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feat(mosaic): durable pre-update snapshot + verify net + restore CLI (#791 PR2)
Third, independent recovery layer for keep-mode upgrades (Part of #791). PR1's
manifest keeps the sync out of operator paths and the ephemeral /tmp snapshot
rolls back a mid-write crash; this adds the case neither covers — a "successful"
upgrade that a manifest/logic bug silently let touch an operator file.

- install.sh make_durable_snapshot(): before any mutation, copy the operator-owned
  surface that exists to $XDG_STATE_HOME/mosaic/backups/pre-update-<UTC-ts>/
  (0700 dirs / 0600 files, umask 077 scoped + restored). Fail-open; retention
  MOSAIC_BACKUP_RETENTION (default 5).
- install.sh verify_operator_surface(): post-sync, restore any operator file the
  upgrade diverged/removed and warn loudly (a divergence = manifest bug). Honors
  intentional migration removals; refuses to restore through a symlink (CWE-59);
  guards mkdir under set -e.
- mosaic restore (TS): --list (default dry-run), --from <ts> confirmation-gated
  restore. Strict timestamp selector (CWE-22), O_NOFOLLOW 0600 writes (CWE-59),
  containment + managed-dir checks via secure-file.ts. Counts/paths only — never
  emits file contents (secrev).
- Gates: typecheck/lint/format ✓; mosaic vitest 1252; restore.spec 30;
  bash gates durable-snapshot 41 / manifest-guard 193 / rollback 28 / migration 21.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
2026-07-16 19:04:14 -05:00

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YAML

# &node_image is the pre-baked CI base built by .woodpecker/ci-image.yml:
# node:24-alpine + python3/make/g++/postgresql-client + pnpm + a warm pnpm
# store. The install step resolves from the baked store (--prefer-offline)
# instead of paying a ~731s cold fetch + native compile every run.
variables:
- &node_image 'git.mosaicstack.dev/mosaicstack/stack/ci-base:latest'
- &enable_pnpm 'corepack enable'
when:
# PR + manual CI run on any branch — the pull_request pipeline is the merge gate.
# push CI is restricted to protected branches (main) so a feature-branch push no
# longer fires a redundant SECOND pipeline alongside its PR pipeline. This ~halves
# CI load on the storage-constrained runner with zero loss of gating (branch
# protection requires no push/ci status context; main still gets full push CI).
- event: [pull_request, manual]
- event: push
branch: main
# Turbo remote cache (turbo.mosaicstack.dev) is configured via Woodpecker
# repository-level environment variables (TURBO_API, TURBO_TEAM, TURBO_TOKEN).
# This avoids from_secret which is blocked on pull_request events.
# If the env vars aren't set, turbo falls back to local cache only.
steps:
install:
image: *node_image
commands:
- corepack enable
# python3/make/g++ are baked into ci-base; --prefer-offline resolves from
# the baked pnpm store.
- pnpm install --frozen-lockfile --prefer-offline
# Blocking gate: public framework package must contain no operator-specific
# personal data or private $HOME defaults. Runs early (no node_modules needed).
sanitization:
image: *node_image
commands:
- apk add --no-cache bash
- bash packages/mosaic/framework/tools/quality/scripts/verify-sanitized.sh
# Resident line-count ceiling over framework-owned resident files
# (Constitution + dispatcher + each RUNTIME.md slice). See DESIGN §7 / R9.
- bash packages/mosaic/framework/tools/quality/scripts/check-resident-budget.sh --self-test
- bash packages/mosaic/framework/tools/quality/scripts/check-resident-budget.sh
# Blocking gate (#791): a framework upgrade must never write or delete an
# operator-owned path. The HARD GATE proves an unanticipated operator sentinel
# survives a keep-mode reseed byte-identical (with rsync present AND absent —
# keep mode is a single cp-based path that must not depend on rsync), and that a
# corrupt/empty/missing manifest aborts fail-closed leaving operator files
# untouched (B2/B3). The rollback gate proves a mid-sync failure is rolled back
# from the pre-update snapshot (B1). The durable-snapshot gate (#791 PR2) proves
# the retained, operator-scoped pre-update backup is taken before any mutation
# (0700/0600, secret never logged, retention-pruned) and that the post-sync
# verify net restores any operator file a manifest bug lets the sync touch. The
# migration matrix pins the v2→v3 contract-file semantics. Pure bash, no
# node_modules — runs early alongside sanitization.
upgrade-guard:
image: *node_image
commands:
- apk add --no-cache bash rsync
- bash packages/mosaic/framework/tools/quality/scripts/test-upgrade-manifest-guard.sh
- bash packages/mosaic/framework/tools/quality/scripts/test-upgrade-rollback.sh
- bash packages/mosaic/framework/tools/quality/scripts/test-upgrade-durable-snapshot.sh
- bash packages/mosaic/framework/tools/quality/scripts/test-install-migration.sh
typecheck:
image: *node_image
commands:
- *enable_pnpm
- pnpm typecheck
depends_on:
- install
- sanitization
- upgrade-guard
# lint, format, and test are independent — run in parallel after typecheck
lint:
image: *node_image
commands:
- *enable_pnpm
- pnpm lint
depends_on:
- typecheck
format:
image: *node_image
commands:
- *enable_pnpm
- pnpm format:check
depends_on:
- typecheck
test:
image: *node_image
environment:
# Avoid the namespace-level Woodpecker DB service named "postgres".
# The Kubernetes backend exposes service containers by step name.
DATABASE_URL: postgresql://mosaic:mosaic@ci-postgres:5432/mosaic
commands:
- *enable_pnpm
# postgresql-client (pg_isready) is baked into ci-base.
# Wait up to 60s for CI postgres to be ready; fail fast if it never comes up.
- |
ready=0
for i in $(seq 1 60); do
if pg_isready -h ci-postgres -p 5432 -U mosaic; then
ready=1
break
fi
echo "Waiting for ci-postgres ($i/60)..."
sleep 1
done
if [ "$ready" -ne 1 ]; then
echo "ci-postgres did not become ready" >&2
exit 1
fi
# Run migrations (DATABASE_URL is set in environment above)
- pnpm --filter @mosaicstack/db run db:migrate
# Run all tests
- pnpm test
depends_on:
- typecheck
services:
ci-postgres:
image: pgvector/pgvector:pg17
environment:
POSTGRES_USER: mosaic
POSTGRES_PASSWORD: mosaic
POSTGRES_DB: mosaic