Parsable DSL for creating and dropping tables

krab/type_ddl_check.go

@@ -0,0 +1,7 @@
+package krab
+
+// DDLCheck constraint DSL for table DDL.
+type DDLCheck struct {
+	Name       string `hcl:"name,label"`
+	Expression string `hcl:"expression"`
+}

krab/type_ddl_column.go

@@ -0,0 +1,13 @@
+package krab
+
+import "github.com/hashicorp/hcl/v2"
+
+// DDLColumn constraint DSL for table DDL.
+type DDLColumn struct {
+	Name      string              `hcl:"name,label"`
+	Type      string              `hcl:"type,label"`
+	Null      *bool               `hcl:"null,optional"`
+	Identity  *DDLIdentity        `hcl:"identity,block"`
+	Default   hcl.Expression      `hcl:"default,optional"`
+	Generated *DDLGeneratedColumn `hcl:"generated,block"`
+}

krab/type_ddl_create_table.go

@@ -0,0 +1,12 @@
+package krab
+
+// DDLCreateTable contains DSL for creating tables.
+type DDLCreateTable struct {
+	Name        string           `hcl:"name,label"`
+	Unlogged    bool             `hcl:"unlogged,optional"`
+	Columns     []*DDLColumn     `hcl:"column,block"`
+	PrimaryKeys []*DDLPrimaryKey `hcl:"primary_key,block"`
+	ForeignKeys []*DDLForeignKey `hcl:"foreign_key,block"`
+	Uniques     []*DDLUnique     `hcl:"unique,block"`
+	Checks      []*DDLCheck      `hcl:"check,block"`
+}

krab/type_ddl_drop_table.go

@@ -0,0 +1,6 @@
+package krab
+
+// DDLDropTable contains DSL for dropping tables.
+type DDLDropTable struct {
+	Table string `hcl:"table,label"`
+}

krab/type_ddl_foreign_key.go

@@ -0,0 +1,8 @@
+package krab
+
+// DDLForeignKey constraint DSL for table DDL.
+type DDLForeignKey struct {
+	Name       string        `hcl:"name,label"`
+	Columns    []string      `hcl:"columns"`
+	References DDLReferences `hcl:"references,block"`
+}

krab/type_ddl_generated_column.go

@@ -0,0 +1,6 @@
+package krab
+
+// DDLGeneratedColumn DSL.
+type DDLGeneratedColumn struct {
+	As string `hcl:"as"`
+}

krab/type_ddl_identity.go

@@ -0,0 +1,6 @@
+package krab
+
+// DDLIdentity DSL.
+type DDLIdentity struct {
+	Generated string `hcl:"generated,label"`
+}

krab/type_ddl_primary_key.go

@@ -0,0 +1,8 @@
+package krab
+
+// DDLPrimaryKey constraint DSL for table DDL.
+type DDLPrimaryKey struct {
+	Name    string   `hcl:"name,label"`
+	Columns []string `hcl:"columns"`
+	Include []string `hcl:"include,optional"`
+}

krab/type_ddl_references.go

@@ -0,0 +1,9 @@
+package krab
+
+// DDLReferences DSL for ForeignKey.
+type DDLReferences struct {
+	Table    string   `hcl:"table,label"`
+	Columns  []string `hcl:"columns"`
+	OnDelete string   `hcl:"on_delete,optional"`
+	OnUpdate string   `hcl:"on_update,optional"`
+}

krab/type_ddl_unique.go

@@ -0,0 +1,8 @@
+package krab
+
+// DDLUnique constraint DSL for table DDL.
+type DDLUnique struct {
+	Name    string   `hcl:"name,label"`
+	Columns []string `hcl:"columns"`
+	Include []string `hcl:"include,optional"`
+}

krab/type_migration.go

@@ -1,63 +1,25 @@
 package krab
 
-import "fmt"
+import (
+	"fmt"
+)
 
 // Migration represents single up/down migration pair.
 //
 type Migration struct {
 	RefName string `hcl:"ref_name,label"`
 
-	Version     string        `hcl:"version"`
-	Up          MigrationUp   `hcl:"up,block"`
-	Down        MigrationDown `hcl:"down,block"`
-	Transaction *bool         `hcl:"transaction,optional"` // wrap operaiton in transaction
+	Version     string            `hcl:"version"`
+	Up          MigrationUpOrDown `hcl:"up,block"`
+	Down        MigrationUpOrDown `hcl:"down,block"`
+	Transaction *bool             `hcl:"transaction,optional"` // wrap operaiton in transaction
 }
 
-// MigrationUp contains info how to migrate up.
-type MigrationUp struct {
-	SQL string `hcl:"sql,optional"`
-}
-
-// MigrationDown contains info how to migrate down.
-type MigrationDown struct {
-	SQL string `hcl:"sql,optional"`
-}
-
-// CreateTable contains DSL for creating tables.
-type CreateTable struct {
-	Name     string `hcl:"name,label"`
-	Unlogged bool
-}
-
-// PrimaryKey constraint DSL for table DDL.
-type PrimaryKey struct {
-	Name string `hcl:"name,label"`
-}
-
-// ForeignKey constraint DSL for table DDL.
-type ForeignKey struct {
-	Name string `hcl:"name,label"`
-}
-
-// ForeignKey constraint DSL for table DDL.
-type Unique struct {
-	Name string `hcl:"name,label"`
-}
-
-// Column constraint DSL for table DDL.
-type Column struct {
-	Name string `hcl:"name,label"`
-	Type string `hcl:"type,label"`
-}
-
-// Check constraint DSL for table DDL.
-type Check struct {
-	Name string `hcl:"name,label"`
-}
-
-// DropTable contains DSL for dropping tables.
-type DropTable struct {
-	Table string `hcl:"table,label"`
+// Migration contains info how to migrate up or down.
+type MigrationUpOrDown struct {
+	SQL          string            `hcl:"sql,optional"`
+	CreateTables []*DDLCreateTable `hcl:"create_table,block"`
+	DropTables   []*DDLDropTable   `hcl:"drop_table,block"`
 }
 
 func (ms *Migration) Validate() error {

spec/action_migrate_up_dsl_test.go

@@ -6,7 +6,7 @@ import (
 	"github.com/jmoiron/sqlx"
 )
 
-func XTestActionMigrateUpDsl(t *testing.T) {
+func TestActionMigrateUpDsl(t *testing.T) {
 	withPg(t, func(db *sqlx.DB) {
 		c := mockCli(mockConfig(`
 migration "create_categories" {
@@ -101,7 +101,7 @@ create_animals v2
 Done
 `,
 		)
-		c.AssertSchemaMigrationTable(t, db, "public", "v1")
+		c.AssertSchemaMigrationTable(t, db, "public", "v1", "v2")
 	})
 }