more updates

README.md

@@ -130,9 +130,13 @@ The following libraries and frameworks are used by GoToSocial, with gratitude
 * [go-fed/activity](https://github.com/go-fed/activity); Golang ActivityPub/ActivityStreams library. [BSD-3-Clause License](https://spdx.org/licenses/BSD-3-Clause.html).
 * [go-fed/httpsig](https://github.com/go-fed/httpsig); secure HTTP signature library. [BSD-3-Clause License](https://spdx.org/licenses/BSD-3-Clause.html).
 * [google/uuid](https://github.com/google/uuid); UUID generation. [BSD-3-Clause License](https://spdx.org/licenses/BSD-3-Clause.html)
+* [go-playground/validator](https://github.com/go-playground/validator); struct validation. [MIT License](https://spdx.org/licenses/MIT.html)
 * [gorilla/websocket](https://github.com/gorilla/websocket); Websocket connectivity. [BSD-2-Clause License](https://spdx.org/licenses/BSD-2-Clause.html).
 * [h2non/filetype](https://github.com/h2non/filetype); filetype checking. [MIT License](https://spdx.org/licenses/MIT.html).
 * [jackc/pgx](https://github.com/jackc/pgx); Postgres driver. [MIT License](https://spdx.org/licenses/MIT.html).
+* [modernc.org/sqlite](https://gitlab.com/cznic/sqlite); cgo-free port of SQLite. [Other License](https://gitlab.com/cznic/sqlite/-/blob/master/LICENSE).
+  * [modernc.org/ccgo](https://gitlab.com/cznic/ccgo); c99 AST -> Go translater. [BSD-3-Clause License](https://spdx.org/licenses/BSD-3-Clause.html).
+  * [modernc.org/libc](https://gitlab.com/cznic/libc); C-runtime services. [BSD-3-Clause License](https://spdx.org/licenses/BSD-3-Clause.html).
 * [microcosm-cc/bluemonday](https://github.com/microcosm-cc/bluemonday); HTML user-input sanitization. [BSD-3-Clause License](https://spdx.org/licenses/BSD-3-Clause.html).
 * [mvdan/xurls](https://github.com/mvdan/xurls); URL parsing regular expressions. [BSD-3-Clause License](https://spdx.org/licenses/BSD-3-Clause.html).
 * [nfnt/resize](https://github.com/nfnt/resize); convenient image resizing. [ISC License](https://spdx.org/licenses/ISC.html).
@@ -146,11 +150,9 @@ The following libraries and frameworks are used by GoToSocial, with gratitude
 * [go-swagger/go-swagger](https://github.com/go-swagger/go-swagger); Swagger OpenAPI spec generation. [Apache-2.0 License](https://spdx.org/licenses/Apache-2.0.html).
 * [tdewolff/minify](https://github.com/tdewolff/minify); HTML minification. [MIT License](https://spdx.org/licenses/MIT.html).
 * [uptrace/bun](https://github.com/uptrace/bun); database ORM. [BSD-2-Clause License](https://spdx.org/licenses/BSD-2-Clause.html).
+  *
 * [urfave/cli](https://github.com/urfave/cli); command-line interface framework. [MIT License](https://spdx.org/licenses/MIT.html).
 * [wagslane/go-password-validator](https://github.com/wagslane/go-password-validator); password strength validation. [MIT License](https://spdx.org/licenses/MIT.html).
-* [modernc.org/sqlite](sqlite); cgo-free port of SQLite. [Other License](https://gitlab.com/cznic/sqlite/-/blob/master/LICENSE).
-  * [modernc.org/ccgo](ccgo); c99 AST -> Go translater. [BSD-3-Clause License](https://spdx.org/licenses/BSD-3-Clause.html).
-  * [modernc.org/libc](libc); C-runtime services. [BSD-3-Clause License](https://spdx.org/licenses/BSD-3-Clause.html).
 
 ### Image Attribution
 

go.mod

@@ -21,7 +21,7 @@ require (
 	github.com/go-errors/errors v1.4.0 // indirect
 	github.com/go-fed/activity v1.0.1-0.20210803212804-d866ba75dd0f
 	github.com/go-fed/httpsig v1.1.0
-	github.com/go-playground/validator/v10 v10.7.0 // indirect
+	github.com/go-playground/validator/v10 v10.7.0
 	github.com/golang/geo v0.0.0-20210211234256-740aa86cb551 // indirect
 	github.com/golang/mock v1.6.0 // indirect
 	github.com/golang/protobuf v1.5.2 // indirect

internal/db/bundb/bundb.go

@@ -37,11 +37,13 @@
 	"github.com/superseriousbusiness/gotosocial/internal/cache"
 	"github.com/superseriousbusiness/gotosocial/internal/config"
 	"github.com/superseriousbusiness/gotosocial/internal/db"
+	"github.com/superseriousbusiness/gotosocial/internal/db/bundb/migrations"
 	"github.com/superseriousbusiness/gotosocial/internal/gtsmodel"
 	"github.com/superseriousbusiness/gotosocial/internal/id"
 	"github.com/uptrace/bun"
 	"github.com/uptrace/bun/dialect/pgdialect"
 	"github.com/uptrace/bun/dialect/sqlitedialect"
+	"github.com/uptrace/bun/migrate"
 	_ "modernc.org/sqlite"
 )
 
@@ -73,6 +75,29 @@ type bunDBService struct {
 	conn   *DBConn
 }
 
+func doMigration(ctx context.Context, db *bun.DB, log *logrus.Logger) error {
+	l := log.WithField("func", "doMigration")
+
+	migrator := migrate.NewMigrator(db, migrations.Migrations)
+
+	if err := migrator.Init(ctx); err != nil {
+		return err
+	}
+
+	group, err := migrator.Migrate(ctx)
+	if err != nil {
+		return err
+	}
+
+	if group.ID == 0 {
+		l.Info("there are no new migrations to run")
+		return nil
+	}
+
+	l.Infof("MIGRATED DATABASE TO %s", group)
+	return nil
+}
+
 // NewBunDBService returns a bunDB derived from the provided config, which implements the go-fed DB interface.
 // Under the hood, it uses https://github.com/uptrace/bun to create and maintain a database connection.
 func NewBunDBService(ctx context.Context, c *config.Config, log *logrus.Logger) (db.DB, error) {
@@ -131,6 +156,9 @@ func NewBunDBService(ctx context.Context, c *config.Config, log *logrus.Logger)
 	}
 
 	accounts := &accountDB{config: c, conn: conn, cache: cache.NewAccountCache()}
+	if err := doMigration(ctx, conn.DB, log); err != nil {
+		return nil, fmt.Errorf("db migration error: %s", err)
+	}
 
 	ps := &bunDBService{
 		Account: accounts,

internal/db/bundb/migrations/20210816411877_struct_validation.go

@@ -0,0 +1,54 @@
+/*
+   GoToSocial
+   Copyright (C) 2021 GoToSocial Authors admin@gotosocial.org
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU Affero General Public License as published by
+   the Free Software Foundation, either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU Affero General Public License for more details.
+
+   You should have received a copy of the GNU Affero General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+package migrations
+
+import (
+	"context"
+
+	"github.com/superseriousbusiness/gotosocial/internal/gtsmodel"
+	"github.com/uptrace/bun"
+)
+
+func init() {
+	up := func(ctx context.Context, db *bun.DB) error {
+		return db.RunInTx(ctx, nil, func(ctx context.Context, tx bun.Tx) error {
+			_, err := tx.NewCreateTable().Model(&gtsmodel.Account{}).IfNotExists().Exec(ctx)
+			if err != nil {
+				return err
+			}
+
+			return nil
+		})
+	}
+
+	down := func(ctx context.Context, db *bun.DB) error {
+		return db.RunInTx(ctx, nil, func(ctx context.Context, tx bun.Tx) error {
+			_, err := tx.NewDropTable().Model(&gtsmodel.Account{}).Exec(ctx)
+			if err != nil {
+				return err
+			}
+
+			return nil
+		})
+	}
+
+	if err := Migrations.Register(up, down); err != nil {
+		panic(err)
+	}
+}

internal/db/bundb/migrations/README.md

@@ -0,0 +1,21 @@
+# Migrations
+
+## How do I write a migration file?
+
+[See here](https://bun.uptrace.dev/guide/migrations.html#migration-names)
+
+As a template, take one of the existing migration files and modify it. It will be automatically loaded and handled by Bun.
+
+## File format
+
+Bun requires a very specific format: 14 digits, then letters or underscores.
+
+You can use the following bash command on your branch to generate a suitable migration filename.
+
+```bash
+echo "$(date --utc +%Y%m%H%M%S%N | head -c 14)_$(git rev-parse --abbrev-ref HEAD).go"
+```
+
+## Rules of thumb
+
+1. **DON'T DROP TABLES**!!!!!!!!

internal/db/bundb/migrations/main.go

@@ -0,0 +1,28 @@
+/*
+   GoToSocial
+   Copyright (C) 2021 GoToSocial Authors admin@gotosocial.org
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU Affero General Public License as published by
+   the Free Software Foundation, either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU Affero General Public License for more details.
+
+   You should have received a copy of the GNU Affero General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+package migrations
+
+import (
+	"github.com/uptrace/bun/migrate"
+)
+
+var (
+	// Migrations provides migration logic for bun
+	Migrations = migrate.NewMigrations()
+)

internal/gtsmodel/account.go

@@ -27,124 +27,56 @@
 	"time"
 )
 
-// Account represents either a local or a remote fediverse account, gotosocial or otherwise (mastodon, pleroma, etc)
+// Account represents either a local or a remote fediverse account, gotosocial or otherwise (mastodon, pleroma, etc).
 type Account struct {
-	/*
-		BASIC INFO
-	*/
-
-	// id of this account in the local database
-	ID string `bun:"type:CHAR(26),pk,nullzero,notnull,unique"`
-	// Username of the account, should just be a string of [a-z0-9_]. Can be added to domain to create the full username in the form ``[username]@[domain]`` eg., ``user_96@example.org``
-	Username string `bun:",notnull,unique:userdomain,nullzero"` // username and domain should be unique *with* each other
-	// Domain of the account, will be null if this is a local account, otherwise something like ``example.org`` or ``mastodon.social``. Should be unique with username.
-	Domain string `bun:",unique:userdomain,nullzero"` // username and domain should be unique *with* each other
-
-	/*
-		ACCOUNT METADATA
-	*/
-
-	// ID of the avatar as a media attachment
-	AvatarMediaAttachmentID string           `bun:"type:CHAR(26),nullzero"`
-	AvatarMediaAttachment   *MediaAttachment `bun:"rel:belongs-to"`
-	// For a non-local account, where can the header be fetched?
-	AvatarRemoteURL string `bun:",nullzero"`
-	// ID of the header as a media attachment
-	HeaderMediaAttachmentID string           `bun:"type:CHAR(26),nullzero"`
-	HeaderMediaAttachment   *MediaAttachment `bun:"rel:belongs-to"`
-	// For a non-local account, where can the header be fetched?
-	HeaderRemoteURL string `bun:",nullzero"`
-	// DisplayName for this account. Can be empty, then just the Username will be used for display purposes.
-	DisplayName string `bun:",nullzero"`
-	// a key/value map of fields that this account has added to their profile
-	Fields []Field
-	// A note that this account has on their profile (ie., the account's bio/description of themselves)
-	Note string `bun:",nullzero"`
-	// Is this a memorial account, ie., has the user passed away?
-	Memorial bool `bun:",nullzero"`
-	// This account has moved this account id in the database
-	MovedToAccountID string `bun:"type:CHAR(26),nullzero"`
-	// When was this account created?
-	CreatedAt time.Time `bun:",nullzero,notnull,default:current_timestamp"`
-	// When was this account last updated?
-	UpdatedAt time.Time `bun:",nullzero,notnull,default:current_timestamp"`
-	// Does this account identify itself as a bot?
-	Bot bool
-	// What reason was given for signing up when this account was created?
-	Reason string `bun:",nullzero"`
-
-	/*
-		USER AND PRIVACY PREFERENCES
-	*/
-
-	// Does this account need an approval for new followers?
-	Locked bool `bun:",default:true"`
-	// Should this account be shown in the instance's profile directory?
-	Discoverable bool `bun:",default:false"`
-	// Default post privacy for this account
-	Privacy Visibility `bun:",default:'public'"`
-	// Set posts from this account to sensitive by default?
-	Sensitive bool `bun:",default:false"`
-	// What language does this account post in?
-	Language string `bun:",default:'en'"`
-
-	/*
-		ACTIVITYPUB THINGS
-	*/
-
-	// What is the activitypub URI for this account discovered by webfinger?
-	URI string `bun:",unique,nullzero"`
-	// At which URL can we see the user account in a web browser?
-	URL string `bun:",unique,nullzero"`
-	// Last time this account was located using the webfinger API.
-	LastWebfingeredAt time.Time `bun:",nullzero"`
-	// Address of this account's activitypub inbox, for sending activity to
-	InboxURI string `bun:",unique,nullzero"`
-	// Address of this account's activitypub outbox
-	OutboxURI string `bun:",unique,nullzero"`
-	// URI for getting the following list of this account
-	FollowingURI string `bun:",unique,nullzero"`
-	// URI for getting the followers list of this account
-	FollowersURI string `bun:",unique,nullzero"`
-	// URL for getting the featured collection list of this account
-	FeaturedCollectionURI string `bun:",unique,nullzero"`
-	// What type of activitypub actor is this account?
-	ActorType string `bun:",nullzero"`
-	// This account is associated with x account id
-	AlsoKnownAs string `bun:",nullzero"`
-
-	/*
-		CRYPTO FIELDS
-	*/
-
-	// Privatekey for validating activitypub requests, will only be defined for local accounts
-	PrivateKey *rsa.PrivateKey
-	// Publickey for encoding activitypub requests, will be defined for both local and remote accounts
-	PublicKey *rsa.PublicKey
-	// Web-reachable location of this account's public key
-	PublicKeyURI string `bun:",nullzero"`
-
-	/*
-		ADMIN FIELDS
-	*/
-
-	// When was this account set to have all its media shown as sensitive?
-	SensitizedAt time.Time `bun:",nullzero"`
-	// When was this account silenced (eg., statuses only visible to followers, not public)?
-	SilencedAt time.Time `bun:",nullzero"`
-	// When was this account suspended (eg., don't allow it to log in/post, don't accept media/posts from this account)
-	SuspendedAt time.Time `bun:",nullzero"`
-	// Should we hide this account's collections?
-	HideCollections bool
-	// id of the database entry that caused this account to become suspended -- can be an account ID or a domain block ID
-	SuspensionOrigin string `bun:"type:CHAR(26),nullzero"`
+	ID                      string           `validate:"required,ulid" bun:"type:CHAR(26),pk,nullzero,notnull,unique"`                                      // id of this item in the database
+	CreatedAt               time.Time        `validate:"-" bun:",nullzero,notnull,default:current_timestamp"`                                               // when was item created
+	UpdatedAt               time.Time        `validate:"-" bun:",nullzero,notnull,default:current_timestamp"`                                               // when was item last updated
+	Username                string           `validate:"required" bun:",nullzero,notnull,unique:userdomain"`                                                // Username of the account, should just be a string of [a-zA-Z0-9_]. Can be added to domain to create the full username in the form ``[username]@[domain]`` eg., ``user_96@example.org``. Username and domain should be unique *with* each other
+	Domain                  string           `validate:"omitempty,fqdn" bun:",nullzero,unique:userdomain"`                                                  // Domain of the account, will be null if this is a local account, otherwise something like ``example.org`` or ``mastodon.social``. Should be unique with username.
+	AvatarMediaAttachmentID string           `validate:"omitempty,ulid" bun:"type:CHAR(26),nullzero"`                                                       // Database ID of the media attachment, if present
+	AvatarMediaAttachment   *MediaAttachment `validate:"-" bun:"rel:belongs-to"`                                                                            // MediaAttachment corresponding to avatarMediaAttachmentID
+	AvatarRemoteURL         string           `validate:"omitempty,url" bun:",nullzero"`                                                                     // For a non-local account, where can the header be fetched?
+	HeaderMediaAttachmentID string           `validate:"omitempty,ulid" bun:"type:CHAR(26),nullzero"`                                                       // Database ID of the media attachment, if present
+	HeaderMediaAttachment   *MediaAttachment `validate:"-" bun:"rel:belongs-to"`                                                                            // MediaAttachment corresponding to headerMediaAttachmentID
+	HeaderRemoteURL         string           `validate:"omitempty,url" bun:",nullzero"`                                                                     // For a non-local account, where can the header be fetched?
+	DisplayName             string           `validate:"-" bun:",nullzero"`                                                                                 // DisplayName for this account. Can be empty, then just the Username will be used for display purposes.
+	Fields                  []Field          `validate:"-"`                                                                                                 // a key/value map of fields that this account has added to their profile
+	Note                    string           `validate:"-" bun:",nullzero"`                                                                                 // A note that this account has on their profile (ie., the account's bio/description of themselves)
+	Memorial                bool             `validate:"-" bun:",nullzero,default:false"`                                                                   // Is this a memorial account, ie., has the user passed away?
+	AlsoKnownAs             string           `validate:"omitempty,ulid" bun:"type:CHAR(26),nullzero"`                                                       // This account is associated with x account id
+	MovedToAccountID        string           `validate:"omitempty,ulid" bun:"type:CHAR(26),nullzero"`                                                       // This account has moved this account id in the database
+	Bot                     bool             `validate:"-" bun:",nullzero,default:false"`                                                                   // Does this account identify itself as a bot?
+	Reason                  string           `validate:"-" bun:",nullzero"`                                                                                 // What reason was given for signing up when this account was created?
+	Locked                  bool             `validate:"-" bun:",nullzero,default:true"`                                                                    // Does this account need an approval for new followers?
+	Discoverable            bool             `validate:"-" bun:",nullzero,default:false"`                                                                   // Should this account be shown in the instance's profile directory?
+	Privacy                 Visibility       `validate:"oneof=public unlocked followers_only mutuals_only direct" bun:",nullzero,notnull,default:'public'"` // Default post privacy for this account
+	Sensitive               bool             `validate:"-" bun:",nullzero,default:false"`                                                                   // Set posts from this account to sensitive by default?
+	Language                string           `validate:"-" bun:",nullzero,notnull,default:'en'"`                                                            // What language does this account post in?
+	URI                     string           `validate:"required,url" bun:",nullzero,notnull,unique"`                                                       // ActivityPub URI for this account.
+	URL                     string           `validate:"omitempty,url" bun:",unique,nullzero"`                                                              // Web URL for this account's profile
+	LastWebfingeredAt       time.Time        `validate:"-" bun:",nullzero,notnull,default:current_timestamp"`                                               // Last time this account was refreshed/located with webfinger.
+	InboxURI                string           `validate:"omitempty,url" bun:",nullzero,unique"`                                                              // Address of this account's ActivityPub inbox, for sending activity to
+	OutboxURI               string           `validate:"omitempty,url" bun:",nullzero,unique"`                                                              // Address of this account's activitypub outbox
+	FollowingURI            string           `validate:"omitempty,url" bun:",nullzero,unique"`                                                              // URI for getting the following list of this account
+	FollowersURI            string           `validate:"omitempty,url" bun:",nullzero,unique"`                                                              // URI for getting the followers list of this account
+	FeaturedCollectionURI   string           `validate:"omitempty,url" bun:",nullzero,unique"`                                                              // URL for getting the featured collection list of this account
+	ActorType               string           `validate:"oneof=Application Group Organization Person Service " bun:",nullzero,notnull"`                      // What type of activitypub actor is this account?
+	PrivateKey              *rsa.PrivateKey  `validate:"required_without=Domain"`                                                                           // Privatekey for validating activitypub requests, will only be defined for local accounts
+	PublicKey               *rsa.PublicKey   `validate:"required"`                                                                                          // Publickey for encoding activitypub requests, will be defined for both local and remote accounts
+	PublicKeyURI            string           `validate:"required" bun:",nullzero,notnull"`                                                                  // Web-reachable location of this account's public key
+	SensitizedAt            time.Time        `validate:"-" bun:",nullzero"`                                                                                 // When was this account set to have all its media shown as sensitive?
+	SilencedAt              time.Time        `validate:"-" bun:",nullzero"`                                                                                 // When was this account silenced (eg., statuses only visible to followers, not public)?
+	SuspendedAt             time.Time        `validate:"-" bun:",nullzero"`                                                                                 // When was this account suspended (eg., don't allow it to log in/post, don't accept media/posts from this account)
+	HideCollections         bool             `validate:"-" bun:",nullzero,default:false"`                                                                   // Hide this account's collections
+	SuspensionOrigin        string           `validate:"omitempty,ulid" bun:"type:CHAR(26),nullzero"`                                                       // id of the database entry that caused this account to become suspended -- can be an account ID or a domain block ID
 }
 
 // Field represents a key value field on an account, for things like pronouns, website, etc.
 // VerifiedAt is optional, to be used only if Value is a URL to a webpage that contains the
 // username of the user.
 type Field struct {
-	Name       string
-	Value      string
-	VerifiedAt time.Time `bun:",nullzero"`
+	Name       string    `validate:"required"`          // Name of this field.
+	Value      string    `validate:"required"`          // Value of this field.
+	VerifiedAt time.Time `validate:"-" bun:",nullzero"` // This field was verified at (optional).
 }

internal/gtsmodel/block.go

@@ -4,12 +4,12 @@
 
 // Block refers to the blocking of one account by another.
 type Block struct {
-	ID              string    `validate:"required,ulid" bun:"type:CHAR(26),pk,nullzero,notnull,unique"` // id of this item in the database
-	CreatedAt       time.Time `validate:"-" bun:",nullzero,notnull,default:current_timestamp"`          // when was item created
-	UpdatedAt       time.Time `validate:"-" bun:",nullzero,notnull,default:current_timestamp"`          // when was item last updated
-	URI             string    `validate:"required,url" bun:",notnull,nullzero,unique"`                  // ActivityPub uri of this block.
-	AccountID       string    `validate:"required,ulid" bun:"type:CHAR(26),unique:frsrctarget,notnull"` // Who does this block originate from?
-	Account         *Account  `validate:"-" bun:"rel:belongs-to"`                                       // Account corresponding to accountID
-	TargetAccountID string    `validate:"required,ulid" bun:"type:CHAR(26),unique:frsrctarget,notnull"` // Who is the target of this block ?
-	TargetAccount   *Account  `validate:"-" bun:"rel:belongs-to"`                                       // Account corresponding to targetAccountID
+	ID              string    `validate:"required,ulid" bun:"type:CHAR(26),pk,nullzero,notnull,unique"`    // id of this item in the database
+	CreatedAt       time.Time `validate:"-" bun:",nullzero,notnull,default:current_timestamp"`             // when was item created
+	UpdatedAt       time.Time `validate:"-" bun:",nullzero,notnull,default:current_timestamp"`             // when was item last updated
+	URI             string    `validate:"required,url" bun:",notnull,nullzero,unique"`                     // ActivityPub uri of this block.
+	AccountID       string    `validate:"required,ulid" bun:"type:CHAR(26),unique:blocksrctarget,notnull"` // Who does this block originate from?
+	Account         *Account  `validate:"-" bun:"rel:belongs-to"`                                          // Account corresponding to accountID
+	TargetAccountID string    `validate:"required,ulid" bun:"type:CHAR(26),unique:blocksrctarget,notnull"` // Who is the target of this block ?
+	TargetAccount   *Account  `validate:"-" bun:"rel:belongs-to"`                                          // Account corresponding to targetAccountID
 }

internal/gtsmodel/block_test.go

@@ -0,0 +1,115 @@
+/*
+   GoToSocial
+   Copyright (C) 2021 GoToSocial Authors admin@gotosocial.org
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU Affero General Public License as published by
+   the Free Software Foundation, either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU Affero General Public License for more details.
+
+   You should have received a copy of the GNU Affero General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+package gtsmodel_test
+
+import (
+	"testing"
+	"time"
+
+	"github.com/stretchr/testify/suite"
+	"github.com/superseriousbusiness/gotosocial/internal/gtsmodel"
+)
+
+func happyBlock() *gtsmodel.Block {
+	return &gtsmodel.Block{
+		ID:              "01FE91RJR88PSEEE30EV35QR8N",
+		CreatedAt:       time.Now(),
+		UpdatedAt:       time.Now(),
+		URI:             "https://example.org/accounts/someone/blocks/01FE91RJR88PSEEE30EV35QR8N",
+		AccountID:       "01FEED79PRMVWPRMFHFQM8MJQN",
+		Account:         nil,
+		TargetAccountID: "01FEEDMF6C0QD589MRK7919Z0R",
+		TargetAccount:   nil,
+	}
+}
+
+type BlockValidateTestSuite struct {
+	suite.Suite
+}
+
+func (suite *BlockValidateTestSuite) TestValidateBlockHappyPath() {
+	// no problem here
+	d := happyBlock()
+	err := gtsmodel.ValidateStruct(*d)
+	suite.NoError(err)
+}
+
+func (suite *BlockValidateTestSuite) TestValidateBlockBadID() {
+	d := happyBlock()
+
+	d.ID = ""
+	err := gtsmodel.ValidateStruct(*d)
+	suite.EqualError(err, "Key: 'Block.ID' Error:Field validation for 'ID' failed on the 'required' tag")
+
+	d.ID = "01FE96W293ZPRG9FQQP48HK8N001FE96W32AT24VYBGM12WN3GKB"
+	err = gtsmodel.ValidateStruct(*d)
+	suite.EqualError(err, "Key: 'Block.ID' Error:Field validation for 'ID' failed on the 'ulid' tag")
+}
+
+func (suite *BlockValidateTestSuite) TestValidateBlockNoCreatedAt() {
+	d := happyBlock()
+
+	d.CreatedAt = time.Time{}
+	err := gtsmodel.ValidateStruct(*d)
+	suite.NoError(err)
+}
+
+func (suite *BlockValidateTestSuite) TestValidateBlockCreatedByAccountID() {
+	d := happyBlock()
+
+	d.AccountID = ""
+	err := gtsmodel.ValidateStruct(*d)
+	suite.EqualError(err, "Key: 'Block.AccountID' Error:Field validation for 'AccountID' failed on the 'required' tag")
+
+	d.AccountID = "this-is-not-a-valid-ulid"
+	err = gtsmodel.ValidateStruct(*d)
+	suite.EqualError(err, "Key: 'Block.AccountID' Error:Field validation for 'AccountID' failed on the 'ulid' tag")
+}
+
+func (suite *BlockValidateTestSuite) TestValidateBlockTargetAccountID() {
+	d := happyBlock()
+
+	d.TargetAccountID = "invalid-ulid"
+	err := gtsmodel.ValidateStruct(*d)
+	suite.EqualError(err, "Key: 'Block.TargetAccountID' Error:Field validation for 'TargetAccountID' failed on the 'ulid' tag")
+
+	d.TargetAccountID = "01FEEDHX4G7EGHF5GD9E82Y51Q"
+	err = gtsmodel.ValidateStruct(*d)
+	suite.NoError(err)
+
+	d.TargetAccountID = ""
+	err = gtsmodel.ValidateStruct(*d)
+	suite.EqualError(err, "Key: 'Block.TargetAccountID' Error:Field validation for 'TargetAccountID' failed on the 'required' tag")
+}
+
+func (suite *BlockValidateTestSuite) TestValidateBlockURI() {
+	d := happyBlock()
+
+	d.URI = "invalid-uri"
+	err := gtsmodel.ValidateStruct(*d)
+	suite.EqualError(err, "Key: 'Block.URI' Error:Field validation for 'URI' failed on the 'url' tag")
+
+	d.URI = ""
+	err = gtsmodel.ValidateStruct(*d)
+	suite.EqualError(err, "Key: 'Block.URI' Error:Field validation for 'URI' failed on the 'required' tag")
+}
+
+func TestBlockValidateTestSuite(t *testing.T) {
+	suite.Run(t, new(BlockValidateTestSuite))
+}

internal/gtsmodel/domainblock_test.go

@@ -0,0 +1,121 @@
+/*
+   GoToSocial
+   Copyright (C) 2021 GoToSocial Authors admin@gotosocial.org
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU Affero General Public License as published by
+   the Free Software Foundation, either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU Affero General Public License for more details.
+
+   You should have received a copy of the GNU Affero General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+package gtsmodel_test
+
+import (
+	"testing"
+	"time"
+
+	"github.com/stretchr/testify/suite"
+	"github.com/superseriousbusiness/gotosocial/internal/gtsmodel"
+)
+
+func happyDomainBlock() *gtsmodel.DomainBlock {
+	return &gtsmodel.DomainBlock{
+		ID:                 "01FE91RJR88PSEEE30EV35QR8N",
+		CreatedAt:          time.Now(),
+		UpdatedAt:          time.Now(),
+		Domain:             "baddudes.suck",
+		CreatedByAccountID: "01FEED79PRMVWPRMFHFQM8MJQN",
+		PrivateComment:     "we don't like em",
+		PublicComment:      "poo poo dudes",
+		Obfuscate:          false,
+		SubscriptionID:     "",
+	}
+}
+
+type DomainBlockValidateTestSuite struct {
+	suite.Suite
+}
+
+func (suite *DomainBlockValidateTestSuite) TestValidateDomainBlockHappyPath() {
+	// no problem here
+	d := happyDomainBlock()
+	err := gtsmodel.ValidateStruct(*d)
+	suite.NoError(err)
+}
+
+func (suite *DomainBlockValidateTestSuite) TestValidateDomainBlockBadID() {
+	d := happyDomainBlock()
+
+	d.ID = ""
+	err := gtsmodel.ValidateStruct(*d)
+	suite.EqualError(err, "Key: 'DomainBlock.ID' Error:Field validation for 'ID' failed on the 'required' tag")
+
+	d.ID = "01FE96W293ZPRG9FQQP48HK8N001FE96W32AT24VYBGM12WN3GKB"
+	err = gtsmodel.ValidateStruct(*d)
+	suite.EqualError(err, "Key: 'DomainBlock.ID' Error:Field validation for 'ID' failed on the 'ulid' tag")
+}
+
+func (suite *DomainBlockValidateTestSuite) TestValidateDomainBlockNoCreatedAt() {
+	d := happyDomainBlock()
+
+	d.CreatedAt = time.Time{}
+	err := gtsmodel.ValidateStruct(*d)
+	suite.NoError(err)
+}
+
+func (suite *DomainBlockValidateTestSuite) TestValidateDomainBlockBadDomain() {
+	d := happyDomainBlock()
+
+	d.Domain = ""
+	err := gtsmodel.ValidateStruct(*d)
+	suite.EqualError(err, "Key: 'DomainBlock.Domain' Error:Field validation for 'Domain' failed on the 'required' tag")
+
+	d.Domain = "this-is-not-a-valid-domain"
+	err = gtsmodel.ValidateStruct(*d)
+	suite.EqualError(err, "Key: 'DomainBlock.Domain' Error:Field validation for 'Domain' failed on the 'fqdn' tag")
+}
+
+func (suite *DomainBlockValidateTestSuite) TestValidateDomainBlockCreatedByAccountID() {
+	d := happyDomainBlock()
+
+	d.CreatedByAccountID = ""
+	err := gtsmodel.ValidateStruct(*d)
+	suite.EqualError(err, "Key: 'DomainBlock.CreatedByAccountID' Error:Field validation for 'CreatedByAccountID' failed on the 'required' tag")
+
+	d.CreatedByAccountID = "this-is-not-a-valid-ulid"
+	err = gtsmodel.ValidateStruct(*d)
+	suite.EqualError(err, "Key: 'DomainBlock.CreatedByAccountID' Error:Field validation for 'CreatedByAccountID' failed on the 'ulid' tag")
+}
+
+func (suite *DomainBlockValidateTestSuite) TestValidateDomainBlockComments() {
+	d := happyDomainBlock()
+
+	d.PrivateComment = ""
+	d.PublicComment = ""
+	err := gtsmodel.ValidateStruct(*d)
+	suite.NoError(err)
+}
+
+func (suite *DomainBlockValidateTestSuite) TestValidateDomainSubscriptionID() {
+	d := happyDomainBlock()
+
+	d.SubscriptionID = "invalid-ulid"
+	err := gtsmodel.ValidateStruct(*d)
+	suite.EqualError(err, "Key: 'DomainBlock.SubscriptionID' Error:Field validation for 'SubscriptionID' failed on the 'ulid' tag")
+
+	d.SubscriptionID = "01FEEDHX4G7EGHF5GD9E82Y51Q"
+	err = gtsmodel.ValidateStruct(*d)
+	suite.NoError(err)
+}
+
+func TestDomainBlockValidateTestSuite(t *testing.T) {
+	suite.Run(t, new(DomainBlockValidateTestSuite))
+}

internal/gtsmodel/emaildomainblock_test.go

@@ -0,0 +1,96 @@
+/*
+   GoToSocial
+   Copyright (C) 2021 GoToSocial Authors admin@gotosocial.org
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU Affero General Public License as published by
+   the Free Software Foundation, either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU Affero General Public License for more details.
+
+   You should have received a copy of the GNU Affero General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+package gtsmodel_test
+
+import (
+	"testing"
+	"time"
+
+	"github.com/stretchr/testify/suite"
+	"github.com/superseriousbusiness/gotosocial/internal/gtsmodel"
+)
+
+func happyEmailDomainBlock() *gtsmodel.EmailDomainBlock {
+	return &gtsmodel.EmailDomainBlock{
+		ID:                 "01FE91RJR88PSEEE30EV35QR8N",
+		CreatedAt:          time.Now(),
+		UpdatedAt:          time.Now(),
+		Domain:             "baddudes.suck",
+		CreatedByAccountID: "01FEED79PRMVWPRMFHFQM8MJQN",
+	}
+}
+
+type EmailDomainBlockValidateTestSuite struct {
+	suite.Suite
+}
+
+func (suite *EmailDomainBlockValidateTestSuite) TestValidateEmailDomainBlockHappyPath() {
+	// no problem here
+	e := happyEmailDomainBlock()
+	err := gtsmodel.ValidateStruct(*e)
+	suite.NoError(err)
+}
+
+func (suite *EmailDomainBlockValidateTestSuite) TestValidateEmailDomainBlockBadID() {
+	e := happyEmailDomainBlock()
+
+	e.ID = ""
+	err := gtsmodel.ValidateStruct(*e)
+	suite.EqualError(err, "Key: 'EmailDomainBlock.ID' Error:Field validation for 'ID' failed on the 'required' tag")
+
+	e.ID = "01FE96W293ZPRG9FQQP48HK8N001FE96W32AT24VYBGM12WN3GKB"
+	err = gtsmodel.ValidateStruct(*e)
+	suite.EqualError(err, "Key: 'EmailDomainBlock.ID' Error:Field validation for 'ID' failed on the 'ulid' tag")
+}
+
+func (suite *EmailDomainBlockValidateTestSuite) TestValidateEmailDomainBlockNoCreatedAt() {
+	e := happyEmailDomainBlock()
+
+	e.CreatedAt = time.Time{}
+	err := gtsmodel.ValidateStruct(*e)
+	suite.NoError(err)
+}
+
+func (suite *EmailDomainBlockValidateTestSuite) TestValidateEmailDomainBlockBadDomain() {
+	e := happyEmailDomainBlock()
+
+	e.Domain = ""
+	err := gtsmodel.ValidateStruct(*e)
+	suite.EqualError(err, "Key: 'EmailDomainBlock.Domain' Error:Field validation for 'Domain' failed on the 'required' tag")
+
+	e.Domain = "this-is-not-a-valid-domain"
+	err = gtsmodel.ValidateStruct(*e)
+	suite.EqualError(err, "Key: 'EmailDomainBlock.Domain' Error:Field validation for 'Domain' failed on the 'fqdn' tag")
+}
+
+func (suite *EmailDomainBlockValidateTestSuite) TestValidateEmailDomainBlockCreatedByAccountID() {
+	e := happyEmailDomainBlock()
+
+	e.CreatedByAccountID = ""
+	err := gtsmodel.ValidateStruct(*e)
+	suite.EqualError(err, "Key: 'EmailDomainBlock.CreatedByAccountID' Error:Field validation for 'CreatedByAccountID' failed on the 'required' tag")
+
+	e.CreatedByAccountID = "this-is-not-a-valid-ulid"
+	err = gtsmodel.ValidateStruct(*e)
+	suite.EqualError(err, "Key: 'EmailDomainBlock.CreatedByAccountID' Error:Field validation for 'CreatedByAccountID' failed on the 'ulid' tag")
+}
+
+func TestEmailDomainBlockValidateTestSuite(t *testing.T) {
+	suite.Run(t, new(EmailDomainBlockValidateTestSuite))
+}

internal/gtsmodel/follow.go

@@ -26,10 +26,10 @@ type Follow struct {
 	CreatedAt       time.Time `validate:"-" bun:",nullzero,notnull,default:current_timestamp"`          // when was item created
 	UpdatedAt       time.Time `validate:"-" bun:",nullzero,notnull,default:current_timestamp"`          // when was item last updated
 	URI             string    `validate:"required,url" bun:",notnull,nullzero,unique"`                  // ActivityPub uri of this follow.
-	AccountID       string    `validate:"required,ulid" bun:"type:CHAR(26),unique:srctarget,notnull"` // Who does this follow originate from?
+	AccountID       string    `validate:"required,ulid" bun:"type:CHAR(26),unique:srctarget,notnull"`   // Who does this follow originate from?
 	Account         *Account  `validate:"-" bun:"rel:belongs-to"`                                       // Account corresponding to accountID
-	TargetAccountID string    `validate:"required,ulid" bun:"type:CHAR(26),unique:srctarget,notnull"` // Who is the target of this follow ?
+	TargetAccountID string    `validate:"required,ulid" bun:"type:CHAR(26),unique:srctarget,notnull"`   // Who is the target of this follow ?
 	TargetAccount   *Account  `validate:"-" bun:"rel:belongs-to"`                                       // Account corresponding to targetAccountID
-	ShowReblogs     bool      `validate:"-" bun:",nullzero,default:true"`                                // Does this follow also want to see reblogs and not just posts?
+	ShowReblogs     bool      `validate:"-" bun:",nullzero,default:true"`                               // Does this follow also want to see reblogs and not just posts?
 	Notify          bool      `validate:"-" bun:",nullzero,default:false"`                              // does the following account want to be notified when the followed account posts?
 }

internal/gtsmodel/followrequest.go

@@ -30,6 +30,6 @@ type FollowRequest struct {
 	Account         *Account  `validate:"-" bun:"rel:belongs-to"`                                       // Account corresponding to accountID
 	TargetAccountID string    `validate:"required,ulid" bun:"type:CHAR(26),unique:frsrctarget,notnull"` // Who is the target of this follow request?
 	TargetAccount   *Account  `validate:"-" bun:"rel:belongs-to"`                                       // Account corresponding to targetAccountID
-	ShowReblogs     bool      `validate:"-" bun:",nullzero,default:true"`                                // Does this follow also want to see reblogs and not just posts?
+	ShowReblogs     bool      `validate:"-" bun:",nullzero,default:true"`                               // Does this follow also want to see reblogs and not just posts?
 	Notify          bool      `validate:"-" bun:",nullzero,default:false"`                              // does the following account want to be notified when the followed account posts?
 }

testrig/testmodels.go

@@ -261,10 +261,6 @@ func NewTestUsers() map[string]*gtsmodel.User {
 // NewTestAccounts returns a map of accounts keyed by what type of account they are.
 func NewTestAccounts() map[string]*gtsmodel.Account {
 	accounts := map[string]*gtsmodel.Account{
-		"instance_account": {
-			ID:       "01F8MH261H1KSV3GW3016GZRY3",
-			Username: "localhost:8080",
-		},
 		"unconfirmed_account": {
 			ID:                      "01F8MH0BBE4FHXPH513MBVFHB0",
 			Username:                "weed_lord420",

vendor/github.com/uptrace/bun/migrate/migration.go

@@ -0,0 +1,272 @@
+package migrate
+
+import (
+	"bufio"
+	"bytes"
+	"context"
+	"fmt"
+	"io/fs"
+	"sort"
+	"strings"
+	"time"
+
+	"github.com/uptrace/bun"
+)
+
+type Migration struct {
+	bun.BaseModel
+
+	ID         int64
+	Name       string
+	GroupID    int64
+	MigratedAt time.Time `bun:",notnull,nullzero,default:current_timestamp"`
+
+	Up   MigrationFunc `bun:"-"`
+	Down MigrationFunc `bun:"-"`
+}
+
+func (m *Migration) String() string {
+	return m.Name
+}
+
+func (m *Migration) IsApplied() bool {
+	return m.ID > 0
+}
+
+type MigrationFunc func(ctx context.Context, db *bun.DB) error
+
+func NewSQLMigrationFunc(fsys fs.FS, name string) MigrationFunc {
+	return func(ctx context.Context, db *bun.DB) error {
+		isTx := strings.HasSuffix(name, ".tx.up.sql") || strings.HasSuffix(name, ".tx.down.sql")
+
+		f, err := fsys.Open(name)
+		if err != nil {
+			return err
+		}
+
+		scanner := bufio.NewScanner(f)
+		var queries []string
+
+		var query []byte
+		for scanner.Scan() {
+			b := scanner.Bytes()
+
+			const prefix = "--bun:"
+			if bytes.HasPrefix(b, []byte(prefix)) {
+				b = b[len(prefix):]
+				if bytes.Equal(b, []byte("split")) {
+					queries = append(queries, string(query))
+					query = query[:0]
+					continue
+				}
+				return fmt.Errorf("bun: unknown directive: %q", b)
+			}
+
+			query = append(query, b...)
+			query = append(query, '\n')
+		}
+
+		if len(query) > 0 {
+			queries = append(queries, string(query))
+		}
+		if err := scanner.Err(); err != nil {
+			return err
+		}
+
+		var idb bun.IConn
+
+		if isTx {
+			tx, err := db.BeginTx(ctx, nil)
+			if err != nil {
+				return err
+			}
+			idb = tx
+		} else {
+			conn, err := db.Conn(ctx)
+			if err != nil {
+				return err
+			}
+			idb = conn
+		}
+
+		for _, q := range queries {
+			_, err = idb.ExecContext(ctx, q)
+			if err != nil {
+				return err
+			}
+		}
+
+		if tx, ok := idb.(bun.Tx); ok {
+			return tx.Commit()
+		} else if conn, ok := idb.(bun.Conn); ok {
+			return conn.Close()
+		}
+
+		panic("not reached")
+	}
+}
+
+const goTemplate = `package %s
+
+import (
+	"context"
+	"fmt"
+
+	"github.com/uptrace/bun"
+)
+
+func init() {
+	Migrations.MustRegister(func(ctx context.Context, db *bun.DB) error {
+		fmt.Print(" [up migration] ")
+		return nil
+	}, func(ctx context.Context, db *bun.DB) error {
+		fmt.Print(" [down migration] ")
+		return nil
+	})
+}
+`
+
+const sqlTemplate = `SELECT 1
+
+--bun:split
+
+SELECT 2
+`
+
+//------------------------------------------------------------------------------
+
+type MigrationSlice []Migration
+
+func (ms MigrationSlice) String() string {
+	if len(ms) == 0 {
+		return "empty"
+	}
+
+	if len(ms) > 5 {
+		return fmt.Sprintf("%d migrations (%s ... %s)", len(ms), ms[0].Name, ms[len(ms)-1].Name)
+	}
+
+	var sb strings.Builder
+
+	for i := range ms {
+		if i > 0 {
+			sb.WriteString(", ")
+		}
+		sb.WriteString(ms[i].Name)
+	}
+
+	return sb.String()
+}
+
+// Applied returns applied migrations in descending order
+// (the order is important and is used in Rollback).
+func (ms MigrationSlice) Applied() MigrationSlice {
+	var applied MigrationSlice
+	for i := range ms {
+		if ms[i].IsApplied() {
+			applied = append(applied, ms[i])
+		}
+	}
+	sortDesc(applied)
+	return applied
+}
+
+// Unapplied returns unapplied migrations in ascending order
+// (the order is important and is used in Migrate).
+func (ms MigrationSlice) Unapplied() MigrationSlice {
+	var unapplied MigrationSlice
+	for i := range ms {
+		if !ms[i].IsApplied() {
+			unapplied = append(unapplied, ms[i])
+		}
+	}
+	sortAsc(unapplied)
+	return unapplied
+}
+
+// LastGroupID returns the last applied migration group id.
+// The id is 0 when there are no migration groups.
+func (ms MigrationSlice) LastGroupID() int64 {
+	var lastGroupID int64
+	for i := range ms {
+		groupID := ms[i].GroupID
+		if groupID != 0 && groupID > lastGroupID {
+			lastGroupID = groupID
+		}
+	}
+	return lastGroupID
+}
+
+// LastGroup returns the last applied migration group.
+func (ms MigrationSlice) LastGroup() *MigrationGroup {
+	group := &MigrationGroup{
+		ID: ms.LastGroupID(),
+	}
+	if group.ID == 0 {
+		return group
+	}
+	for i := range ms {
+		if ms[i].GroupID == group.ID {
+			group.Migrations = append(group.Migrations, ms[i])
+		}
+	}
+	return group
+}
+
+type MigrationGroup struct {
+	ID         int64
+	Migrations MigrationSlice
+}
+
+func (g *MigrationGroup) IsZero() bool {
+	return g.ID == 0 && len(g.Migrations) == 0
+}
+
+func (g *MigrationGroup) String() string {
+	if g.IsZero() {
+		return "nil"
+	}
+	return fmt.Sprintf("group #%d (%s)", g.ID, g.Migrations)
+}
+
+type MigrationFile struct {
+	Name    string
+	Path    string
+	Content string
+}
+
+//------------------------------------------------------------------------------
+
+type migrationConfig struct {
+	nop bool
+}
+
+func newMigrationConfig(opts []MigrationOption) *migrationConfig {
+	cfg := new(migrationConfig)
+	for _, opt := range opts {
+		opt(cfg)
+	}
+	return cfg
+}
+
+type MigrationOption func(cfg *migrationConfig)
+
+func WithNopMigration() MigrationOption {
+	return func(cfg *migrationConfig) {
+		cfg.nop = true
+	}
+}
+
+//------------------------------------------------------------------------------
+
+func sortAsc(ms MigrationSlice) {
+	sort.Slice(ms, func(i, j int) bool {
+		return ms[i].Name < ms[j].Name
+	})
+}
+
+func sortDesc(ms MigrationSlice) {
+	sort.Slice(ms, func(i, j int) bool {
+		return ms[i].Name > ms[j].Name
+	})
+}

vendor/github.com/uptrace/bun/migrate/migrations.go

@@ -0,0 +1,168 @@
+package migrate
+
+import (
+	"errors"
+	"fmt"
+	"io/fs"
+	"os"
+	"path/filepath"
+	"regexp"
+	"runtime"
+	"strings"
+)
+
+type MigrationsOption func(m *Migrations)
+
+func WithMigrationsDirectory(directory string) MigrationsOption {
+	return func(m *Migrations) {
+		m.explicitDirectory = directory
+	}
+}
+
+type Migrations struct {
+	ms MigrationSlice
+
+	explicitDirectory string
+	implicitDirectory string
+}
+
+func NewMigrations(opts ...MigrationsOption) *Migrations {
+	m := new(Migrations)
+	for _, opt := range opts {
+		opt(m)
+	}
+	m.implicitDirectory = filepath.Dir(migrationFile())
+	return m
+}
+
+func (m *Migrations) Sorted() MigrationSlice {
+	migrations := make(MigrationSlice, len(m.ms))
+	copy(migrations, m.ms)
+	sortAsc(migrations)
+	return migrations
+}
+
+func (m *Migrations) MustRegister(up, down MigrationFunc) {
+	if err := m.Register(up, down); err != nil {
+		panic(err)
+	}
+}
+
+func (m *Migrations) Register(up, down MigrationFunc) error {
+	fpath := migrationFile()
+	name, err := extractMigrationName(fpath)
+	if err != nil {
+		return err
+	}
+
+	m.Add(Migration{
+		Name: name,
+		Up:   up,
+		Down: down,
+	})
+
+	return nil
+}
+
+func (m *Migrations) Add(migration Migration) {
+	if migration.Name == "" {
+		panic("migration name is required")
+	}
+	m.ms = append(m.ms, migration)
+}
+
+func (m *Migrations) DiscoverCaller() error {
+	dir := filepath.Dir(migrationFile())
+	return m.Discover(os.DirFS(dir))
+}
+
+func (m *Migrations) Discover(fsys fs.FS) error {
+	return fs.WalkDir(fsys, ".", func(path string, d fs.DirEntry, err error) error {
+		if err != nil {
+			return err
+		}
+		if d.IsDir() {
+			return nil
+		}
+
+		if !strings.HasSuffix(path, ".up.sql") && !strings.HasSuffix(path, ".down.sql") {
+			return nil
+		}
+
+		name, err := extractMigrationName(path)
+		if err != nil {
+			return err
+		}
+
+		migration := m.getOrCreateMigration(name)
+		if err != nil {
+			return err
+		}
+		migrationFunc := NewSQLMigrationFunc(fsys, path)
+
+		if strings.HasSuffix(path, ".up.sql") {
+			migration.Up = migrationFunc
+			return nil
+		}
+		if strings.HasSuffix(path, ".down.sql") {
+			migration.Down = migrationFunc
+			return nil
+		}
+
+		return errors.New("migrate: not reached")
+	})
+}
+
+func (m *Migrations) getOrCreateMigration(name string) *Migration {
+	for i := range m.ms {
+		m := &m.ms[i]
+		if m.Name == name {
+			return m
+		}
+	}
+
+	m.ms = append(m.ms, Migration{Name: name})
+	return &m.ms[len(m.ms)-1]
+}
+
+func (m *Migrations) getDirectory() string {
+	if m.explicitDirectory != "" {
+		return m.explicitDirectory
+	}
+	if m.implicitDirectory != "" {
+		return m.implicitDirectory
+	}
+	return filepath.Dir(migrationFile())
+}
+
+func migrationFile() string {
+	const depth = 32
+	var pcs [depth]uintptr
+	n := runtime.Callers(1, pcs[:])
+	frames := runtime.CallersFrames(pcs[:n])
+
+	for {
+		f, ok := frames.Next()
+		if !ok {
+			break
+		}
+		if !strings.Contains(f.Function, "/bun/migrate.") {
+			return f.File
+		}
+	}
+
+	return ""
+}
+
+var fnameRE = regexp.MustCompile(`^(\d{14})_[0-9a-z_\-]+\.`)
+
+func extractMigrationName(fpath string) (string, error) {
+	fname := filepath.Base(fpath)
+
+	matches := fnameRE.FindStringSubmatch(fname)
+	if matches == nil {
+		return "", fmt.Errorf("migrate: unsupported migration name format: %q", fname)
+	}
+
+	return matches[1], nil
+}

vendor/github.com/uptrace/bun/migrate/migrator.go

@@ -0,0 +1,401 @@
+package migrate
+
+import (
+	"context"
+	"errors"
+	"fmt"
+	"io/ioutil"
+	"log"
+	"path/filepath"
+	"regexp"
+	"time"
+
+	"github.com/uptrace/bun"
+)
+
+type MigratorOption func(m *Migrator)
+
+func WithTableName(table string) MigratorOption {
+	return func(m *Migrator) {
+		m.table = table
+	}
+}
+
+func WithLocksTableName(table string) MigratorOption {
+	return func(m *Migrator) {
+		m.locksTable = table
+	}
+}
+
+type Migrator struct {
+	db         *bun.DB
+	migrations *Migrations
+
+	ms MigrationSlice
+
+	table      string
+	locksTable string
+}
+
+func NewMigrator(db *bun.DB, migrations *Migrations, opts ...MigratorOption) *Migrator {
+	m := &Migrator{
+		db:         db,
+		migrations: migrations,
+
+		ms: migrations.ms,
+
+		table:      "bun_migrations",
+		locksTable: "bun_migration_locks",
+	}
+	for _, opt := range opts {
+		opt(m)
+	}
+	return m
+}
+
+func (m *Migrator) DB() *bun.DB {
+	return m.db
+}
+
+// MigrationsWithStatus returns migrations with status in ascending order.
+func (m *Migrator) MigrationsWithStatus(ctx context.Context) (MigrationSlice, error) {
+	sorted := m.migrations.Sorted()
+
+	applied, err := m.selectAppliedMigrations(ctx)
+	if err != nil {
+		return nil, err
+	}
+
+	appliedMap := migrationMap(applied)
+	for i := range sorted {
+		m1 := &sorted[i]
+		if m2, ok := appliedMap[m1.Name]; ok {
+			m1.ID = m2.ID
+			m1.GroupID = m2.GroupID
+			m1.MigratedAt = m2.MigratedAt
+		}
+	}
+
+	return sorted, nil
+}
+
+func (m *Migrator) Init(ctx context.Context) error {
+	if _, err := m.db.NewCreateTable().
+		Model((*Migration)(nil)).
+		ModelTableExpr(m.table).
+		IfNotExists().
+		Exec(ctx); err != nil {
+		return err
+	}
+	if _, err := m.db.NewCreateTable().
+		Model((*migrationLock)(nil)).
+		ModelTableExpr(m.locksTable).
+		IfNotExists().
+		Exec(ctx); err != nil {
+		return err
+	}
+	return nil
+}
+
+func (m *Migrator) Reset(ctx context.Context) error {
+	if _, err := m.db.NewDropTable().
+		Model((*Migration)(nil)).
+		ModelTableExpr(m.table).
+		IfExists().
+		Exec(ctx); err != nil {
+		return err
+	}
+	if _, err := m.db.NewDropTable().
+		Model((*migrationLock)(nil)).
+		ModelTableExpr(m.locksTable).
+		IfExists().
+		Exec(ctx); err != nil {
+		return err
+	}
+	return m.Init(ctx)
+}
+
+func (m *Migrator) Migrate(ctx context.Context, opts ...MigrationOption) (*MigrationGroup, error) {
+	cfg := newMigrationConfig(opts)
+
+	if err := m.validate(); err != nil {
+		return nil, err
+	}
+
+	if err := m.Lock(ctx); err != nil {
+		return nil, err
+	}
+	defer m.Unlock(ctx) //nolint:errcheck
+
+	migrations, err := m.MigrationsWithStatus(ctx)
+	if err != nil {
+		return nil, err
+	}
+
+	group := &MigrationGroup{
+		Migrations: migrations.Unapplied(),
+	}
+	if len(group.Migrations) == 0 {
+		return group, nil
+	}
+	group.ID = migrations.LastGroupID() + 1
+
+	for i := range group.Migrations {
+		migration := &group.Migrations[i]
+		migration.GroupID = group.ID
+
+		if !cfg.nop && migration.Up != nil {
+			if err := migration.Up(ctx, m.db); err != nil {
+				return nil, err
+			}
+		}
+
+		if err := m.MarkApplied(ctx, migration); err != nil {
+			return nil, err
+		}
+	}
+
+	return group, nil
+}
+
+func (m *Migrator) Rollback(ctx context.Context, opts ...MigrationOption) (*MigrationGroup, error) {
+	cfg := newMigrationConfig(opts)
+
+	if err := m.validate(); err != nil {
+		return nil, err
+	}
+
+	if err := m.Lock(ctx); err != nil {
+		return nil, err
+	}
+	defer m.Unlock(ctx) //nolint:errcheck
+
+	migrations, err := m.MigrationsWithStatus(ctx)
+	if err != nil {
+		return nil, err
+	}
+
+	lastGroup := migrations.LastGroup()
+
+	for i := len(lastGroup.Migrations) - 1; i >= 0; i-- {
+		migration := &lastGroup.Migrations[i]
+
+		if !cfg.nop && migration.Down != nil {
+			if err := migration.Down(ctx, m.db); err != nil {
+				return nil, err
+			}
+		}
+
+		if err := m.MarkUnapplied(ctx, migration); err != nil {
+			return nil, err
+		}
+	}
+
+	return lastGroup, nil
+}
+
+type MigrationStatus struct {
+	Migrations    MigrationSlice
+	NewMigrations MigrationSlice
+	LastGroup     *MigrationGroup
+}
+
+func (m *Migrator) Status(ctx context.Context) (*MigrationStatus, error) {
+	log.Printf(
+		"DEPRECATED: bun: replace Status(ctx) with " +
+			"MigrationsWithStatus(ctx)")
+
+	migrations, err := m.MigrationsWithStatus(ctx)
+	if err != nil {
+		return nil, err
+	}
+	return &MigrationStatus{
+		Migrations:    migrations,
+		NewMigrations: migrations.Unapplied(),
+		LastGroup:     migrations.LastGroup(),
+	}, nil
+}
+
+func (m *Migrator) MarkCompleted(ctx context.Context) (*MigrationGroup, error) {
+	log.Printf(
+		"DEPRECATED: bun: replace MarkCompleted(ctx) with " +
+			"Migrate(ctx, migrate.WithNopMigration())")
+
+	return m.Migrate(ctx, WithNopMigration())
+}
+
+type goMigrationConfig struct {
+	packageName string
+}
+
+type GoMigrationOption func(cfg *goMigrationConfig)
+
+func WithPackageName(name string) GoMigrationOption {
+	return func(cfg *goMigrationConfig) {
+		cfg.packageName = name
+	}
+}
+
+// CreateGoMigration creates a Go migration file.
+func (m *Migrator) CreateGoMigration(
+	ctx context.Context, name string, opts ...GoMigrationOption,
+) (*MigrationFile, error) {
+	cfg := &goMigrationConfig{
+		packageName: "migrations",
+	}
+	for _, opt := range opts {
+		opt(cfg)
+	}
+
+	name, err := m.genMigrationName(name)
+	if err != nil {
+		return nil, err
+	}
+
+	fname := name + ".go"
+	fpath := filepath.Join(m.migrations.getDirectory(), fname)
+	content := fmt.Sprintf(goTemplate, cfg.packageName)
+
+	if err := ioutil.WriteFile(fpath, []byte(content), 0o644); err != nil {
+		return nil, err
+	}
+
+	mf := &MigrationFile{
+		Name:    fname,
+		Path:    fpath,
+		Content: content,
+	}
+	return mf, nil
+}
+
+// CreateSQLMigrations creates an up and down SQL migration files.
+func (m *Migrator) CreateSQLMigrations(ctx context.Context, name string) ([]*MigrationFile, error) {
+	name, err := m.genMigrationName(name)
+	if err != nil {
+		return nil, err
+	}
+
+	up, err := m.createSQL(ctx, name+".up.sql")
+	if err != nil {
+		return nil, err
+	}
+
+	down, err := m.createSQL(ctx, name+".down.sql")
+	if err != nil {
+		return nil, err
+	}
+
+	return []*MigrationFile{up, down}, nil
+}
+
+func (m *Migrator) createSQL(ctx context.Context, fname string) (*MigrationFile, error) {
+	fpath := filepath.Join(m.migrations.getDirectory(), fname)
+
+	if err := ioutil.WriteFile(fpath, []byte(sqlTemplate), 0o644); err != nil {
+		return nil, err
+	}
+
+	mf := &MigrationFile{
+		Name:    fname,
+		Path:    fpath,
+		Content: goTemplate,
+	}
+	return mf, nil
+}
+
+var nameRE = regexp.MustCompile(`^[0-9a-z_\-]+$`)
+
+func (m *Migrator) genMigrationName(name string) (string, error) {
+	const timeFormat = "20060102150405"
+
+	if name == "" {
+		return "", errors.New("migrate: migration name can't be empty")
+	}
+	if !nameRE.MatchString(name) {
+		return "", fmt.Errorf("migrate: invalid migration name: %q", name)
+	}
+
+	version := time.Now().UTC().Format(timeFormat)
+	return fmt.Sprintf("%s_%s", version, name), nil
+}
+
+// MarkApplied marks the migration as applied (applied).
+func (m *Migrator) MarkApplied(ctx context.Context, migration *Migration) error {
+	_, err := m.db.NewInsert().Model(migration).
+		ModelTableExpr(m.table).
+		Exec(ctx)
+	return err
+}
+
+// MarkUnapplied marks the migration as unapplied (new).
+func (m *Migrator) MarkUnapplied(ctx context.Context, migration *Migration) error {
+	_, err := m.db.NewDelete().
+		Model(migration).
+		ModelTableExpr(m.table).
+		Where("id = ?", migration.ID).
+		Exec(ctx)
+	return err
+}
+
+// selectAppliedMigrations selects applied (applied) migrations in descending order.
+func (m *Migrator) selectAppliedMigrations(ctx context.Context) (MigrationSlice, error) {
+	var ms MigrationSlice
+	if err := m.db.NewSelect().
+		ColumnExpr("*").
+		Model(&ms).
+		ModelTableExpr(m.table).
+		Scan(ctx); err != nil {
+		return nil, err
+	}
+	return ms, nil
+}
+
+func (m *Migrator) formattedTableName(db *bun.DB) string {
+	return db.Formatter().FormatQuery(m.table)
+}
+
+func (m *Migrator) validate() error {
+	if len(m.ms) == 0 {
+		return errors.New("migrate: there are no any migrations")
+	}
+	return nil
+}
+
+//------------------------------------------------------------------------------
+
+type migrationLock struct {
+	ID        int64
+	TableName string `bun:",unique"`
+}
+
+func (m *Migrator) Lock(ctx context.Context) error {
+	lock := &migrationLock{
+		TableName: m.formattedTableName(m.db),
+	}
+	if _, err := m.db.NewInsert().
+		Model(lock).
+		ModelTableExpr(m.locksTable).
+		Exec(ctx); err != nil {
+		return fmt.Errorf("migrate: migrations table is already locked (%w)", err)
+	}
+	return nil
+}
+
+func (m *Migrator) Unlock(ctx context.Context) error {
+	tableName := m.formattedTableName(m.db)
+	_, err := m.db.NewDelete().
+		Model((*migrationLock)(nil)).
+		ModelTableExpr(m.locksTable).
+		Where("? = ?", bun.Ident("table_name"), tableName).
+		Exec(ctx)
+	return err
+}
+
+func migrationMap(ms MigrationSlice) map[string]*Migration {
+	mp := make(map[string]*Migration)
+	for i := range ms {
+		m := &ms[i]
+		mp[m.Name] = m
+	}
+	return mp
+}

vendor/modules.txt

@@ -404,6 +404,7 @@ github.com/uptrace/bun/extra/bunjson
 github.com/uptrace/bun/internal
 github.com/uptrace/bun/internal/parser
 github.com/uptrace/bun/internal/tagparser
+github.com/uptrace/bun/migrate
 github.com/uptrace/bun/schema
 # github.com/uptrace/bun/dialect/pgdialect v0.4.3
 ## explicit