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/**************************************************************************
* Copyright (C) 2010-2013 by Eugene V. Lyubimkin *
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License *
* (version 3 or above) as published by the Free Software Foundation. *
* *
* This program is distributed in the hope that it will be useful, *
* but WITHOUT ANY WARRANTY; without even the implied warranty of *
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
* GNU General Public License for more details. *
* *
* You should have received a copy of the GNU GPL *
* along with this program; if not, write to the *
* Free Software Foundation, Inc., *
* 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA *
**************************************************************************/
#include <functional>
#include <common/regex.hpp>
#include <cupt/versionstring.hpp>
#include "common.hpp"
#include "selectors.hpp"
#include "functionselectors.hpp"
const BinaryPackage* getBinaryPackage(const Cache& cache, const string& packageName, bool throwOnError)
{
auto result = cache.getBinaryPackage(packageName);
if (!result && throwOnError)
{
fatal2(__("unable to find the binary package '%s'"), packageName);
}
return result;
}
const SourcePackage* getSourcePackage(const Cache& cache, const string& packageName, bool throwOnError)
{
auto result = cache.getSourcePackage(packageName);
if (!result && throwOnError)
{
fatal2(__("unable to find the source package '%s'"), packageName);
}
return result;
}
string convertWildcardedExpressionToFse(const string& expression)
{
auto getPackageNameFse = [](const string& packageNameExpression)
{
return format2("package:name(%s)", globToRegexString(packageNameExpression));
};
auto delimiterPosition = expression.find_first_of("/=");
if (delimiterPosition != string::npos)
{
string additionalFseRule;
string packageGlobExpression = expression.substr(0, delimiterPosition);
string remainder = expression.substr(delimiterPosition+1);
if (expression[delimiterPosition] == '/') // distribution
{
static const sregex distributionExpressionRegex = sregex::compile("[a-z-]+");
static smatch m;
if (!regex_match(remainder, m, distributionExpressionRegex))
{
fatal2(__("bad distribution '%s' requested, use archive or codename"), remainder);
}
additionalFseRule = format2("or(release:archive(%s), release:codename(%s))", remainder, remainder);
}
else // exact version string
{
checkVersionString(remainder);
additionalFseRule = format2("version(%s)", globToRegexString(remainder));
}
return format2("%s & %s", getPackageNameFse(packageGlobExpression), additionalFseRule);
}
else
{
return getPackageNameFse(expression);
}
}
bool isFunctionExpression(const string& expression)
{
return (expression.find_first_of("()") != string::npos);
}
template < typename VersionType >
static vector< const VersionType* > __convert_version_type(list< const Version* >&& source)
{
vector< const VersionType* > result;
for (const auto& oldVersion: source)
{
auto version = dynamic_cast< const VersionType* >(oldVersion);
if (!version)
{
fatal2i("version has a wrong type");
}
result.push_back(version);
}
return result;
}
template < typename VersionType, typename QueryProcessor >
vector< const VersionType* > __select_using_function(const Cache& cache,
const string& expression, QueryProcessor queryProcessor, bool binary, bool throwOnEmptyResult)
{
FunctionalSelector selector(cache);
auto query = selector.parseQuery(expression, binary);
auto result = __convert_version_type< VersionType >((selector.*queryProcessor)(*query));
if (throwOnEmptyResult && result.empty())
{
fatal2(__("the function expression '%s' selected nothing"), expression);
}
return std::move(result);
}
string getFse(const string& expression)
{
if (isFunctionExpression(expression))
{
return expression; // already is FSE
}
else
{
return convertWildcardedExpressionToFse(expression);
}
}
template < typename QueryProcessor >
vector< const SourceVersion* > selectBySourceFse(const Cache& cache,
const string& fse, QueryProcessor queryProcessor, bool throwOnError)
{
auto result = __select_using_function< SourceVersion >(cache, fse, queryProcessor, false, false);
if (result.empty())
{
string binaryFromSourceFse = format2("binary-to-source(%s)", fse);
result = __select_using_function< SourceVersion >(cache, binaryFromSourceFse, queryProcessor, false, throwOnError);
}
return result;
}
vector< const BinaryVersion* > selectBinaryVersionsWildcarded(const Cache& cache,
const string& packageExpression, bool throwOnError)
{
return __select_using_function< BinaryVersion >(cache, getFse(packageExpression),
&FunctionalSelector::selectBestVersions, true, throwOnError);
}
vector< const SourceVersion* > selectSourceVersionsWildcarded(const Cache& cache,
const string& packageExpression, bool throwOnError)
{
return selectBySourceFse(cache, getFse(packageExpression),
&FunctionalSelector::selectBestVersions, throwOnError);
}
vector< const BinaryVersion* > selectAllBinaryVersionsWildcarded(const Cache& cache,
const string& packageExpression, bool throwOnError)
{
return __select_using_function< BinaryVersion >(cache, getFse(packageExpression),
&FunctionalSelector::selectAllVersions, true, throwOnError);
}
vector< const SourceVersion* > selectAllSourceVersionsWildcarded(const Cache& cache,
const string& packageExpression, bool throwOnError)
{
return selectBySourceFse(cache, getFse(packageExpression),
&FunctionalSelector::selectAllVersions, throwOnError);
}
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