community/telegram-desktop: move from testing

The telegram developers made great progress in making packaging Telegram
Desktop a pleasant experience for Alpine Linux.

- There is now a full tarball available that includes all gitmodules
 that before were all checked out via tarballs in the source= variable.
- There is now support deciding whether to use system packages and
 linking it to the Telegram binary instead of statically linked checked
 out versions in the source tree.
- The build system is now cmake, which is much better than the previous
 GYP meta build-system mess.

Overall the change from the old to the new system reduced Alpine Linux's
load by 834 lines.

1 files changed, 24 insertions, 0 deletions

diff --git a/community/telegram-desktop/qt-plugin-path.patch b/community/telegram-desktop/qt-plugin-path.patch
new file mode 100644
index 0000000000..bb877f901d
--- /dev/null
+++ b/community/telegram-desktop/qt-plugin-path.patch
@@ -0,0 +1,24 @@
+diff --git a/Telegram/SourceFiles/core/launcher.cpp b/Telegram/SourceFiles/core/launcher.cpp
+index 2547342..8a14dcb 100644
+--- a/Telegram/SourceFiles/core/launcher.cpp
++++ b/Telegram/SourceFiles/core/launcher.cpp
+@@ -278,6 +278,19 @@ int Launcher::exec() {
+ 	Platform::start();
+ 	Ui::DisableCustomScaling();
+ 
++	// I don't know why path is not in QT_PLUGIN_PATH by default
++	QCoreApplication::addLibraryPath("/usr/lib/qt5/plugins");
++	// without this Telegram doesn't start on Ubuntu 17.04 due GTK errors
++	setenv("QT_STYLE_OVERRIDE", "qwerty", false);
++	// Telegram doesn't start when extraordinary theme is set, see launchpad.net/bugs/1680943
++	unsetenv("QT_QPA_PLATFORMTHEME");
++
++	// unset QT screen scale related envvars
++	unsetenv("QT_SCREEN_SCALE_FACTORS");
++	unsetenv("QT_AUTO_SCREEN_SCALE_FACTOR");
++	unsetenv("QT_SCALE_FACTOR");
++	unsetenv("QT_DEVICE_PIXEL_RATIO");
++
+ 	auto result = executeApplication();
+ 
+ 	DEBUG_LOG(("Telegram finished, result: %1").arg(result));