Beautifier: Unification of the tool's command generation

It's a simple refactoring change. The change, however, is a preparation
for further commits and to make the command generation similar to the
one used in ClangFormat.

Change-Id: I28ecc816dd7b271ff6cda908079a60ab70f145fd
Reviewed-by: Jochen Becher <jochen_becher@gmx.de>
Reviewed-by: David Schulz <david.schulz@theqtcompany.com>

4 files changed, 74 insertions, 58 deletions

diff --git a/src/plugins/beautifier/artisticstyle/artisticstyle.cpp b/src/plugins/beautifier/artisticstyle/artisticstyle.cpp
index e6ffd8808c..06e48f40a2 100644
--- a/src/plugins/beautifier/artisticstyle/artisticstyle.cpp
+++ b/src/plugins/beautifier/artisticstyle/artisticstyle.cpp
@@ -101,7 +101,19 @@ QList<QObject *> ArtisticStyle::autoReleaseObjects()
 
 void ArtisticStyle::formatFile()
 {
-    QString cfgFileName;
+    const QString cfgFileName = configurationFile();
+    if (cfgFileName.isEmpty()) {
+        BeautifierPlugin::showError(BeautifierPlugin::msgCannotGetConfigurationFile(
+                                        QLatin1String(Constants::ArtisticStyle::DISPLAY_NAME)));
+    } else {
+        m_beautifierPlugin->formatCurrentFile(command(cfgFileName));
+    }
+}
+
+QString ArtisticStyle::configurationFile() const
+{
+    if (m_settings->useCustomStyle())
+        return m_settings->styleFileName(m_settings->customStyle());
 
     if (m_settings->useOtherFiles()) {
         if (const ProjectExplorer::Project *project
@@ -112,48 +124,41 @@ void ArtisticStyle::formatFile()
                 if (!file.endsWith(QLatin1String(".astylerc")))
                     continue;
                 const QFileInfo fi(file);
-                if (fi.isReadable()) {
-                    cfgFileName = file;
-                    break;
-                }
+                if (fi.isReadable())
+                    return file;
             }
         }
     }
 
-    if (cfgFileName.isEmpty() && m_settings->useHomeFile()) {
+    if (m_settings->useHomeFile()) {
         const QDir homeDirectory = QDir::home();
         QString file = homeDirectory.filePath(QLatin1String(".astylerc"));
-        if (QFile::exists(file)) {
-            cfgFileName = file;
-        } else {
-            file = homeDirectory.filePath(QLatin1String("astylerc"));
-            if (QFile::exists(file))
-                cfgFileName = file;
-        }
+        if (QFile::exists(file))
+            return file;
+        file = homeDirectory.filePath(QLatin1String("astylerc"));
+        if (QFile::exists(file))
+            return file;
     }
 
-    if (m_settings->useCustomStyle())
-        cfgFileName = m_settings->styleFileName(m_settings->customStyle());
+    return QString();
+}
 
-    if (cfgFileName.isEmpty()) {
-        BeautifierPlugin::showError(BeautifierPlugin::msgCannotGetConfigurationFile(
-                                        QLatin1String(Constants::ArtisticStyle::DISPLAY_NAME)));
+Command ArtisticStyle::command(const QString &cfgFile) const
+{
+    Command command;
+    command.setExecutable(m_settings->command());
+    command.addOption(QLatin1String("-q"));
+    command.addOption(QLatin1String("--options=") + cfgFile);
+
+    if (m_settings->version() > ArtisticStyleSettings::Version_2_03) {
+        command.setProcessing(Command::PipeProcessing);
+        command.setPipeAddsNewline(true);
+        command.setReturnsCRLF(Utils::HostOsInfo::isWindowsHost());
     } else {
-        Command command;
-        command.setExecutable(m_settings->command());
-        command.addOption(QLatin1String("-q"));
-        command.addOption(QLatin1String("--options=") + cfgFileName);
-
-        if (m_settings->version() > ArtisticStyleSettings::Version_2_03) {
-            command.setProcessing(Command::PipeProcessing);
-            command.setPipeAddsNewline(true);
-            command.setReturnsCRLF(Utils::HostOsInfo::isWindowsHost());
-        } else {
-            command.addOption(QLatin1String("%file"));
-        }
-
-        m_beautifierPlugin->formatCurrentFile(command);
+        command.addOption(QLatin1String("%file"));
     }
+
+    return command;
 }
 
 } // namespace ArtisticStyle
diff --git a/src/plugins/beautifier/artisticstyle/artisticstyle.h b/src/plugins/beautifier/artisticstyle/artisticstyle.h
index e362fdd5fa..c839f3480b 100644
--- a/src/plugins/beautifier/artisticstyle/artisticstyle.h
+++ b/src/plugins/beautifier/artisticstyle/artisticstyle.h
@@ -32,7 +32,7 @@
 #define BEAUTIFIER_ARTISTICSTYLE_H
 
 #include "../beautifierabstracttool.h"
-
+#include "../command.h"
 
 QT_FORWARD_DECLARE_CLASS(QAction)
 
@@ -63,6 +63,8 @@ private:
     BeautifierPlugin *m_beautifierPlugin;
     QAction *m_formatFile;
     ArtisticStyleSettings *m_settings;
+    QString configurationFile() const;
+    Command command(const QString &cfgFile) const;
 };
 
 } // namespace ArtisticStyle
diff --git a/src/plugins/beautifier/uncrustify/uncrustify.cpp b/src/plugins/beautifier/uncrustify/uncrustify.cpp
index 1e8aa673a8..594ee41784 100644
--- a/src/plugins/beautifier/uncrustify/uncrustify.cpp
+++ b/src/plugins/beautifier/uncrustify/uncrustify.cpp
@@ -102,7 +102,19 @@ QList<QObject *> Uncrustify::autoReleaseObjects()
 
 void Uncrustify::formatFile()
 {
-    QString cfgFileName;
+    const QString cfgFileName = configurationFile();
+    if (cfgFileName.isEmpty()) {
+        BeautifierPlugin::showError(BeautifierPlugin::msgCannotGetConfigurationFile(
+                                        QLatin1String(Constants::Uncrustify::DISPLAY_NAME)));
+    } else {
+        m_beautifierPlugin->formatCurrentFile(command(cfgFileName));
+    }
+}
+
+QString Uncrustify::configurationFile() const
+{
+    if (m_settings->useCustomStyle())
+        return m_settings->styleFileName(m_settings->customStyle());
 
     if (m_settings->useOtherFiles()) {
         if (const ProjectExplorer::Project *project
@@ -113,38 +125,33 @@ void Uncrustify::formatFile()
                 if (!file.endsWith(QLatin1String("cfg")))
                     continue;
                 const QFileInfo fi(file);
-                if (fi.isReadable() && fi.fileName() == QLatin1String("uncrustify.cfg")) {
-                    cfgFileName = file;
-                    break;
-                }
+                if (fi.isReadable() && fi.fileName() == QLatin1String("uncrustify.cfg"))
+                    return file;
             }
         }
     }
 
-    if (cfgFileName.isEmpty() && m_settings->useHomeFile()) {
+    if (m_settings->useHomeFile()) {
         const QString file = QDir::home().filePath(QLatin1String("uncrustify.cfg"));
         if (QFile::exists(file))
-            cfgFileName = file;
+            return file;
     }
 
-    if (m_settings->useCustomStyle())
-        cfgFileName = m_settings->styleFileName(m_settings->customStyle());
+    return QString();
+}
 
-    if (cfgFileName.isEmpty()) {
-        BeautifierPlugin::showError(BeautifierPlugin::msgCannotGetConfigurationFile(
-                                        QLatin1String(Constants::Uncrustify::DISPLAY_NAME)));
-    } else {
-        Command command;
-        command.setExecutable(m_settings->command());
-        command.setProcessing(Command::PipeProcessing);
-        command.addOption(QLatin1String("-l"));
-        command.addOption(QLatin1String("cpp"));
-        command.addOption(QLatin1String("-L"));
-        command.addOption(QLatin1String("1-2"));
-        command.addOption(QLatin1String("-c"));
-        command.addOption(cfgFileName);
-        m_beautifierPlugin->formatCurrentFile(command);
-    }
+Command Uncrustify::command(const QString &cfgFile) const
+{
+    Command command;
+    command.setExecutable(m_settings->command());
+    command.setProcessing(Command::PipeProcessing);
+    command.addOption(QLatin1String("-l"));
+    command.addOption(QLatin1String("cpp"));
+    command.addOption(QLatin1String("-L"));
+    command.addOption(QLatin1String("1-2"));
+    command.addOption(QLatin1String("-c"));
+    command.addOption(cfgFile);
+    return command;
 }
 
 } // namespace Uncrustify
diff --git a/src/plugins/beautifier/uncrustify/uncrustify.h b/src/plugins/beautifier/uncrustify/uncrustify.h
index 5c85aefea5..64f6b08f98 100644
--- a/src/plugins/beautifier/uncrustify/uncrustify.h
+++ b/src/plugins/beautifier/uncrustify/uncrustify.h
@@ -32,7 +32,7 @@
 #define BEAUTIFIER_UNCRUSTIFY_H
 
 #include "../beautifierabstracttool.h"
-
+#include "../command.h"
 
 QT_FORWARD_DECLARE_CLASS(QAction)
 
@@ -63,6 +63,8 @@ private:
     BeautifierPlugin *m_beautifierPlugin;
     QAction *m_formatFile;
     UncrustifySettings *m_settings;
+    QString configurationFile() const;
+    Command command(const QString &cfgFile) const;
 };
 
 } // namespace Uncrustify