Add option to make load quiet, and add test for that

Author: ocaisa

.github/workflows/tests_eessi_module.yml

@@ -352,3 +352,8 @@ jobs:
           # Pipe the PS1 variable into grep to check for the pattern
           echo "$PS1"
           echo "$PS1" | grep "$GREP_PATTERN"
+
+          # Let's also check that quiet mode works
+          module load "EESSI/${{matrix.EESSI_VERSION}}" |& grep -q "Module for EESSI/${{matrix.EESSI_VERSION}} loaded successfully"
+          export EESSI_MODULE_QUIET_LOAD=1
+          module load "EESSI/${{matrix.EESSI_VERSION}}" |& ! grep -q "Module for EESSI/${{matrix.EESSI_VERSION}} loaded successfully"

init/modules/EESSI/2023.06.lua

@@ -221,7 +221,6 @@ local quiet_load = false
 if os.getenv("EESSI_MODULE_UPDATE_PS1") then
     local prompt = os.getenv("PS1")
     if prompt then
-        quiet_load = true
         pushenv("PS1", "{EESSI/" .. eessi_version .. "} " .. prompt)
     end
 end
@@ -234,7 +233,7 @@ if os.getenv("EESSI_MODULE_STICKY") then
 end
 
 if mode() == "load" then
-    if not quiet_load then
+    if not os.getenv("EESSI_MODULE_QUIET_LOAD") then
         LmodMessage(load_message)
     end
 end