[users] adopt upstream changes

- Change permissions of avatar file after copying
- Use Calamares utils rather than QProcess
- Remove modal dialog and show warning message instead

src/modules/users/gui/UsersPage.cpp

@@ -193,6 +193,8 @@ UsersPage::addUserClicked() {
             ui->rootPw->setText(dlg->password);
             ui->confirmRootPw->setText(dlg->password);
         }
+
+        ui->labelNoUser->hide();
     }
 
     delete dlg;
@@ -272,7 +274,7 @@ UsersPage::createJobs( const QStringList& defaultGroupsList )
                     m_avatarFilePath.replace("~", home);
             }
 
-            j = new SetAvatarJob( user->avatarFile, m_avatarFilePath );
+            j = new SetAvatarJob( user->avatarFile, m_avatarFilePath, user->username, defaultGroupsList[0] );
             list.append( Calamares::job_ptr(j) );
         }
     }
@@ -292,12 +294,8 @@ UsersPage::onActivate()
 {
     emit checkReady( isReady() );
 
-    // If there is no user yet, open the dialog as soon as the
-    // page is enabled. This makes it easy for people who want
-    // to create one user.
-    if (m_userModel.rowCount() == 0) {
-        addUserClicked();
-    }
+    ui->labelNoUser->setText( QObject::tr( "Please create at least one user." ) );
+    ui->labelNoUser->show();
 }
 
 void

src/modules/users/gui/page_usersetup.ui

@@ -7,7 +7,7 @@
     <x>0</x>
     <y>0</y>
     <width>694</width>
-    <height>475</height>
+    <height>447</height>
    </rect>
   </property>
   <property name="windowTitle">
@@ -109,7 +109,7 @@
         <x>0</x>
         <y>0</y>
         <width>678</width>
-        <height>249</height>
+        <height>197</height>
        </rect>
       </property>
       <property name="sizePolicy">
@@ -270,6 +270,18 @@
      </item>
     </layout>
    </item>
+   <item>
+    <widget class="QLabel" name="labelNoUser">
+     <property name="font">
+      <font>
+       <italic>true</italic>
+      </font>
+     </property>
+     <property name="text">
+      <string/>
+     </property>
+    </widget>
+   </item>
   </layout>
  </widget>
  <resources/>

src/modules/users/jobs/SetAvatarJob.cpp

@@ -19,16 +19,19 @@
 #include <jobs/SetAvatarJob.h>
 
 #include "GlobalStorage.h"
+#include "utils/CalamaresUtilsSystem.h"
 #include "utils/Logger.h"
 #include "JobQueue.h"
 
 #include <QFile>
 #include <QDir>
 
-SetAvatarJob::SetAvatarJob(const QString &avatarFile, const QString &destPath)
+SetAvatarJob::SetAvatarJob(const QString &avatarFile, const QString &destPath, const QString& owner, const QString& group)
     : Calamares::Job()
     , m_avatarFile(avatarFile)
     , m_destPath(destPath)
+    , m_owner(owner)
+    , m_group(group)
 {
 }
 
@@ -70,15 +73,23 @@ Calamares::JobResult SetAvatarJob::exec()
 
     QString destination( destDir + m_destPath );
     QFile avatarFile( m_avatarFile );
+    QString userGroup( m_owner + ":" + m_group );
 
+    // We do not return errors in case of issues with the avatar, as it is not
+    // critical enough to stop the whole installation.
     if (!avatarFile.exists()) {
         cLog() << "Avatar file does not exist";
-        return Calamares::JobResult::error( tr("Avatar file does not exist") );
     }
-
     if (!avatarFile.copy(destination)) {
-        cLog() << "Error copying:" << avatarFile.errorString();
-        return Calamares::JobResult::error( tr("Error copying") );
+        cLog() << "Error copying avatar:" << avatarFile.errorString();
+    } else {
+        int ec = CalamaresUtils::System::instance()->
+                targetEnvCall({ "chown",
+                                userGroup,
+                                m_destPath });
+        if ( ec ) {
+            cLog() << "Error changing ownership of the avatar file. Exit code: " << ec;
+        }
     }
 
     return Calamares::JobResult::ok();

src/modules/users/jobs/SetAvatarJob.h

@@ -25,7 +25,7 @@ class SetAvatarJob : public Calamares::Job
 {
     Q_OBJECT
 public:
-    SetAvatarJob( const QString& avatarFile, const QString& destPath );
+    SetAvatarJob( const QString& avatarFile, const QString& destPath, const QString& owner, const QString& group );
     QString prettyName() const override;
     QString prettyDescription() const override;
     QString prettyStatusMessage() const override;
@@ -33,6 +33,9 @@ public:
 private:
     const QString m_avatarFile;
     const QString m_destPath;
+    // Owner and group of the destination avatar file.
+    const QString m_owner;
+    const QString m_group;
 };