CppcheckRunner: Connect to done() signal instead of finished()

Simplify internals a bit.

Change-Id: I4871b73f605af4d56e4993b6d71bbb22b4fce27d
Reviewed-by: <github-actions-qt-creator@cristianadam.eu>
Reviewed-by: hjk <hjk@qt.io>

src/plugins/cppcheck/cppcheckrunner.cpp

@@ -28,7 +28,6 @@
 
 #include <utils/hostosinfo.h>
 #include <utils/qtcassert.h>
-#include <utils/qtcprocess.h>
 
 #include <coreplugin/messagemanager.h>
 
@@ -37,11 +36,9 @@ using namespace Utils;
 namespace Cppcheck {
 namespace Internal {
 
-CppcheckRunner::CppcheckRunner(CppcheckTool &tool) :
-    m_tool(tool),
-    m_process(new Utils::QtcProcess(this))
+CppcheckRunner::CppcheckRunner(CppcheckTool &tool) : m_tool(tool)
 {
-    if (Utils::HostOsInfo::hostOs() == Utils::OsTypeLinux) {
+    if (HostOsInfo::hostOs() == OsTypeLinux) {
         QtcProcess getConf;
         getConf.setCommand({"getconf", {"ARG_MAX"}});
         getConf.start();
@@ -50,17 +47,15 @@ CppcheckRunner::CppcheckRunner(CppcheckTool &tool) :
         m_maxArgumentsLength = std::max(argMax.toInt(), m_maxArgumentsLength);
     }
 
-    m_process->setStdOutLineCallback([this](const QString &line) {
+    m_process.setStdOutLineCallback([this](const QString &line) {
         m_tool.parseOutputLine(line);
     });
-    m_process->setStdErrLineCallback([this](const QString &line) {
+    m_process.setStdErrLineCallback([this](const QString &line) {
        m_tool.parseErrorLine(line);
     });
 
-    connect(m_process, &QtcProcess::started,
-            this, &CppcheckRunner::handleStarted);
-    connect(m_process, &QtcProcess::finished,
-            this, &CppcheckRunner::handleFinished);
+    connect(&m_process, &QtcProcess::started, &m_tool, &CppcheckTool::startParsing);
+    connect(&m_process, &QtcProcess::done, this, &CppcheckRunner::handleDone);
 
     m_queueTimer.setSingleShot(true);
     const int checkDelayInMs = 200;
@@ -81,18 +76,18 @@ void CppcheckRunner::reconfigure(const FilePath &binary, const QString &argument
     m_arguments = arguments;
 }
 
-void CppcheckRunner::addToQueue(const Utils::FilePaths &files,
+void CppcheckRunner::addToQueue(const FilePaths &files,
                                 const QString &additionalArguments)
 {
-    Utils::FilePaths &existing = m_queue[additionalArguments];
+    FilePaths &existing = m_queue[additionalArguments];
     if (existing.isEmpty()) {
         existing = files;
     } else {
         std::copy_if(files.cbegin(), files.cend(), std::back_inserter(existing),
-                     [&existing](const Utils::FilePath &file) { return !existing.contains(file); });
+                     [&existing](const FilePath &file) { return !existing.contains(file); });
     }
 
-    if (m_isRunning) {
+    if (m_process.isRunning()) {
         stop(existing);
         return;
     }
@@ -100,16 +95,16 @@ void CppcheckRunner::addToQueue(const Utils::FilePaths &files,
     m_queueTimer.start();
 }
 
-void CppcheckRunner::stop(const Utils::FilePaths &files)
+void CppcheckRunner::stop(const FilePaths &files)
 {
-    if (!m_isRunning)
+    if (!m_process.isRunning())
         return;
 
     if (files.isEmpty() || m_currentFiles == files)
-        m_process->kill();
+        m_process.stop();
 }
 
-void CppcheckRunner::removeFromQueue(const Utils::FilePaths &files)
+void CppcheckRunner::removeFromQueue(const FilePaths &files)
 {
     if (m_queue.isEmpty())
         return;
@@ -118,21 +113,21 @@ void CppcheckRunner::removeFromQueue(const Utils::FilePaths &files)
         m_queue.clear();
     } else {
         for (auto it = m_queue.begin(), end = m_queue.end(); it != end;) {
-            for (const Utils::FilePath &file : files)
+            for (const FilePath &file : files)
                 it.value().removeOne(file);
             it = !it.value().isEmpty() ? ++it : m_queue.erase(it);
         }
     }
 }
 
-const Utils::FilePaths &CppcheckRunner::currentFiles() const
+const FilePaths &CppcheckRunner::currentFiles() const
 {
     return m_currentFiles;
 }
 
 QString CppcheckRunner::currentCommand() const
 {
-    return m_process->commandLine().toUserOutput();
+    return m_process.commandLine().toUserOutput();
 }
 
 void CppcheckRunner::checkQueued()
@@ -140,7 +135,7 @@ void CppcheckRunner::checkQueued()
     if (m_queue.isEmpty() || m_binary.isEmpty())
         return;
 
-    Utils::FilePaths files = m_queue.begin().value();
+    FilePaths files = m_queue.begin().value();
     QString arguments = m_arguments + ' ' + m_queue.begin().key();
     m_currentFiles.clear();
     int argumentsLength = arguments.length();
@@ -158,30 +153,19 @@ void CppcheckRunner::checkQueued()
     else
         m_queue.begin().value() = files;
 
-    m_process->setCommand(CommandLine(m_binary, arguments, CommandLine::Raw));
-    m_process->start();
+    m_process.setCommand(CommandLine(m_binary, arguments, CommandLine::Raw));
+    m_process.start();
 }
 
-void CppcheckRunner::handleStarted()
+void CppcheckRunner::handleDone()
 {
-    if (m_isRunning)
-        return;
-
-    m_isRunning = true;
-    m_tool.startParsing();
-}
-
-void CppcheckRunner::handleFinished()
-{
-    if (m_process->error() != QProcess::FailedToStart) {
+    if (m_process.result() == ProcessResult::FinishedWithSuccess)
         m_tool.finishParsing();
-    } else {
-        const QString message = tr("Cppcheck failed to start: \"%1\".").arg(currentCommand());
-        Core::MessageManager::writeSilently(message);
-    }
+    else
+        Core::MessageManager::writeSilently(m_process.exitMessage());
+
     m_currentFiles.clear();
-    m_process->close();
-    m_isRunning = false;
+    m_process.close();
 
     if (!m_queue.isEmpty())
         checkQueued();

src/plugins/cppcheck/cppcheckrunner.h

@@ -26,12 +26,11 @@
 #pragma once
 
 #include <utils/filepath.h>
+#include <utils/qtcprocess.h>
 
 #include <QHash>
 #include <QTimer>
 
-namespace Utils { class QtcProcess; }
-
 namespace Cppcheck {
 namespace Internal {
 
@@ -58,18 +57,16 @@ private:
     void checkQueued();
     void readOutput();
     void readError();
-    void handleStarted();
-    void handleFinished();
+    void handleDone();
 
     CppcheckTool &m_tool;
-    Utils::QtcProcess *m_process = nullptr;
+    Utils::QtcProcess m_process;
     Utils::FilePath m_binary;
     QString m_arguments;
     QHash<QString, Utils::FilePaths> m_queue;
     Utils::FilePaths m_currentFiles;
     QTimer m_queueTimer;
     int m_maxArgumentsLength = 32767;
-    bool m_isRunning = false;
 };
 
 } // namespace Internal