feat: #30 migrate data from older cantata versions

nullobsi · Aug 7, 2024 · 61bad5e · 61bad5e
1 parent fcba26f
commit 61bad5e
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Showing 2 changed files with 85 additions and 12 deletions.
diff --git a/gui/initialsettingswizard.cpp b/gui/initialsettingswizard.cpp
@@ -35,9 +35,11 @@
 #include "findmpddialog.h"
 #endif
 #include <QDir>
+#include <QProcess>
 #include <QScreen>
 #include <QStandardPaths>
 #include <QTimer>
+#include <filesystem>
 
 enum Pages {
  PAGE_INTRO,
@@ -113,6 +115,26 @@ InitialSettingsWizard::InitialSettingsWizard(QWidget* p)
  hostLayout->insertWidget(hostLayout->count(), discoveryButton);
  connect(discoveryButton, &QPushButton::clicked, this, &InitialSettingsWizard::detectMPDs);
 #endif
+
+ // Note that this type of migration is only relevant on Linux/other
+ // Unix systems.
+#if !Q_OS_WIN && !Q_OS_MACOS
+ auto oldConfig = QDir(QStandardPaths::writableLocation(QStandardPaths::GenericConfigLocation) + "/cantata");
+
+ if (oldConfig.exists()) {
+ migrateDataBox->setChecked(true);
+ }
+ else {
+ migrateDataBox->setChecked(false);
+ migrateDataBox->setDisabled(true);
+ migrateDataBoxLabel->setDisabled(true);
+ migrateDataBoxLabel->setText(tr("Data from an older version of Cantata is missing or cannot be located."));
+ }
+#else
+ migrateDataBox->hide();
+ migrateDataBoxLabel->hide();
+ migrateDataBox->setChecked(false);
+#endif
 }
 
 InitialSettingsWizard::~InitialSettingsWizard()
@@ -200,6 +222,55 @@ void InitialSettingsWizard::pageChanged(int p)
  fetchCovers->setChecked(Settings::self()->fetchCovers());
  }
  }
+ if (PAGE_END == p) {
+ // Perform data migration.
+ if (migrateDataBox->isChecked()) {
+ auto oldConfig = QDir(QStandardPaths::writableLocation(QStandardPaths::GenericConfigLocation) + "/cantata");
+ auto oldCache = QDir(QStandardPaths::writableLocation(QStandardPaths::GenericCacheLocation) + "/cantata");
+ auto oldData = QDir(QStandardPaths::writableLocation(QStandardPaths::GenericDataLocation) + "/cantata");
+
+ auto newConfig = QDir(QStandardPaths::writableLocation(QStandardPaths::GenericConfigLocation) + "/Cantata");
+ auto newCache = QDir(QStandardPaths::writableLocation(QStandardPaths::GenericCacheLocation) + "/Cantata");
+ auto newData = QDir(QStandardPaths::writableLocation(QStandardPaths::GenericDataLocation) + "/Cantata");
+
+ newConfig.removeRecursively();
+ newCache.removeRecursively();
+ newData.removeRecursively();
+
+ auto copyOpts = std::filesystem::copy_options::overwrite_existing | std::filesystem::copy_options::recursive;
+
+ try {
+ std::filesystem::copy(oldConfig.absolutePath().toStdString(), newConfig.absolutePath().toStdString(), copyOpts);
+ std::filesystem::rename(newConfig.absolutePath().toStdString() + "/cantata.conf", newConfig.absolutePath().toStdString() + "/Cantata.conf");
+ }
+ catch (std::filesystem::filesystem_error& e) {
+ qWarning() << "Failed to migrate config.";
+ qWarning() << e.what();
+ }
+
+ try {
+ std::filesystem::copy(oldCache.absolutePath().toStdString(), newCache.absolutePath().toStdString(), copyOpts);
+ }
+ catch (std::filesystem::filesystem_error& e) {
+ qWarning() << "Failed to migrate cache.";
+ qWarning() << e.what();
+ }
+
+ try {
+ std::filesystem::copy(oldData.absolutePath().toStdString(), newData.absolutePath().toStdString(), copyOpts);
+ }
+ catch (std::filesystem::filesystem_error& e) {
+ qWarning() << "Failed to migrate data.";
+ qWarning() << e.what();
+ }
+
+ auto app = QCoreApplication::applicationFilePath();
+ auto args = QCoreApplication::arguments();
+ auto pwd = QDir::currentPath();
+ QProcess::startDetached(app, args, pwd);
+ QCoreApplication::exit();
+ }
+ }
  button(NextButton)->setEnabled(PAGE_END != p);
 }
 
@@ -255,19 +326,20 @@ void InitialSettingsWizard::reject()
  QDialog::reject();
 }
 
-int InitialSettingsWizard::nextId() const {
- switch(currentId()) {
- case PAGE_INTRO:
- if (migrateDataBox->isChecked()) {
- return PAGE_END;
- }
- return PAGE_CONNECTION;
- case PAGE_CONNECTION:
- return PAGE_COVERS;
- case PAGE_COVERS:
+int InitialSettingsWizard::nextId() const
+{
+ switch (currentId()) {
+ case PAGE_INTRO:
+ if (migrateDataBox->isChecked()) {
  return PAGE_END;
- default:
- return -1;
+ }
+ return PAGE_CONNECTION;
+ case PAGE_CONNECTION:
+ return PAGE_COVERS;
+ case PAGE_COVERS:
+ return PAGE_END;
+ default:
+ return -1;
  }
 }
 

diff --git a/gui/main.cpp b/gui/main.cpp
@@ -437,6 +437,7 @@ int main(int argc, char* argv[])
  if (QDialog::Rejected == wz.exec()) {
  return 0;
  }
+ Settings::self()->save();
  }
  else if (cmdLineParser.isSet(collectionOption)) {
  QString col = cmdLineParser.value(collectionOption);