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/*
* Copyright (C) 2014 Aaron Seigo <aseigo@kde.org>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) version 3, or any
* later version accepted by the membership of KDE e.V. (or its
* successor approved by the membership of KDE e.V.), which shall
* act as a proxy defined in Section 6 of version 3 of the license.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library. If not, see <http://www.gnu.org/licenses/>.
*/
#include "state.h"
#include <QDebug>
#include <QDir>
#include <QJsonDocument>
#include <QObject>
#include <iostream>
#ifdef HAVE_LIBGIT2
#include <git2.h>
#endif
static const QString configFileName("hawd.conf");
namespace HAWD
{
State::State(const QString &_configPath)
: m_valid(true)
{
m_commitHash[0] = '\0';
QString configPath = _configPath;
if (configPath.isEmpty()) {
QDir dir;
while (!dir.exists(configFileName) && dir.cdUp()) { }
if (dir.exists(configFileName)) {
configPath = dir.absoluteFilePath(configFileName);
}
if (configPath.isEmpty()) {
std::cerr << QObject::tr("Could not find hawd configuration. A hawd.conf file must be in the current directory or in a directory above it.").toStdString() << std::endl;
m_valid = false;
return;
}
}
QFile configFile(configPath);
if (configFile.open(QIODevice::ReadOnly)) {
QJsonParseError error;
QJsonDocument config = QJsonDocument::fromJson(configFile.readAll(), &error);
if (config.isNull()) {
std::cerr << QObject::tr("Error parsing config file at %1").arg(configPath).toStdString() << std::endl;
std::cerr << '\t' << error.errorString().toStdString();
} else {
m_configData = config.object();
}
}
}
bool State::isValid() const
{
return m_valid;
}
QString tildeExpand(QString path)
{
if (path.isEmpty() || path.at(0) != '~') {
return path;
}
return path.replace('~', QDir::homePath());
}
QString State::resultsPath() const
{
return tildeExpand(configValue("results").toString());
}
QString State::projectPath() const
{
return tildeExpand(configValue("project").toString());
}
DatasetDefinition State::datasetDefinition(const QString &name) const
{
return DatasetDefinition(projectPath() + '/' + name);
}
QVariant State::configValue(const QString &key) const
{
return m_configData.value(key).toVariant();
}
const char *State::commitHash() const
{
if (isValid() && m_commitHash[0] == '\0') {
const_cast<State *>(this)->findGitHash();
}
return m_commitHash;
}
void State::findGitHash()
{
#ifdef HAVE_LIBGIT2
git_libgit2_init();
git_buf root = {0};
int error = git_repository_discover(&root, projectPath().toStdString().data(), 0, NULL);
if (!error) {
git_repository *repo = NULL;
int error = git_repository_open(&repo, root.ptr);
if (!error) {
git_oid oid;
error = git_reference_name_to_id(&oid, repo, "HEAD" );
if (!error) {
git_oid_tostr(m_commitHash, sizeof(m_commitHash), &oid);
}
}
git_repository_free(repo);
}
git_buf_free(&root);
git_libgit2_shutdown();
#endif
}
} // namespace HAWD
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