CMake: Support building a single file

Fixes: QTCREATORBUG-18898
Change-Id: I0ec24b20bfa8d43093b6e6681ddd752fbdea2088
Reviewed-by: Tobias Hunger <tobias.hunger@qt.io>

6 files changed, 140 insertions, 0 deletions

diff --git a/src/plugins/cmakeprojectmanager/cmakeprojectconstants.h b/src/plugins/cmakeprojectmanager/cmakeprojectconstants.h
index e1e1a0114e..8714f04111 100644
--- a/src/plugins/cmakeprojectmanager/cmakeprojectconstants.h
+++ b/src/plugins/cmakeprojectmanager/cmakeprojectconstants.h
@@ -38,6 +38,8 @@ const char RUNCMAKE[] = "CMakeProject.RunCMake";
 const char CLEARCMAKECACHE[] = "CMakeProject.ClearCache";
 const char RESCANPROJECT[] = "CMakeProject.RescanProject";
 const char RUNCMAKECONTEXTMENU[] = "CMakeProject.RunCMakeContextMenu";
+const char BUILDFILECONTEXTMENU[] = "CMakeProject.BuildFileContextMenu";
+const char BUILDFILE[] = "CMakeProject.BuildFile";
 
 // Project
 const char CMAKEPROJECT_ID[] = "CMakeProjectManager.CMakeProject";
diff --git a/src/plugins/cmakeprojectmanager/cmakeprojectmanager.cpp b/src/plugins/cmakeprojectmanager/cmakeprojectmanager.cpp
index 63fe9c5fbb..21be7d1995 100644
--- a/src/plugins/cmakeprojectmanager/cmakeprojectmanager.cpp
+++ b/src/plugins/cmakeprojectmanager/cmakeprojectmanager.cpp
@@ -30,11 +30,14 @@
 #include "cmakeproject.h"
 #include "cmakesettingspage.h"
 #include "cmaketoolmanager.h"
+#include "cmakeprojectnodes.h"
 
 #include <coreplugin/icore.h>
+#include <coreplugin/messagemanager.h>
 #include <coreplugin/actionmanager/actionmanager.h>
 #include <coreplugin/actionmanager/command.h>
 #include <coreplugin/actionmanager/actioncontainer.h>
+#include <coreplugin/editormanager/editormanager.h>
 #include <projectexplorer/buildmanager.h>
 #include <projectexplorer/projectexplorer.h>
 #include <projectexplorer/projectexplorerconstants.h>
@@ -42,6 +45,8 @@
 #include <projectexplorer/session.h>
 #include <projectexplorer/target.h>
 
+#include <utils/parameteraction.h>
+
 #include <QAction>
 #include <QDateTime>
 #include <QIcon>
@@ -61,6 +66,8 @@ CMakeManager::CMakeManager() :
             Core::ActionManager::actionContainer(ProjectExplorer::Constants::M_PROJECTCONTEXT);
     Core::ActionContainer *msubproject =
             Core::ActionManager::actionContainer(ProjectExplorer::Constants::M_SUBPROJECTCONTEXT);
+    Core::ActionContainer *mfile =
+            Core::ActionManager::actionContainer(ProjectExplorer::Constants::M_FILECONTEXT);
 
     const Core::Context projectContext(CMakeProjectManager::Constants::CMAKEPROJECT_ID);
     const Core::Context globalContext(Core::Constants::C_GLOBAL);
@@ -90,6 +97,14 @@ CMakeManager::CMakeManager() :
         runCMake(ProjectTree::currentProject());
     });
 
+    m_buildFileContextMenu = new QAction(tr("Build"), this);
+    command = Core::ActionManager::registerAction(m_buildFileContextMenu,
+                                                  Constants::BUILDFILECONTEXTMENU, projectContext);
+    command->setAttribute(Core::Command::CA_Hide);
+    mfile->addAction(command, ProjectExplorer::Constants::G_FILE_OTHER);
+    connect(m_buildFileContextMenu, &QAction::triggered,
+            this, &CMakeManager::buildFileContextMenu);
+
     command = Core::ActionManager::registerAction(m_rescanProjectAction,
                                                   Constants::RESCANPROJECT, globalContext);
     command->setAttribute(Core::Command::CA_Hide);
@@ -98,10 +113,24 @@ CMakeManager::CMakeManager() :
         rescanProject(ProjectTree::currentProject());
     });
 
+    m_buildFileAction = new Utils::ParameterAction(tr("Build File"), tr("Build File \"%1\""),
+                                                   Utils::ParameterAction::AlwaysEnabled, this);
+    command = Core::ActionManager::registerAction(m_buildFileAction, Constants::BUILDFILE);
+    command->setAttribute(Core::Command::CA_Hide);
+    command->setAttribute(Core::Command::CA_UpdateText);
+    command->setDescription(m_buildFileAction->text());
+    command->setDefaultKeySequence(QKeySequence(tr("Ctrl+Alt+B")));
+    mbuild->addAction(command, ProjectExplorer::Constants::G_BUILD_BUILD);
+    connect(m_buildFileAction, &QAction::triggered, this, [this] { buildFile(); });
+
     connect(SessionManager::instance(), &SessionManager::startupProjectChanged,
             this, &CMakeManager::updateCmakeActions);
     connect(BuildManager::instance(), &BuildManager::buildStateChanged,
             this, &CMakeManager::updateCmakeActions);
+    connect(Core::EditorManager::instance(), &Core::EditorManager::currentEditorChanged,
+            this, &CMakeManager::updateBuildFileAction);
+    connect(ProjectTree::instance(), &ProjectTree::currentNodeChanged,
+            this, &CMakeManager::updateCmakeActions);
 
     updateCmakeActions();
 }
@@ -113,6 +142,7 @@ void CMakeManager::updateCmakeActions()
     m_runCMakeAction->setVisible(visible);
     m_clearCMakeCacheAction->setVisible(visible);
     m_rescanProjectAction->setVisible(visible);
+    enableBuildFileMenus(ProjectTree::currentNode());
 }
 
 void CMakeManager::clearCMakeCache(Project *project)
@@ -144,3 +174,89 @@ void CMakeManager::rescanProject(Project *project)
 
     cmakeProject->runCMakeAndScanProjectTree();// by my experience: every rescan run requires cmake run too
 }
+
+void CMakeManager::updateBuildFileAction()
+{
+    Node *node = nullptr;
+    if (Core::IDocument *currentDocument = Core::EditorManager::currentDocument())
+        node = ProjectTree::nodeForFile(currentDocument->filePath());
+    enableBuildFileMenus(node);
+}
+
+void CMakeManager::enableBuildFileMenus(Node *node)
+{
+    m_buildFileAction->setVisible(false);
+    m_buildFileAction->setEnabled(false);
+    m_buildFileAction->setParameter(QString());
+    m_buildFileContextMenu->setEnabled(false);
+
+    if (!node)
+        return;
+    Project *project = ProjectTree::projectForNode(node);
+    if (!project)
+        return;
+    Target *target = project->activeTarget();
+    if (!target)
+        return;
+    const QString generator = CMakeGeneratorKitAspect::generator(target->kit());
+    if (generator != "Ninja" && !generator.contains("Makefiles"))
+        return;
+
+    if (const FileNode *fileNode = node->asFileNode()) {
+        const FileType type = fileNode->fileType();
+        const bool visible = qobject_cast<CMakeProject *>(project)
+                && dynamic_cast<CMakeTargetNode *>(node->parentProjectNode())
+                && (type == FileType::Source || type == FileType::Header);
+
+        const bool enabled = visible && !BuildManager::isBuilding(project);
+        m_buildFileAction->setVisible(visible);
+        m_buildFileAction->setEnabled(enabled);
+        m_buildFileAction->setParameter(node->filePath().fileName());
+        m_buildFileContextMenu->setEnabled(enabled);
+    }
+}
+
+void CMakeManager::buildFile(Node *node)
+{
+    if (!node) {
+        Core::IDocument *currentDocument= Core::EditorManager::currentDocument();
+        if (!currentDocument)
+            return;
+        const Utils::FilePath file = currentDocument->filePath();
+        node = ProjectTree::nodeForFile(file);
+    }
+    FileNode *fileNode  = node ? node->asFileNode() : nullptr;
+    if (!fileNode)
+        return;
+    Project *project = ProjectTree::projectForNode(fileNode);
+    if (!project)
+        return;
+    CMakeTargetNode *targetNode = dynamic_cast<CMakeTargetNode *>(fileNode->parentProjectNode());
+    if (!targetNode)
+        return;
+    auto cmakeProject = static_cast<CMakeProject *>(project);
+    Target *target = cmakeProject->activeTarget();
+    const QString generator = CMakeGeneratorKitAspect::generator(target->kit());
+    const QString relativeSource = fileNode->filePath().relativeChildPath(targetNode->filePath()).toString();
+    const QString objExtension = Utils::HostOsInfo::isWindowsHost() ? QString(".obj") : QString(".o");
+    Utils::FilePath targetBase;
+    if (generator == "Ninja") {
+        BuildConfiguration *bc = target->activeBuildConfiguration();
+        const Utils::FilePath relativeBuildDir = targetNode->buildDirectory().relativeChildPath(
+                    bc->buildDirectory());
+        targetBase = relativeBuildDir
+                .pathAppended("CMakeFiles")
+                .pathAppended(targetNode->displayName() + ".dir");
+    } else if (!generator.contains("Makefiles")) {
+        Core::MessageManager::write(tr("Build File is not supported for generator \"%1\"")
+                                    .arg(generator));
+        return;
+    }
+    cmakeProject->buildCMakeTarget(targetBase.pathAppended(relativeSource).toString() + objExtension);
+}
+
+void CMakeManager::buildFileContextMenu()
+{
+    if (Node *node = ProjectTree::currentNode())
+        buildFile(node);
+}
diff --git a/src/plugins/cmakeprojectmanager/cmakeprojectmanager.h b/src/plugins/cmakeprojectmanager/cmakeprojectmanager.h
index 106fb68e2f..eab78b190a 100644
--- a/src/plugins/cmakeprojectmanager/cmakeprojectmanager.h
+++ b/src/plugins/cmakeprojectmanager/cmakeprojectmanager.h
@@ -27,6 +27,8 @@
 
 #include <projectexplorer/project.h>
 
+namespace Utils { class ParameterAction; }
+
 QT_BEGIN_NAMESPACE
 class QAction;
 QT_END_NAMESPACE
@@ -46,11 +48,17 @@ private:
     void clearCMakeCache(ProjectExplorer::Project *project);
     void runCMake(ProjectExplorer::Project *project);
     void rescanProject(ProjectExplorer::Project *project);
+    void buildFileContextMenu();
+    void buildFile(ProjectExplorer::Node *node = nullptr);
+    void updateBuildFileAction();
+    void enableBuildFileMenus(ProjectExplorer::Node *node);
 
     QAction *m_runCMakeAction;
     QAction *m_clearCMakeCacheAction;
     QAction *m_runCMakeActionContextMenu;
     QAction *m_rescanProjectAction;
+    QAction *m_buildFileContextMenu;
+    Utils::ParameterAction *m_buildFileAction;
 };
 
 } // namespace Internal
diff --git a/src/plugins/cmakeprojectmanager/cmakeprojectnodes.cpp b/src/plugins/cmakeprojectmanager/cmakeprojectnodes.cpp
index b4ad72595d..f14f627b34 100644
--- a/src/plugins/cmakeprojectmanager/cmakeprojectnodes.cpp
+++ b/src/plugins/cmakeprojectmanager/cmakeprojectnodes.cpp
@@ -191,6 +191,16 @@ QString CMakeTargetNode::buildKey() const
     return generateId(filePath(), m_target);
 }
 
+Utils::FilePath CMakeTargetNode::buildDirectory() const
+{
+    return m_buildDirectory;
+}
+
+void CMakeTargetNode::setBuildDirectory(const Utils::FilePath &directory)
+{
+    m_buildDirectory = directory;
+}
+
 QVariant CMakeTargetNode::data(Core::Id role) const
 {
     auto value = [this](const QByteArray &key) -> QVariant {
diff --git a/src/plugins/cmakeprojectmanager/cmakeprojectnodes.h b/src/plugins/cmakeprojectmanager/cmakeprojectnodes.h
index 18a4288f08..5a61737925 100644
--- a/src/plugins/cmakeprojectmanager/cmakeprojectnodes.h
+++ b/src/plugins/cmakeprojectmanager/cmakeprojectnodes.h
@@ -69,6 +69,8 @@ public:
 
     QString tooltip() const final;
     QString buildKey() const final;
+    Utils::FilePath buildDirectory() const;
+    void setBuildDirectory(const Utils::FilePath &directory);
 
     bool supportsAction(ProjectExplorer::ProjectAction action, const Node *node) const override;
     bool addFiles(const QStringList &filePaths, QStringList *notAdded) override;
@@ -79,6 +81,7 @@ public:
 
 private:
     QString m_tooltip;
+    Utils::FilePath m_buildDirectory;
     CMakeConfig m_config;
 };
 
diff --git a/src/plugins/cmakeprojectmanager/servermodereader.cpp b/src/plugins/cmakeprojectmanager/servermodereader.cpp
index bfa9d5869b..a0a70a8d85 100644
--- a/src/plugins/cmakeprojectmanager/servermodereader.cpp
+++ b/src/plugins/cmakeprojectmanager/servermodereader.cpp
@@ -862,6 +862,7 @@ void ServerModeReader::addTargets(const QHash<Utils::FilePath, ProjectExplorer::
         CMakeTargetNode *tNode = createTargetNode(cmakeListsNodes, t->sourceDirectory, t->name);
         QTC_ASSERT(tNode, qDebug() << "No target node for" << t->sourceDirectory << t->name; continue);
         tNode->setTargetInformation(t->artifacts, t->type);
+        tNode->setBuildDirectory(t->buildDirectory);
         QList<FolderNode::LocationInfo> info;
         // Set up a default target path:
         FilePath targetPath = t->sourceDirectory.pathAppended("CMakeLists.txt");