gabriel / muse public
perf BREAKING dev
AI Agent gabriel · 121 days ago · May 11, 2026 · Diff

perf: delta+zlib compress objects on bundle push path

build_mpack_from_walk(compress=True) walks snapshot_deltas in order, emitting each object as: - delta+zlib against immediate predecessor (same path, prior commit) - zlib if no predecessor or delta is larger than zlib - raw only when zlib makes it larger

Objects are emitted in dependency order so the server can reconstruct by reading base_id before delta. For incremental text changes, delta+zlib reduces payload to a tiny diff — expected 70-90% wire size reduction for a typical code repo.

sha256:503bf12e2e99e0c932dd4cc79e5fd492c58e65d35b3dea568df3f60efb79b586 sha
sha256:6e7658c7c77804792a4929f7f69f254db175f53c56cbea3fb370f2c9f1cea38c parent
+26 ~2 symbols
sha256:67b120b4781cce8d4c5ffe1ee2246ccd99e64c2126acbd17705cdfdeab48c05d snapshot
+26
symbols added
~2
symbols modified
0
dead code introduced
Semantic Changes 28 symbols
~ tests/test_bundle_object_compression.py .py 25 symbols added
+ _BLOB_SIZE variable variable _BLOB_SIZE L49–49
+ _FILES_CHANGED variable variable _FILES_CHANGED L48–48
+ _N_COMMITS variable variable _N_COMMITS L47–47
+ _N_FILES variable variable _N_FILES L46–46
+ _make_repo function function _make_repo L56–130
+ CommitRecord import import CommitRecord L32–32
+ SnapshotRecord import import SnapshotRecord L32–32
+ annotations import import annotations L19–19
+ apply_delta import import apply_delta L27–27
+ blob_id import import blob_id L39–39
+ build_mpack_from_walk import import build_mpack_from_walk L29–29
+ compute_commit_id import import compute_commit_id L31–31
+ compute_snapshot_id import import compute_snapshot_id L31–31
+ datetime import import datetime L21–21
+ muse_dir import import muse_dir L30–30
+ pathlib import import pathlib L22–22
+ pytest import import pytest L25–25
+ walk_commits import import walk_commits L29–29
+ write_branch_ref import import write_branch_ref L32–32
+ write_commit import import write_commit L32–32
+ write_object import import write_object L28–28
+ write_snapshot import import write_snapshot L32–32
+ zlib import import zlib L23–23
+ test_bundle_compressed_objects_reconstructable function function test_bundle_compressed_objects_reconstructable L162–195
+ test_bundle_compression_reduces_wire_size function function test_bundle_compression_reduces_wire_size L137–159
~ muse/cli/commands/push.py .py 1 symbol modified
~ _push_stream
~ muse/core/pack.py .py 1 symbol added, 1 symbol modified
+ zlib import import zlib L36–36
~ build_mpack_from_walk
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