"list\",\n+        aliases=[\"ls\"],\n         parents=[parent_parser],\n         description=append_doc_link(LIST_HELP, \"list\"),\n         help=LIST_HELP,"}}