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authorAspen Smith <root@gws.fyi>2024-03-24T14·32-0400
committeraspen <root@gws.fyi>2024-03-31T19·22+0000
commita1a29f7c0b5746aa5676e546b8ebae7518d9070b (patch)
treef2343087d8d8b87f622c24115907a4bf7407c177 /fun/owothia
parentd5f57ac6e68f3acd79f1abc91d8ee9afc435018f (diff)
feat(web/panettone): Add a system for database migrations r/7826
Add a system for writing, running, and tracking database
migrations (changes to the database schema) over time, inspired by but
significantly simpler than postmodern-passenger-pigeon.

Migrations can be generated by
running (PANETTONE.MODEL:GENERATE-MIGRATION "name"), and are numerically
ordered lisp files that define (at least) a function called UP, which
runs the migration. The migrations that have been run against the
database are tracked in the `migrations` table, and when the
`(PANETTONE.MODEL:MIGRATE)` function is called (as it is on startup),
all migrations that have not yet been run are run within a transaction.

This includes one migration `1-init-schema.lisp`, which migrates the
database (idempotently) to the current state of the schema.

Change-Id: Id243a47763abea649784b12f25a6d05c2267381c
Reviewed-on: https://cl.tvl.fyi/c/depot/+/11253
Tested-by: BuildkiteCI
Reviewed-by: sterni <sternenseemann@systemli.org>
Diffstat (limited to 'fun/owothia')
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