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// Copyright (C) 2017 Przemyslaw Gorszkowski <pgorszkowski@gmail.com>.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only WITH Qt-GPL-exception-1.0
#include "findinfilessilversearcher.h"
#include "silversearcherparser.h"
#include "silversearchertr.h"
#include <texteditor/findinfiles.h>
#include <utils/async.h>
#include <utils/environment.h>
#include <utils/qtcassert.h>
#include <utils/qtcprocess.h>
#include <utils/qtcsettings.h>
#include <QHBoxLayout>
#include <QLabel>
#include <QLineEdit>
using namespace TextEditor;
using namespace Utils;
namespace SilverSearcher {
const char s_searchOptionsString[] = "SearchOptionsString";
static QString convertWildcardToRegex(const QString &wildcard)
{
static const QString s_metaCharacters("+()^$.{}[]|\\");
QString regex;
const int wildcardSize = wildcard.size();
regex.append('^');
for (int i = 0; i < wildcardSize; ++i) {
const QChar ch = wildcard[i];
if (ch == '*')
regex.append(".*");
else if (ch == '?')
regex.append('.');
else if (s_metaCharacters.indexOf(ch) != -1)
regex.append('\\' + ch);
else
regex.append(ch);
}
regex.append('$');
return regex;
}
static bool isSilverSearcherAvailable()
{
Process silverSearcherProcess;
silverSearcherProcess.setCommand({"ag", {"--version"}});
silverSearcherProcess.setEnvironment(Environment::systemEnvironment());
silverSearcherProcess.start();
using namespace std::chrono_literals;
return silverSearcherProcess.waitForFinished(1s)
&& silverSearcherProcess.cleanedStdOut().contains("ag version");
}
static void runSilverSeacher(QPromise<SearchResultItems> &promise,
const FileFindParameters ¶meters, const QString &searchOptions)
{
const auto setupProcess = [parameters, searchOptions](Process &process) {
QStringList arguments = {"--parallel", "--ackmate"};
if (parameters.flags & FindCaseSensitively)
arguments << "-s";
else
arguments << "-i";
if (parameters.flags & FindWholeWords)
arguments << "-w";
if (!(parameters.flags & FindRegularExpression))
arguments << "-Q";
for (const QString &filter : std::as_const(parameters.exclusionFilters))
arguments << "--ignore" << filter;
QString nameFiltersAsRegExp;
for (const QString &filter : std::as_const(parameters.nameFilters))
nameFiltersAsRegExp += QString("(%1)|").arg(convertWildcardToRegex(filter));
nameFiltersAsRegExp.remove(nameFiltersAsRegExp.length() - 1, 1);
arguments << "-G" << nameFiltersAsRegExp;
if (!searchOptions.isEmpty())
arguments << searchOptions.split(' ');
arguments << "--" << parameters.text << parameters.searchDir.normalizedPathName().toUrlishString();
process.setCommand({"ag", arguments});
process.setEnvironment(Environment::systemEnvironment());
};
FilePath lastFilePath;
const auto outputParser = [&lastFilePath](const QFuture<void> &future, const QString &input,
const std::optional<QRegularExpression> ®Exp) {
return SilverSearcher::parse(future, input, regExp, &lastFilePath);
};
TextEditor::searchInProcessOutput(promise, parameters, setupProcess, outputParser);
}
class FindInFilesSilverSearcher final : public SearchEngine
{
public:
FindInFilesSilverSearcher()
{
m_widget = new QWidget;
auto layout = new QHBoxLayout(m_widget);
layout->setContentsMargins(0, 0, 0, 0);
m_searchOptionsLineEdit = new QLineEdit;
m_searchOptionsLineEdit->setPlaceholderText(Tr::tr("Search Options (optional)"));
layout->addWidget(m_searchOptionsLineEdit);
FindInFiles *findInFiles = FindInFiles::instance();
QTC_ASSERT(findInFiles, return);
findInFiles->addSearchEngine(this);
// TODO: Make disabled by default and run isSilverSearcherAvailable asynchronously
setEnabled(isSilverSearcherAvailable());
if (!isEnabled()) {
QLabel *label = new QLabel(Tr::tr("Silver Searcher is not available on the system."));
label->setStyleSheet("QLabel { color : red; }");
layout->addWidget(label);
}
}
QString title() const final { return "Silver Searcher"; }
QString toolTip() const final { return {}; }
QWidget *widget() const final { return m_widget; }
void readSettings(const Store &s) final
{
m_searchOptionsLineEdit->setText(s.value(s_searchOptionsString).toString());
}
void writeSettings(Store &s) const final
{
if (!m_searchOptionsLineEdit->text().isEmpty())
s.insert(s_searchOptionsString, m_searchOptionsLineEdit->text());
}
SearchExecutor searchExecutor() const final
{
return [searchOptions = m_searchOptionsLineEdit->text()](const FileFindParameters ¶meters) {
return Utils::asyncRun(runSilverSeacher, parameters, searchOptions);
};
}
private:
FilePath m_directorySetting;
QPointer<QWidget> m_widget;
QPointer<QLineEdit> m_searchOptionsLineEdit;
};
void setupFindInFilesSilverSearcher()
{
static FindInFilesSilverSearcher theFindInFilesSilverSearcher;
}
} // namespace SilverSearcher
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