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2018-08-16 Fred Gleason <fredg@paravelsystems.com>

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* Added table rewriting when converting tables to a different
	character set in rddbmgr(8).
This commit is contained in:
Fred Gleason
2018-08-16 19:25:50 +00:00
parent c7335075f2
commit 110fdf856f
6 changed files with 96 additions and 12 deletions
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81
utils/rddbmgr/check.cpp
View File

@@ -26,10 +26,12 @@
#include <sys/types.h>
#include <qdir.h>
#include <qprocess.h>
#include <dbversion.h>
#include <rdcart.h>
#include <rdclock.h>
#include <rdconf.h>
#include <rdcut.h>
#include <rddb.h>
#include <rdescape_string.h>
@@ -39,7 +41,7 @@
#include "rddbmgr.h"
bool MainObject::Check(QString *err_msg) const
bool MainObject::Check(QString *err_msg)
{
if(GetCurrentSchema()!=RD_VERSION_DATABASE) {
*err_msg="unsupported schema for checking";
@@ -124,7 +126,7 @@ bool MainObject::Check(QString *err_msg) const
}
void MainObject::CheckTableAttributes() const
void MainObject::CheckTableAttributes()
{
QString sql;
RDSqlQuery *q;
@@ -163,10 +165,8 @@ void MainObject::CheckTableAttributes() const
(const char *)db_mysql_collation.toUtf8());
fflush(NULL);
if(UserResponse()) {
sql=QString("alter table `")+q->value(0).toString()+"` "+
"character set "+db_mysql_charset+" "+
"collate "+db_mysql_collation;
RDSqlQuery::apply(sql);
RewriteTable(q->value(0).toString(),charset,db_mysql_charset,
db_mysql_collation);
}
}
}
@@ -204,6 +204,75 @@ void MainObject::CheckTableAttributes() const
}
void MainObject::RewriteTable(const QString &tblname,const QString &old_charset,
const QString &new_charset,
const QString &new_collation)
{
QProcess *proc=NULL;
QStringList args;
QString tempdir=RDTempDir();
if(tempdir.isEmpty()) {
return;
}
QString filename=tempdir+"/table.sql";
QString out_filename=tempdir+"/table-out.sql";
printf("using: %s\n",(const char *)tempdir.toUtf8());
//
// Dump Table
//
args.clear();
args.push_back("--opt");
args.push_back("-h");
args.push_back(db_mysql_hostname);
args.push_back("-u");
args.push_back(db_mysql_loginname);
args.push_back("-p"+db_mysql_password);
args.push_back(db_mysql_database);
args.push_back(tblname);
proc=new QProcess(this);
proc->setStandardOutputFile(filename);
proc->start("mysqldump",args);
proc->waitForFinished(-1);
delete proc;
//
// Modify Dump
//
args.clear();
args.push_back("s/"+old_charset+"/"+new_charset+"/g");
args.push_back(filename);
proc=new QProcess(this);
proc->setStandardOutputFile(out_filename);
proc->start("sed",args);
proc->waitForFinished(-1);
delete proc;
//
// Push Back Modified Table
//
args.clear();
args.push_back("-h");
args.push_back(db_mysql_hostname);
args.push_back("-u");
args.push_back(db_mysql_loginname);
args.push_back("-p"+db_mysql_password);
args.push_back(db_mysql_database);
proc=new QProcess(this);
proc->setStandardInputFile(out_filename);
proc->start("mysql",args);
proc->waitForFinished(-1);
delete proc;
//
// Clean Up
//
unlink(filename.toUtf8());
unlink(out_filename.toUtf8());
rmdir(tempdir);
}
void MainObject::RelinkAudio(const QString &srcdir) const
{
QString sql;

7
utils/rddbmgr/rddbmgr.h
View File

@@ -40,8 +40,11 @@ class MainObject : public QObject
//
// check.cpp
//
bool Check(QString *err_msg) const;
void CheckTableAttributes() const;
bool Check(QString *err_msg);
void CheckTableAttributes();
void RewriteTable(const QString &tblname,const QString &old_charset,
const QString &new_charset,
const QString &new_collation);
void RelinkAudio(const QString &srcdir) const;
void CheckOrphanedTracks() const;
void CheckCutCounts() const;