compile and update migration package

pkg/migrations/mysql/migration_api.go

@@ -2,6 +2,7 @@ package mysql
 
 import (
 	"fmt"
+	"log"
 	"runtime"
 	"strings"
 
@@ -10,6 +11,26 @@ import (
 
 var registeredGoMigrations map[int64]*rockhopper.Migration
 
+func MergeMigrationsMap(ms map[int64]*rockhopper.Migration) {
+	for k, m := range ms {
+		if _, ok := registeredGoMigrations[k]; !ok {
+			registeredGoMigrations[k] = m
+		} else {
+			log.Printf("the migration key %d is duplicated: %+v", k, m)
+		}
+	}
+}
+
+func GetMigrationsMap() map[int64]*rockhopper.Migration {
+	return registeredGoMigrations
+}
+
+// SortedMigrations builds up the migration objects, sort them by timestamp and return as a slice
+func SortedMigrations() rockhopper.MigrationSlice {
+	return Migrations()
+}
+
+// Migrations builds up the migration objects, sort them by timestamp and return as a slice
 func Migrations() rockhopper.MigrationSlice {
 	var migrations = rockhopper.MigrationSlice{}
 	for _, migration := range registeredGoMigrations {
@@ -19,21 +40,28 @@ func Migrations() rockhopper.MigrationSlice {
 	return migrations.SortAndConnect()
 }
 
-// AddMigration adds a migration.
+// AddMigration adds a migration with its runtime caller information
 func AddMigration(up, down rockhopper.TransactionHandler) {
 	pc, filename, _, _ := runtime.Caller(1)
 
 	funcName := runtime.FuncForPC(pc).Name()
+	packageName := _parseFuncPackageName(funcName)
+	AddNamedMigration(packageName, filename, up, down)
+}
+
+// parseFuncPackageName parses the package name from a given runtime caller function name
+func _parseFuncPackageName(funcName string) string {
 	lastSlash := strings.LastIndexByte(funcName, '/')
 	if lastSlash < 0 {
 		lastSlash = 0
 	}
+
 	lastDot := strings.LastIndexByte(funcName[lastSlash:], '.') + lastSlash
 	packageName := funcName[:lastDot]
-	AddNamedMigration(packageName, filename, up, down)
+	return packageName
 }
 
-// AddNamedMigration : Add a named migration.
+// AddNamedMigration adds a named migration to the registered go migration map
 func AddNamedMigration(packageName, filename string, up, down rockhopper.TransactionHandler) {
 	if registeredGoMigrations == nil {
 		registeredGoMigrations = make(map[int64]*rockhopper.Migration)

pkg/migrations/mysql/migration_api_test.go

@@ -0,0 +1,20 @@
+package mysql
+
+import (
+	"testing"
+
+	"github.com/c9s/rockhopper"
+	"github.com/stretchr/testify/assert"
+)
+
+func TestGetMigrationsMap(t *testing.T) {
+	mm := GetMigrationsMap()
+	assert.NotEmpty(t, mm)
+}
+
+func TestMergeMigrationsMap(t *testing.T) {
+	MergeMigrationsMap(map[int64]*rockhopper.Migration{
+		2: &rockhopper.Migration{},
+		3: &rockhopper.Migration{},
+	})
+}

pkg/migrations/sqlite3/migration_api.go

@@ -2,6 +2,7 @@ package sqlite3
 
 import (
 	"fmt"
+	"log"
 	"runtime"
 	"strings"
 
@@ -10,6 +11,26 @@ import (
 
 var registeredGoMigrations map[int64]*rockhopper.Migration
 
+func MergeMigrationsMap(ms map[int64]*rockhopper.Migration) {
+	for k, m := range ms {
+		if _, ok := registeredGoMigrations[k]; !ok {
+			registeredGoMigrations[k] = m
+		} else {
+			log.Printf("the migration key %d is duplicated: %+v", k, m)
+		}
+	}
+}
+
+func GetMigrationsMap() map[int64]*rockhopper.Migration {
+	return registeredGoMigrations
+}
+
+// SortedMigrations builds up the migration objects, sort them by timestamp and return as a slice
+func SortedMigrations() rockhopper.MigrationSlice {
+	return Migrations()
+}
+
+// Migrations builds up the migration objects, sort them by timestamp and return as a slice
 func Migrations() rockhopper.MigrationSlice {
 	var migrations = rockhopper.MigrationSlice{}
 	for _, migration := range registeredGoMigrations {
@@ -19,21 +40,28 @@ func Migrations() rockhopper.MigrationSlice {
 	return migrations.SortAndConnect()
 }
 
-// AddMigration adds a migration.
+// AddMigration adds a migration with its runtime caller information
 func AddMigration(up, down rockhopper.TransactionHandler) {
 	pc, filename, _, _ := runtime.Caller(1)
 
 	funcName := runtime.FuncForPC(pc).Name()
+	packageName := _parseFuncPackageName(funcName)
+	AddNamedMigration(packageName, filename, up, down)
+}
+
+// parseFuncPackageName parses the package name from a given runtime caller function name
+func _parseFuncPackageName(funcName string) string {
 	lastSlash := strings.LastIndexByte(funcName, '/')
 	if lastSlash < 0 {
 		lastSlash = 0
 	}
+
 	lastDot := strings.LastIndexByte(funcName[lastSlash:], '.') + lastSlash
 	packageName := funcName[:lastDot]
-	AddNamedMigration(packageName, filename, up, down)
+	return packageName
 }
 
-// AddNamedMigration : Add a named migration.
+// AddNamedMigration adds a named migration to the registered go migration map
 func AddNamedMigration(packageName, filename string, up, down rockhopper.TransactionHandler) {
 	if registeredGoMigrations == nil {
 		registeredGoMigrations = make(map[int64]*rockhopper.Migration)

pkg/migrations/sqlite3/migration_api_test.go

@@ -0,0 +1,20 @@
+package sqlite3
+
+import (
+	"testing"
+
+	"github.com/c9s/rockhopper"
+	"github.com/stretchr/testify/assert"
+)
+
+func TestGetMigrationsMap(t *testing.T) {
+	mm := GetMigrationsMap()
+	assert.NotEmpty(t, mm)
+}
+
+func TestMergeMigrationsMap(t *testing.T) {
+	MergeMigrationsMap(map[int64]*rockhopper.Migration{
+		2: &rockhopper.Migration{},
+		3: &rockhopper.Migration{},
+	})
+}