Boots a fresh Postgres via sqlx::test, applies every migration in
order, dumps the resulting public schema (tables, columns with type
+ nullability + default, indexes, constraints, applied migration
manifest), and compares against a checked-in golden text file.
What this catches:
* Someone edits a committed migration — schema diverges from the
snapshot, test fails with a precise diff.
* Someone adds a migration but forgets to update the snapshot —
same divergence; test reminds them.
* Two migrations drift apart in any other way — snapshot is the
source of truth about the post-replay schema.
Update workflow when adding a migration intentionally:
BLESS=1 DATABASE_URL=postgres://... \
cargo test -p picloud-manager-core --test schema_snapshot \
-- --include-ignored
Review the snapshot diff in the same PR. The header comment makes
it clear the file is not for hand-editing.
* Snapshot dump uses information_schema.columns + pg_indexes +
pg_constraint with pg_get_constraintdef. Output is sorted on
every dimension so cosmetic differences (insertion order,
etc.) never cause spurious diffs.
* #[ignore]'d by default for the same reason as the integration
tests — needs DATABASE_URL pointing at a writable Postgres.
* Initial expected_schema.txt blessed from the current
migrations/ contents (3 tables, 9 indexes, 12 constraints).
Wires up enforcement item (4) from docs/versioning.md.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
PiCloud
A lightweight, self-hosted, event-driven serverless compute platform. Upload a Rhai script, get an HTTP endpoint. Designed to run on a single modest server with no idle CPU cost, and to scale out to a small cluster when you need it.
Status: Phase 1 — MVP scaffolding in progress.
The authoritative design lives in
serverless_cloud_blueprint.md.
Why
Existing serverless platforms are either cloud-locked, heavyweight, or both. PiCloud aims for the opposite end of the spectrum: one binary, one database, one reverse proxy — running on hardware you already own.
Architecture (one paragraph)
PiCloud splits into three logical services — manager (control plane: scripts, schedules, dashboard), orchestrator (per-node event ingress and dispatch), and executor (per-node Rhai sandbox) — each backed by a *-core Rust library. In MVP they run in a single process; in cluster mode they run as three binaries with one manager and one orchestrator + executor per node. Caddy fronts everything; PostgreSQL is the single source of truth.
See CLAUDE.md for working notes and serverless_cloud_blueprint.md for the full design.
Quick Start
Coming as scaffolding lands. For now:
# Rust toolchain (pinned via rust-toolchain.toml)
cargo check --workspace
# Run the all-in-one MVP binary (once main.rs is wired up)
cargo run -p picloud
Repository Layout
crates/
shared/ cross-cutting types
executor-core/ Rhai engine + sandbox
orchestrator-core/ event ingress, dispatch
manager-core/ control plane
picloud/ MVP all-in-one binary
picloud-{manager,orchestrator,executor}/ cluster-mode binaries (skeleton)
dashboard/ SvelteKit
caddy/ Caddyfile
docker/ Dockerfiles
docs/
git-workflow.md Trunk-based workflow
Contributing
See docs/git-workflow.md for the branching and commit conventions. TL;DR: trunk-based, short-lived branches, Conventional Commits, no force-pushing main.
License
TBD.