minix/external/bsd/kyua-cli/dist/cli/cmd_db_exec.cpp
Lionel Sambuc 11be35a165 Importing NetBSD "Kyua" test framework
To do so, a few dependencies have been imported:

 * external/bsd/lutok
 * external/mit/lua
 * external/public-domain/sqlite
 * external/public-domain/xz

The Kyua framework is the new generation of ATF (Automated Test
Framework), it is composed of:

 * external/bsd/atf
 * external/bsd/kyua-atf-compat
 * external/bsd/kyua-cli
 * external/bsd/kyua-tester
 * tests

Kyua/ATF being written in C++, it depends on libstdc++ which is
provided by GCC. As this is not part of the sources, Kyua is only
compiled when the native GCC utils are installed.

To install Kyua do the following:

 * In a cross-build enviromnent, add the following to the build.sh
   commandline: -V MKBINUTILS=yes -V MKGCCCMDS=yes

WARNING:
  At this point the import is still experimental, and not supported
  on native builds (a.k.a make build).

Change-Id: I26aee23c5bbd2d64adcb7c1beb98fe0d479d7ada
2013-07-23 20:43:41 +02:00

186 lines
5.7 KiB
C++

// Copyright 2011 Google Inc.
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above copyright
// notice, this list of conditions and the following disclaimer in the
// documentation and/or other materials provided with the distribution.
// * Neither the name of Google Inc. nor the names of its contributors
// may be used to endorse or promote products derived from this software
// without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#include "cli/cmd_db_exec.hpp"
#include <algorithm>
#include <cstdlib>
#include <iterator>
#include <sstream>
#include <string>
#include "cli/common.ipp"
#include "store/backend.hpp"
#include "utils/defs.hpp"
#include "utils/format/macros.hpp"
#include "utils/sanity.hpp"
#include "utils/sqlite/database.hpp"
#include "utils/sqlite/exceptions.hpp"
#include "utils/sqlite/statement.hpp"
namespace cmdline = utils::cmdline;
namespace config = utils::config;
namespace sqlite = utils::sqlite;
using cli::cmd_db_exec;
namespace {
/// Concatenates a vector into a string using ' ' as a separator.
///
/// \param args The objects to join. This cannot be empty.
///
/// \return The concatenation of all the objects in the set.
static std::string
flatten_args(const cmdline::args_vector& args)
{
std::ostringstream output;
std::copy(args.begin(), args.end(),
std::ostream_iterator< std::string >(output, " "));
std::string result = output.str();
result.erase(result.end() - 1);
return result;
}
} // anonymous namespace
/// Formats a particular cell of a statement result.
///
/// \param stmt The statement whose cell to format.
/// \param index The index of the cell to format.
///
/// \return A textual representation of the cell.
std::string
cli::format_cell(sqlite::statement& stmt, const int index)
{
switch (stmt.column_type(index)) {
case sqlite::type_blob: {
const sqlite::blob blob = stmt.column_blob(index);
return F("BLOB of %s bytes") % blob.size;
}
case sqlite::type_float:
return F("%s") % stmt.column_double(index);
case sqlite::type_integer:
return F("%s") % stmt.column_int64(index);
case sqlite::type_null:
return "NULL";
case sqlite::type_text:
return stmt.column_text(index);
}
UNREACHABLE;
}
/// Formats the column names of a statement for output as CSV.
///
/// \param stmt The statement whose columns to format.
///
/// \return A comma-separated list of column names.
std::string
cli::format_headers(sqlite::statement& stmt)
{
std::string output;
int i = 0;
for (; i < stmt.column_count() - 1; ++i)
output += stmt.column_name(i) + ',';
output += stmt.column_name(i);
return output;
}
/// Formats a row of a statement for output as CSV.
///
/// \param stmt The statement whose current row to format.
///
/// \return A comma-separated list of values.
std::string
cli::format_row(sqlite::statement& stmt)
{
std::string output;
int i = 0;
for (; i < stmt.column_count() - 1; ++i)
output += cli::format_cell(stmt, i) + ',';
output += cli::format_cell(stmt, i);
return output;
}
/// Default constructor for cmd_db_exec.
cmd_db_exec::cmd_db_exec(void) : cli_command(
"db-exec", "sql_statement", 1, -1,
"Executes an arbitrary SQL statement in the store database and prints "
"the resulting table")
{
add_option(store_option);
add_option(cmdline::bool_option("no-headers", "Do not show headers in the "
"output table"));
}
/// Entry point for the "db-exec" subcommand.
///
/// \param ui Object to interact with the I/O of the program.
/// \param cmdline Representation of the command line to the subcommand.
/// \param unused_user_config The runtime configuration of the program.
///
/// \return 0 if everything is OK, 1 if the statement is invalid or if there is
/// any other problem.
int
cmd_db_exec::run(cmdline::ui* ui, const cmdline::parsed_cmdline& cmdline,
const config::tree& UTILS_UNUSED_PARAM(user_config))
{
try {
store::backend backend = store::backend::open_rw(
cli::store_path(cmdline));
sqlite::statement stmt = backend.database().create_statement(
flatten_args(cmdline.arguments()));
if (stmt.step()) {
if (!cmdline.has_option("no-headers"))
ui->out(cli::format_headers(stmt));
do
ui->out(cli::format_row(stmt));
while (stmt.step());
}
return EXIT_SUCCESS;
} catch (const sqlite::error& e) {
cmdline::print_error(ui, F("SQLite error: %s") % e.what());
return EXIT_FAILURE;
}
}