[users] Move setRootPassword to Config

- this really controls whether a root password is written during installtion,
  so rename to writeRootPassword in the code.

src/modules/users/Config.cpp

@@ -337,4 +337,7 @@ Config::setConfigurationMap( const QVariantMap& configurationMap )
     setSudoersGroup( CalamaresUtils::getString( configurationMap, "sudoersGroup" ) );
 
     m_doAutoLogin = CalamaresUtils::getBool( configurationMap, "doAutologin", false );
+
+    m_writeRootPassword = CalamaresUtils::getBool( configurationMap, "setRootPassword", true );
+    Calamares::JobQueue::instance()->globalStorage()->insert( "setRootPassword", m_writeRootPassword );
 }

src/modules/users/Config.h

@@ -74,6 +74,8 @@ public:
 
     /// Should the user be automatically logged-in?
     bool doAutoLogin() const { return m_doAutoLogin; }
+    /// Should the root password be written (if false, no password is set and the root account is disabled for login)
+    bool writeRootPassword() const { return m_writeRootPassword; }
 
     static const QStringList& forbiddenLoginNames();
     static const QStringList& forbiddenHostNames();
@@ -124,6 +126,7 @@ private:
     QString m_loginName;
     QString m_hostName;
     bool m_doAutoLogin = false;
+    bool m_writeRootPassword = true;
 
     bool m_customLoginName = false;
     bool m_customHostName = false;

src/modules/users/UsersPage.cpp

@@ -105,7 +105,6 @@ UsersPage::UsersPage( Config* config, QWidget* parent )
     , m_readyHostname( false )
     , m_readyPassword( false )
     , m_readyRootPassword( false )
-    , m_writeRootPassword( true )
 {
     ui->setupUi( this );
 
@@ -119,22 +118,19 @@ UsersPage::UsersPage( Config* config, QWidget* parent )
         onRootPasswordTextChanged( ui->textBoxRootPassword->text() );
         checkReady( isReady() );
     } );
-    connect( ui->checkBoxReusePassword, &QCheckBox::stateChanged, this, [this]( int checked ) {
+    connect( ui->checkBoxReusePassword, &QCheckBox::stateChanged, this, [this]( const int checked ) {
         /* When "reuse" is checked, hide the fields for explicitly
          * entering the root password. However, if we're going to
          * disable the root password anyway, hide them all regardless of
          * the checkbox -- so when writeRoot is false, checked needs
          * to be true, to hide them all.
          */
-        if ( !m_writeRootPassword )
-        {
-            checked = true;
-        }
-        ui->labelChooseRootPassword->setVisible( !checked );
-        ui->labelRootPassword->setVisible( !checked );
-        ui->labelRootPasswordError->setVisible( !checked );
-        ui->textBoxRootPassword->setVisible( !checked );
-        ui->textBoxVerifiedRootPassword->setVisible( !checked );
+        const bool visible = m_config->writeRootPassword() ? !checked : false;
+        ui->labelChooseRootPassword->setVisible( visible );
+        ui->labelRootPassword->setVisible( visible );
+        ui->labelRootPasswordError->setVisible( visible );
+        ui->textBoxRootPassword->setVisible( visible );
+        ui->textBoxVerifiedRootPassword->setVisible( visible );
         checkReady( isReady() );
     } );
 
@@ -154,7 +150,7 @@ UsersPage::UsersPage( Config* config, QWidget* parent )
     } );
     connect( config, &Config::autoLoginChanged, ui->checkBoxDoAutoLogin, &QCheckBox::setChecked );
 
-    setWriteRootPassword( true );
+    ui->checkBoxReusePassword->setVisible( m_config->writeRootPassword() );
     ui->checkBoxReusePassword->setChecked( true );
     ui->checkBoxValidatePassword->setChecked( true );
 
@@ -196,18 +192,16 @@ bool
 UsersPage::isReady()
 {
     bool readyFields = m_readyFullName && m_readyHostname && m_readyPassword && m_readyUsername;
-    if ( !m_writeRootPassword || ui->checkBoxReusePassword->isChecked() )
-    {
-        return readyFields;
-    }
-
-    return readyFields && m_readyRootPassword;
+    // If we're going to write a root password, we need a valid one (or reuse the user's password)
+    readyFields
+        &= m_config->writeRootPassword() ? ( m_readyRootPassword || ui->checkBoxReusePassword->isChecked() ) : true;
+    return readyFields;
 }
 
 QString
 UsersPage::getRootPassword() const
 {
-    if ( m_writeRootPassword )
+    if ( m_config->writeRootPassword() )
     {
         if ( ui->checkBoxReusePassword->isChecked() )
         {
@@ -248,7 +242,7 @@ UsersPage::createJobs( const QStringList& defaultGroupsList )
                            defaultGroupsList );
     list.append( Calamares::job_ptr( j ) );
 
-    if ( m_writeRootPassword )
+    if ( m_config->writeRootPassword() )
     {
         gs->insert( "reuseRootPassword", ui->checkBoxReusePassword->isChecked() );
     }
@@ -274,14 +268,6 @@ UsersPage::onActivate()
 }
 
 
-void
-UsersPage::setWriteRootPassword( bool write )
-{
-    m_writeRootPassword = write;
-    ui->checkBoxReusePassword->setVisible( write );
-}
-
-
 void
 UsersPage::onFullNameTextEdited( const QString& fullName )
 {

src/modules/users/UsersPage.h

@@ -51,7 +51,6 @@ public:
 
     void onActivate();
 
-    void setWriteRootPassword( bool show );
     void setPasswordCheckboxVisible( bool visible );
     void setValidatePasswordDefault( bool checked );
     void setReusePasswordDefault( bool checked );
@@ -101,8 +100,6 @@ private:
     bool m_readyHostname;
     bool m_readyPassword;
     bool m_readyRootPassword;
-
-    bool m_writeRootPassword;
 };
 
 #endif  // USERSPAGE_H

src/modules/users/UsersViewStep.cpp

@@ -176,10 +176,6 @@ UsersViewStep::setConfigurationMap( const QVariantMap& configurationMap )
         m_defaultGroups = QStringList { "lp", "video", "network", "storage", "wheel", "audio" };
     }
 
-    bool setRootPassword = getBool( configurationMap, "setRootPassword", true );
-    Calamares::JobQueue::instance()->globalStorage()->insert( "setRootPassword", setRootPassword );
-
-    m_widget->setWriteRootPassword( setRootPassword );
     m_widget->setReusePasswordDefault( getBool( configurationMap, "doReusePassword", false ) );
 
     if ( configurationMap.contains( "passwordRequirements" )