Include schema files in Linux standalone

If we don't include these schema files and set the appropriate
environment variable, then the standalone will use the system schema
files. If these are not compatible with the current versions of
packages that we use, then we can get an error.

Author: jclarkeSTFC

buildconfig/CMake/LinuxPackageScripts.cmake

@@ -92,6 +92,15 @@ if [ -n \"\$1\" ] && [ \"\$1\" = \"--debug\" ]; then
 fi"
 )
 
+# Without specifying these schema files, the standalone can fail to launch on Linux. Inside a conda environment this
+# environment variable is set by something else.
+set(GSETTINGS_SCHEMA_DEFINITIONS
+    "# Specify path to schema files
+if [ -z \"${GSETTINGS_SCHEMA_DIR}\" ]; then
+    GSETTINGS_PATH=\"GSETTINGS_SCHEMA_DIR=${INSTALLDIR}/share/glib-2.0/schemas \"
+fi"
+)
+
 set(ERROR_CMD "-m mantidqt.dialogs.errorreports.main --exitcode=\$?")
 
 # Local dev version

buildconfig/CMake/Packaging/launch_mantidworkbench.sh.in

@@ -17,8 +17,11 @@ fi
 
 @GDB_DEFINITIONS@
 
+@GSETTINGS_SCHEMA_DEFINITIONS@
+
 # Launch the workbench
 LD_PRELOAD=${LOCAL_PRELOAD} \
     PYTHONPATH=${LOCAL_PYTHONPATH} @QT_QPA@ \
+    $GSETTINGS_PATH \
     @WRAPPER_PREFIX@$VGLRUN $GDB \
     @PYTHON_EXEC_LOCAL@@PYTHON_ARGS@ @MANTIDWORKBENCH_EXEC@ $SINGLEPROCESS "$@"@WRAPPER_POSTFIX@

docs/source/release/v6.12.0/Workbench/Bugfixes/38160.rst

@@ -0,0 +1 @@
+- Fixed the standalone not launching on Linux, especially IDAaaS.

installers/conda/common/common.sh

@@ -29,6 +29,7 @@ function trim_conda() {
   mv "$bundle_conda_prefix"/share "$bundle_conda_prefix"/share_tmp
   mkdir "$bundle_conda_prefix"/share
   mv "$bundle_conda_prefix"/share_tmp/doc "$bundle_conda_prefix"/share/
+  mv "$bundle_conda_prefix"/share_tmp/glib-2.0/schemas "$bundle_conda_prefix"/share/glib-2.0/
   # Heavily cut down translations
   mv "$bundle_conda_prefix"/translations "$bundle_conda_prefix"/translations_tmp
   mkdir -p "$bundle_conda_prefix"/translations/qtwebengine_locales