CLI: Fix keyfile from/to parameter collision in merge command

Rename 'k' to 'f' because 'k' is already used to specify the key for the target database of the merge

* Remove short -f option from keepassxc-cli.1
* Remove -f option from keepassxc-cli merge
* Add test cases covering cli options for merge
* Add functional test for merge with keys

share/docs/man/keepassxc-cli.1

@@ -117,7 +117,7 @@ Displays the program version.
 .IP "-d, --dry-run <path>"
 Prints the changes detected by the merge operation without making any changes to the database.
 
-.IP "-f, --key-file-from <path>"
+.IP "--key-file-from <path>"
 Sets the path of the key file for the second database.
 
 .IP "--no-password-from"

src/cli/Merge.cpp

@@ -30,8 +30,7 @@ const QCommandLineOption Merge::SameCredentialsOption =
                        QObject::tr("Use the same credentials for both database files."));
 
 const QCommandLineOption Merge::KeyFileFromOption =
-    QCommandLineOption(QStringList() << "k"
+    QCommandLineOption(QStringList() << "key-file-from",
-                                     << "key-file-from",
                        QObject::tr("Key file of the database to merge from."),
                        QObject::tr("path"));
 

tests/TestCli.cpp

@@ -1422,6 +1422,107 @@ void TestCli::testMerge()
     QCOMPARE(m_stdoutFile->readAll(), QByteArray(""));
 }
 
+void TestCli::testMergeWithKeys()
+{
+    Create createCmd;
+    QVERIFY(!createCmd.name.isEmpty());
+    QVERIFY(createCmd.getDescriptionLine().contains(createCmd.name));
+
+    Merge mergeCmd;
+    QVERIFY(!mergeCmd.name.isEmpty());
+    QVERIFY(mergeCmd.getDescriptionLine().contains(mergeCmd.name));
+
+    Kdbx4Writer writer;
+    Kdbx4Reader reader;
+
+    QScopedPointer<QTemporaryDir> testDir(new QTemporaryDir());
+
+    QString sourceDatabaseFilename = testDir->path() + "/testSourceDatabase.kdbx";
+    QString sourceKeyfilePath = testDir->path() + "/testSourceKeyfile.txt";
+
+    QString targetDatabaseFilename = testDir->path() + "/testTargetDatabase.kdbx";
+    QString targetKeyfilePath = testDir->path() + "/testTargetKeyfile.txt";
+
+    qint64 pos = m_stdoutFile->pos();
+
+    Utils::Test::setNextPassword("a");
+    createCmd.execute({"create", sourceDatabaseFilename, "-k", sourceKeyfilePath});
+
+    Utils::Test::setNextPassword("b");
+    createCmd.execute({"create", targetDatabaseFilename, "-k", targetKeyfilePath});
+
+    Utils::Test::setNextPassword("a");
+    auto sourceDatabase = QSharedPointer<Database>(
+        Utils::unlockDatabase(sourceDatabaseFilename, true, sourceKeyfilePath, "", Utils::STDOUT));
+    QVERIFY(sourceDatabase);
+
+    Utils::Test::setNextPassword("b");
+    auto targetDatabase = QSharedPointer<Database>(
+        Utils::unlockDatabase(targetDatabaseFilename, true, targetKeyfilePath, "", Utils::STDOUT));
+    QVERIFY(targetDatabase);
+
+    auto* rootGroup = new Group();
+    rootGroup->setName("root");
+    rootGroup->setUuid(QUuid::createUuid());
+    auto* group = new Group();
+    group->setUuid(QUuid::createUuid());
+    group->setParent(rootGroup);
+    group->setName("Internet");
+
+    auto* entry = new Entry();
+    entry->setUuid(QUuid::createUuid());
+    entry->setTitle("Some Website");
+    entry->setPassword("secretsecretsecret");
+    group->addEntry(entry);
+
+    sourceDatabase->setRootGroup(rootGroup);
+
+    auto* otherRootGroup = new Group();
+    otherRootGroup->setName("root");
+    otherRootGroup->setUuid(QUuid::createUuid());
+    auto* otherGroup = new Group();
+    otherGroup->setUuid(QUuid::createUuid());
+    otherGroup->setParent(otherRootGroup);
+    otherGroup->setName("Internet");
+
+    auto* otherEntry = new Entry();
+    otherEntry->setUuid(QUuid::createUuid());
+    otherEntry->setTitle("Some Website 2");
+    otherEntry->setPassword("secretsecretsecret 2");
+    otherGroup->addEntry(otherEntry);
+
+    targetDatabase->setRootGroup(otherRootGroup);
+
+    QFile sourceDatabaseFile(sourceDatabaseFilename);
+    sourceDatabaseFile.open(QIODevice::WriteOnly);
+    QVERIFY(writer.writeDatabase(&sourceDatabaseFile, sourceDatabase.data()));
+    sourceDatabaseFile.flush();
+    sourceDatabaseFile.close();
+
+    QFile targetDatabaseFile(targetDatabaseFilename);
+    targetDatabaseFile.open(QIODevice::WriteOnly);
+    QVERIFY(writer.writeDatabase(&targetDatabaseFile, targetDatabase.data()));
+    targetDatabaseFile.flush();
+    targetDatabaseFile.close();
+
+    pos = m_stdoutFile->pos();
+    Utils::Test::setNextPassword("b");
+    Utils::Test::setNextPassword("a");
+    mergeCmd.execute({"merge",
+                      "-k",
+                      targetKeyfilePath,
+                      "--key-file-from",
+                      sourceKeyfilePath,
+                      targetDatabaseFile.fileName(),
+                      sourceDatabaseFile.fileName()});
+
+    m_stdoutFile->seek(pos);
+    QList<QByteArray> lines = m_stdoutFile->readAll().split('\n');
+    QVERIFY(lines.contains(QString("Successfully merged %1 into %2.")
+                               .arg(sourceDatabaseFile.fileName(), targetDatabaseFile.fileName())
+                               .toUtf8()));
+}
+
 void TestCli::testMove()
 {
     Move moveCmd;

tests/TestCli.h

@@ -66,6 +66,7 @@ private slots:
     void testList();
     void testLocate();
     void testMerge();
+    void testMergeWithKeys();
     void testMove();
     void testOpen();
     void testRemove();