Git: Add context-menu actions for cherry-pick and revert

Change-Id: Ic266fe039423a37df2fc347ead7530322ac47bb8
Reviewed-by: Tobias Hunger <tobias.hunger@digia.com>

doc/src/howto/creator-vcs.qdoc

@@ -199,6 +199,7 @@
     display a description of the change including the diff.
     Right-clicking on an identifier brings up a context menu that lets you
     show annotation views of previous versions (see \l{Annotating Files}).
+    With Git you can also choose to cherry-pick or revert a change.
 
     \image qtcreator-vcs-log.png
 

src/plugins/git/giteditor.cpp

@@ -219,6 +219,20 @@ void GitEditor::commandFinishedGotoLine(bool ok, int /* exitCode */, const QVari
     }
 }
 
+void GitEditor::cherryPickChange()
+{
+    const QFileInfo fi(source());
+    const QString workingDirectory = fi.isDir() ? fi.absoluteFilePath() : fi.absolutePath();
+    GitPlugin::instance()->gitClient()->cherryPickCommit(workingDirectory, m_currentChange);
+}
+
+void GitEditor::revertChange()
+{
+    const QFileInfo fi(source());
+    const QString workingDirectory = fi.isDir() ? fi.absoluteFilePath() : fi.absolutePath();
+    GitPlugin::instance()->gitClient()->revertCommit(workingDirectory, m_currentChange);
+}
+
 QString GitEditor::decorateVersion(const QString &revision) const
 {
     const QFileInfo fi(source());
@@ -249,6 +263,12 @@ bool GitEditor::isValidRevision(const QString &revision) const
     return GitPlugin::instance()->gitClient()->isValidRevision(revision);
 }
 
+void GitEditor::addChangeActions(QMenu *menu, const QString &change)
+{
+    m_currentChange = change;
+    menu->addAction(tr("Cherry-pick Change %1").arg(change), this, SLOT(cherryPickChange()));
+    menu->addAction(tr("Revert Change %1").arg(change), this, SLOT(revertChange()));
+}
+
 } // namespace Internal
 } // namespace Git
-

src/plugins/git/giteditor.h

@@ -54,6 +54,10 @@ public slots:
     // Matches  the signature of the finished signal of GitCommand
     void commandFinishedGotoLine(bool ok, int exitCode, const QVariant &v);
 
+private slots:
+    void cherryPickChange();
+    void revertChange();
+
 private:
     QSet<QString> annotationChanges() const;
     QString changeUnderCursor(const QTextCursor &) const;
@@ -61,9 +65,11 @@ private:
     QString decorateVersion(const QString &revision) const;
     QStringList annotationPreviousVersions(const QString &revision) const;
     bool isValidRevision(const QString &revision) const;
+    void addChangeActions(QMenu *menu, const QString &change);
 
     mutable QRegExp m_changeNumberPattern8;
     mutable QRegExp m_changeNumberPattern40;
+    QString m_currentChange;
 };
 
 } // namespace Git

src/plugins/vcsbase/vcsbaseeditor.cpp

@@ -365,6 +365,7 @@ void ChangeTextCursorHandler::fillContextMenu(QMenu *menu, EditorContentType typ
     default:
         break;
     }
+    widget->addChangeActions(menu, m_currentChange);
 }
 
 QString ChangeTextCursorHandler::currentContents() const
@@ -1449,6 +1450,10 @@ QString VcsBaseEditorWidget::fileNameFromDiffSpecification(const QTextBlock &inB
     return QString();
 }
 
+void VcsBaseEditorWidget::addChangeActions(QMenu *, const QString &)
+{
+}
+
 QString VcsBaseEditorWidget::decorateVersion(const QString &revision) const
 {
     return revision;

src/plugins/vcsbase/vcsbaseeditor.h

@@ -236,6 +236,9 @@ protected:
     // Revert a patch chunk. Default implementation uses patch.exe
     virtual bool applyDiffChunk(const DiffChunk &dc, bool revert = false) const;
 
+    virtual void addChangeActions(QMenu *menu, const QString &change);
+
+private:
     // Implement to return a set of change identifiers in
     // annotation mode
     virtual QSet<QString> annotationChanges() const = 0;