[partition] Add a config option for allowing zfs encryption

src/modules/partition/Config.cpp

@@ -409,6 +409,8 @@ Config::setConfigurationMap( const QVariantMap& configurationMap )
     }
     setSwapChoice( m_initialSwapChoice );
 
+    m_allowZfsEncryption = CalamaresUtils::getBool( configurationMap, "allowZfsEncryption", true );
+
     m_allowManualPartitioning = CalamaresUtils::getBool( configurationMap, "allowManualPartitioning", true );
     m_requiredPartitionTableType = CalamaresUtils::getStringList( configurationMap, "requiredPartitionTableType" );
 

src/modules/partition/Config.h

@@ -159,6 +159,9 @@ public:
      */
     LuksGeneration luksFileSystemType() const { return m_luksFileSystemType; }
 
+    /// @brief If zfs encryption should be allowed
+    bool allowZfsEncryption() const { return m_allowZfsEncryption; }
+
 public Q_SLOTS:
     void setInstallChoice( int );  ///< Translates a button ID or so to InstallChoice
     void setInstallChoice( InstallChoice );
@@ -189,7 +192,7 @@ private:
     InstallChoice m_installChoice = NoChoice;
     qreal m_requiredStorageGiB = 0.0;  // May duplicate setting in the welcome module
     QStringList m_requiredPartitionTableType;
-
+    bool m_allowZfsEncryption = true;
     bool m_allowManualPartitioning = true;
 };
 

src/modules/partition/gui/ChoicePage.cpp

@@ -4,6 +4,7 @@
  *   SPDX-FileCopyrightText: 2017-2019 Adriaan de Groot <groot@kde.org>
  *   SPDX-FileCopyrightText: 2019 Collabora Ltd
  *   SPDX-FileCopyrightText: 2021 Anubhav Choudhary <ac.10edu@gmail.com>
+ *   SPDX-FileCopyrightText: 2023 Evan James <dalto@fastmail.com>
  *   SPDX-License-Identifier: GPL-3.0-or-later
  *
  *   Calamares is Free Software: see the License-Identifier above.
@@ -1759,7 +1760,17 @@ ChoicePage::createBootloaderPanel()
 bool
 ChoicePage::shouldShowEncryptWidget( Config::InstallChoice choice ) const
 {
+    bool suitableFS = true;
+    if ( !m_config->allowZfsEncryption()
+         && ( ( m_eraseFsTypesChoiceComboBox && m_eraseFsTypesChoiceComboBox->isVisible()
+                && m_eraseFsTypesChoiceComboBox->currentText() == "zfs" )
+              || ( m_replaceFsTypesChoiceComboBox && m_replaceFsTypesChoiceComboBox->isVisible()
+                   && m_replaceFsTypesChoiceComboBox->currentText() == "zfs" ) ) )
+    {
+        suitableFS = false;
+    }
+
     const bool suitableChoice
         = choice == InstallChoice::Erase || choice == InstallChoice::Alongside || choice == InstallChoice::Replace;
-    return suitableChoice && m_enableEncryptionWidget;
+    return suitableChoice && m_enableEncryptionWidget && suitableFS;
 }

src/modules/partition/gui/ChoicePage.h

@@ -3,6 +3,7 @@
  *   SPDX-FileCopyrightText: 2014-2016 Teo Mrnjavac <teo@kde.org>
  *   SPDX-FileCopyrightText: 2018-2019 Adriaan de Groot <groot@kde.org>
  *   SPDX-FileCopyrightText: 2019 Collabora Ltd
+ *   SPDX-FileCopyrightText: 2023 Evan James <dalto@fastmail.com>
  *   SPDX-License-Identifier: GPL-3.0-or-later
  *
  *   Calamares is Free Software: see the License-Identifier above.

src/modules/partition/gui/EncryptWidget.cpp

@@ -2,6 +2,7 @@
  *
  *   SPDX-FileCopyrightText: 2016 Teo Mrnjavac <teo@kde.org>
  *   SPDX-FileCopyrightText: 2020 Adriaan de Groot <groot@kde.org>
+ *   SPDX-FileCopyrightText: 2023 Evan James <dalto@fastmail.com>
  *   SPDX-License-Identifier: GPL-3.0-or-later
  *
  *   Calamares is Free Software: see the License-Identifier above.

src/modules/partition/gui/EncryptWidget.h

@@ -2,6 +2,7 @@
  *
  *   SPDX-FileCopyrightText: 2016 Teo Mrnjavac <teo@kde.org>
  *   SPDX-FileCopyrightText: 2020 Adriaan de Groot <groot@kde.org>
+ *   SPDX-FileCopyrightText: 2023 Evan James <dalto@fastmail.com>
  *   SPDX-License-Identifier: GPL-3.0-or-later
  *
  *   Calamares is Free Software: see the License-Identifier above.

src/modules/partition/partition.conf

@@ -78,6 +78,16 @@ userSwapChoices:
 #
 luksGeneration: luks1
 
+# This setting determines if encryption should be allowed when using zfs.  This
+# setting has no effect unless zfs support is provided.
+#
+# This setting is to handle the fact that some bootloaders(such as grub) do not
+# support zfs encryption.
+#
+# The default is true
+#
+# allowZfsEncryption: true
+
 # Correctly draw nested (e.g. logical) partitions as such.
 drawNestedPartitions:   false
 

src/modules/partition/partition.schema.yaml

@@ -1,4 +1,5 @@
 # SPDX-FileCopyrightText: 2020 Adriaan de Groot <groot@kde.org>
+# SPDX-FileCopyrightText: 2023 Evan James <dalto@fastmail.com>
 # SPDX-License-Identifier: GPL-3.0-or-later
 ---
 $schema: https://json-schema.org/schema#
@@ -14,6 +15,7 @@ properties:
     # ensureSuspendToDisk: { type: boolean, default: true }  # Legacy
     # neverCreateSwap: { type: boolean, default: false }  # Legacy
 
+    allowZfsEncryption: { type: boolean, default: true }
     drawNestedPartitions: { type: boolean, default: false }
     alwaysShowPartitionLabels: { type: boolean, default: true }