AutotoolsProject: Simplify using Project::projectFileIsDirty signal

Change-Id: Idbb81a8d3ddd2f2d81b9060f228331a233fd6ccf
Reviewed-by: hjk <hjk@qt.io>

src/plugins/autotoolsprojectmanager/autotoolsproject.cpp

@@ -67,16 +67,17 @@ using namespace AutotoolsProjectManager;
 using namespace AutotoolsProjectManager::Internal;
 using namespace ProjectExplorer;
 
-AutotoolsProject::AutotoolsProject(const Utils::FilePath &fileName) :
-    Project(Constants::MAKEFILE_MIMETYPE, fileName),
-    m_fileWatcher(new Utils::FileSystemWatcher(this)),
-    m_cppCodeModelUpdater(new CppTools::CppProjectUpdater)
+AutotoolsProject::AutotoolsProject(const Utils::FilePath &fileName)
+    : Project(Constants::MAKEFILE_MIMETYPE, fileName)
+    , m_cppCodeModelUpdater(new CppTools::CppProjectUpdater)
 {
     setId(Constants::AUTOTOOLS_PROJECT_ID);
     setProjectLanguages(Core::Context(ProjectExplorer::Constants::CXX_LANGUAGE_ID));
     setDisplayName(projectDirectory().fileName());
 
     setHasMakeInstallEquivalent(true);
+
+    connect(this, &AutotoolsProject::projectFileIsDirty, this, &AutotoolsProject::loadProjectTree);
 }
 
 AutotoolsProject::~AutotoolsProject()
@@ -100,9 +101,6 @@ Project::RestoreResult AutotoolsProject::fromMap(const QVariantMap &map, QString
     if (result != RestoreResult::Ok)
         return result;
 
-    connect(m_fileWatcher, &Utils::FileSystemWatcher::fileChanged,
-            this, &AutotoolsProject::onFileChanged);
-
     // Load the project tree structure.
     loadProjectTree();
 
@@ -165,12 +163,9 @@ void AutotoolsProject::makefileParsingFinished()
     if (m_makefileParserThread->hasError())
         qWarning("Parsing of makefile contained errors.");
 
-    // Remove file watches for the current project state.
-    // The file watches will be added again after the parsing.
-    m_fileWatcher->removeFiles(m_watchedFiles);
-
     m_files.clear();
-    m_watchedFiles.clear();
+
+    QVector<Utils::FilePath> filesToWatch;
 
     // Apply sources to m_files, which are returned at AutotoolsProject::files()
     const QFileInfo fileInfo = projectFilePath().toFileInfo();
@@ -187,8 +182,7 @@ void AutotoolsProject::makefileParsingFinished()
 
         m_files.append(absMakefile);
 
-        m_fileWatcher->addFile(absMakefile, Utils::FileSystemWatcher::WatchAllChanges);
-        m_watchedFiles.append(absMakefile);
+        filesToWatch.append(Utils::FilePath::fromString(absMakefile));
     }
 
     // Add configure.ac file to project and watch for changes.
@@ -198,8 +192,7 @@ void AutotoolsProject::makefileParsingFinished()
         const QString absConfigureAc = dir.absoluteFilePath(configureAc);
         m_files.append(absConfigureAc);
 
-        m_fileWatcher->addFile(absConfigureAc, Utils::FileSystemWatcher::WatchAllChanges);
-        m_watchedFiles.append(absConfigureAc);
+        filesToWatch.append(Utils::FilePath::fromString(absConfigureAc));
     }
 
     auto newRoot = std::make_unique<ProjectNode>(projectDirectory());
@@ -209,6 +202,7 @@ void AutotoolsProject::makefileParsingFinished()
                                                           FileNode::fileTypeForFileName(path)));
     }
     setRootProjectNode(std::move(newRoot));
+    setExtraProjectFiles(filesToWatch);
 
     updateCppCodeModel();
 
@@ -216,12 +210,6 @@ void AutotoolsProject::makefileParsingFinished()
     m_makefileParserThread = nullptr;
 }
 
-void AutotoolsProject::onFileChanged(const QString &file)
-{
-    Q_UNUSED(file)
-    loadProjectTree();
-}
-
 static QStringList filterIncludes(const QString &absSrc, const QString &absBuild,
                                   const QStringList &in)
 {

src/plugins/autotoolsprojectmanager/autotoolsproject.h

@@ -79,13 +79,6 @@ private:
      */
     void makefileParsingFinished();
 
-    /**
-     * Is invoked, if a file of the project tree has been changed by the user.
-     * If a Makefile.am or a configure.ac file has been changed, the project
-     * configuration must be updated.
-     */
-    void onFileChanged(const QString &file);
-
     /**
      * This function is in charge of the code completion.
      */
@@ -94,10 +87,6 @@ private:
     /// Return value for AutotoolsProject::files()
     QStringList m_files;
 
-    /// Watches project files for changes.
-    Utils::FileSystemWatcher *m_fileWatcher;
-    QStringList m_watchedFiles;
-
     /// Responsible for parsing the makefiles asynchronously in a thread
     MakefileParserThread *m_makefileParserThread = nullptr;