Add migration, status and pending checks to database

database/migrator.go

@@ -0,0 +1,64 @@
+package database
+
+import (
+	"embed"
+	"fmt"
+
+	migrate "github.com/rubenv/sql-migrate"
+)
+
+//go:embed migrations/*
+var dbMigrations embed.FS
+var migrations = migrate.EmbedFileSystemMigrationSource{
+	FileSystem: dbMigrations,
+	Root:       "migrations",
+}
+
+func Migrate(Up bool) error {
+	var direction migrate.MigrationDirection
+	if Up {
+		direction = migrate.Up
+	} else {
+		direction = migrate.Down
+	}
+
+	n, err := migrate.Exec(Conn, "sqlite3", migrations, direction)
+	if err != nil {
+		return err
+	}
+
+	fmt.Printf("Applied %d migrations!\n", n)
+	return nil
+}
+
+func Status() error {
+	// Get the list of applied migrations
+	applied, err := migrate.GetMigrationRecords(Conn, "sqlite3")
+	if err != nil {
+		return err
+	}
+
+	// Get the list of migrations that are yet to be applied
+	planned, _, err := migrate.PlanMigration(Conn, "sqlite3", migrations, migrate.Up, 0)
+	if err != nil {
+		return err
+	}
+
+	fmt.Println("Migration list:")
+	for _, migration := range applied {
+		fmt.Printf("DONE: %s\n", migration.Id)
+	}
+	for _, migration := range planned {
+		fmt.Printf("TODO: %s\n", migration.Id)
+	}
+
+	return nil
+}
+
+func Pending() (bool, error) {
+	planned, _, err := migrate.PlanMigration(Conn, "sqlite3", migrations, migrate.Up, 0)
+	if err != nil {
+		return false, err
+	}
+	return len(planned) > 0, nil
+}