Incredibuild: Do not rely on metaobject classnames for build steps

The preferred interface are step ids, #include'ing other modules
*constants.h header is considered ok for siblings in the core
distribution and does not create run time dependencies between plugins.

Change-Id: I0421936068b459c1aea61e23310f860d8ed1f0d4
Reviewed-by: Christian Kandeler <christian.kandeler@qt.io>

src/plugins/incredibuild/cmakecommandbuilder.cpp

@@ -26,15 +26,12 @@
 #include "cmakecommandbuilder.h"
 
 #include <projectexplorer/buildconfiguration.h>
-#include <projectexplorer/buildstep.h>
 #include <projectexplorer/buildsteplist.h>
-#include <projectexplorer/kitinformation.h>
-#include <projectexplorer/target.h>
-#include <projectexplorer/toolchain.h>
-#include <projectexplorer/project.h>
 
 #include <utils/qtcprocess.h>
 
+#include <cmakeprojectmanager/cmakeprojectconstants.h> // Compile-time only
+
 #include <QRegularExpression>
 #include <QStandardPaths>
 
@@ -43,19 +40,9 @@ using namespace ProjectExplorer;
 namespace IncrediBuild {
 namespace Internal {
 
-bool CMakeCommandBuilder::canMigrate(BuildStepList *buildStepList)
+QList<Utils::Id> CMakeCommandBuilder::migratableSteps() const
 {
-    // "Make"
-    QString makeClassName("CMakeProjectManager::Internal::CMakeBuildStep");
-    for (int i = buildStepList->count() - 1; i >= 0; --i) {
-        QString className = QString::fromUtf8(buildStepList->at(i)->metaObject()->className());
-        if (className.compare(makeClassName) == 0) {
-            buildStepList->at(i)->setEnabled(false);
-            buildStepList->at(i)->projectConfiguration()->project()->saveSettings();
-            return true;
-        }
-    }
-    return false;
+    return {CMakeProjectManager::Constants::CMAKE_BUILD_STEP_ID};
 }
 
 QString CMakeCommandBuilder::defaultCommand() const

src/plugins/incredibuild/cmakecommandbuilder.h

@@ -36,7 +36,7 @@ public:
     CMakeCommandBuilder(ProjectExplorer::BuildStep *buildStep) : CommandBuilder(buildStep) {}
 
 private:
-    bool canMigrate(ProjectExplorer::BuildStepList *buildStepList) final;
+    QList<Utils::Id> migratableSteps() const final;
     QString id() const final { return "CMakeCommandBuilder"; }
     QString displayName() const final { return tr("CMake"); }
     QString defaultCommand() const final;

src/plugins/incredibuild/commandbuilder.h

@@ -25,7 +25,7 @@
 
 #pragma once
 
-#include <projectexplorer/buildsteplist.h>
+#include <projectexplorer/buildstep.h>
 
 #include <QCoreApplication>
 
@@ -40,7 +40,7 @@ public:
     CommandBuilder(ProjectExplorer::BuildStep *buildStep) : m_buildStep(buildStep) {}
     virtual ~CommandBuilder() = default;
 
-    virtual bool canMigrate(ProjectExplorer::BuildStepList*) { return false; }
+    virtual QList<Utils::Id> migratableSteps() const { return {}; }
 
     ProjectExplorer::BuildStep *buildStep() const { return m_buildStep; }
 

src/plugins/incredibuild/commandbuilderaspect.cpp

@@ -30,6 +30,8 @@
 #include "makecommandbuilder.h"
 
 #include <projectexplorer/abstractprocessstep.h>
+#include <projectexplorer/buildsteplist.h>
+#include <projectexplorer/project.h>
 
 #include <utils/environment.h>
 #include <utils/pathchooser.h>
@@ -69,7 +71,7 @@ public:
         &m_cmakeCommandBuilder
     };
 
-    // Default to the first in list, which should be the "Custom Command"
+    // Default to "Custom Command", but try to upgrade in tryToMigrate() later.
     CommandBuilder *m_activeCommandBuilder = m_commandBuilders[0];
 
     bool m_loadedFromMap = false;
@@ -115,12 +117,17 @@ void CommandBuilderAspectPrivate::setActiveCommandBuilder(const QString &command
 
 void CommandBuilderAspectPrivate::tryToMigrate()
 {
-    // This constructor is called when creating a fresh build step.
+    // This function is called when creating a fresh build step.
     // Attempt to detect build system from pre-existing steps.
     for (CommandBuilder *p : m_commandBuilders) {
-        if (p->canMigrate(m_buildStep->stepList())) {
+        const QList<Utils::Id> migratableSteps = p->migratableSteps();
+        for (Utils::Id stepId : migratableSteps) {
+            if (BuildStep *bs = m_buildStep->stepList()->firstStepWithId(stepId)) {
                 m_activeCommandBuilder = p;
-            break;
+                bs->setEnabled(false);
+                m_buildStep->project()->saveSettings();
+                return;
+            }
         }
     }
 }

src/plugins/incredibuild/makecommandbuilder.cpp

@@ -34,6 +34,8 @@
 #include <projectexplorer/toolchain.h>
 #include <projectexplorer/project.h>
 
+#include <qmakeprojectmanager/qmakeprojectmanagerconstants.h> // Compile-time only
+
 #include <QDebug>
 #include <QFileInfo>
 #include <QRegularExpression>
@@ -43,19 +45,9 @@ using namespace ProjectExplorer;
 namespace IncrediBuild {
 namespace Internal {
 
-bool MakeCommandBuilder::canMigrate(BuildStepList *buildStepList)
+QList<Utils::Id> MakeCommandBuilder::migratableSteps() const
 {
-    // "Make"
-    QString makeClassName("QmakeProjectManager::QmakeMakeStep");
-    for (int i = buildStepList->count() - 1; i >= 0; --i) {
-        QString className = QString::fromUtf8(buildStepList->at(i)->metaObject()->className());
-        if (className.compare(makeClassName) == 0) {
-            buildStepList->at(i)->setEnabled(false);
-            buildStepList->at(i)->projectConfiguration()->project()->saveSettings();
-            return true;
-        }
-    }
-    return false;
+    return {QmakeProjectManager::Constants::MAKESTEP_BS_ID};
 }
 
 QString MakeCommandBuilder::defaultCommand() const

src/plugins/incredibuild/makecommandbuilder.h

@@ -36,7 +36,7 @@ public:
     MakeCommandBuilder(ProjectExplorer::BuildStep *buildStep) : CommandBuilder(buildStep) {}
 
 private:
-    bool canMigrate(ProjectExplorer::BuildStepList *buildStepList) final;
+    QList<Utils::Id> migratableSteps() const final;
     QString id() const final { return "MakeCommandBuilder"; }
     QString displayName() const final { return tr("Make"); }
     QString defaultCommand() const final;