Cloud storage: create preference entry for base URL

This just deals with the mechanics. There is no UI to enter / change this
URL (and that's intentional), neither is it used, yet.

Signed-off-by: Dirk Hohndel <dirk@hohndel.org>

pref.h

@@ -28,6 +28,8 @@ struct preferences {
 	const char *divelist_font;
 	const char *default_filename;
 	const char *default_cylinder;
+	const char *cloud_base_url;
+	const char *cloud_git_url;
 	double font_size;
 	partial_pressure_graphs_t pp_graphs;
 	short mod;

qt-ui/preferences.cpp

@@ -431,6 +431,9 @@ void PreferencesDialog::syncSettings()
 	SAVE_OR_REMOVE("cloud_verification_status", default_prefs.cloud_verification_status, prefs.cloud_verification_status);
 	SAVE_OR_REMOVE("cloud_background_sync", default_prefs.cloud_background_sync, ui.cloud_background_sync->isChecked());
 
+	// at this point we intentionally do not have a UI for changing this
+	// it could go into some sort of "advanced setup" or something
+	SAVE_OR_REMOVE("cloud_base_url", default_prefs.cloud_base_url, prefs.cloud_base_url);
 	s.endGroup();
 	loadSettings();
 	emit settingsChanged();
@@ -563,6 +566,11 @@ void PreferencesDialog::loadSettings()
 	}
 	GET_INT("cloud_verification_status", cloud_verification_status);
 	GET_BOOL("cloud_background_sync", cloud_background_sync);
+
+	// creating the git url here is simply a convenience when C code wants
+	// to compare against that git URL - it's always derived from the base URL
+	GET_TXT("cloud_base_url", cloud_base_url);
+	prefs.cloud_git_url = strdup(qPrintable(QString(prefs.cloud_base_url) + "/git"));
 	s.endGroup();
 }
 

subsurfacestartup.c

@@ -5,6 +5,7 @@
 #include "gettext.h"
 struct preferences prefs;
 struct preferences default_prefs = {
+	.cloud_base_url = "https://cloud.subsurface-divelog.org/",
 	.units = SI_UNITS,
 	.unit_system = METRIC,
 	.coordinates_traditional = true,