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mysql.go
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mysql.go
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package mysql
import (
"io"
apperr "github.com/kunitsucom/ddlctl/pkg/apperr"
ddlast "github.com/kunitsucom/ddlctl/pkg/internal/generator"
"github.com/kunitsucom/ddlctl/pkg/logs"
)
const (
Dialect = "mysql"
CommentPrefix = "--"
Quotation = "`"
)
func Fprint(w io.Writer, ddl *ddlast.DDL) error {
var buf string
for _, header := range ddl.Header {
fprintComment(&buf, "", header)
}
for _, statement := range ddl.Stmts {
buf += "\n"
switch stmt := statement.(type) {
case *ddlast.CreateTableStmt:
fprintCreateTable(&buf, ddl.Indent, stmt)
case *ddlast.CreateIndexStmt:
fprintCreateIndex(&buf, ddl.Indent, stmt)
default:
logs.Warn.Printf("unknown statement type: %T: %v", stmt, apperr.ErrNotSupported)
continue
}
}
if _, err := io.WriteString(w, buf); err != nil {
return apperr.Errorf("io.WriteString: %w", err)
}
return nil
}
func fprintComment(buf *string, indent string, comment string) {
if comment == "" {
*buf += indent + CommentPrefix + "\n"
return
}
*buf += indent + CommentPrefix + " " + comment + "\n"
return //nolint:gosimple
}