minix/external/bsd/atf/dist/atf-run/config.cpp

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//
// Automated Testing Framework (atf)
//
// Copyright (c) 2007 The NetBSD Foundation, 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:
// 1. Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// 2. 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.
//
// THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. 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 FOUNDATION 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 <fstream>
#include <vector>
#include "atf-c/defs.h"
#include "atf-c++/config.hpp"
#include "atf-c++/detail/env.hpp"
#include "atf-c++/detail/fs.hpp"
#include "atf-c++/detail/sanity.hpp"
#include "atf-c++/detail/parser.hpp"
#include "config.hpp"
namespace impl = atf::atf_run;
namespace detail = atf::atf_run::detail;
namespace {
namespace atf_config {
static const atf::parser::token_type eof_type = 0;
static const atf::parser::token_type nl_type = 1;
static const atf::parser::token_type text_type = 2;
static const atf::parser::token_type dblquote_type = 3;
static const atf::parser::token_type equal_type = 4;
static const atf::parser::token_type hash_type = 5;
class tokenizer : public atf::parser::tokenizer< std::istream > {
public:
tokenizer(std::istream& is, size_t curline) :
atf::parser::tokenizer< std::istream >
(is, true, eof_type, nl_type, text_type, curline)
{
add_delim('=', equal_type);
add_delim('#', hash_type);
add_quote('"', dblquote_type);
}
};
} // namespace atf_config
class config_reader : public detail::atf_config_reader {
atf::tests::vars_map m_vars;
void
got_var(const std::string& var, const std::string& name)
{
m_vars[var] = name;
}
public:
config_reader(std::istream& is) :
atf_config_reader(is)
{
}
const atf::tests::vars_map&
get_vars(void)
const
{
return m_vars;
}
};
template< class K, class V >
static
void
merge_maps(std::map< K, V >& dest, const std::map< K, V >& src)
{
for (typename std::map< K, V >::const_iterator iter = src.begin();
iter != src.end(); iter++)
dest[(*iter).first] = (*iter).second;
}
static
void
merge_config_file(const atf::fs::path& config_path,
atf::tests::vars_map& config)
{
std::ifstream is(config_path.c_str());
if (is) {
config_reader reader(is);
reader.read();
merge_maps(config, reader.get_vars());
}
}
static
std::vector< atf::fs::path >
get_config_dirs(void)
{
std::vector< atf::fs::path > dirs;
dirs.push_back(atf::fs::path(atf::config::get("atf_confdir")));
if (atf::env::has("HOME"))
dirs.push_back(atf::fs::path(atf::env::get("HOME")) / ".atf");
return dirs;
}
} // anonymous namespace
detail::atf_config_reader::atf_config_reader(std::istream& is) :
m_is(is)
{
}
detail::atf_config_reader::~atf_config_reader(void)
{
}
void
detail::atf_config_reader::got_var(
const std::string& var ATF_DEFS_ATTRIBUTE_UNUSED,
const std::string& val ATF_DEFS_ATTRIBUTE_UNUSED)
{
}
void
detail::atf_config_reader::got_eof(void)
{
}
void
detail::atf_config_reader::read(void)
{
using atf::parser::parse_error;
using namespace atf_config;
std::pair< size_t, atf::parser::headers_map > hml =
atf::parser::read_headers(m_is, 1);
atf::parser::validate_content_type(hml.second,
"application/X-atf-config", 1);
tokenizer tkz(m_is, hml.first);
atf::parser::parser< tokenizer > p(tkz);
for (;;) {
try {
atf::parser::token t = p.expect(eof_type, hash_type, text_type,
nl_type,
"eof, #, new line or text");
if (t.type() == eof_type)
break;
if (t.type() == hash_type) {
(void)p.rest_of_line();
t = p.expect(nl_type, "new line");
} else if (t.type() == text_type) {
std::string name = t.text();
t = p.expect(equal_type, "equal sign");
t = p.expect(text_type, "word or quoted string");
ATF_PARSER_CALLBACK(p, got_var(name, t.text()));
t = p.expect(nl_type, hash_type, "new line or comment");
if (t.type() == hash_type) {
(void)p.rest_of_line();
t = p.expect(nl_type, "new line");
}
} else if (t.type() == nl_type) {
} else
UNREACHABLE;
} catch (const parse_error& pe) {
p.add_error(pe);
p.reset(nl_type);
}
}
ATF_PARSER_CALLBACK(p, got_eof());
}
atf::tests::vars_map
impl::merge_configs(const atf::tests::vars_map& lower,
const atf::tests::vars_map& upper)
{
atf::tests::vars_map merged = lower;
merge_maps(merged, upper);
return merged;
}
atf::tests::vars_map
impl::read_config_files(const std::string& test_suite_name)
{
atf::tests::vars_map config;
const std::vector< atf::fs::path > dirs = get_config_dirs();
for (std::vector< atf::fs::path >::const_iterator iter = dirs.begin();
iter != dirs.end(); iter++) {
merge_config_file((*iter) / "common.conf", config);
merge_config_file((*iter) / (test_suite_name + ".conf"), config);
}
return config;
}