Update backup script: generate private table definitions

Previously the public dump missed the definitions, while the private
dump only contained the data.
We need a 3rd dump that contains the private definitions, in the public
directory so that our db dump is actually usable.

Author: dutow

README.md

@@ -24,6 +24,8 @@ Useful commands:
 * Migrations/seeds: `docker compose -f docker-compose.dev.yml exec web bin/rails db:prepare`
 * Tests: `docker compose -f docker-compose.dev.yml exec web bundle exec rspec`
 * Import a public DB dump: `make db-import DUMP=/path/to/public-YYYY-MM.sql.gz`
+* If you need private table definitions too, apply `private-schema-YYYY-MM.sql.gz` after the import:
+  `gzip -cd /path/to/private-schema-YYYY-MM.sql.gz | docker compose -f docker-compose.dev.yml exec -T db psql`
 
 Makefile shortcuts:
 * `make dev` / `make dev-detach` / `make down`

deploy/README.md

@@ -98,6 +98,7 @@ Access:
 ## Backups (monthly SQL dumps)
 The database dumps are split into public and private data, written to a Docker volume mounted at `/dumps` inside the Postgres container. Each month overwrites the same two files:
 - `public/public-YYYY-MM.sql.gz` (full schema + data, excluding private tables)
+- `public/private-schema-YYYY-MM.sql.gz` (schema-only for private tables)
 - `private/private-YYYY-MM.sql.gz` (data-only for private tables)
 
 The table list lives in `deploy/backup/private_tables.txt` and is used for both dumps.

deploy/backup/run_monthly_dumps.sh

@@ -40,6 +40,9 @@ docker compose -f docker-compose.yml exec -T db bash -lc \
   && pg_dump -U \${POSTGRES_USER:-postgres} -d \${POSTGRES_DB:-hackorum} \
      --format=plain --no-owner --no-privileges${EXCLUDE_ARGS_STR} \
      | gzip -9 > /dumps/public/public-${STAMP}.sql.gz \
+  && pg_dump -U \${POSTGRES_USER:-postgres} -d \${POSTGRES_DB:-hackorum} \
+     --format=plain --schema-only --no-owner --no-privileges${INCLUDE_ARGS_STR} \
+     | gzip -9 > /dumps/public/private-schema-${STAMP}.sql.gz \
   && pg_dump -U \${POSTGRES_USER:-postgres} -d \${POSTGRES_DB:-hackorum} \
      --format=plain --data-only --no-owner --no-privileges${INCLUDE_ARGS_STR} \
      | gzip -9 > /dumps/private/private-${STAMP}.sql.gz"