feat: include SQL scripts in schema diff

pkg/diff/diff.go

@@ -1,6 +1,7 @@
 package diff
 
 import (
+	"fmt"
 	"reflect"
 	"sort"
 
@@ -96,6 +97,13 @@ func compareSchemaDetails(source, target *models.Schema) *SchemaChange {
 		hasChanges = true
 	}
 
+	// Compare scripts
+	scriptDiff := compareScripts(source.Scripts, target.Scripts)
+	if !isEmpty(scriptDiff) {
+		change.Scripts = scriptDiff
+		hasChanges = true
+	}
+
 	if !hasChanges {
 		return nil
 	}
@@ -543,6 +551,79 @@ func compareSequenceDetails(source, target *models.Sequence) map[string]any {
 	return changes
 }
 
+func compareScripts(source, target []*models.Script) *ScriptDiff {
+	diff := &ScriptDiff{
+		Missing:  make([]*models.Script, 0),
+		Extra:    make([]*models.Script, 0),
+		Modified: make([]*ScriptChange, 0),
+	}
+
+	sourceMap := make(map[string]*models.Script)
+	targetMap := make(map[string]*models.Script)
+
+	for _, s := range source {
+		sourceMap[scriptCompareKey(s)] = s
+	}
+	for _, s := range target {
+		targetMap[scriptCompareKey(s)] = s
+	}
+
+	for _, name := range sortedKeys(sourceMap) {
+		srcScript := sourceMap[name]
+		if tgtScript, exists := targetMap[name]; !exists {
+			diff.Missing = append(diff.Missing, srcScript)
+		} else if changes := compareScriptDetails(srcScript, tgtScript); len(changes) > 0 {
+			diff.Modified = append(diff.Modified, &ScriptChange{
+				Name:    srcScript.Name,
+				Source:  srcScript,
+				Target:  tgtScript,
+				Changes: changes,
+			})
+		}
+	}
+
+	for _, name := range sortedKeys(targetMap) {
+		tgtScript := targetMap[name]
+		if _, exists := sourceMap[name]; !exists {
+			diff.Extra = append(diff.Extra, tgtScript)
+		}
+	}
+
+	return diff
+}
+
+func scriptCompareKey(script *models.Script) string {
+	return fmt.Sprintf("%d:%d:%s", script.Priority, script.Sequence, script.SQLName())
+}
+
+func compareScriptDetails(source, target *models.Script) map[string]any {
+	changes := make(map[string]any)
+
+	if source.SQL != target.SQL {
+		changes["sql"] = map[string]string{"source": source.SQL, "target": target.SQL}
+	}
+	if source.Rollback != target.Rollback {
+		changes["rollback"] = map[string]string{"source": source.Rollback, "target": target.Rollback}
+	}
+	if !reflect.DeepEqual(source.RunAfter, target.RunAfter) {
+		changes["run_after"] = map[string][]string{"source": source.RunAfter, "target": target.RunAfter}
+	}
+	if source.Schema != target.Schema {
+		changes["schema"] = map[string]string{"source": source.Schema, "target": target.Schema}
+	}
+	if source.Version != target.Version {
+		changes["version"] = map[string]string{"source": source.Version, "target": target.Version}
+	}
+	if source.Priority != target.Priority {
+		changes["priority"] = map[string]int{"source": source.Priority, "target": target.Priority}
+	}
+	if source.Sequence != target.Sequence {
+		changes["sequence"] = map[string]uint{"source": source.Sequence, "target": target.Sequence}
+	}
+
+	return changes
+}
+
 // Helper function to check if a diff is empty
 func isEmpty(v any) bool {
 	switch d := v.(type) {
@@ -560,6 +641,8 @@ func isEmpty(v any) bool {
 		return len(d.Missing) == 0 && len(d.Extra) == 0 && len(d.Modified) == 0
 	case *SequenceDiff:
 		return len(d.Missing) == 0 && len(d.Extra) == 0 && len(d.Modified) == 0
+	case *ScriptDiff:
+		return len(d.Missing) == 0 && len(d.Extra) == 0 && len(d.Modified) == 0
 	default:
 		return false
 	}
@@ -616,6 +699,11 @@ func ComputeSummary(result *DiffResult) *Summary {
 				summary.Sequences.Extra += len(schemaChange.Sequences.Extra)
 				summary.Sequences.Modified += len(schemaChange.Sequences.Modified)
 			}
+			if schemaChange.Scripts != nil {
+				summary.Scripts.Missing += len(schemaChange.Scripts.Missing)
+				summary.Scripts.Extra += len(schemaChange.Scripts.Extra)
+				summary.Scripts.Modified += len(schemaChange.Scripts.Modified)
+			}
 		}
 	}