🚚 Migrating from Misskey/FoundKey/Firefish to Iceshrimp

All the guides below assume you're starting in the root of the repo directory.

Before proceeding

Ensure you have stopped all master and worker processes of Misskey.
Ensure you have backups of the database before performing any commands.

Misskey v12.119 and before

git remote set-url origin https://iceshrimp.dev/iceshrimp/iceshrimp.git
git fetch
git checkout v2023.11.4 # or any other tag or dev

# build and run migrations using preferred method

Note

Migrating from Misskey v13 and its forks (Sharkey et al) is unsupported due to database schema changes.

FoundKey

wget -O fk.patch https://iceshrimp.dev/iceshrimp/iceshrimp/raw/branch/dev/docs/fk.patch
git apply fk.patch
cd packages/backend

Run npx typeorm migration:revert -d ormconfig.js for every migration until you see that uniformThemecolor1652859567549 has been reverted. Command will not terminate properly after reverting, so you'll have to Ctrl-C

git remote set-url origin https://iceshrimp.dev/iceshrimp/iceshrimp.git
git fetch
git checkout v2023.11.4 # or any other tag or dev

# build and migrate using preferred method

Firefish

Run docker exec -it firefish_web /bin/sh if using docker, before doing reverts.

Go to packages/backend, revert migrations manually using pnpm run revertmigration:typeorm for every migration, until FirefishRepo1689957674000 has been reverted. Command will not terminate properly after reverting, so you'll have to Ctrl-C.

If you are migrating from versions newer than 1.0.3, you'll also have to run pnpm run revertmigration:cargo for every migration, until m20230806_170616_fix_antenna_stream_ids has been reverted.

Build and run migrations using your preferred method.

Troubleshooting

If migration IncreaseHostCharLimit1692374635734 failed to revert, please run DELETE FROM "migrations" WHERE "name" = 'IncreaseHostCharLimit1692374635734';

Reverse

You cannot migrate back to Misskey from Iceshrimp due to re-hashing passwords on signin with argon2, however theoretically you should be able to migrate from Iceshrimp to Firefish. You can migrate from Iceshrimp to FoundKey, although this is not recommended due to FoundKey being end-of-life, and may have some problems with alt-text.

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