fix: problems

docs/docs/03-cli/04-migrate.md

@@ -18,4 +18,5 @@ amigo migrate
 - `--timeout` is the timeout for the migration (default is 2m0s).
 - `--version` will apply a specific version. The format is `20240502083700` or `20240502083700_name.go`.
 - `--continue-on-error` will not rollback the migration if an error occurs.
+- `-d` dump the schema after migrating
 

docs/docs/03-cli/05-rollback.md

@@ -18,3 +18,4 @@ amigo rollback
 - `--version` will rollback a specific version. The format is `20240502083700` or `20240502083700_name.go`.
 - `--steps` will rollback the last `n` migrations. (default is 1)
 - `--continue-on-error` will not rollback the migration if an error occurs.
+- `-d` dump the schema after migrating

docs/docs/03-cli/07-schema.md

@@ -0,0 +1,11 @@
+# Schema
+
+The `schema` command allow to dump the schema to `db/schema.sql` (default path)
+
+Database supported: 
+- postgres (via pg_dump)
+
+## Flags 
+
+- `--schema-db-dump-schema` will change the schema (default public) to dump
+- `--schema-out-path` will change the path to output the file (db/schema.sql)

docs/docs/04-api/100-migrating-in-go.md

@@ -7,7 +7,7 @@ package main
 
 import (
 	"database/sql"
-	"example/pg/migrations"
+	"example/pg/db/migrations"
 	"github.com/alexisvisco/amigo/pkg/amigo"
 	"github.com/alexisvisco/amigo/pkg/amigoctx"
 	"github.com/alexisvisco/amigo/pkg/types"
@@ -23,15 +23,31 @@ func main() {
 		panic(err)
 	}
 
-	err = amigo.NewAmigo(amigoctx.NewContext().WithDSN(dsn)).RunMigrations(amigo.RunMigrationParams{
-		DB:         db,
-		Direction:  types.MigrationDirectionUp,
-		Migrations: migrations.Migrations,
-		LogOutput:  os.Stdout,
-	})
+	err = migrateDatabase(dsn, db) 
 	if err != nil {
 		panic(err)
+    }
+}
+
+func migrateDatabase(databaseURL string, rawDB *sql.DB) error {
+	dumpSchemaAfterMigrating := os.Getenv("DUMP_SCHEMA_AFTER_MIGRATING") == "true"
+
+	a := amigoctx.NewContext().
+		WithDSN(databaseURL). // you need to provide the dsn too, in order for amigo to detect the driver
+		WithShowSQL(true). // will show you sql queries
+		WithDumpSchemaAfterMigrating(dumpSchemaAfterMigrating) // will create/modify the schema.sql in db folder (only in local is suitable)
+
+	err := amigo.NewAmigo(a).RunMigrations(amigo.RunMigrationParams{
+		DB:         rawDB,
+		Direction:  amigotypes.MigrationDirectionUp, // will migrate the database up
+		Migrations: migrations.Migrations, // where migrations are located (db/migrations)
+		Logger:     slog.Default(), // you can also only specify the LogOutput and it will use the default amigo logger at your desired output (io.Writer)
+	})
+	if err != nil {
+		return fmt.Errorf("failed to migrate database: %w", err)
 	}
+
+	return nil
 }
 ```
 

pkg/schema/detect_migrations.go

@@ -15,7 +15,6 @@ func (m *Migrator[T]) detectMigrationsToExec(
 	version *string,
 	steps *int, // only used for rollback
 ) (migrationsToApply []Migration, firstRun bool) {
-	s.FindAppliedVersions()
 	appliedVersions, err := utils.PanicToError1(s.FindAppliedVersions)
 	if isTableDoesNotExists(err) {
 		firstRun = true