SilverSearcher: Do some cleanup

Remove unneeded includes.
Code style corrections.
Make global functions in cpp static.
Fix const correctness.
Fix nameFiltersAsRegExp variable name.
Remove unneeded d'tor.

Change-Id: Ia8aef3701bc8853905a3661242b33351ce319004
Reviewed-by: <github-actions-qt-creator@cristianadam.eu>
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
Reviewed-by: Orgad Shaneh <orgads@gmail.com>

src/plugins/silversearcher/findinfilessilversearcher.cpp

@@ -3,12 +3,8 @@
 
 #include "findinfilessilversearcher.h"
 
-#include <aggregation/aggregate.h>
 #include <texteditor/findinfiles.h>
-#include <utils/algorithm.h>
 #include <utils/async.h>
-#include <utils/environment.h>
-#include <utils/fileutils.h>
 #include <utils/process.h>
 #include <utils/qtcassert.h>
 
@@ -25,11 +21,8 @@ using namespace TextEditor;
 using namespace Utils;
 
 namespace {
-const QLatin1String silverSearcherName("Silver Searcher");
-
-const QString metacharacters = "+()^$.{}[]|\\";
-
-const QString SearchOptionsString = "SearchOptionsString";
+const QLatin1String s_metaCharacters = QLatin1String("+()^$.{}[]|\\");
+const QLatin1String s_searchOptionsString = QLatin1String("SearchOptionsString");
 
 class SilverSearcherSearchOptions
 {
@@ -37,43 +30,37 @@ public:
     QString searchOptions;
 };
 
-QString convertWildcardToRegex(const QString &wildcard)
+static QString convertWildcardToRegex(const QString &wildcard)
 {
     QString regex;
     const int wildcardSize = wildcard.size();
     regex.append('^');
     for (int i = 0; i < wildcardSize; ++i) {
         const QChar ch = wildcard[i];
-        if (ch == '*') {
+        if (ch == '*')
             regex.append(".*");
-        } else if (ch == '?') {
+        else if (ch == '?')
             regex.append('.');
-        } else if (metacharacters.indexOf(ch) != -1) {
-            regex.append('\\');
+        else if (s_metaCharacters.indexOf(ch) != -1)
+            regex.append('\\' + ch);
+        else
             regex.append(ch);
-        } else {
-            regex.append(ch);
-        }
     }
     regex.append('$');
-
     return regex;
 }
 
-bool isSilverSearcherAvailable()
+static bool isSilverSearcherAvailable()
 {
     Process silverSearcherProcess;
     silverSearcherProcess.setCommand({"ag", {"--version"}});
     silverSearcherProcess.start();
-    if (silverSearcherProcess.waitForFinished(1000)) {
-        if (silverSearcherProcess.cleanedStdOut().contains("ag version"))
-            return true;
+    return silverSearcherProcess.waitForFinished(1000)
+        && silverSearcherProcess.cleanedStdOut().contains("ag version");
 }
 
-    return false;
-}
-
-void runSilverSeacher(QPromise<SearchResultItems> &promise, FileFindParameters parameters)
+static void runSilverSeacher(QPromise<SearchResultItems> &promise,
+                             const FileFindParameters &parameters)
 {
     const FilePath directory = FilePath::fromUserInput(parameters.additionalParameters.toString());
     QStringList arguments = {"--parallel", "--ackmate"};
@@ -92,14 +79,14 @@ void runSilverSeacher(QPromise<SearchResultItems> &promise, FileFindParameters p
     for (const QString &filter : std::as_const(parameters.exclusionFilters))
         arguments << "--ignore" << filter;
 
-    QString nameFiltersAsRegex;
+    QString nameFiltersAsRegExp;
     for (const QString &filter : std::as_const(parameters.nameFilters))
-        nameFiltersAsRegex += QString("(%1)|").arg(convertWildcardToRegex(filter));
-    nameFiltersAsRegex.remove(nameFiltersAsRegex.length() - 1, 1);
+        nameFiltersAsRegExp += QString("(%1)|").arg(convertWildcardToRegex(filter));
+    nameFiltersAsRegExp.remove(nameFiltersAsRegExp.length() - 1, 1);
 
-    arguments << "-G" << nameFiltersAsRegex;
+    arguments << "-G" << nameFiltersAsRegExp;
 
-    SilverSearcherSearchOptions params = parameters.searchEngineParameters
+    const SilverSearcherSearchOptions params = parameters.searchEngineParameters
                                                    .value<SilverSearcherSearchOptions>();
     if (!params.searchOptions.isEmpty())
         arguments << params.searchOptions.split(' ');
@@ -150,6 +137,7 @@ FindInFilesSilverSearcher::FindInFilesSilverSearcher(QObject *parent)
     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."));
@@ -158,10 +146,6 @@ FindInFilesSilverSearcher::FindInFilesSilverSearcher(QObject *parent)
     }
 }
 
-FindInFilesSilverSearcher::~FindInFilesSilverSearcher()
-{
-}
-
 QVariant FindInFilesSilverSearcher::parameters() const
 {
     SilverSearcherSearchOptions silverSearcherSearchOptions;
@@ -171,12 +155,12 @@ QVariant FindInFilesSilverSearcher::parameters() const
 
 QString FindInFilesSilverSearcher::title() const
 {
-    return silverSearcherName;
+    return "Silver Searcher";
 }
 
 QString FindInFilesSilverSearcher::toolTip() const
 {
-    return QString();
+    return {};
 }
 
 QWidget *FindInFilesSilverSearcher::widget() const
@@ -186,7 +170,7 @@ QWidget *FindInFilesSilverSearcher::widget() const
 
 void FindInFilesSilverSearcher::writeSettings(QSettings *settings) const
 {
-    settings->setValue(SearchOptionsString, m_searchOptionsLineEdit->text());
+    settings->setValue(s_searchOptionsString, m_searchOptionsLineEdit->text());
 }
 
 QFuture<SearchResultItems> FindInFilesSilverSearcher::executeSearch(
@@ -203,7 +187,7 @@ IEditor *FindInFilesSilverSearcher::openEditor(const SearchResultItem & /*item*/
 
 void FindInFilesSilverSearcher::readSettings(QSettings *settings)
 {
-    m_searchOptionsLineEdit->setText(settings->value(SearchOptionsString).toString());
+    m_searchOptionsLineEdit->setText(settings->value(s_searchOptionsString).toString());
 }
 
 } // namespace SilverSearcher

src/plugins/silversearcher/findinfilessilversearcher.h

@@ -3,10 +3,9 @@
 
 #pragma once
 
-#include <coreplugin/find/ifindsupport.h>
 #include <texteditor/basefilefind.h>
 
-#include <utils/fileutils.h>
+#include <utils/filepath.h>
 
 #include <QPointer>
 
@@ -14,6 +13,8 @@ QT_BEGIN_NAMESPACE
 class QLineEdit;
 QT_END_NAMESPACE
 
+namespace Core { class IFindSupport; }
+
 namespace SilverSearcher {
 
 class FindInFilesSilverSearcher : public TextEditor::SearchEngine
@@ -22,7 +23,6 @@ class FindInFilesSilverSearcher : public TextEditor::SearchEngine
 
 public:
     explicit FindInFilesSilverSearcher(QObject *parent);
-    ~FindInFilesSilverSearcher() override;
 
     // TextEditor::FileFindExtension
     QString title() const override;