Remove existing installation from command line

Add new "purge" command to command line interface. This removes
all components and all program directory contents. Add test
function to unit tests.

Task-number: QTIFW-1574
Change-Id: Iccd4a052c7e2fc8eec0a6ae2b5a93c0c607604cb
Reviewed-by: Leena Miettinen <riitta-leena.miettinen@qt.io>
Reviewed-by: Katja Marttila <katja.marttila@qt.io>

4 files changed, 26 insertions, 3 deletions

diff --git a/src/libs/installer/commandlineparser.cpp b/src/libs/installer/commandlineparser.cpp
index c82dde944..8c0fb1ee7 100644
--- a/src/libs/installer/commandlineparser.cpp
+++ b/src/libs/installer/commandlineparser.cpp
@@ -53,8 +53,10 @@ CommandLineParser::CommandLineParser()
             .arg(CommandLineOptions::scRemoveShort, CommandLineOptions::scRemoveLong)
         + QString::fromLatin1("\t%1, %2 - list currently installed packages\n")
             .arg(CommandLineOptions::scListShort, CommandLineOptions::scListLong)
-        + QString::fromLatin1("\t%1, %2 - search available packages - <regexp>")
-            .arg(CommandLineOptions::scSearchShort, CommandLineOptions::scSearchLong);
+        + QString::fromLatin1("\t%1, %2 - search available packages - <regexp>\n")
+            .arg(CommandLineOptions::scSearchShort, CommandLineOptions::scSearchLong)
+        + QString::fromLatin1("\t%1, %2 - uninstall all packages and remove entire program directory")
+            .arg(CommandLineOptions::scPurgeShort, CommandLineOptions::scPurgeLong);
 
     m_parser.setApplicationDescription(preformatted);
 
diff --git a/src/libs/installer/constants.h b/src/libs/installer/constants.h
index 37eb9600a..8f3291b04 100644
--- a/src/libs/installer/constants.h
+++ b/src/libs/installer/constants.h
@@ -124,6 +124,8 @@ static const QLatin1String scListShort("li");
 static const QLatin1String scListLong("list");
 static const QLatin1String scSearchShort("se");
 static const QLatin1String scSearchLong("search");
+static const QLatin1String scPurgeShort("pr");
+static const QLatin1String scPurgeLong("purge");
 
 // Repository management options
 static const QLatin1String scAddRepositoryShort("ar");
@@ -186,7 +188,9 @@ static const QStringList scCommandLineInterfaceOptions = {
     scListShort,
     scListLong,
     scSearchShort,
-    scSearchLong
+    scSearchLong,
+    scPurgeShort,
+    scPurgeLong
 };
 
 } // namespace CommandLineOptions
diff --git a/src/libs/installer/packagemanagercore.cpp b/src/libs/installer/packagemanagercore.cpp
index 55a143ceb..0a5eec513 100644
--- a/src/libs/installer/packagemanagercore.cpp
+++ b/src/libs/installer/packagemanagercore.cpp
@@ -2219,6 +2219,22 @@ bool PackageManagerCore::uninstallComponentsSilently(const QStringList& componen
 }
 
 /*!
+    Uninstalls all installed components without GUI and removes
+    the program directory. Returns \c true if components are
+    uninstalled successfully, otherwise returns \c false.
+*/
+bool PackageManagerCore::removeInstallationSilently()
+{
+    if (d->runningProcessesFound())
+        throw Error(tr("Running processes found."));
+
+    autoRejectMessageBoxes();
+
+    setCompleteUninstallation(true);
+    return run();
+}
+
+/*!
     Installs the selected components \a components without displaying a user
     interface. Virtual components cannot be installed unless made visible with
     --show-virtual-components. AutoDependOn nor non-checkable components cannot
diff --git a/src/libs/installer/packagemanagercore.h b/src/libs/installer/packagemanagercore.h
index 82ab779c3..979ff50e6 100644
--- a/src/libs/installer/packagemanagercore.h
+++ b/src/libs/installer/packagemanagercore.h
@@ -221,6 +221,7 @@ public:
     bool installSelectedComponentsSilently(const QStringList& components);
     bool installDefaultComponentsSilently();
     bool uninstallComponentsSilently(const QStringList& components);
+    bool removeInstallationSilently();
 
     // convenience
     Q_INVOKABLE void setInstaller();