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perf(runtime): import local sources via single tar put_archive #740

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perf(runtime): import local sources via single tar put_archive #740

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c548c3f
perf(runtime): import local sources via single tar put_archive
pranav-afk Jul 11, 2026
d8d9af1
fix: address greptile review on tar local-source import
pranav-afk Jul 11, 2026
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15 changes: 9 additions & 6 deletions strix/runtime/backends.py
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Original file line number Diff line number Diff line change
Expand Up @@ -31,12 +31,15 @@ async def _docker_backend(
``docker`` lazily so deployments that target a non-Docker
backend don't need the docker-py library installed.

``session.start()`` is what materializes the manifest entries
(LocalDir copies and manifest-declared volume/FUSE mounts) into the
running container — the SDK's ``client.create()`` only builds the inner
session object without applying the manifest. ``async with session:``
would call it too, but Strix manages session lifetime explicitly via
``client.delete()`` so we trigger ``start()`` ourselves.
``session.start()`` materializes any manifest-declared volume/FUSE
mounts into the running container. Local source trees are no longer
carried as SDK ``LocalDir`` entries (that path is per-file and hangs
on large repos); the session manager imports them after ``start()``
via a single tar ``put_archive``. The SDK's ``client.create()`` only
builds the inner session object without applying the manifest.
``async with session:`` would call ``start()`` too, but Strix manages
session lifetime explicitly via ``client.delete()`` so we trigger
``start()`` ourselves.

``bind_mounts`` are host directories (e.g. large repos passed via
``--mount``) bind-mounted read-only; unlike manifest entries they are
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5 changes: 3 additions & 2 deletions strix/runtime/docker_client.py
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Expand Up @@ -117,8 +117,9 @@ async def _create_container(
extra_hosts = create_kwargs.setdefault("extra_hosts", {})
extra_hosts["host.docker.internal"] = "host-gateway"

# Strix injection: host bind mounts (e.g. large repos passed via --mount)
# that bypass the SDK's file-by-file LocalDir copy.
# Strix injection: host bind mounts (e.g. large repos passed via --mount).
# Non-mount local sources are imported after start via tar put_archive
# (session_manager._import_local_sources), not via SDK LocalDir.
bind_mounts = getattr(self, "strix_bind_mounts", ())
if bind_mounts:
mounts = create_kwargs.setdefault("mounts", [])
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