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/*
SPDX-FileCopyrightText: 2018, 2020 Friedrich W. H. Kossebau <kossebau@kde.org>
SPDX-License-Identifier: GPL-2.0-or-later
*/
#include "compileanalyzeutils.h"
// lib
#include <debug.h>
// KDevPlatform
#include <util/path.h>
// KF
#include <KLocalizedString>
// Qt
#include <QStandardPaths>
#include <QUrl>
#include <QFile>
#include <QFileInfo>
#include <QJsonDocument>
#include <QJsonArray>
#include <QJsonObject>
namespace KDevelop
{
namespace Utils
{
QString findExecutable(const QString& fallbackExecutablePath)
{
const QString executablePath = QStandardPaths::findExecutable(fallbackExecutablePath);
return executablePath.isEmpty() ? fallbackExecutablePath : executablePath;
}
QStringList filesFromCompilationDatabase(const KDevelop::Path& buildPath,
const QUrl& urlToCheck, bool allFiles,
QString& error)
{
QStringList result;
const auto commandsFilePath = KDevelop::Path(buildPath, QStringLiteral("compile_commands.json")).toLocalFile();
if (!QFile::exists(commandsFilePath)) {
error = i18n("Compilation database file not found: '%1'", commandsFilePath);
return result;
}
const auto pathToCheck = urlToCheck.toLocalFile();
if (pathToCheck.isEmpty()) {
error = i18n("Nothing to check: compilation database file '%1' contains no matching items.", commandsFilePath);
return result;
}
QFile commandsFile(commandsFilePath);
if (!commandsFile.open(QFile::ReadOnly | QFile::Text)) {
error = i18n("Could not open compilation database file for reading: '%1'", commandsFilePath);
return result;
}
QJsonParseError jsonError;
const auto commandsDocument = QJsonDocument::fromJson(commandsFile.readAll(), &jsonError);
if (jsonError.error) {
error = i18n("JSON error during parsing compilation database file '%1': %2", commandsFilePath, jsonError.errorString());
return result;
}
if (!commandsDocument.isArray()) {
error = i18n("JSON error during parsing compilation database file '%1': document is not an array.", commandsFilePath);
return result;
}
const auto pathToCheckInfo = QFileInfo(pathToCheck);
const bool isPathToCheckAFile = pathToCheckInfo.isFile();
const auto canonicalPathToCheck = pathToCheckInfo.canonicalFilePath();
const auto fileDataArray = commandsDocument.array();
for (const auto& value : fileDataArray) {
if (!value.isObject()) {
continue;
}
const auto entry = value.toObject();
const auto it = entry.find(QLatin1String("file"));
if (it != entry.end()) {
// using the original path from the commands file
// but matching the canonical ones
const auto path = it->toString();
const auto pathInfo = QFileInfo(path);
if (pathInfo.exists()) {
if (allFiles) {
result += path;
} else {
const auto canonicalPath = pathInfo.canonicalFilePath();
if (isPathToCheckAFile) {
if (canonicalPath == canonicalPathToCheck) {
result = QStringList{path};
break;
}
} else if (canonicalPath.startsWith(canonicalPathToCheck)) {
result.append(path);
}
}
}
}
}
if (result.isEmpty()) {
error = i18n("Nothing to check: compilation database file '%1' contains no matching items.", commandsFilePath);
}
return result;
}
}
}
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