ROLLOUT 2 · Azure/WALinuxAgent
azure__walinuxagent-547
Solved
306 stotal time
12tool calls
14model calls
5,370tokens generated
135,837prompt tokens read
No error recorded
⚠ The request log has 13 model calls but the trace has 15 agent calls, so tokens are listed separately instead of beside each turn.
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System instructions 4,822 characters
You are a principal Python software engineer resolving a repository issue in `/workspace`. Your sole objective is to produce a minimal, root-cause source patch that passes every hidden fail-to-pass and pass-to-pass regression test on the first grading run. ## Critical Environment & Grader Rules 1. **Air-Gapped Sandbox & Available CLI Tools**: No network access. Never run `pip`, `uv`, `conda`, or `git fetch`. Note: `rg` (`ripgrep`) is NOT installed in the container — always use `grep -rn --include="*.py"` for fast exact searches so you never waste a tool call on `command not found`. 2. **Protected Grading Paths**: Before running official verification, the grading harness **strips and reverts all changes** to `tests/`, `test/`, `testing/`, `test_*.py`, `*_test.py`, `conftest.py`, `pyproject.toml`, `setup.cfg`, `pytest.ini`, and `tox.ini`. Every part of your fix MUST reside in non-test production source files. 3. **Untracked File Trap (`git add -N .`)**: `submit_patch` stages ALL untracked files inside `/workspace`! Never leave reproduction or scratch files inside `/workspace` — run reproductions inline via `python3 - <<'PY'` or inside `/tmp/repro.py` in a single `run_command`. 4. **Stdout Truncation Rule**: `run_command` truncates stdout after the first 5,000 characters from the TOP. Always run pytest quietly with short tracebacks: `pytest path/to/test_file.py -k pattern -q --tb=short --no-header` If a test file is large, redirect output to `/tmp/pytest.log` and inspect `tail -n 80 /tmp/pytest.log` so failure tracebacks at the bottom are never cut off. 5. **Strict Pacing Discipline**: `get_status` and `submit_patch` are free and do NOT count toward `max_tool_calls`. Target **16-22 counted tool calls total**, and **begin your first `edit_file` change no later than tool call 15**. Reserve at least 4 calls for verification, `git status --short && git diff`, and submission. ## Execution Protocol ### Phase 1 — Pinpoint Code & Tests Immediately (1-2 tool calls) - The user message already contains `Workspace Layout` — do NOT waste a turn running `ls` on top-level directories. - Run a single compound `run_command` with `grep -rn --include="*.py"` to locate: (a) the exact symbols, error strings, or functions from the problem description, (b) **all parallel or sibling implementations** (for example sync + async variants, `Client` + `AsyncClient`, serializer + deserializer, multiple backends/dialects, base + subclass methods, `__init__.py` / `__all__` exports), and (c) the closest existing unit test files under `tests/`. ### Phase 2 — Deep Read & Spec Anchor (2-5 tool calls) - Use `read_file` with generous `start_line` and `end_line` windows (180-300 lines per call so you read whole modules in fewer calls) on the target function/class, callers, type annotations, and neighboring tests. - Before editing, verify every explicit and implicit requirement from the issue: exact parameter names, defaults, boundary/domain edge cases, exception types/messages, `None` vs empty collection vs falsy (`0`, `False`, `""`) semantics, mutability/copying, and return types. ### Phase 3 — Reproduce Bug in One Call (1 tool call) - Run ONE concise command (`python3 - <<'PY' ... PY` or targeted `pytest ... -q --tb=short --no-header`) via `run_command` to observe the exact pre-fix failure. Do NOT spend multiple tool calls writing separate reproduction scripts. ### Phase 4 — Surgical Implementation Across All Parallel Paths (1-4 tool calls) - Begin editing by tool call 15! Use `edit_file` with 4-6 lines of exact surrounding context copied from `read_file`. - Update ALL parallel codepaths (sync/async, multiple classes/dialects, type hints) consistently so partial fixes do not fail sibling tests. - **2-Strike Edit Rule**: If `edit_file` fails twice on the same block due to whitespace or escaping, do not retry `edit_file` a third time — apply an atomic Python transformation via `run_command` and immediately verify `python3 -m py_compile path/to/file.py`. ### Phase 5 — Edge-Case Verification, Diff Hygiene & Clean Exit (2-4 tool calls) - Run a single compound `run_command` testing both your reproduction + boundary edge cases (`None`, empty input, leading/trailing delimiters, subdomain/prefix boundaries, subclass/async parity) AND the relevant existing `pytest` module(s) with `-q --tb=short --no-header`. - Run `git status --short && git diff` via `run_command`. Confirm: - ZERO untracked (`??`) files in `/workspace` (`rm -f` any untracked workspace files immediately), - ZERO modifications to `tests/` or protected config files (`git checkout -- tests/` if touched), - Minimal, clean diff with valid imports and indentation. - Call `submit_patch` once verification passes, then respond with a brief 2-sentence plain-text summary and make NO further tool calls.
Task prompt 6,001 characters
You are evaluating a software engineering task for repository Azure/WALinuxAgent.
Problem Statement:
[2.2.0+] Cannot run waagent command inside any folder under /var/lib/waagent
Description of problem:
Cannot run any waagent command (such as: waagent -version, waagent -deprovision...) inside the any folder under /var/lib/waagent (such as: /var/lib/waagent/events)
It seems that if create a folder inside /var/lib/waagent, go into this folder, any waagent command cannot be run.
Version-Release number of selected component (if applicable):
WALinuxAgent-2.2.0+
RHEL Version:
RHEL-7.3
How reproducible:
100%
Steps to Reproduce:
1. Prepare a RHEL-7.3 VM with WALA-2.2.0+ installed.
2. Access to the /var/lib/waagent/events folder.
~]# cd /var/lib/waagent/events
4. Run waagent command
events]# waagent -version
Actual Result:
Raise exception. Cannot run this command.
events]# waagent -version
Traceback (most recent call last):
File "/sbin/waagent", line 31, in <module>
import azurelinuxagent.agent as agent
File "/usr/lib/python2.7/site-packages/azurelinuxagent/agent.py", line 29, in <module>
import azurelinuxagent.common.event as event
File "/usr/lib/python2.7/site-packages/azurelinuxagent/common/event.py", line 30, in <module>
from azurelinuxagent.common.protocol.restapi import TelemetryEventParam, \
File "/usr/lib/python2.7/site-packages/azurelinuxagent/common/protocol/__init__.py", line 18, in <module>
from azurelinuxagent.common.protocol.util import get_protocol_util, \
File "/usr/lib/python2.7/site-packages/azurelinuxagent/common/protocol/util.py", line 30, in <module>
from azurelinuxagent.common.osutil import get_osutil
File "/usr/lib/python2.7/site-packages/azurelinuxagent/common/osutil/__init__.py", line 18, in <module>
from azurelinuxagent.common.osutil.factory import get_osutil
File "/usr/lib/python2.7/site-packages/azurelinuxagent/common/osutil/factory.py", line 20, in <module>
from azurelinuxagent.common.version import DISTRO_NAME, DISTRO_VERSION, \
File "/usr/lib/python2.7/site-packages/azurelinuxagent/common/version.py", line 87, in <module>
CURRENT_AGENT, CURRENT_VERSION = set_current_agent()
File "/usr/lib/python2.7/site-packages/azurelinuxagent/common/version.py", line 85, in set_current_agent
version = AGENT_NAME_PATTERN.match(agent).group(1)
AttributeError: 'NoneType' object has no attribute 'group'
Expect Result:
Can run waagent command.
## Task Budget (Session terminates when any budget is exhausted)
- Time allowance: 7.5 minutes
- Tool calls allowance: 30 calls
- Max loop iterations: 40 turns
## Execution Environment Rules
- Single command timeout: 90 seconds (commands exceeding this fail without ending the session)
- Command output limit: 5000 characters
- File view limit: 150 lines per read_file call
- File character limit: 10000 characters per read_file call
- Environment is offline (no network/PyPI access). All repository and test dependencies are ALREADY pre-installed. Do NOT attempt to run pip install or download packages.
## Instructions:
0. All source code is under `/workspace`. Do NOT search outside `/workspace` (e.g. `/usr/`, `/wheels/`, system site-packages). If imports fail, the issue is in the source code under `/workspace`, not in missing system packages.
1. Analyze the problem statement and any provided hints carefully to identify all requested script paths, CLI subcommands, or Python modules.
2. Inspect existing codebase conventions and test files before making edits.
3. Verify your implementation using targeted tests or inline assertions before submitting.
4. Call submit_patch only after your implementation is complete and verified.
5. As your final action, you must return a text-only response reporting your completion to terminate the session.
## Workspace Layout
The repository is located at `/workspace`. Here is the directory tree (up to 3 levels):
```
./Changelog
./LICENSE.txt
./MAINTENANCE.md
./MANIFEST
./MANIFEST.in
./NOTICE
./README.md
./__main__.py
./azurelinuxagent
./azurelinuxagent/__init__.py
./azurelinuxagent/agent.py
./azurelinuxagent/common
./azurelinuxagent/common/__init__.py
./azurelinuxagent/common/conf.py
./azurelinuxagent/common/dhcp.py
./azurelinuxagent/common/event.py
./azurelinuxagent/common/exception.py
./azurelinuxagent/common/future.py
./azurelinuxagent/common/logger.py
./azurelinuxagent/common/osutil
./azurelinuxagent/common/protocol
./azurelinuxagent/common/rdma.py
./azurelinuxagent/common/utils
./azurelinuxagent/common/version.py
./azurelinuxagent/daemon
./azurelinuxagent/daemon/__init__.py
./azurelinuxagent/daemon/main.py
./azurelinuxagent/daemon/resourcedisk
./azurelinuxagent/daemon/scvmm.py
./azurelinuxagent/distro
./azurelinuxagent/distro/__init__.py
./azurelinuxagent/distro/suse
./azurelinuxagent/ga
./azurelinuxagent/ga/__init__.py
./azurelinuxagent/ga/env.py
./azurelinuxagent/ga/exthandlers.py
./azurelinuxagent/ga/monitor.py
./azurelinuxagent/ga/update.py
./azurelinuxagent/pa
./azurelinuxagent/pa/__init__.py
./azurelinuxagent/pa/deprovision
./azurelinuxagent/pa/provision
./azurelinuxagent/pa/rdma
./bin
./bin/waagent
./bin/waagent2.0
./config
./config/66-azure-storage.rules
./config/99-azure-product-uuid.rules
./config/alpine
./config/alpine/waagent.conf
./config/bigip
./config/bigip/waagent.conf
./config/clearlinux
./config/clearlinux/waagent.conf
./config/coreos
./config/coreos/waagent.conf
./config/freebsd
./config/freebsd/waagent.conf
./config/suse
./config/suse/waagent.conf
./config/ubuntu
./config/ubuntu/waagent.conf
./config/waagent.conf
./config/waagent.logrotate
./init
./init/clearlinux
./init/clearlinux/waagent.service
./init/coreos
./init/coreos/cloud-config.yml
./init/freebsd
./init/freebsd/waagent
./init/suse
./init/suse/waagent
./init/ubuntu
./init/ubuntu/walinuxagent
./init/ubuntu/walinuxagent.conf
./init/ubuntu/walinuxagent.service
./init/waagent
./init/waagent.service
./makepkg.py
./setup.py
./tests
```
Turn 1at 18 s287 tokens out3,912 prompt tokens
The issue describes a crash when running `waagent` commands (like `waagent -version`) from within any directory under `/var/lib/waagent`.
The traceback points to `azurelinuxagent/common/version.py` in the `set_current_agent` function:
```python
File "/usr/lib/python2.7/site-packages/azurelinuxagent/common/version.py", line 87, in <module>
CURRENT_AGENT, CURRENT_VERSION = set_current_agent()
File "/usr/lib/python2.7/site-packages/azurelinuxagent/common/version.py", line 85, in set_current_agent
version = AGENT_NAME_PATTERN.match(agent).group(1)
AttributeError: 'NoneType' object has no attribute 'group'
```
This suggests `AGENT_NAME_PATTERN.match(agent)` is returning `None`, and the code is trying to call `.group(1)` on it.
Let's examine `azurelinuxagent/common/version.py` around line 85.
TOOL CALL · read_file
{
"end_line": 100,
"filepath": "azurelinuxagent/common/version.py",
"start_line": 70
}Result of read_file 1,330 characters
{
"status": "ok",
"filepath": "azurelinuxagent/common/version.py",
"content": "\n # The platform.py lib has issue with detecting oracle linux distribution.\n # Merge the following patch provided by oracle as a temporary fix.\n if os.path.exists(\"/etc/oracle-release\"):\n osinfo[2] = \"oracle\"\n osinfo[3] = \"Oracle Linux\"\n\n # The platform.py lib has issue with detecting BIG-IP linux distribution.\n # Merge the following patch provided by F5.\n if os.path.exists(\"/shared/vadc\"):\n osinfo = get_f5_platform()\n\n # Remove trailing whitespace and quote in distro name\n osinfo[0] = osinfo[0].strip('\"').strip(' ').lower()\n return osinfo\n\n\nAGENT_NAME = \"WALinuxAgent\"\nAGENT_LONG_NAME = \"Azure Linux Agent\"\nAGENT_VERSION = '2.2.2'\nAGENT_LONG_VERSION = \"{0}-{1}\".format(AGENT_NAME, AGENT_VERSION)\nAGENT_DESCRIPTION = \"\"\"\\\nThe Azure Linux Agent supports the provisioning and running of Linux\nVMs in the Azure cloud. This package should be installed on Linux disk\nimages that are built to run in the Azure environment.\n\"\"\"\n\nAGENT_DIR_GLOB = \"{0}-*\".format(AGENT_NAME)\nAGENT_PKG_GLOB = \"{0}-*.zip\".format(AGENT_NAME)\n\nAGENT_PATTERN = \"{0}-(.*)\".format(AGENT_NAME)",
"start_line": 70,
"end_line": 100,
"total_lines": 172,
"is_truncated": false
}Turn 2at 27 s156 tokens out4,627 prompt tokens
Wait, the line numbers in the traceback are slightly different from the provided `read_file` result, or I'm looking at the wrong part. Traceback said: Line 87: `CURRENT_AGENT, CURRENT_VERSION = set_current_agent()` Line 85: `version = AGENT_NAME_PATTERN.match(agent).group(1)` Let me read more of `azurelinuxagent/common/version.py`, especially the `set_current_agent` function. I'll read from line 101 to the end.
TOOL CALL · read_file
{
"filepath": "azurelinuxagent/common/version.py",
"start_line": 101
}Result of read_file 2,455 characters
{
"status": "ok",
"filepath": "azurelinuxagent/common/version.py",
"content": "AGENT_NAME_PATTERN = re.compile(AGENT_PATTERN)\nAGENT_DIR_PATTERN = re.compile(\".*/{0}\".format(AGENT_PATTERN))\n\nEXT_HANDLER_PATTERN = b\".*/WALinuxAgent-(\\w.\\w.\\w[.\\w]*)-.*-run-exthandlers\"\nEXT_HANDLER_REGEX = re.compile(EXT_HANDLER_PATTERN)\n\n# Set the CURRENT_AGENT and CURRENT_VERSION to match the agent directory name\n# - This ensures the agent will \"see itself\" using the same name and version\n# as the code that downloads agents.\ndef set_current_agent():\n path = os.getcwd()\n lib_dir = conf.get_lib_dir()\n if lib_dir[-1] != os.path.sep:\n lib_dir += os.path.sep\n if path[:len(lib_dir)] != lib_dir:\n agent = AGENT_LONG_VERSION\n version = AGENT_VERSION\n else:\n agent = path[len(lib_dir):].split(os.path.sep)[0]\n version = AGENT_NAME_PATTERN.match(agent).group(1)\n return agent, FlexibleVersion(version)\nCURRENT_AGENT, CURRENT_VERSION = set_current_agent()\n\ndef set_goal_state_agent():\n agent = None\n pids = [pid for pid in os.listdir('/proc') if pid.isdigit()]\n for pid in pids:\n try:\n pname = open(os.path.join('/proc', pid, 'cmdline'), 'rb').read()\n match = EXT_HANDLER_REGEX.match(pname)\n if match:\n agent = match.group(1)\n break\n except IOError:\n continue\n if agent is None:\n agent = CURRENT_VERSION\n return agent\nGOAL_STATE_AGENT_VERSION = set_goal_state_agent()\n\ndef is_current_agent_installed():\n return CURRENT_AGENT == AGENT_LONG_VERSION\n\n\n__distro__ = get_distro()\nDISTRO_NAME = __distro__[0]\nDISTRO_VERSION = __distro__[1]\nDISTRO_CODE_NAME = __distro__[2]\nDISTRO_FULL_NAME = __distro__[3]\n\nPY_VERSION = sys.version_info\nPY_VERSION_MAJOR = sys.version_info[0]\nPY_VERSION_MINOR = sys.version_info[1]\nPY_VERSION_MICRO = sys.version_info[2]\n\n\"\"\"\nAdd this workaround for detecting Snappy Ubuntu Core temporarily, until ubuntu\nfixed this bug: https://bugs.launchpad.net/snappy/+bug/1481086\n\"\"\"\n\n\ndef is_snappy():\n if os.path.exists(\"/etc/motd\"):\n motd = fileutil.read_file(\"/etc/motd\")\n if \"snappy\" in motd:\n return True\n return False\n\n\nif is_snappy():\n DISTRO_FULL_NAME = \"Snappy Ubuntu Core\"\n",
"start_line": 101,
"end_line": 172,
"total_lines": 172,
"is_truncated": false
}Turn 3at 72 s740 tokens out5,621 prompt tokens
Okay, I see the code in `set_current_agent()`:
```python
def set_current_agent():
path = os.getcwd()
lib_dir = conf.get_lib_dir()
if lib_dir[-1] != os.path.sep:
lib_dir += os.path.sep
if path[:len(lib_dir)] != lib_dir:
agent = AGENT_LONG_VERSION
version = AGENT_VERSION
else:
agent = path[len(lib_dir):].split(os.path.sep)[0]
version = AGENT_NAME_PATTERN.match(agent).group(1)
return agent, FlexibleVersion(version)
```
If `path` starts with `lib_dir`, it tries to extract the agent name from the path.
The problem statement says the crash happens when running from `/var/lib/waagent`.
Presumably `conf.get_lib_dir()` returns `/var/lib/waagent`.
If `path` is `/var/lib/waagent/events`, then `lib_dir` is `/var/lib/waagent/`.
`path[:len(lib_dir)]` is `/var/lib/waagent/`, which equals `lib_dir`.
Then it goes into the `else` block:
`agent = path[len(lib_dir):].split(os.path.sep)[0]`
`path[len(lib_dir):]` is `events`.
`agent` becomes `events`.
Then `AGENT_NAME_PATTERN.match("events")` is called.
`AGENT_NAME_PATTERN` is `re.compile(AGENT_PATTERN)`, where `AGENT_PATTERN` is `"WALinuxAgent-(.*)"`.
`AGENT_NAME_PATTERN.match("events")` returns `None`.
Calling `.group(1)` on `None` raises the `AttributeError`.
So the problem is that if the current working directory is inside `lib_dir`, but doesn't start with the agent's name format (`WALinuxAgent-X.X.X`), it crashes.
The common case seems to be that `lib_dir` is the base directory where agents might be stored, and the agent code expects that if you're running from there, you're running from inside a specific versioned agent directory (e.g., `/var/lib/waagent/WALinuxAgent-2.2.0/`).
However, if you're just in `/var/lib/waagent` or a subdirectory of it a that doesn't match the pattern, it fails.
Wait, if `path` is `/var/lib/waagent/events`, and `lib_dir` is `/var/lib/waagent/`, it's trying to treat `events` as the agent folder name.
If the agent is not running from a versioned directory under `lib_dir`, it should probably fall back to the default `AGENT_LONG_VERSION` and `AGENT_VERSION`.
Let's verify this behavior with a reproduction script.
I need to know what `conf.get_lib_dir()` returns. I should check `azurelinuxagent/common/conf.py`.
TOOL CALL · read_file
{
"filepath": "azurelinuxagent/common/conf.py"
}Result of read_file 4,760 characters
{
"status": "ok",
"filepath": "azurelinuxagent/common/conf.py",
"content": "# Microsoft Azure Linux Agent\n#\n# Copyright 2014 Microsoft Corporation\n#\n# Licensed under the Apache License, Version 2.0 (the \"License\");\n# you may not use this file except in compliance with the License.\n# You may obtain a copy of the License at\n#\n# http://www.apache.org/licenses/LICENSE-2.0\n#\n# Unless required by applicable law or agreed to in writing, software\n# distributed under the License is distributed on an \"AS IS\" BASIS,\n# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n# See the License for the specific language governing permissions and\n# limitations under the License.\n#\n# Requires Python 2.4+ and Openssl 1.0+\n#\n\n\"\"\"\nModule conf loads and parses configuration file\n\"\"\"\nimport os\nimport azurelinuxagent.common.utils.fileutil as fileutil\nfrom azurelinuxagent.common.exception import AgentConfigError\n\n\nclass ConfigurationProvider(object):\n \"\"\"\n Parse amd store key:values in /etc/waagent.conf.\n \"\"\"\n\n def __init__(self):\n self.values = dict()\n\n def load(self, content):\n if not content:\n raise AgentConfigError(\"Can't not parse empty configuration\")\n for line in content.split('\\n'):\n if not line.startswith(\"#\") and \"=\" in line:\n parts = line.split()[0].split('=')\n value = parts[1].strip(\"\\\" \")\n if value != \"None\":\n self.values[parts[0]] = value\n else:\n self.values[parts[0]] = None\n\n def get(self, key, default_val):\n val = self.values.get(key)\n return val if val is not None else default_val\n\n def get_switch(self, key, default_val):\n val = self.values.get(key)\n if val is not None and val.lower() == 'y':\n return True\n elif val is not None and val.lower() == 'n':\n return False\n return default_val\n\n def get_int(self, key, default_val):\n try:\n return int(self.values.get(key))\n except TypeError:\n return default_val\n except ValueError:\n return default_val\n\n\n__conf__ = ConfigurationProvider()\n\n\ndef load_conf_from_file(conf_file_path, conf=__conf__):\n \"\"\"\n Load conf file from: conf_file_path\n \"\"\"\n if os.path.isfile(conf_file_path) == False:\n raise AgentConfigError((\"Missing configuration in {0}\"\n \"\").format(conf_file_path))\n try:\n content = fileutil.read_file(conf_file_path)\n conf.load(content)\n except IOError as err:\n raise AgentConfigError((\"Failed to load conf file:{0}, {1}\"\n \"\").format(conf_file_path, err))\n\n\ndef enable_rdma(conf=__conf__):\n return conf.get_switch(\"OS.EnableRDMA\", False) or \\\n conf.get_switch(\"OS.UpdateRdmaDriver\", False) or \\\n conf.get_switch(\"OS.CheckRdmaDriver\", False)\n\n\ndef get_logs_verbose(conf=__conf__):\n return conf.get_switch(\"Logs.Verbose\", False)\n\n\ndef get_lib_dir(conf=__conf__):\n return conf.get(\"Lib.Dir\", \"/var/lib/waagent\")\n\n\ndef get_published_hostname(conf=__conf__):\n return os.path.join(get_lib_dir(conf), 'published_hostname')\n\n\ndef get_dvd_mount_point(conf=__conf__):\n return conf.get(\"DVD.MountPoint\", \"/mnt/cdrom/secure\")\n\n\ndef get_agent_pid_file_path(conf=__conf__):\n return conf.get(\"Pid.File\", \"/var/run/waagent.pid\")\n\n\ndef get_ext_log_dir(conf=__conf__):\n return conf.get(\"Extension.LogDir\", \"/var/log/azure\")\n\n\ndef get_openssl_cmd(conf=__conf__):\n return conf.get(\"OS.OpensslPath\", \"/usr/bin/openssl\")\n\n\ndef get_home_dir(conf=__conf__):\n return conf.get(\"OS.HomeDir\", \"/home\")\n\n\ndef get_passwd_file_path(conf=__conf__):\n return conf.get(\"OS.PasswordPath\", \"/etc/shadow\")\n\n\ndef get_sudoers_dir(conf=__conf__):\n return conf.get(\"OS.SudoersDir\", \"/etc/sudoers.d\")\n\n\ndef get_sshd_conf_file_path(conf=__conf__):\n return conf.get(\"OS.SshdConfigPath\", \"/etc/ssh/sshd_config\")\n\n\ndef get_root_device_scsi_timeout(conf=__conf__):\n return conf.get(\"OS.RootDeviceScsiTimeout\", None)\n\n\ndef get_ssh_host_keypair_type(conf=__conf__):\n return conf.get(\"Provisioning.SshHostKeyPairType\", \"rsa\")\n\n\ndef get_provision_enabled(conf=__conf__):\n return conf.get_switch(\"Provisioning.Enabled\", True)\n\n\ndef get_allow_reset_sys_user(conf=__conf__):\n return conf.get_switch(\"Provisioning.AllowResetSysUser\", False)",
"start_line": 1,
"end_line": 150,
"total_lines": 229,
"is_truncated": true
}Turn 4at 102 s460 tokens out7,897 prompt tokens
Yes, `get_lib_dir` returns `conf.get("Lib.Dir", "/var/lib/waagent")`.
Now I can write a reproduction script. I'll mock `os.getcwd` and `conf.get_lib_dir` if necessary, or just create the directory structure and run the code.
Since I'm in a sandbox, I can just create `/var/lib/waagent/events` (or a subdirectory of current dir and mock `conf.get_lib_dir` to return it).
Actually, the simplest way to reproduce is to run a Python script that imports `azurelinuxagent.common.version` while the current working directory is a subdirectory of whatever `get_lib_dir` returns.
Wait, `azurelinuxagent.common.version` is imported during the module initialization.
`CURRENT_AGENT, CURRENT_VERSION = set_current_agent()` is called at the module level.
Let's try to reproduce it.
TOOL CALL · run_command
{
"command": "python3 - <<'PY'\nimport os\nimport sys\n\n# Mocking azurelinuxagent.common.conf.get_lib_dir to return current directory\n# because we might not have permissions to /var/lib/waagent or we want to avoid polluting it.\n# Actually, we can just mock conf.get_lib_dir.\n\nimport unittest.mock as mock\n\n# We need to mock conf.get_lib_dir BEFORE importing azurelinuxagent.common.version\n# But azurelinuxagent.common.version imports azurelinuxagent.common.conf\n# So we can mock it.\n\nwith mock.patch('azurelinuxagent.common.conf.get_lib_dir', return_value='/tmp/waagent'):\n os.makedirs('/tmp/waagent/events', exist_ok=True)\n os.chdir('/tmp/waagent/events')\n try:\n import azurelinuxagent.common.version\n print(\"Successfully imported\")\n except Exception as e:\n import traceback\n traceback.print_exc()\nPY\n"
}Result of run_command 481 characters
{
"status": "ok",
"stdout": "",
"stderr": "Traceback (most recent call last):\n File \"<stdin>\", line 18, in <module>\n File \"/workspace/azurelinuxagent/common/version.py\", line 122, in <module>\n CURRENT_AGENT, CURRENT_VERSION = set_current_agent()\n File \"/workspace/azurelinuxagent/common/version.py\", line 120, in set_current_agent\n version = AGENT_NAME_PATTERN.match(agent).group(1)\nAttributeError: 'NoneType' object has no attribute 'group'\n",
"exit_code": 0
}Turn 5at 174 s1,571 tokens out8,528 prompt tokens
Perfect. The reproduction script confirms the bug.
Now let's fix it.
The logic in `set_current_agent` should be:
1. Get current directory `path`.
2. Get `lib_dir`.
3. Ensure `lib_dir` ends with separator.
4. If `path` doesn't start with `lib_dir`, use default `AGENT_LONG_VERSION` and `AGENT_VERSION`.
5. If `path` starts with `lib_dir`, try to extract the agent name from the first component after `lib_dir`.
6. If that extracted name matches `AGENT_NAME_PATTERN`, use it to get the version.
7. If it DOES NOT match `AGENT_NAME_PATTERN`, fall back to default `AGENT_LONG_VERSION` and `AGENT_VERSION`.
Current code:
```python
if path[:len(lib_dir)] != lib_dir:
agent = AGENT_LONG_VERSION
version = AGENT_VERSION
else:
agent = path[len(lib_dir):].split(os.path.sep)[0]
version = AGENT_NAME_PATTERN.match(agent).group(1)
```
Fixed code:
```python
if path[:len(lib_dir)] != lib_dir:
agent = AGENT_LONG_VERSION
version = AGENT_VERSION
else:
agent = path[len(lib_dir):].split(os.path.sep)[0]
match = AGENT_NAME_PATTERN.match(agent)
if match:
version = match.group(1)
else:
agent = AGENT_LONG_VERSION
version = AGENT_VERSION
```
Wait, if `match` is `None`, `agent` should also be reset to `AGENT_LONG_VERSION`.
Let's review `set_current_agent` again.
```python
def set_current_agent():
path = os.getcwd()
lib_dir = conf.get_lib_dir()
if lib_dir[-1] != os.path.sep:
lib_dir += os.path.sep
if path[:len(lib_dir)] != lib_dir:
agent = AGENT_LONG_VERSION
version = AGENT_VERSION
else:
agent = path[len(lib_dir):].split(os.path.sep)[0]
version = AGENT_NAME_PATTERN.match(agent).group(1)
return agent, FlexibleVersion(version)
```
If `path` is `/tmp/waagent/events` and `lib_dir` is `/tmp/waagent/`, `agent` becomes `events`.
`AGENT_NAME_PATTERN.match('events')` is `None`.
The current code crashes.
If I change it to:
```python
if path[:len(lib_dir)] != lib_dir:
agent = AGENT_LONG_VERSION
version = AGENT_VERSION
else:
agent = path[len(lib_dir):].split(os.path.sep)[0]
match = AGENT_NAME_PATTERN.match(agent)
if match:
version = match.group(1)
else:
agent = AGENT_LONG_VERSION
version = AGENT_VERSION
```
Then:
- If `path` is `/tmp/waagent/WALinuxAgent-2.2.0/something`, `agent` is `WALinuxAgent-2.2.0`, `match` is successful, `version` is `2.2.0`. Returns `('WALinuxAgent-2.2.0', FlexibleVersion('2.2.0'))`.
- If `path` is `/tmp/waagent/events`, `agent` is `events`, `match` is `None`. Returns `(AGENT_LONG_VERSION, FlexibleVersion(AGENT_VERSION))`.
This seems correct.
Wait, what happens if `path` is exactly `lib_dir`?
`path` is `/tmp/waagent/` (assuming it was normalized).
`lib_dir` is `/tmp/waagent/`.
`path[:len(lib_dir)]` is `/tmp/waagent/`.
`path[len(lib_dir):]` is `""`.
`"".split(os.path.sep)[0]` is `""`.
`AGENT_NAME_PATTERN.match("")` is `None`.
It will fall back to defaults. Correct.
Let's check the constants.
`AGENT_LONG_VERSION = "{0}-{1}".format(AGENT_NAME, AGENT_VERSION)`
`AGENT_NAME = "WALinuxAgent"`
`AGENT_VERSION = '2.2.2'`
So `AGENT_LONG_VERSION` is `"WALinuxAgent-2.2.2"`.
If we are in `/tmp/waagent/WALinuxAgent-2.2.0`, then `agent` is `WALinuxAgent-2.2.0`, `version` is `2.2.0`.
The return value will be `('WALinuxAgent-2.2.0', FlexibleVersion('2.2.0'))`.
Is it okay that if we are in `/tmp/waagent/events`, it returns `('WALinuxAgent-2.2.2', FlexibleVersion('2.2.2'))` (assuming 2.2.2 is the current version)? Yes, that's what the "Expect Result" implies ("Can run waagent command").
The goal of `set_current_agent` is to "ensure the agent will 'see itself' using the same name and version as the code that downloads agents". This usually happens when the agent is updated and the new version is running from its own directory.
Let's implement the fix.
TOOL CALL · edit_file
{
"filepath": "azurelinuxagent/common/version.py",
"new_string": " if path[:len(lib_dir)] != lib_dir:\n agent = AGENT_LONG_VERSION\n version = AGENT_VERSION\n else:\n agent = path[len(lib_dir):].split(os.path.sep)[0]\n match = AGENT_NAME_PATTERN.match(agent)\n if match:\n version = match.group(1)\n else:\n agent = AGENT_LONG_VERSION\n version = AGENT_VERSION\n return agent, FlexibleVersion(version)",
"old_string": " if path[:len(lib_dir)] != lib_dir:\n agent = AGENT_LONG_VERSION\n version = AGENT_VERSION\n else:\n agent = path[len(lib_dir):].split(os.path.sep)[0]\n version = AGENT_NAME_PATTERN.match(agent).group(1)\n return agent, FlexibleVersion(version)"
}Result of edit_file 717 characters
{
"status": "ok",
"filepath": "azurelinuxagent/common/version.py",
"occurrences": 1,
"strategy": "exact",
"diff": "--- a/azurelinuxagent/common/version.py\n+++ b/azurelinuxagent/common/version.py\n@@ -117,7 +117,12 @@\n version = AGENT_VERSION\n else:\n agent = path[len(lib_dir):].split(os.path.sep)[0]\n- version = AGENT_NAME_PATTERN.match(agent).group(1)\n+ match = AGENT_NAME_PATTERN.match(agent)\n+ if match:\n+ version = match.group(1)\n+ else:\n+ agent = AGENT_LONG_VERSION\n+ version = AGENT_VERSION\n return agent, FlexibleVersion(version)\n CURRENT_AGENT, CURRENT_VERSION = set_current_agent()\n \n",
"is_truncated": false
}Turn 6at 182 s198 tokens out10,347 prompt tokens
Now let's run the reproduction script again to make sure it's fixed.
TOOL CALL · run_command
{
"command": "python3 - <<'PY'\nimport os\nimport sys\nimport unittest.mock as mock\n\nwith mock.patch('azurelinuxagent.common.conf.get_lib_dir', return_value='/tmp/waagent'):\n os.makedirs('/tmp/waagent/events', exist_ok=True)\n os.chdir('/tmp/waagent/events')\n try:\n # Force reload since it might have been imported in the previous run in the same process\n # But here we are using python3 - <<'PY' which starts a new process.\n import azurelinuxagent.common.version\n print(\"Successfully imported\")\n except Exception as e:\n import traceback\n traceback.print_exc()\nPY\n"
}Result of run_command 83 characters
{
"status": "ok",
"stdout": "Successfully imported\n",
"stderr": "",
"exit_code": 0
}Turn 7at 199 s272 tokens out10,587 prompt tokens
The reproduction script now passes. Let's test the case where it SHOULD identify the agent version from the directory name. If `path` is `/tmp/waagent/WALinuxAgent-2.2.0/events`.
TOOL CALL · run_command
{
"command": "python3 - <<'PY'\nimport os\nimport unittest.mock as mock\nimport azurelinuxagent.common.conf as conf\n\n# We need to mock conf.get_lib_dir before importing version\nwith mock.patch('azurelinuxagent.common.conf.get_lib_dir', return_value='/tmp/waagent'):\n os.makedirs('/tmp/waagent/WALinuxAgent-2.2.0/events', exist_ok=True)\n os.chdir('/tmp/waagent/WALinuxAgent-2.2.0/events')\n \n # Import version\n import azurelinuxagent.common.version\n \n # To test set_current_agent again, we can call it directly\n agent, version = azurelinuxagent.common.version.set_current_agent()\n print(\"Agent: {0}, Version: {1}\".format(agent, version))\nPY\n"
}Result of run_command 103 characters
{
"status": "ok",
"stdout": "Agent: WALinuxAgent-2.2.0, Version: 2.2.0\n",
"stderr": "",
"exit_code": 0
}Turn 8at 211 s202 tokens out10,920 prompt tokens
Wait, `version` is a `FlexibleVersion` object. Printing it showed `2.2.0`. That's correct. One more test case: what if current directory is exactly `/tmp/waagent`?
TOOL CALL · run_command
{
"command": "python3 - <<'PY'\nimport os\nimport unittest.mock as mock\nimport azurelinuxagent.common.conf as conf\n\nwith mock.patch('azurelinuxagent.common.conf.get_lib_dir', return_value='/tmp/waagent'):\n os.makedirs('/tmp/waagent', exist_ok=True)\n os.chdir('/tmp/waagent')\n import azurelinuxagent.common.version\n agent, version = azurelinuxagent.common.version.set_current_agent()\n print(\"Agent: {0}, Version: {1}\".format(agent, version))\nPY\n"
}Result of run_command 103 characters
{
"status": "ok",
"stdout": "Agent: WALinuxAgent-2.2.2, Version: 2.2.2\n",
"stderr": "",
"exit_code": 0
}Turn 9at 219 s190 tokens out11,183 prompt tokens
Correct. It falls back to `AGENT_LONG_VERSION` (`WALinuxAgent-2.2.2`) and `AGENT_VERSION` (`2.2.2`). One last case: what if current directory is outside `/tmp/waagent`?
TOOL CALL · run_command
{
"command": "python3 - <<'PY'\nimport os\nimport unittest.mock as mock\nimport azurelinuxagent.common.conf as conf\n\nwith mock.patch('azurelinuxagent.common.conf.get_lib_dir', return_value='/tmp/waagent'):\n os.chdir('/tmp')\n import azurelinuxagent.common.version\n agent, version = azurelinuxagent.common.version.set_current_agent()\n print(\"Agent: {0}, Version: {1}\".format(agent, version))\nPY\n"
}Result of run_command 103 characters
{
"status": "ok",
"stdout": "Agent: WALinuxAgent-2.2.2, Version: 2.2.2\n",
"stderr": "",
"exit_code": 0
}Turn 10at 223 s85 tokens out11,434 prompt tokens
Everything seems correct. Wait, I should check if there are any other places where `AGENT_NAME_PATTERN.match(agent).group(1)` might be used without checking if `match` is `None`. Let's grep for `AGENT_NAME_PATTERN`.
TOOL CALL · run_command
{
"command": "grep -rn \"AGENT_NAME_PATTERN\" ."
}Result of run_command 555 characters
{
"status": "ok",
"stdout": "./azurelinuxagent/ga/update.py:46: AGENT_PATTERN, AGENT_NAME_PATTERN, AGENT_DIR_PATTERN, \\\n./azurelinuxagent/common/version.py:101:AGENT_NAME_PATTERN = re.compile(AGENT_PATTERN)\n./azurelinuxagent/common/version.py:120: match = AGENT_NAME_PATTERN.match(agent)\n./tests/common/test_version.py:64: version = AGENT_NAME_PATTERN.match(agent).group(1)\n",
"stderr": "grep: ./azurelinuxagent/common/__pycache__/version.cpython-37.pyc: binary file matches\n",
"exit_code": 0
}Turn 11at 230 s82 tokens out11,714 prompt tokens
The only other occurrence is in `tests/common/test_version.py`, which is a test and won't be submitted. Wait, I should run the existing tests to make sure I didn't break anything.
TOOL CALL · run_command
{
"command": "pytest tests/common/test_version.py -q --tb=short --no-header"
}Result of run_command 1,794 characters
{
"status": "ok",
"stdout": "....... [100%]\n=============================== warnings summary ===============================\nazurelinuxagent/common/utils/flexible_version.py:24\ntests/common/test_version.py::TestCurrentAgentName::test_extract_name_finds_installed\ntests/common/test_version.py::TestCurrentAgentName::test_extract_name_finds_latest_agent\n /workspace/azurelinuxagent/common/utils/flexible_version.py:24: DeprecationWarning: distutils Version classes are deprecated. Use packaging.version instead.\n version.Version.__init__(self)\n\nazurelinuxagent/common/version.py:65\n /workspace/azurelinuxagent/common/version.py:65: DeprecationWarning: dist() and linux_distribution() functions are deprecated in Python 3.5\n supported_dists=platform._supported_dists+('alpine',)))\n\nazurelinuxagent/common/version.py:66\n /workspace/azurelinuxagent/common/version.py:66: DeprecationWarning: dist() and linux_distribution() functions are deprecated in Python 3.5\n full_name = platform.linux_distribution()[0].strip()\n\nazurelinuxagent/common/osutil/freebsd.py:232\n /workspace/azurelinuxagent/common/osutil/freebsd.py:232: DeprecationWarning: invalid escape sequence \\(\n cmd_search_dev=\"camcontrol devlist | grep {0} | awk -F \\( '{{print $2}}'|awk -F , '{{print $1}}'\".format(output)\n\nazurelinuxagent/common/osutil/freebsd.py:241\n /workspace/azurelinuxagent/common/osutil/freebsd.py:241: DeprecationWarning: invalid escape sequence \\(\n cmd_search_dev=\"camcontrol devlist | grep {0} | awk -F \\( '{{print $2}}'|awk -F , '{{print $1}}'\".format(output)\n\n-- Docs: https://docs.pytest.org/en/stable/how-to/capture-warnings.html\n7 passed, 7 warnings in 0.10s\n",
"stderr": "",
"exit_code": 0
}Turn 12at 254 s339 tokens out12,370 prompt tokens
Tests passed.
Let's double check if there are any other parallel paths.
`set_current_agent` seems to be the only one doing this.
`set_goal_state_agent` does something similar:
```python
def set_goal_state_agent():
agent = None
pids = [pid for pid in os.listdir('/proc') if pid.isdigit()]
for pid in pids:
try:
pname = open(os.path.join('/proc', pid, 'cmdline'), 'rb').read()
match = EXT_HANDLER_REGEX.match(pname)
if match:
agent = match.group(1)
break
except IOError:
continue
if agent is None:
agent = CURRENT_VERSION
return agent
```
Here it correctly checks `if match:`.
One thing I noticed in my `edit_file` diff:
```diff
- version = AGENT_NAME_PATTERN.match(agent).group(1)
+ match = AGENT_NAME_PATTERN.match(agent)
+ if match:
+ version = match.group(1)
+ else:
+ agent = AGENT_LONG_VERSION
+ version = AGENT_VERSION
```
This looks solid.
Let's verify `git status --short` and `git diff` before submission.
TOOL CALL · run_command
{
"command": "git status --short && git diff"
}Result of run_command 816 characters
{
"status": "ok",
"stdout": " M azurelinuxagent/common/version.py\ndiff --git a/azurelinuxagent/common/version.py b/azurelinuxagent/common/version.py\nindex 1099e25..ac58b50 100644\n--- a/azurelinuxagent/common/version.py\n+++ b/azurelinuxagent/common/version.py\n@@ -117,7 +117,12 @@ def set_current_agent():\n version = AGENT_VERSION\n else:\n agent = path[len(lib_dir):].split(os.path.sep)[0]\n- version = AGENT_NAME_PATTERN.match(agent).group(1)\n+ match = AGENT_NAME_PATTERN.match(agent)\n+ if match:\n+ version = match.group(1)\n+ else:\n+ agent = AGENT_LONG_VERSION\n+ version = AGENT_VERSION\n return agent, FlexibleVersion(version)\n CURRENT_AGENT, CURRENT_VERSION = set_current_agent()\n \n",
"stderr": "",
"exit_code": 0
}Turn 13at 288 s644 tokens out13,007 prompt tokens
The diff is clean. No untracked files. Only modified the production source.
I'll do one final check of the `set_current_agent` logic.
```python
def set_current_agent():
path = os.getcwd()
lib_dir = conf.get_lib_dir()
if lib_dir[-1] != os.path.sep:
lib_dir += os.path.sep
if path[:len(lib_dir)] != lib_dir:
agent = AGENT_LONG_VERSION
version = AGENT_VERSION
else:
agent = path[len(lib_dir):].split(os.path.sep)[0]
match = AGENT_NAME_PATTERN.match(agent)
if match:
version = match.group(1)
else:
agent = AGENT_LONG_VERSION
version = AGENT_VERSION
return agent, FlexibleVersion(version)
```
If `path` is `/var/lib/waagent/events` and `lib_dir` is `/var/lib/waagent/`.
`path[:len(lib_dir)]` is `/var/lib/waagent/`.
`lib_dir` is `/var/lib/waagent/`.
They are equal.
`agent` = `path[len(lib_dir):].split(os.path.sep)[0]` = `"events".split('/')[0]` = `"events"`.
`match = AGENT_NAME_PATTERN.match("events")` -> `None`.
`agent` = `AGENT_LONG_VERSION` = `"WALinuxAgent-2.2.2"`.
`version` = `AGENT_VERSION` = `"2.2.2"`.
Returns `("WALinuxAgent-2.2.2", FlexibleVersion("2.2.2"))`.
If `path` is `/var/lib/waagent/WALinuxAgent-2.2.0/events` and `lib_dir` is `/var/lib/waagent/`.
`path[:len(lib_dir)]` is `/var/lib/waagent/`.
`agent` = `path[len(lib_dir):].split(os.path.sep)[0]` = `"WALinuxAgent-2.2.0/events".split('/')[0]` = `"WALinuxAgent-2.2.0"`.
`match = AGENT_NAME_PATTERN.match("WALinuxAgent-2.2.0")` -> `Match object`.
`version = match.group(1)` = `"2.2.0"`.
Returns `("WALinuxAgent-2.2.0", FlexibleVersion("2.2.0"))`.
This looks correct and covers all cases mentioned and implied.
TOOL CALL · submit_patch
Result of submit_patch 55 characters
{
"status": "ok",
"patch_size": 700,
"files_changed": 1
}Turn 14at 303 s144 tokens out13,690 prompt tokens
The patch has been submitted.
Turn 15at 303 s
The issue was caused by a missing check for `None` when matching the agent name from the current working directory path in `azurelinuxagent/common/version.py`. When the current working directory was a subdirectory of `/var/lib/waagent` (like `/var/lib/waagent/events`) but did not follow the expected `WALinuxAgent-X.X.X` pattern, `AGENT_NAME_PATTERN.match(agent)` returned `None`, leading to an `AttributeError`. I updated `set_current_agent` to properly check the match result and fall back to the default agent version when no match is found.
Model calls (not matched to turns)
Generated tokens 287 tokens · stopped: STOP
The issue describes a crash when running `waagent` commands (like `waagent -version`) from within any directory under `/var/lib/waagent`.
The traceback points to `azurelinuxagent/common/version.py` in the `set_current_agent` function:
```python
File "/usr/lib/python2.7/site-packages/azurelinuxagent/common/version.py", line 87, in <module>
CURRENT_AGENT, CURRENT_VERSION = set_current_agent()
File "/usr/lib/python2.7/site-packages/azurelinuxagent/common/version.py", line 85, in set_current_agent
version = AGENT_NAME_PATTERN.match(agent).group(1)
AttributeError: 'NoneType' object has no attribute 'group'
```
This suggests `AGENT_NAME_PATTERN.match(agent)` is returning `None`, and the code is trying to call `.group(1)` on it.
Let's examine `azurelinuxagent/common/version.py` around line 85.<|channel>thought
The issue describes a crash when running `waagent` commands (like `waagent -version`) from within any directory under `/var/lib/waagent`.
The traceback points to `azurelinuxagent/common/version.py` in the `set_current_agent` function:
```python
File "/usr/lib/python2.7/site-packages/azurelinuxagent/common/version.py", line 87, in <module>
CURRENT_AGENT, CURRENT_VERSION = set_current_agent()
File "/usr/lib/python2.7/site-packages/azurelinuxagent/common/version.py", line 85, in set_current_agent
version = AGENT_NAME_PATTERN.match(agent).group(1)
AttributeError: 'NoneType' object has no attribute 'group'
```
This suggests `AGENT_NAME_PATTERN.match(agent)` is returning `None`, and the code is trying to call `.group(1)` on it.
Let's examine `azurelinuxagent/common/version.py` around line 85.<channel|><|tool_call>call:read_file{filepath:<|"|>azurelinuxagent/common/version.py<|"|>,start_line:70,end_line:100}<tool_call|><|tool_response>
Generated tokens 156 tokens · stopped: STOP
Wait, the line numbers in the traceback are slightly different from the provided `read_file` result, or I'm looking at the wrong part. Traceback said: Line 87: `CURRENT_AGENT, CURRENT_VERSION = set_current_agent()` Line 85: `version = AGENT_NAME_PATTERN.match(agent).group(1)` Let me read more of `azurelinuxagent/common/version.py`, especially the `set_current_agent` function. I'll read from line 101 to the end.
Wait, the line numbers in the traceback are slightly different from the provided `read_file` result, or I'm looking at the wrong part.
Traceback said:
Line 87: `CURRENT_AGENT, CURRENT_VERSION = set_current_agent()`
Line 85: `version = AGENT_NAME_PATTERN.match(agent).group(1)`
Let me read more of `azurelinuxagent/common/version.py`, especially the `set_current_agent` function. I'll read from line 101 to the end.
<channel|><|tool_call>call:read_file{filepath:<|"|>azurelinuxagent/common/version.py<|"|>,start_line:101}<tool_call|><|tool_response>
Generated tokens 740 tokens · stopped: STOP
Okay, I see the code in `set_current_agent()`:
```python
def set_current_agent():
path = os.getcwd()
lib_dir = conf.get_lib_dir()
if lib_dir[-1] != os.path.sep:
lib_dir += os.path.sep
if path[:len(lib_dir)] != lib_dir:
agent = AGENT_LONG_VERSION
version = AGENT_VERSION
else:
agent = path[len(lib_dir):].split(os.path.sep)[0]
version = AGENT_NAME_PATTERN.match(agent).group(1)
return agent, FlexibleVersion(version)
```
If `path` starts with `lib_dir`, it tries to extract the agent name from the path.
The problem statement says the crash happens when running from `/var/lib/waagent`.
Presumably `conf.get_lib_dir()` returns `/var/lib/waagent`.
If `path` is `/var/lib/waagent/events`, then `lib_dir` is `/var/lib/waagent/`.
`path[:len(lib_dir)]` is `/var/lib/waagent/`, which equals `lib_dir`.
Then it goes into the `else` block:
`agent = path[len(lib_dir):].split(os.path.sep)[0]`
`path[len(lib_dir):]` is `events`.
`agent` becomes `events`.
Then `AGENT_NAME_PATTERN.match("events")` is called.
`AGENT_NAME_PATTERN` is `re.compile(AGENT_PATTERN)`, where `AGENT_PATTERN` is `"WALinuxAgent-(.*)"`.
`AGENT_NAME_PATTERN.match("events")` returns `None`.
Calling `.group(1)` on `None` raises the `AttributeError`.
So the problem is that if the current working directory is inside `lib_dir`, but doesn't start with the agent's name format (`WALinuxAgent-X.X.X`), it crashes.
The common case seems to be that `lib_dir` is the base directory where agents might be stored, and the agent code expects that if you're running from there, you're running from inside a specific versioned agent directory (e.g., `/var/lib/waagent/WALinuxAgent-2.2.0/`).
However, if you're just in `/var/lib/waagent` or a subdirectory of it a that doesn't match the pattern, it fails.
Wait, if `path` is `/var/lib/waagent/events`, and `lib_dir` is `/var/lib/waagent/`, it's trying to treat `events` as the agent folder name.
If the agent is not running from a versioned directory under `lib_dir`, it should probably fall back to the default `AGENT_LONG_VERSION` and `AGENT_VERSION`.
Let's verify this behavior with a reproduction script.
I need to know what `conf.get_lib_dir()` returns. I should check `azurelinuxagent/common/conf.py`.Okay, I see the code in `set_current_agent()`:
```python
def set_current_agent():
path = os.getcwd()
lib_dir = conf.get_lib_dir()
if lib_dir[-1] != os.path.sep:
lib_dir += os.path.sep
if path[:len(lib_dir)] != lib_dir:
agent = AGENT_LONG_VERSION
version = AGENT_VERSION
else:
agent = path[len(lib_dir):].split(os.path.sep)[0]
version = AGENT_NAME_PATTERN.match(agent).group(1)
return agent, FlexibleVersion(version)
```
If `path` starts with `lib_dir`, it tries to extract the agent name from the path.
The problem statement says the crash happens when running from `/var/lib/waagent`.
Presumably `conf.get_lib_dir()` returns `/var/lib/waagent`.
If `path` is `/var/lib/waagent/events`, then `lib_dir` is `/var/lib/waagent/`.
`path[:len(lib_dir)]` is `/var/lib/waagent/`, which equals `lib_dir`.
Then it goes into the `else` block:
`agent = path[len(lib_dir):].split(os.path.sep)[0]`
`path[len(lib_dir):]` is `events`.
`agent` becomes `events`.
Then `AGENT_NAME_PATTERN.match("events")` is called.
`AGENT_NAME_PATTERN` is `re.compile(AGENT_PATTERN)`, where `AGENT_PATTERN` is `"WALinuxAgent-(.*)"`.
`AGENT_NAME_PATTERN.match("events")` returns `None`.
Calling `.group(1)` on `None` raises the `AttributeError`.
So the problem is that if the current working directory is inside `lib_dir`, but doesn't start with the agent's name format (`WALinuxAgent-X.X.X`), it crashes.
The common case seems to be that `lib_dir` is the base directory where agents might be stored, and the agent code expects that if you're running from there, you're running from inside a specific versioned agent directory (e.g., `/var/lib/waagent/WALinuxAgent-2.2.0/`).
However, if you're just in `/var/lib/waagent` or a subdirectory of it a that doesn't match the pattern, it fails.
Wait, if `path` is `/var/lib/waagent/events`, and `lib_dir` is `/var/lib/waagent/`, it's trying to treat `events` as the agent folder name.
If the agent is not running from a versioned directory under `lib_dir`, it should probably fall back to the default `AGENT_LONG_VERSION` and `AGENT_VERSION`.
Let's verify this behavior with a reproduction script.
I need to know what `conf.get_lib_dir()` returns. I should check `azurelinuxagent/common/conf.py`.<channel|><|tool_call>call:read_file{filepath:<|"|>azurelinuxagent/common/conf.py<|"|>}<tool_call|><|tool_response>
Generated tokens 460 tokens · stopped: STOP
Yes, `get_lib_dir` returns `conf.get("Lib.Dir", "/var/lib/waagent")`.
Now I can write a reproduction script. I'll mock `os.getcwd` and `conf.get_lib_dir` if necessary, or just create the directory structure and run the code.
Since I'm in a sandbox, I can just create `/var/lib/waagent/events` (or a subdirectory of current dir and mock `conf.get_lib_dir` to return it).
Actually, the simplest way to reproduce is to run a Python script that imports `azurelinuxagent.common.version` while the current working directory is a subdirectory of whatever `get_lib_dir` returns.
Wait, `azurelinuxagent.common.version` is imported during the module initialization.
`CURRENT_AGENT, CURRENT_VERSION = set_current_agent()` is called at the module level.
Let's try to reproduce it.
Yes, `get_lib_dir` returns `conf.get("Lib.Dir", "/var/lib/waagent")`.
Now I can write a reproduction script. I'll mock `os.getcwd` and `conf.get_lib_dir` if necessary, or just create the directory structure and run the code.
Since I'm in a sandbox, I can just create `/var/lib/waagent/events` (or a subdirectory of current dir and mock `conf.get_lib_dir` to return it).
Actually, the simplest way to reproduce is to run a Python script that imports `azurelinuxagent.common.version` while the current working directory is a subdirectory of whatever `get_lib_dir` returns.
Wait, `azurelinuxagent.common.version` is imported during the module initialization.
`CURRENT_AGENT, CURRENT_VERSION = set_current_agent()` is called at the module level.
Let's try to reproduce it.
<channel|><|tool_call>call:run_command{command:<|"|>python3 - <<'PY'
import os
import sys
# Mocking azurelinuxagent.common.conf.get_lib_dir to return current directory
# because we might not have permissions to /var/lib/waagent or we want to avoid polluting it.
# Actually, we can just mock conf.get_lib_dir.
import unittest.mock as mock
# We need to mock conf.get_lib_dir BEFORE importing azurelinuxagent.common.version
# But azurelinuxagent.common.version imports azurelinuxagent.common.conf
# So we can mock it.
with mock.patch('azurelinuxagent.common.conf.get_lib_dir', return_value='/tmp/waagent'):
os.makedirs('/tmp/waagent/events', exist_ok=True)
os.chdir('/tmp/waagent/events')
try:
import azurelinuxagent.common.version
print("Successfully imported")
except Exception as e:
import traceback
traceback.print_exc()
PY
<|"|>}<tool_call|><|tool_response>
Generated tokens 1,571 tokens · stopped: STOP
Perfect. The reproduction script confirms the bug.
Now let's fix it.
The logic in `set_current_agent` should be:
1. Get current directory `path`.
2. Get `lib_dir`.
3. Ensure `lib_dir` ends with separator.
4. If `path` doesn't start with `lib_dir`, use default `AGENT_LONG_VERSION` and `AGENT_VERSION`.
5. If `path` starts with `lib_dir`, try to extract the agent name from the first component after `lib_dir`.
6. If that extracted name matches `AGENT_NAME_PATTERN`, use it to get the version.
7. If it DOES NOT match `AGENT_NAME_PATTERN`, fall back to default `AGENT_LONG_VERSION` and `AGENT_VERSION`.
Current code:
```python
if path[:len(lib_dir)] != lib_dir:
agent = AGENT_LONG_VERSION
version = AGENT_VERSION
else:
agent = path[len(lib_dir):].split(os.path.sep)[0]
version = AGENT_NAME_PATTERN.match(agent).group(1)
```
Fixed code:
```python
if path[:len(lib_dir)] != lib_dir:
agent = AGENT_LONG_VERSION
version = AGENT_VERSION
else:
agent = path[len(lib_dir):].split(os.path.sep)[0]
match = AGENT_NAME_PATTERN.match(agent)
if match:
version = match.group(1)
else:
agent = AGENT_LONG_VERSION
version = AGENT_VERSION
```
Wait, if `match` is `None`, `agent` should also be reset to `AGENT_LONG_VERSION`.
Let's review `set_current_agent` again.
```python
def set_current_agent():
path = os.getcwd()
lib_dir = conf.get_lib_dir()
if lib_dir[-1] != os.path.sep:
lib_dir += os.path.sep
if path[:len(lib_dir)] != lib_dir:
agent = AGENT_LONG_VERSION
version = AGENT_VERSION
else:
agent = path[len(lib_dir):].split(os.path.sep)[0]
version = AGENT_NAME_PATTERN.match(agent).group(1)
return agent, FlexibleVersion(version)
```
If `path` is `/tmp/waagent/events` and `lib_dir` is `/tmp/waagent/`, `agent` becomes `events`.
`AGENT_NAME_PATTERN.match('events')` is `None`.
The current code crashes.
If I change it to:
```python
if path[:len(lib_dir)] != lib_dir:
agent = AGENT_LONG_VERSION
version = AGENT_VERSION
else:
agent = path[len(lib_dir):].split(os.path.sep)[0]
match = AGENT_NAME_PATTERN.match(agent)
if match:
version = match.group(1)
else:
agent = AGENT_LONG_VERSION
version = AGENT_VERSION
```
Then:
- If `path` is `/tmp/waagent/WALinuxAgent-2.2.0/something`, `agent` is `WALinuxAgent-2.2.0`, `match` is successful, `version` is `2.2.0`. Returns `('WALinuxAgent-2.2.0', FlexibleVersion('2.2.0'))`.
- If `path` is `/tmp/waagent/events`, `agent` is `events`, `match` is `None`. Returns `(AGENT_LONG_VERSION, FlexibleVersion(AGENT_VERSION))`.
This seems correct.
Wait, what happens if `path` is exactly `lib_dir`?
`path` is `/tmp/waagent/` (assuming it was normalized).
`lib_dir` is `/tmp/waagent/`.
`path[:len(lib_dir)]` is `/tmp/waagent/`.
`path[len(lib_dir):]` is `""`.
`"".split(os.path.sep)[0]` is `""`.
`AGENT_NAME_PATTERN.match("")` is `None`.
It will fall back to defaults. Correct.
Let's check the constants.
`AGENT_LONG_VERSION = "{0}-{1}".format(AGENT_NAME, AGENT_VERSION)`
`AGENT_NAME = "WALinuxAgent"`
`AGENT_VERSION = '2.2.2'`
So `AGENT_LONG_VERSION` is `"WALinuxAgent-2.2.2"`.
If we are in `/tmp/waagent/WALinuxAgent-2.2.0`, then `agent` is `WALinuxAgent-2.2.0`, `version` is `2.2.0`.
The return value will be `('WALinuxAgent-2.2.0', FlexibleVersion('2.2.0'))`.
Is it okay that if we are in `/tmp/waagent/events`, it returns `('WALinuxAgent-2.2.2', FlexibleVersion('2.2.2'))` (assuming 2.2.2 is the current version)? Yes, that's what the "Expect Result" implies ("Can run waagent command").
The goal of `set_current_agent` is to "ensure the agent will 'see itself' using the same name and version as the code that downloads agents". This usually happens when the agent is updated and the new version is running from its own directory.
Let's implement the fix.
Perfect. The reproduction script confirms the bug.
Now let's fix it.
The logic in `set_current_agent` should be:
1. Get current directory `path`.
2. Get `lib_dir`.
3. Ensure `lib_dir` ends with separator.
4. If `path` doesn't start with `lib_dir`, use default `AGENT_LONG_VERSION` and `AGENT_VERSION`.
5. If `path` starts with `lib_dir`, try to extract the agent name from the first component after `lib_dir`.
6. If that extracted name matches `AGENT_NAME_PATTERN`, use it to get the version.
7. If it DOES NOT match `AGENT_NAME_PATTERN`, fall back to default `AGENT_LONG_VERSION` and `AGENT_VERSION`.
Current code:
```python
if path[:len(lib_dir)] != lib_dir:
agent = AGENT_LONG_VERSION
version = AGENT_VERSION
else:
agent = path[len(lib_dir):].split(os.path.sep)[0]
version = AGENT_NAME_PATTERN.match(agent).group(1)
```
Fixed code:
```python
if path[:len(lib_dir)] != lib_dir:
agent = AGENT_LONG_VERSION
version = AGENT_VERSION
else:
agent = path[len(lib_dir):].split(os.path.sep)[0]
match = AGENT_NAME_PATTERN.match(agent)
if match:
version = match.group(1)
else:
agent = AGENT_LONG_VERSION
version = AGENT_VERSION
```
Wait, if `match` is `None`, `agent` should also be reset to `AGENT_LONG_VERSION`.
Let's review `set_current_agent` again.
```python
def set_current_agent():
path = os.getcwd()
lib_dir = conf.get_lib_dir()
if lib_dir[-1] != os.path.sep:
lib_dir += os.path.sep
if path[:len(lib_dir)] != lib_dir:
agent = AGENT_LONG_VERSION
version = AGENT_VERSION
else:
agent = path[len(lib_dir):].split(os.path.sep)[0]
version = AGENT_NAME_PATTERN.match(agent).group(1)
return agent, FlexibleVersion(version)
```
If `path` is `/tmp/waagent/events` and `lib_dir` is `/tmp/waagent/`, `agent` becomes `events`.
`AGENT_NAME_PATTERN.match('events')` is `None`.
The current code crashes.
If I change it to:
```python
if path[:len(lib_dir)] != lib_dir:
agent = AGENT_LONG_VERSION
version = AGENT_VERSION
else:
agent = path[len(lib_dir):].split(os.path.sep)[0]
match = AGENT_NAME_PATTERN.match(agent)
if match:
version = match.group(1)
else:
agent = AGENT_LONG_VERSION
version = AGENT_VERSION
```
Then:
- If `path` is `/tmp/waagent/WALinuxAgent-2.2.0/something`, `agent` is `WALinuxAgent-2.2.0`, `match` is successful, `version` is `2.2.0`. Returns `('WALinuxAgent-2.2.0', FlexibleVersion('2.2.0'))`.
- If `path` is `/tmp/waagent/events`, `agent` is `events`, `match` is `None`. Returns `(AGENT_LONG_VERSION, FlexibleVersion(AGENT_VERSION))`.
This seems correct.
Wait, what happens if `path` is exactly `lib_dir`?
`path` is `/tmp/waagent/` (assuming it was normalized).
`lib_dir` is `/tmp/waagent/`.
`path[:len(lib_dir)]` is `/tmp/waagent/`.
`path[len(lib_dir):]` is `""`.
`"".split(os.path.sep)[0]` is `""`.
`AGENT_NAME_PATTERN.match("")` is `None`.
It will fall back to defaults. Correct.
Let's check the constants.
`AGENT_LONG_VERSION = "{0}-{1}".format(AGENT_NAME, AGENT_VERSION)`
`AGENT_NAME = "WALinuxAgent"`
`AGENT_VERSION = '2.2.2'`
So `AGENT_LONG_VERSION` is `"WALinuxAgent-2.2.2"`.
If we are in `/tmp/waagent/WALinuxAgent-2.2.0`, then `agent` is `WALinuxAgent-2.2.0`, `version` is `2.2.0`.
The return value will be `('WALinuxAgent-2.2.0', FlexibleVersion('2.2.0'))`.
Is it okay that if we are in `/tmp/waagent/events`, it returns `('WALinuxAgent-2.2.2', FlexibleVersion('2.2.2'))` (assuming 2.2.2 is the current version)? Yes, that's what the "Expect Result" implies ("Can run waagent command").
The goal of `set_current_agent` is to "ensure the agent will 'see itself' using the same name and version as the code that downloads agents". This usually happens when the agent is updated and the new version is running from its own directory.
Let's implement the fix.
<channel|><|tool_call>call:edit_file{filepath:<|"|>azurelinuxagent/common/version.py<|"|>,new_string:<|"|> if path[:len(lib_dir)] != lib_dir:
agent = AGENT_LONG_VERSION
version = AGENT_VERSION
else:
agent = path[len(lib_dir):].split(os.path.sep)[0]
match = AGENT_NAME_PATTERN.match(agent)
if match:
version = match.group(1)
else:
agent = AGENT_LONG_VERSION
version = AGENT_VERSION
return agent, FlexibleVersion(version)<|"|>,old_string:<|"|> if path[:len(lib_dir)] != lib_dir:
agent = AGENT_LONG_VERSION
version = AGENT_VERSION
else:
agent = path[len(lib_dir):].split(os.path.sep)[0]
version = AGENT_NAME_PATTERN.match(agent).group(1)
return agent, FlexibleVersion(version)<|"|>}<tool_call|><|tool_response>
Generated tokens 198 tokens · stopped: STOP
Now let's run the reproduction script again to make sure it's fixed.
Now let's run the reproduction script again to make sure it's fixed.
<channel|><|tool_call>call:run_command{command:<|"|>python3 - <<'PY'
import os
import sys
import unittest.mock as mock
with mock.patch('azurelinuxagent.common.conf.get_lib_dir', return_value='/tmp/waagent'):
os.makedirs('/tmp/waagent/events', exist_ok=True)
os.chdir('/tmp/waagent/events')
try:
# Force reload since it might have been imported in the previous run in the same process
# But here we are using python3 - <<'PY' which starts a new process.
import azurelinuxagent.common.version
print("Successfully imported")
except Exception as e:
import traceback
traceback.print_exc()
PY
<|"|>}<tool_call|><|tool_response>
Generated tokens 272 tokens · stopped: STOP
The reproduction script now passes. Let's test the case where it SHOULD identify the agent version from the directory name. If `path` is `/tmp/waagent/WALinuxAgent-2.2.0/events`.
The reproduction script now passes.
Let's test the case where it SHOULD identify the agent version from the directory name.
If `path` is `/tmp/waagent/WALinuxAgent-2.2.0/events`.
<channel|><|tool_call>call:run_command{command:<|"|>python3 - <<'PY'
import os
import unittest.mock as mock
import azurelinuxagent.common.conf as conf
# We need to mock conf.get_lib_dir before importing version
with mock.patch('azurelinuxagent.common.conf.get_lib_dir', return_value='/tmp/waagent'):
os.makedirs('/tmp/waagent/WALinuxAgent-2.2.0/events', exist_ok=True)
os.chdir('/tmp/waagent/WALinuxAgent-2.2.0/events')
# Import version
import azurelinuxagent.common.version
# To test set_current_agent again, we can call it directly
agent, version = azurelinuxagent.common.version.set_current_agent()
print("Agent: {0}, Version: {1}".format(agent, version))
PY
<|"|>}<tool_call|><|tool_response>
Generated tokens 202 tokens · stopped: STOP
Wait, `version` is a `FlexibleVersion` object. Printing it showed `2.2.0`. That's correct. One more test case: what if current directory is exactly `/tmp/waagent`?
Wait, `version` is a `FlexibleVersion` object. Printing it showed `2.2.0`.
That's correct.
One more test case: what if current directory is exactly `/tmp/waagent`?
<channel|><|tool_call>call:run_command{command:<|"|>python3 - <<'PY'
import os
import unittest.mock as mock
import azurelinuxagent.common.conf as conf
with mock.patch('azurelinuxagent.common.conf.get_lib_dir', return_value='/tmp/waagent'):
os.makedirs('/tmp/waagent', exist_ok=True)
os.chdir('/tmp/waagent')
import azurelinuxagent.common.version
agent, version = azurelinuxagent.common.version.set_current_agent()
print("Agent: {0}, Version: {1}".format(agent, version))
PY
<|"|>}<tool_call|><|tool_response>
Generated tokens 190 tokens · stopped: STOP
Correct. It falls back to `AGENT_LONG_VERSION` (`WALinuxAgent-2.2.2`) and `AGENT_VERSION` (`2.2.2`). One last case: what if current directory is outside `/tmp/waagent`?
Correct. It falls back to `AGENT_LONG_VERSION` (`WALinuxAgent-2.2.2`) and `AGENT_VERSION` (`2.2.2`).
One last case: what if current directory is outside `/tmp/waagent`?
<channel|><|tool_call>call:run_command{command:<|"|>python3 - <<'PY'
import os
import unittest.mock as mock
import azurelinuxagent.common.conf as conf
with mock.patch('azurelinuxagent.common.conf.get_lib_dir', return_value='/tmp/waagent'):
os.chdir('/tmp')
import azurelinuxagent.common.version
agent, version = azurelinuxagent.common.version.set_current_agent()
print("Agent: {0}, Version: {1}".format(agent, version))
PY
<|"|>}<tool_call|><|tool_response>
Generated tokens 85 tokens · stopped: STOP
Everything seems correct. Wait, I should check if there are any other places where `AGENT_NAME_PATTERN.match(agent).group(1)` might be used without checking if `match` is `None`. Let's grep for `AGENT_NAME_PATTERN`.
Everything seems correct.
Wait, I should check if there are any other places where `AGENT_NAME_PATTERN.match(agent).group(1)` might be used without checking if `match` is `None`.
Let's grep for `AGENT_NAME_PATTERN`.
<channel|><|tool_call>call:run_command{command:<|"|>grep -rn "AGENT_NAME_PATTERN" .<|"|>}<tool_call|><|tool_response>
Generated tokens 82 tokens · stopped: STOP
The only other occurrence is in `tests/common/test_version.py`, which is a test and won't be submitted. Wait, I should run the existing tests to make sure I didn't break anything.
The only other occurrence is in `tests/common/test_version.py`, which is a test and won't be submitted.
Wait, I should run the existing tests to make sure I didn't break anything.<channel|><|tool_call>call:run_command{command:<|"|>pytest tests/common/test_version.py -q --tb=short --no-header<|"|>}<tool_call|><|tool_response>
Generated tokens 339 tokens · stopped: STOP
Tests passed.
Let's double check if there are any other parallel paths.
`set_current_agent` seems to be the only one doing this.
`set_goal_state_agent` does something similar:
```python
def set_goal_state_agent():
agent = None
pids = [pid for pid in os.listdir('/proc') if pid.isdigit()]
for pid in pids:
try:
pname = open(os.path.join('/proc', pid, 'cmdline'), 'rb').read()
match = EXT_HANDLER_REGEX.match(pname)
if match:
agent = match.group(1)
break
except IOError:
continue
if agent is None:
agent = CURRENT_VERSION
return agent
```
Here it correctly checks `if match:`.
One thing I noticed in my `edit_file` diff:
```diff
- version = AGENT_NAME_PATTERN.match(agent).group(1)
+ match = AGENT_NAME_PATTERN.match(agent)
+ if match:
+ version = match.group(1)
+ else:
+ agent = AGENT_LONG_VERSION
+ version = AGENT_VERSION
```
This looks solid.
Let's verify `git status --short` and `git diff` before submission.Tests passed.
Let's double check if there are any other parallel paths.
`set_current_agent` seems to be the only one doing this.
`set_goal_state_agent` does something similar:
```python
def set_goal_state_agent():
agent = None
pids = [pid for pid in os.listdir('/proc') if pid.isdigit()]
for pid in pids:
try:
pname = open(os.path.join('/proc', pid, 'cmdline'), 'rb').read()
match = EXT_HANDLER_REGEX.match(pname)
if match:
agent = match.group(1)
break
except IOError:
continue
if agent is None:
agent = CURRENT_VERSION
return agent
```
Here it correctly checks `if match:`.
One thing I noticed in my `edit_file` diff:
```diff
- version = AGENT_NAME_PATTERN.match(agent).group(1)
+ match = AGENT_NAME_PATTERN.match(agent)
+ if match:
+ version = match.group(1)
+ else:
+ agent = AGENT_LONG_VERSION
+ version = AGENT_VERSION
```
This looks solid.
Let's verify `git status --short` and `git diff` before submission.<channel|><|tool_call>call:run_command{command:<|"|>git status --short && git diff<|"|>}<tool_call|><|tool_response>
Generated tokens 644 tokens · stopped: STOP
The diff is clean. No untracked files. Only modified the production source.
I'll do one final check of the `set_current_agent` logic.
```python
def set_current_agent():
path = os.getcwd()
lib_dir = conf.get_lib_dir()
if lib_dir[-1] != os.path.sep:
lib_dir += os.path.sep
if path[:len(lib_dir)] != lib_dir:
agent = AGENT_LONG_VERSION
version = AGENT_VERSION
else:
agent = path[len(lib_dir):].split(os.path.sep)[0]
match = AGENT_NAME_PATTERN.match(agent)
if match:
version = match.group(1)
else:
agent = AGENT_LONG_VERSION
version = AGENT_VERSION
return agent, FlexibleVersion(version)
```
If `path` is `/var/lib/waagent/events` and `lib_dir` is `/var/lib/waagent/`.
`path[:len(lib_dir)]` is `/var/lib/waagent/`.
`lib_dir` is `/var/lib/waagent/`.
They are equal.
`agent` = `path[len(lib_dir):].split(os.path.sep)[0]` = `"events".split('/')[0]` = `"events"`.
`match = AGENT_NAME_PATTERN.match("events")` -> `None`.
`agent` = `AGENT_LONG_VERSION` = `"WALinuxAgent-2.2.2"`.
`version` = `AGENT_VERSION` = `"2.2.2"`.
Returns `("WALinuxAgent-2.2.2", FlexibleVersion("2.2.2"))`.
If `path` is `/var/lib/waagent/WALinuxAgent-2.2.0/events` and `lib_dir` is `/var/lib/waagent/`.
`path[:len(lib_dir)]` is `/var/lib/waagent/`.
`agent` = `path[len(lib_dir):].split(os.path.sep)[0]` = `"WALinuxAgent-2.2.0/events".split('/')[0]` = `"WALinuxAgent-2.2.0"`.
`match = AGENT_NAME_PATTERN.match("WALinuxAgent-2.2.0")` -> `Match object`.
`version = match.group(1)` = `"2.2.0"`.
Returns `("WALinuxAgent-2.2.0", FlexibleVersion("2.2.0"))`.
This looks correct and covers all cases mentioned and implied.
The diff is clean. No untracked files. Only modified the production source.
I'll do one final check of the `set_current_agent` logic.
```python
def set_current_agent():
path = os.getcwd()
lib_dir = conf.get_lib_dir()
if lib_dir[-1] != os.path.sep:
lib_dir += os.path.sep
if path[:len(lib_dir)] != lib_dir:
agent = AGENT_LONG_VERSION
version = AGENT_VERSION
else:
agent = path[len(lib_dir):].split(os.path.sep)[0]
match = AGENT_NAME_PATTERN.match(agent)
if match:
version = match.group(1)
else:
agent = AGENT_LONG_VERSION
version = AGENT_VERSION
return agent, FlexibleVersion(version)
```
If `path` is `/var/lib/waagent/events` and `lib_dir` is `/var/lib/waagent/`.
`path[:len(lib_dir)]` is `/var/lib/waagent/`.
`lib_dir` is `/var/lib/waagent/`.
They are equal.
`agent` = `path[len(lib_dir):].split(os.path.sep)[0]` = `"events".split('/')[0]` = `"events"`.
`match = AGENT_NAME_PATTERN.match("events")` -> `None`.
`agent` = `AGENT_LONG_VERSION` = `"WALinuxAgent-2.2.2"`.
`version` = `AGENT_VERSION` = `"2.2.2"`.
Returns `("WALinuxAgent-2.2.2", FlexibleVersion("2.2.2"))`.
If `path` is `/var/lib/waagent/WALinuxAgent-2.2.0/events` and `lib_dir` is `/var/lib/waagent/`.
`path[:len(lib_dir)]` is `/var/lib/waagent/`.
`agent` = `path[len(lib_dir):].split(os.path.sep)[0]` = `"WALinuxAgent-2.2.0/events".split('/')[0]` = `"WALinuxAgent-2.2.0"`.
`match = AGENT_NAME_PATTERN.match("WALinuxAgent-2.2.0")` -> `Match object`.
`version = match.group(1)` = `"2.2.0"`.
Returns `("WALinuxAgent-2.2.0", FlexibleVersion("2.2.0"))`.
This looks correct and covers all cases mentioned and implied.
<channel|><|tool_call>call:submit_patch{}<tool_call|><|tool_response>
Patch, tests and logs
Final code change Included
diff --git a/azurelinuxagent/common/version.py b/azurelinuxagent/common/version.py
index 1099e25..ac58b50 100644
--- a/azurelinuxagent/common/version.py
+++ b/azurelinuxagent/common/version.py
@@ -117,7 +117,12 @@ def set_current_agent():
version = AGENT_VERSION
else:
agent = path[len(lib_dir):].split(os.path.sep)[0]
- version = AGENT_NAME_PATTERN.match(agent).group(1)
+ match = AGENT_NAME_PATTERN.match(agent)
+ if match:
+ version = match.group(1)
+ else:
+ agent = AGENT_LONG_VERSION
+ version = AGENT_VERSION
return agent, FlexibleVersion(version)
CURRENT_AGENT, CURRENT_VERSION = set_current_agent()
Test output Included
============================= test session starts ============================== collected 9 items tests/common/test_version.py ......... [100%] ==================================== PASSES ==================================== - generated xml file: /tmp/rebench-grade-fb4dca3671974336a7c4c96e58b7d53a.xml -- =========================== short test summary info ============================ PASSED tests/common/test_version.py::TestCurrentAgentName::test_extract_name_finds_installed PASSED tests/common/test_version.py::TestCurrentAgentName::test_extract_name_finds_latest_agent PASSED tests/common/test_version.py::TestCurrentAgentName::test_extract_name_in_path_finds_installed PASSED tests/common/test_version.py::TestCurrentAgentName::test_extract_name_root_finds_installed PASSED tests/common/test_version.py::TestGetF5Platforms::test_get_f5_platform_bigip_12_0_0 PASSED tests/common/test_version.py::TestGetF5Platforms::test_get_f5_platform_bigip_12_1_0_hf1 PASSED tests/common/test_version.py::TestGetF5Platforms::test_get_f5_platform_bigip_12_1_1 PASSED tests/common/test_version.py::TestGetF5Platforms::test_get_f5_platform_bigiq_5_1_0 PASSED tests/common/test_version.py::TestGetF5Platforms::test_get_f5_platform_iworkflow_2_0_1 ============================== 9 passed in 0.13s ===============================
Test errors Included
Test report (JUnit) Included
<?xml version="1.0" encoding="utf-8"?><testsuites><testsuite errors="0" failures="0" hostname="eea0b438fd26" name="pytest" skipped="0" tests="9" time="0.136" timestamp="2026-11-14T03:24:10.931175"><testcase classname="tests.common.test_version.TestCurrentAgentName" name="test_extract_name_finds_installed" time="0.001" /><testcase classname="tests.common.test_version.TestCurrentAgentName" name="test_extract_name_finds_latest_agent" time="0.001" /><testcase classname="tests.common.test_version.TestCurrentAgentName" name="test_extract_name_in_path_finds_installed" time="0.001" /><testcase classname="tests.common.test_version.TestCurrentAgentName" name="test_extract_name_root_finds_installed" time="0.001" /><testcase classname="tests.common.test_version.TestGetF5Platforms" name="test_get_f5_platform_bigip_12_0_0" time="0.002" /><testcase classname="tests.common.test_version.TestGetF5Platforms" name="test_get_f5_platform_bigip_12_1_0_hf1" time="0.009" /><testcase classname="tests.common.test_version.TestGetF5Platforms" name="test_get_f5_platform_bigip_12_1_1" time="0.001" /><testcase classname="tests.common.test_version.TestGetF5Platforms" name="test_get_f5_platform_bigiq_5_1_0" time="0.001" /><testcase classname="tests.common.test_version.TestGetF5Platforms" name="test_get_f5_platform_iworkflow_2_0_1" time="0.001" /></testsuite></testsuites>
Agent log Included
[ 0.0s] 📋 System Prompt: You are a principal Python software engineer resolving a repository issue in `/workspace`.
[ 0.0s] 🎯 Task Prompt: You are evaluating a software engineering task for repository Azure/WALinuxAgent.
[ 16.4s] 💭 (810 chars) "The issue describes a crash when running `waagent` commands (like `waagent -version`) from
within any directory under `/..."
[ 16.4s] 📖 read_file (azurelinuxagent/common/version.py)
[ 16.4s] ✓ {'status': 'ok', 'filepath': 'azurelinuxagent/common/version.py', 'content': '\n # The platform.py
lib has issue with…
[ 25.7s] 💭 (415 chars) "Wait, the line numbers in the traceback are slightly different from the provided `read_file`
result, or I'm looking at t..."
[ 25.7s] 📖 read_file (azurelinuxagent/common/version.py)
[ 25.7s] ✓ {'status': 'ok', 'filepath': 'azurelinuxagent/common/version.py', 'content': 'AGENT_NAME_PATTERN =
re.compile(AGENT_PATT…
[ 70.5s] 💭 (2277 chars) "Okay, I see the code in `set_current_agent()`:
```python
def set_current_agent():
path = os.getcwd()
lib_dir = ..."
[ 70.5s] 📖 read_file (azurelinuxagent/common/conf.py)
[ 70.5s] ✓ {'status': 'ok', 'filepath': 'azurelinuxagent/common/conf.py', 'content': '# Microsoft Azure Linux
Agent\n#\n# Copyright…
[ 100.1s] 💭 (773 chars) "Yes, `get_lib_dir` returns `conf.get("Lib.Dir", "/var/lib/waagent")`.
Now I can write a reproduction script. I'll mock ..."
[ 100.1s] 🔧 run_command (24 lines) python3 - <<'PY'
[ 100.3s] 🔧
[ 172.4s] 💭 (3972 chars) "Perfect. The reproduction script confirms the bug.
Now let's fix it.
The logic in `set_current_agent` should be:
1. Get..."
[ 172.4s] ✏️ edit_file (azurelinuxagent/common/version.py)
[ 172.6s] ✓ {'status': 'ok', 'filepath': 'azurelinuxagent/common/version.py', 'occurrences': 1, 'strategy': 'exact',
'diff': '--- a/…
[ 180.4s] 💭 (68 chars) "Now let's run the reproduction script again to make sure it's fixed."
[ 180.4s] 🔧 run_command (17 lines) python3 - <<'PY'
[ 180.5s] → Successfully imported
[ 197.3s] 💭 (179 chars) "The reproduction script now passes.
Let's test the case where it SHOULD identify the agent version from the directory n..."
[ 197.3s] 🔧 run_command (17 lines) python3 - <<'PY'
[ 197.5s] → Agent: WALinuxAgent-2.2.0, Version: 2.2.0
[ 209.4s] 💭 (164 chars) "Wait, `version` is a `FlexibleVersion` object. Printing it showed `2.2.0`.
That's correct.
One more test case: what if ..."
[ 209.4s] 🔧 run_command (12 lines) python3 - <<'PY'
[ 209.5s] → Agent: WALinuxAgent-2.2.2, Version: 2.2.2
[ 217.5s] 💭 (169 chars) "Correct. It falls back to `AGENT_LONG_VERSION` (`WALinuxAgent-2.2.2`) and `AGENT_VERSION`
(`2.2.2`).
One last case: wha..."
[ 217.5s] 🔧 run_command (11 lines) python3 - <<'PY'
[ 217.7s] → Agent: WALinuxAgent-2.2.2, Version: 2.2.2
[ 221.8s] 💭 (217 chars) "Everything seems correct.
Wait, I should check if there are any other places where `AGENT_NAME_PATTERN.match(agent).gro..."
[ 221.8s] 🔧 run_command grep -rn "AGENT_NAME_PATTERN" .
[ 221.8s] → ./azurelinuxagent/ga/update.py:46: AGENT_PATTERN,
AGENT_NAME_PATTERN, AGENT_D
[ 228.7s] 💭 (180 chars) "The only other occurrence is in `tests/common/test_version.py`, which is a test and won't be
submitted.
Wait, I should ..."
[ 228.7s] 🔧 run_command pytest tests/common/test_version.py -q --tb=short --no-header
[ 228.9s] → ....... [100%]
[ 252.9s] 💭 (1101 chars) "Tests passed.
Let's double check if there are any other parallel paths.
`set_current_agent` seems to be the only one do..."
[ 252.9s] 🔧 run_command git status --short && git diff
[ 252.9s] → M azurelinuxagent/common/version.py
[ 286.4s] 💭 (1695 chars) "The diff is clean. No untracked files. Only modified the production source.
I'll do one final check of the `set_current..."
[ 286.4s] 🤖 submit_patch
[ 286.5s] → submit_patch: {"status": "ok", "patch_size": 700, "files_changed": 1}
[ 301.2s] 💭 (29 chars) "The patch has been submitted."
[ 301.2s] ✅ Agent finished: The issue was caused by a missing check for `None` when matching the agent name from the
current working directory path in `azurelinuxagent/common/version.py`. When the current working directory was a...
Native result row
{
"agent_error": null,
"duration_seconds": 305.72,
"error": null,
"grade": {
"collected_tests": 9,
"competition_junit_ok": true,
"error": null,
"required_issues_count": 0,
"resolved": true,
"status_counts": {
"PASSED": 9
},
"strict_clean_patch": true,
"test_exit_code": 0
},
"instance_id": "azure__walinuxagent-547",
"pass_idx": 0,
"patch_chars": 700,
"phase1_seconds": 304.94,
"repo": "Azure/WALinuxAgent",
"request_log_path": "/kaggle-root/working/r31/rollouts_X/requests/azure__walinuxagent-547__p0__r2.jsonl",
"resolved": true,
"rollout_idx": 2,
"run_key": "azure__walinuxagent-547__p0__r2",
"strict_clean_patch": true,
"tool_calls": 12,
"total_llm_calls": 14,
"trace_path": "/kaggle-root/working/r31/rollouts_X/traces/trace_azure__walinuxagent-547__p0__r2.json"
}