92 lines
2.5 KiB
C++
92 lines
2.5 KiB
C++
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/*
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* synergy -- mouse and keyboard sharing utility
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* Copyright (C) 2024 Symless Ltd.
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*
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* This package is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* found in the file LICENSE that should have accompanied this file.
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*
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* This package is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "dotenv.h"
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#include <QDebug>
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#include <QFile>
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#include <QProcess>
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#include <QProcessEnvironment>
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#include <QString>
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#include <QTextStream>
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namespace synergy::gui {
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QPair<QString, QString> getPair(const QString &line);
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/**
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* @brief A _very_ basic Qt .env file parser.
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*
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* This function re-invents the wheel to save adding a library dependency.
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* It does not support many things that a proper .env parser would, such as
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* trailing comments, escaping characters, multiline values, etc.
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*
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* If this function is not sufficient, replace it with a library such as:
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* https://github.com/adeharo9/cpp-dotenv
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*/
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void dotenv(const QString &filePath) {
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QFile file(filePath);
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if (!file.open(QIODevice::ReadOnly | QIODevice::Text)) {
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qDebug("no .env file in current dir");
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return;
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}
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qDebug("loading env vars from: %s", filePath.toUtf8().constData());
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QTextStream in(&file);
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while (!in.atEnd()) {
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QString line = in.readLine().trimmed();
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if (line.startsWith('#'))
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continue;
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auto [key, value] = getPair(line);
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if (key.isEmpty() || value.isEmpty())
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continue;
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const auto keyBytes = key.toUtf8();
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const auto valueBytes = value.toUtf8();
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const auto &key_c = keyBytes.constData();
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const auto &value_c = valueBytes.constData();
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qDebug("%s=%s", key_c, value_c);
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qputenv(keyBytes, valueBytes);
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}
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}
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QString stripQuotes(const QString &value) {
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QString result = value;
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if (result.startsWith('"') && result.endsWith('"')) {
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result = result.mid(1, result.length() - 2);
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}
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return result;
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}
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QPair<QString, QString> getPair(const QString &line) {
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auto pos = line.indexOf('=');
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if (pos == -1) {
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return QPair<QString, QString>("", "");
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}
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QString key = line.left(pos);
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QString value = line.mid(pos + 1);
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return QPair<QString, QString>(key.trimmed(), stripQuotes(value.trimmed()));
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}
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} // namespace synergy::gui
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