looqs/shared/common.cpp
Albert S def766ba67 shared: common: On first start, try to set a rasonable pdfviewer value
May not be users default, but better than nothing for now.

Issue: #27
2022-04-25 23:01:11 +02:00

162 lines
3.8 KiB
C++

#include <QProcessEnvironment>
#include <QSettings>
#include <QStandardPaths>
#include <QDir>
#include <QSqlDatabase>
#include <QSqlQuery>
#include <QSqlError>
#include <QTextStream>
#include <QDebug>
#include "looqsgeneralexception.h"
#include "common.h"
#include "dbmigrator.h"
#include "databasefactory.h"
#include "logger.h"
#define SETTINGS_KEY_DBPATH "dbpath"
#define SETTINGS_KEY_FIRSTRUN "firstrun"
#define SETTINGS_KEY_IPCSOCKETPATH "ipcsocketpath"
#define SETTINGS_KEY_PDFVIEWER "pdfviewer"
inline void initResources()
{
Q_INIT_RESOURCE(migrations);
}
bool Common::initSqliteDatabase(QString path)
{
QSqlDatabase db = QSqlDatabase::addDatabase("QSQLITE");
db.setDatabaseName(path);
if(!db.open())
{
qDebug() << "failed to open database: " << path;
return false;
}
initResources();
DBMigrator migrator{db};
migrator.performMigrations();
db.close();
return true;
}
QString Common::findInPath(QString needle)
{
QStringList results;
QString pathVar = QProcessEnvironment::systemEnvironment().value("PATH", "/usr/bin/:/bin/:");
QStringList paths = pathVar.split(":");
for(const QString &path : paths)
{
// TODO: can pass ../ but so be it for now.
QFileInfo info{path + "/" + needle};
if(info.exists())
{
return info.absoluteFilePath();
}
}
return "";
}
void Common::setPdfViewer()
{
QString value;
/* TODO: well, we should query this probably from xdg*/
QString okularPath = findInPath("okular");
QString evincePath = findInPath("evince");
QString qpdfviewPath = findInPath("qpdfview");
if(okularPath != "")
{
value = okularPath + " %f -p %p";
}
else if(evincePath != "")
{
value = evincePath + "-i %p %f";
}
else if(qpdfviewPath != "")
{
value = qpdfviewPath + "%f#%p";
}
QSettings settings;
if(value != "")
{
settings.setValue(SETTINGS_KEY_PDFVIEWER, value);
}
}
void Common::ensureConfigured()
{
QSettings settings;
QVariant firstRun = settings.value(SETTINGS_KEY_FIRSTRUN);
if(!firstRun.isValid())
{
QString dbpath = QStandardPaths::writableLocation(QStandardPaths::AppLocalDataLocation);
QDir dir;
if(!dir.exists(dbpath))
{
if(!dir.mkpath(dbpath))
{
throw LooqsGeneralException("Failed to create dbpath directory");
}
}
dbpath += "/looqs.sqlite";
if(!initSqliteDatabase(dbpath))
{
throw LooqsGeneralException("Failed to initialize sqlite database");
}
settings.setValue(SETTINGS_KEY_FIRSTRUN, false);
settings.setValue(SETTINGS_KEY_DBPATH, dbpath);
setPdfViewer();
}
else
{
QString dbpath = databasePath();
if(!QFile::exists(dbpath))
{
throw LooqsGeneralException("Database " + dbpath + " was not found");
}
DatabaseFactory factory{dbpath};
auto db = factory.forCurrentThread();
DBMigrator migrator{db};
if(migrator.migrationNeeded())
{
QFile out;
out.open(stderr, QIODevice::WriteOnly);
Logger migrationLogger{&out};
migrationLogger << "Database is being upgraded, please be patient..." << Qt::endl;
QObject::connect(&migrator, &DBMigrator::migrationDone,
[&migrationLogger](uint32_t migration)
{ migrationLogger << "Progress: Successfully migrated to: " << migration << Qt::endl; });
migrator.performMigrations();
migrationLogger << "Database upgraded successfully" << Qt::endl;
}
}
}
void Common::setupAppInfo()
{
QCoreApplication::setOrganizationName("quitesimple.org");
QCoreApplication::setOrganizationDomain("quitesimple.org");
QCoreApplication::setApplicationName("looqs");
}
QString Common::databasePath()
{
QString env = QProcessEnvironment::systemEnvironment().value("LOOQS_DB_OVERRIDE");
if(env == "")
{
QSettings settings;
return settings.value(SETTINGS_KEY_DBPATH).toString();
}
return env;
}
QString Common::ipcSocketPath()
{
QSettings settings;
return settings.value(SETTINGS_KEY_IPCSOCKETPATH, "/tmp/looqs-spawner").toString();
}