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feat(env_vars): add trajectory append mode config #396

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Merged
BCeZn merged 1 commit into from
Feb 3, 2026
Merged

feat(env_vars): add trajectory append mode config #396

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3 changes: 3 additions & 0 deletions rock/env_vars.py
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Original file line number Diff line number Diff line change
Expand Up @@ -43,6 +43,7 @@

# Model Service Config
ROCK_MODEL_SERVICE_DATA_DIR: str
ROCK_MODEL_SERVICE_TRAJ_APPEND_MODE: bool | None = None

# RuntimeEnv
ROCK_RTENV_PYTHON_V31114_INSTALL_CMD: str
Expand Down Expand Up @@ -93,6 +94,8 @@
"ROCK_CLI_DEFAULT_CONFIG_PATH", Path.home() / ".rock" / "config.ini"
),
"ROCK_MODEL_SERVICE_DATA_DIR": lambda: os.getenv("ROCK_MODEL_SERVICE_DATA_DIR", "/data/logs"),
"ROCK_MODEL_SERVICE_TRAJ_APPEND_MODE": lambda: os.getenv("ROCK_MODEL_SERVICE_TRAJ_APPEND_MODE", "false").lower()
== "true",
"ROCK_RTENV_PYTHON_V31114_INSTALL_CMD": lambda: os.getenv(
"ROCK_RTENV_PYTHON_V31114_INSTALL_CMD",
"[ -f cpython31114.tar.gz ] && rm cpython31114.tar.gz; [ -d python ] && rm -rf python; wget -q -O cpython31114.tar.gz https://github.com/astral-sh/python-build-standalone/releases/download/20251120/cpython-3.11.14+20251120-x86_64-unknown-linux-gnu-install_only.tar.gz && tar -xzf cpython31114.tar.gz && mv python runtime-env",
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6 changes: 5 additions & 1 deletion rock/sdk/model/server/utils.py
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Original file line number Diff line number Diff line change
Expand Up @@ -10,9 +10,13 @@

def _write_traj(data: dict):
"""Write traj data to file in JSONL format."""
from rock import env_vars

append = env_vars.ROCK_MODEL_SERVICE_TRAJ_APPEND_MODE
if TRAJ_FILE:
os.makedirs(os.path.dirname(TRAJ_FILE), exist_ok=True)
with open(TRAJ_FILE, "a", encoding="utf-8") as f:
mode = "a" if append else "w"
with open(TRAJ_FILE, mode, encoding="utf-8") as f:
f.write(json.dumps(data, ensure_ascii=False) + "\n")


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