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#include "config.h"
#include "binlog_encoding.h"
#include "binary_log.h"
#include "ioutil.h"
#include <google/protobuf/io/zero_copy_stream_impl.h>
#include <google/protobuf/io/coded_stream.h>
#include <iostream>
#include <sstream>
#include <string>
#include <map>
#include <getopt.h>
#include <sys/stat.h>
#include <fcntl.h>
using namespace google::protobuf::io;
typedef std::map<std::string,std::string> Assign;
void print_usage_and_exit(char *prog) {
using std::cerr;
const char *name= strrchr(prog, '/');
if (name)
++name;
else
name= "binlog_writer";
cerr << "Usage: " << name << " <options> <query>\n"
<< " --output name Append query to file <name> (default: 'log.bin')\n"
<< " --set var=val Set value of user variable for query\n"
<< " --trans-id <id> Set transaction id to <id>\n"
<< std::flush;
exit(1);
}
void
write_query(CodedOutputStream* out,
unsigned long trans_id,
const std::string& query,
const Assign& assign)
{
BinaryLog::Query *message = new BinaryLog::Query;
{
BinaryLog::Header *header= message->mutable_header();
header->set_seqno(time(NULL));
header->set_server_id(1);
header->set_trans_id(trans_id);
}
message->set_query(query);
for (Assign::const_iterator ii= assign.begin() ;
ii != assign.end() ;
++ii )
{
BinaryLog::Query::Variable *var= message->add_variable();
var->set_name(ii->first);
var->set_value(ii->second);
}
BinaryLog::Event event(BinaryLog::Event::QUERY, message);
event.write(out);
}
int main(int argc, char *argv[])
{
using std::ios;
GOOGLE_PROTOBUF_VERIFY_VERSION;
static struct option options[] = {
{ "set", 1 /* has_arg */, NULL, 0 },
{ "trans-id", 1 /* has_arg */, NULL, 0 },
{ "output", 1 /* has_arg */, NULL, 0 },
{ 0, 0, 0, 0 }
};
Assign assign;
unsigned long trans_id= 0;
const char* file_name= "log.bin";
int ch, option_index;
while ((ch= getopt_long(argc, argv, "", options, &option_index)) != -1) {
if (ch == '?')
print_usage_and_exit(argv[0]);
switch (option_index) {
case 0: // --set
{
// Split the supplied string at the first '='
char *end= optarg + strlen(optarg);
char *pos= strchr(optarg, '=');
if (!pos)
pos= end;
const std::string key(optarg, pos);
const std::string value(pos == end ? end : pos+1, end);
assign[key]= value;
}
case 1: // --trans-id
trans_id= strtoul(optarg, NULL, 0);
break;
case 2: // --output
file_name= optarg;
break;
}
}
if (optind >= argc)
print_usage_and_exit(argv[0]);
int outfd= open(file_name, O_WRONLY | O_CREAT | O_APPEND, 0644);
if (outfd < 0)
{
perror("open");
exit(1);
}
ZeroCopyOutputStream* raw_output = new FileOutputStream(outfd);
CodedOutputStream* coded_output = new CodedOutputStream(raw_output);
std::stringstream sout;
sout << ioutil::join(" ", &argv[optind], &argv[argc]);
write_query(coded_output, trans_id, sout.str(), assign);
delete coded_output;
delete raw_output;
close(outfd);
exit(0);
}
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