refs.py
python
sha256:8a1389ae62d0a688d5e027763249bd8faedfc39ab00857d65da6620d1ab8a689
Merge 'feat/9a-4-f7-overseer-provenance' into 'dev' — propo…
Human
3 days ago
| 1 | """On-disk ref I/O for server-side bare repos. |
| 2 | |
| 3 | Every branch pointer is stored as a plain text file at: |
| 4 | |
| 5 | <repo_root>/refs/heads/<branch> |
| 6 | |
| 7 | The file contains the commit ID followed by a single newline. Writes are |
| 8 | atomic on POSIX: a temporary file is written beside the target and then |
| 9 | renamed into place. Readers either get the old value or the new value — |
| 10 | never a torn write. |
| 11 | |
| 12 | Use ``write_ref`` and ``read_ref`` everywhere. Never construct ref paths |
| 13 | inline — use ``muse.core.paths.server_ref_path`` as the single source of truth. |
| 14 | """ |
| 15 | |
| 16 | import pathlib |
| 17 | |
| 18 | from muse.core.paths import server_ref_path, server_heads_dir |
| 19 | |
| 20 | def write_ref(repo_root: pathlib.Path, branch: str, commit_id: str) -> None: |
| 21 | """Write *commit_id* to the on-disk ref for *branch*, atomically. |
| 22 | |
| 23 | Creates ``<repo_root>/refs/heads/`` (and any intermediate directories for |
| 24 | namespaced branches like ``feat/new-melody``) if they do not yet exist. |
| 25 | |
| 26 | The write is atomic: a ``.tmp`` sibling is written first, then |
| 27 | ``os.rename``'d into place. On POSIX this is a single syscall and is |
| 28 | guaranteed to be atomic with respect to concurrent readers. |
| 29 | |
| 30 | Args: |
| 31 | repo_root: Root of the server-side bare repo. |
| 32 | branch: Branch name, e.g. ``"main"`` or ``"feat/new-melody"``. |
| 33 | commit_id: Prefixed SHA-256 commit ID, e.g. ``"sha256:<64-hex>"``. |
| 34 | """ |
| 35 | ref_file = server_ref_path(repo_root, branch) |
| 36 | ref_file.parent.mkdir(parents=True, exist_ok=True) |
| 37 | |
| 38 | tmp_file = ref_file.with_suffix(".tmp") |
| 39 | tmp_file.write_text(f"{commit_id}\n", encoding="utf-8") |
| 40 | tmp_file.rename(ref_file) |
| 41 | |
| 42 | def read_ref(repo_root: pathlib.Path, branch: str) -> str | None: |
| 43 | """Return the commit ID stored in the on-disk ref for *branch*, or ``None``. |
| 44 | |
| 45 | Args: |
| 46 | repo_root: Root of the server-side bare repo. |
| 47 | branch: Branch name, e.g. ``"main"``. |
| 48 | |
| 49 | Returns: |
| 50 | The commit ID string (stripped of the trailing newline), or ``None`` |
| 51 | if no ref file exists for *branch*. |
| 52 | """ |
| 53 | ref_file = server_ref_path(repo_root, branch) |
| 54 | if not ref_file.exists(): |
| 55 | return None |
| 56 | return ref_file.read_text(encoding="utf-8").strip() |
File History
15 commits
sha256:8a1389ae62d0a688d5e027763249bd8faedfc39ab00857d65da6620d1ab8a689
Merge 'feat/9a-4-f7-overseer-provenance' into 'dev' — propo…
Human
3 days ago
sha256:bee12c5cbde2334f98421c6c209d768fa6b8004d6705c9ea798ce6c1651bc11f
Merge 'infra/database-phase3-4-cleanup' into 'dev' — propos…
Human
4 days ago
sha256:fc04e4cae9e1774d6a21b65c45daeed0e6787eb581d13aa1b03bfe9384a34226
Merge branch 'fix/two-column-scroll-layout' into dev
Human
67 days ago
sha256:408916fc5973ba59c6e4eebaa80ebdcc801c0a63205651e25009d11548f79454
chore: bump version to 0.2.0.dev2 — nightly.2, matching muse
Sonnet 4.6
patch
70 days ago
sha256:d035733f21ccff27735fddebfbbe0ed24565a32a22db8de5885402262671ecd2
chore: bump version to 0.2.0rc15 for musehub#113 fix release
Sonnet 4.6
patch
73 days ago
sha256:0032d6cfa33bc3c8367436ad768e7dd0e339b4332153160247da8266cb5fa352
Merge branch 'task/version-tags-phase3-server' into dev
Human
75 days ago
sha256:4669620efda9ff41c55bdefd1f7bfe1c239d468428744c84ead9957e5a003a53
merge: rescue snapshot-recovery hardening (c00aa21d) into d…
Opus 4.8
minor
⚠
88 days ago
sha256:a59da49c4611b970fc4b6ae48678ce4943261c213a07ddbd73ce9201df869b4a
fix: remove false-positive proposal_comments index drop fro…
Sonnet 4.6
patch
92 days ago
sha256:0a240d6dbff234f07d98a28a4a9a68db702f3f9ff9260196f24219bdb1c0b6f3
feat: render markdown mists as HTML with heading anchor links
Sonnet 4.6
patch
93 days ago
sha256:24a7d47486ebc4ebd1832830580e177ec6f877b48dced8c000e198cdec4ce9d6
Merge 'task/bump-version-rc12' into 'dev' — proposal: Bump …
Human
94 days ago
sha256:b9ff931d147e0114a1f17060f415b89ed551c170a91ff226c70437aa5c85f9ee
Merge 'task/bump-version-rc12' into 'dev' — proposal: Bump …
Human
94 days ago
sha256:d1122d21e73471879b460037b22c0b50fded7c423444a176f248428f75dac39c
Merge 'task/fix-issue-pagination-cursor' into 'dev' — propo…
Human
94 days ago
sha256:01e18975e73d2b3cd5b6db7929c895bef9aa6e0d4391dc5b2adfc548b41318dd
Merge 'feat/adding-debug-logs-to-staging' into 'dev' — prop…
Human
94 days ago
sha256:6b1949fc2797ca4c1936a637a4cbfec828ef56cf52398a2e74ca3c4f494e728f
fix: use wire_bytes not mpack_bytes_raw in compute_object_b…
Sonnet 4.6
patch
106 days ago
sha256:b99f2455dc346966d040133f5203297e6e3ef5803a93728a2c30568d0a0f7583
rename: delta_add → delta_upsert across wire format, models…
Sonnet 4.6
patch
108 days ago