ClickHouse/dbms/programs/format/Format.cpp

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#include <iostream>
#include <boost/program_options.hpp>
#include <IO/ReadBufferFromFileDescriptor.h>
#include <IO/ReadHelpers.h>
#include <Parsers/ParserQuery.h>
#include <Parsers/parseQuery.h>
#include <Parsers/formatAST.h>
int mainEntryClickHouseFormat(int argc, char ** argv)
{
using namespace DB;
boost::program_options::options_description desc("Allowed options");
desc.add_options()
("help,h", "produce help message")
("hilite", "add syntax highlight with ANSI terminal escape sequences")
("oneline", "format in single line")
("quiet,q", "just check syntax, no output on success")
;
boost::program_options::variables_map options;
boost::program_options::store(boost::program_options::parse_command_line(argc, argv, desc), options);
if (options.count("help"))
{
std::cout << "Usage: " << argv[0] << " [options] < query" << std::endl;
std::cout << desc << std::endl;
return 1;
}
try
{
bool hilite = options.count("hilite");
bool oneline = options.count("oneline");
bool quiet = options.count("quiet");
if (quiet && (hilite || oneline))
{
std::cerr << "Options 'hilite' or 'oneline' have no sense in 'quiet' mode." << std::endl;
return 2;
}
String query;
ReadBufferFromFileDescriptor in(STDIN_FILENO);
readStringUntilEOF(query, in);
const char * pos = query.data();
const char * end = pos + query.size();
ParserQuery parser(end);
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ASTPtr res = parseQuery(parser, pos, end, "query", 0);
if (!quiet)
{
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formatAST(*res, std::cout, hilite, oneline);
std::cout << std::endl;
}
}
catch (...)
{
std::cerr << getCurrentExceptionMessage(true);
return getCurrentExceptionCode();
}
return 0;
}