package functions

goerd.go

@@ -0,0 +1,34 @@
+package goerd
+
+import (
+	"database/sql"
+	"io"
+
+	"github.com/covrom/goerd/drivers/postgres"
+	"github.com/covrom/goerd/schema"
+)
+
+func SchemaFromPostgresDB(db *sql.DB) (*schema.Schema, error) {
+	s := &schema.Schema{}
+	driver := postgres.New(db)
+	err := driver.Analyze(s)
+	return s, err
+}
+
+func GenerateMigrationSQL(sfrom, sto *schema.Schema) []string {
+	ptch := &schema.PatchSchema{CurrentSchema: sfrom.CurrentSchema}
+	ptch.Build(sfrom, sto)
+	return ptch.GenerateSQL()
+}
+
+func SchemaToYAML(s *schema.Schema, w io.Writer) error {
+	return s.SaveYaml(w)
+}
+
+func SchemaFromYAML(r io.Reader) (*schema.Schema, error) {
+	s := &schema.Schema{}
+	if err := s.LoadYaml(r); err != nil {
+		return nil, err
+	}
+	return s, nil
+}