peter
815083bcc4
- The queue keeps a done job by when it became done (ready_at), not by its last write: renaming, keeping or moving an old file, or the GC's expiry warning, no longer brings it back as just finished. - GC expiry and eviction re-read each file under the asset→job locks the user routes take, and commit one file at a time: a delete, a re-download or a keep made while the GC runs is honoured, never a second release that frees a file another user still holds. - A file records the origin it was placed under (download_jobs.source_key, migration 0105): an edit whose parent expired still goes back to its folder, not to Uploads. - A folder a file is being put in is held (FOR SHARE) until it lands; a delete of it waits and takes that file home too, instead of failing on the foreign key. - The hash route reads at most two files at once (429 past that) and holds no connection meanwhile. - 0104's backfill dates old files by their request date only: no notice prod wrote names its job. - The old DOWNLOAD_ROOT still finds the files; a files root that is not a mounted volume stops the worker and is logged by the API; the volume-copy recipe looks the project-prefixed names up. - Stale comments about the /downloads mount and the Downloads page.
38 lines
1.2 KiB
Python
38 lines
1.2 KiB
Python
"""A file remembers where it came from
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Revision ID: 0105_job_source_key
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Revises: 0104_job_ready_at
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Create Date: 2026-10-12
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`download_jobs.source_key` is the origin a file came from — the source folder it may go back to —
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recorded when it is placed. An edit used to work its origin out through its parent each time, and
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once the parent was deleted or expired it fell back to "upload": moved into an own folder, it could
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no longer go back to its folder, and deleting that folder sent it to Uploads to stay forever.
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A file in a source folder takes that folder's key. One already in an own folder is left NULL and
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keeps being worked out (`folders.source_key_for`), as before.
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"""
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import sqlalchemy as sa
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from alembic import op
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revision: str = "0105_job_source_key"
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down_revision: str | None = "0104_job_ready_at"
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branch_labels: str | None = None
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depends_on: str | None = None
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def upgrade() -> None:
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op.add_column("download_jobs", sa.Column("source_key", sa.String(260)))
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op.execute(
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"""
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UPDATE download_jobs j SET source_key = f.source_key
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FROM file_folders f
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WHERE f.id = j.folder_id AND f.kind = 'source'
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"""
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)
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def downgrade() -> None:
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op.drop_column("download_jobs", "source_key")
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