Git: Fix filling commit selection combobox for log

Broken by commit cbb70513bf, which changed the
format for the normal log to override the highlighter.

We still need the hightlighter for the log with diff.

Therefore, a separation between highlighting
and parsing the log is needed to populate the
combobox for commit selection again.

Change-Id: I902ce548fc25875f2cd67b165283ff1236329afa
Reviewed-by: Orgad Shaneh <orgads@gmail.com>

src/plugins/git/gitclient.cpp

@@ -1048,7 +1048,7 @@ static QStringList normalLogArguments()
 
     const QString logArgs = QStringLiteral(
                 "--pretty=format:"
-                "Commit: %C(%1)%H%Creset %C(%2)%d%Creset%n"
+                "commit %C(%1)%H%Creset %C(%2)%d%Creset%n"
                 "Author: %C(%3)%an <%ae>%Creset%n"
                 "Date:   %C(%4)%cD%Creset%n%n"
                 "%C(%5)%s%Creset%n%n%b%n"
@@ -1092,8 +1092,12 @@ void GitClient::log(const QString &workingDirectory, const QString &fileName,
         arguments << "-n" << QString::number(logCount);
 
     arguments << argWidget->arguments();
-    if (arguments.contains(patchOption))
+    if (arguments.contains(patchOption)) {
         arguments.removeAll(colorOption);
+        editor->setHighlightingEnabled(true);
+    } else {
+        editor->setHighlightingEnabled(false);
+    }
     if (!arguments.contains(graphOption) && !arguments.contains(patchOption))
         arguments << normalLogArguments();
 

src/plugins/vcsbase/diffandloghighlighter.cpp

@@ -115,6 +115,7 @@ public:
     QTextCharFormat m_addedTrailingWhiteSpaceFormat;
 
     Internal::FoldingState m_foldingState;
+    bool m_enabled = true;
 };
 
 TextEditor::TextStyle DiffAndLogHighlighterPrivate::analyzeLine(const QString &text) const
@@ -179,6 +180,7 @@ void DiffAndLogHighlighter::highlightBlock(const QString &text)
     const int length = text.length();
     const TextEditor::TextStyle format = d->analyzeLine(text);
 
+    if (d->m_enabled) {
         if (format == TextEditor::C_ADDED_LINE) {
             // Mark trailing whitespace.
             const int trimmedLen = trimmedLength(text);
@@ -190,6 +192,7 @@ void DiffAndLogHighlighter::highlightBlock(const QString &text)
         } else {
             formatSpaces(text);
         }
+    }
 
     // codefolding:
     TextEditor::TextBlockUserData *data =
@@ -241,4 +244,9 @@ void DiffAndLogHighlighter::setFontSettings(const TextEditor::FontSettings &font
     d->updateOtherFormats();
 }
 
+void DiffAndLogHighlighter::setEnabled(bool e)
+{
+    d->m_enabled = e;
+}
+
 } // namespace VcsBase

src/plugins/vcsbase/diffandloghighlighter.h

@@ -53,6 +53,8 @@ public:
 
     void setFontSettings(const TextEditor::FontSettings &fontSettings) override;
 
+    void setEnabled(bool e);
+
 private:
     friend class DiffAndLogHighlighterPrivate;
     DiffAndLogHighlighterPrivate *const d;

src/plugins/vcsbase/vcsbaseeditor.cpp

@@ -828,6 +828,12 @@ void VcsBaseEditorWidget::setFileLogAnnotateEnabled(bool e)
     d->m_fileLogAnnotateEnabled = e;
 }
 
+void VcsBaseEditorWidget::setHighlightingEnabled(bool e)
+{
+    auto dh = static_cast<DiffAndLogHighlighter *>(textDocument()->syntaxHighlighter());
+    dh->setEnabled(e);
+}
+
 QString VcsBaseEditorWidget::workingDirectory() const
 {
     return d->m_workingDirectory;

src/plugins/vcsbase/vcsbaseeditor.h

@@ -192,6 +192,8 @@ public:
     bool isFileLogAnnotateEnabled() const;
     void setFileLogAnnotateEnabled(bool e);
 
+    void setHighlightingEnabled(bool e);
+
     QTextCodec *codec() const;
     void setCodec(QTextCodec *);