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CANP-WP-0006 T03: read API

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Search, versions, manifests, archives and the index, over HTTP.

The route shape is the decision worth recording. Package ids contain `/`, so
the obvious /packages/{id}/{version} is ambiguous under a greedy path
parameter. Rather than invent an HTTP-specific identifier, the routes speak the
format's own <registry>:<id>@<version> syntax and parse it — `:` and `@` are
both legal in a path segment, and each route keeps a distinct prefix so
greediness cannot swallow a neighbouring one. The API therefore exercises
section 3.2's reference notation instead of working around it.

A bare id present in more than one registry returns 409 with the candidates,
never a guess. 409 rather than 300 because the request is answerable once the
caller says which registry they meant. Omitting a version applies section
17.1's selector rules, so a prerelease is never chosen implicitly.

Validation is delegated to reference/, installed into the service environment
rather than reimplemented. One validator means the service and the CLI cannot
disagree about what a valid package is; a service accepting something the CLI
rejects would be the divergence this project exists to prevent. Importing it is
not changing it — reference/ stays the dependency-light conformance witness.

Storage keeps the format's distinctions: an immutable package version, its
files as content rather than parsed rows, and an index entry recording arrival.
Only reserved paths and manifest-referenced files are stored (section 2), and a
re-publish of identical content is accepted while different content under the
same id@version is a conflict (section 17).

Handles a real test-vs-production difference: SQLite autoincrements INTEGER
PRIMARY KEY only, never BIGINT, so the SQLite-backed tests could not insert a
row. BigInteger().with_variant(Integer, "sqlite") keeps BIGINT on PostgreSQL
while letting the tests exercise the same models and migration.

Verified live against a seeded store holding this repo's examples and four
helix-forge prompt packages. Service tests 11 -> 22.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Bjefh8NUiEiahN4JLwoSKM

Assistant: claude-code
Assistant-Model: opus
Assistant-Process: 388925@bnt-lap001
Assistant-Session: 3507023f-e0fd-4a1e-9d90-a0d4217d1502
This commit is contained in:
tegwick 2026-09-06 20:23:25 +02:00
parent d5782d4d04
commit 5f47da8036
15 changed files with 641 additions and 11 deletions
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10
service/migrations/versions/0001_tenant_keyed_package_store.py
View file

@ -11,6 +11,10 @@ Revises:
from alembic import op
import sqlalchemy as sa
# Matches models.BigIntPK: BIGINT on PostgreSQL, INTEGER on SQLite so the
# test database autoincrements the same way production does.
BigIntPK = sa.BigInteger().with_variant(sa.Integer, "sqlite")
revision = '0001'
down_revision = None
branch_labels = None
@ -20,7 +24,7 @@ depends_on = None
def upgrade() -> None:
# ### commands auto generated by Alembic - please adjust! ###
op.create_table('index_entries',
sa.Column('id', sa.BigInteger(), autoincrement=True, nullable=False),
sa.Column('id', BigIntPK, autoincrement=True, nullable=False),
sa.Column('tenant', sa.String(length=64), nullable=False),
sa.Column('registry', sa.String(length=128), nullable=False),
sa.Column('package_id', sa.String(length=512), nullable=False),
@ -36,7 +40,7 @@ def upgrade() -> None:
sa.UniqueConstraint('tenant', 'registry', 'package_id', 'version', name='uq_index_entry')
)
op.create_table('package_versions',
sa.Column('id', sa.BigInteger(), autoincrement=True, nullable=False),
sa.Column('id', BigIntPK, autoincrement=True, nullable=False),
sa.Column('tenant', sa.String(length=64), nullable=False),
sa.Column('registry', sa.String(length=128), nullable=False),
sa.Column('package_id', sa.String(length=512), nullable=False),
@ -54,7 +58,7 @@ def upgrade() -> None:
)
op.create_index('ix_package_versions_tenant_id', 'package_versions', ['tenant', 'package_id'], unique=False)
op.create_table('package_files',
sa.Column('id', sa.BigInteger(), autoincrement=True, nullable=False),
sa.Column('id', BigIntPK, autoincrement=True, nullable=False),
sa.Column('tenant', sa.String(length=64), nullable=False),
sa.Column('package_version_id', sa.BigInteger(), nullable=False),
sa.Column('path', sa.String(length=1024), nullable=False),