Harden agent runner tool runtimes (#2247)

* fix(tools): harden agent runner tool runtimes

* fix(tools): bootstrap Python workspaces with available interpreter

* fix(tools): clear stale Python workspace env locks

* fix(tools): decouple runtime from agent runner

* test(tools): cover runtime hardening edge cases

* fix(tools): support binary workspace file chunks
This commit is contained in:
huanghuoguoguo
2026-06-18 14:06:04 +00:00
committed by GitHub
parent 3a2edf9753
commit a020ca680f
10 changed files with 1008 additions and 169 deletions
+20 -3
View File
@@ -146,13 +146,19 @@ def wrap_python_command_with_env(command: str, *, mount_path: str = '/workspace'
_LB_PIP_CACHE_DIR="{mount_path}/.cache/pip"
mkdir -p "$_LB_META_DIR" "$_LB_TMP_DIR" "$_LB_PIP_CACHE_DIR"
_LB_SYSTEM_PYTHON="$(command -v python3 || command -v python || true)"
if [ -z "$_LB_SYSTEM_PYTHON" ]; then
echo "python3 or python is required to prepare the workspace Python environment" >&2
exit 127
fi
export TMPDIR="$_LB_TMP_DIR"
export TEMP="$_LB_TMP_DIR"
export TMP="$_LB_TMP_DIR"
export PIP_CACHE_DIR="$_LB_PIP_CACHE_DIR"
_lb_python_meta() {{
python - <<'PY'
"$_LB_SYSTEM_PYTHON" - <<'PY'
import hashlib
import json
import os
@@ -201,15 +207,26 @@ def wrap_python_command_with_env(command: str, *, mount_path: str = '/workspace'
_LB_LOCK_WAIT=0
while ! mkdir "$_LB_LOCK_DIR" 2>/dev/null; do
if [ "$_LB_LOCK_WAIT" -ge 120 ]; then
_LB_LOCK_OWNER="$(cat "$_LB_LOCK_DIR/pid" 2>/dev/null || true)"
if [ -n "$_LB_LOCK_OWNER" ] && kill -0 "$_LB_LOCK_OWNER" 2>/dev/null; then
echo "Timed out waiting for active Python environment lock: $_LB_LOCK_DIR" >&2
exit 1
fi
echo "Timed out waiting for Python environment lock, clearing stale lock: $_LB_LOCK_DIR" >&2
rm -rf "$_LB_LOCK_DIR" 2>/dev/null || true
if mkdir "$_LB_LOCK_DIR" 2>/dev/null; then
break
fi
echo "Timed out waiting for Python environment lock: $_LB_LOCK_DIR" >&2
exit 1
fi
sleep 1
_LB_LOCK_WAIT=$((_LB_LOCK_WAIT + 1))
done
printf '%s\\n' "$$" > "$_LB_LOCK_DIR/pid" 2>/dev/null || true
_lb_cleanup_lock() {{
rmdir "$_LB_LOCK_DIR" >/dev/null 2>&1 || true
rm -rf "$_LB_LOCK_DIR" >/dev/null 2>&1 || true
}}
trap _lb_cleanup_lock EXIT INT TERM
@@ -225,7 +242,7 @@ def wrap_python_command_with_env(command: str, *, mount_path: str = '/workspace'
if [ "$_LB_NEEDS_BOOTSTRAP" -eq 1 ]; then
rm -rf "$_LB_VENV_DIR"
python -m venv "$_LB_VENV_DIR"
"$_LB_SYSTEM_PYTHON" -m venv "$_LB_VENV_DIR"
. "$_LB_VENV_DIR/bin/activate"
python -m pip install --upgrade pip setuptools wheel
if [ -f "{mount_path}/requirements.txt" ]; then