better warning for distrobox container

TODO.md

@@ -80,6 +80,9 @@
   - The "paste" button will copy the clipboard into the text editor.
   - A second button "import" will use the import preview screen
  -[R] Launch test app_test.dart. Iterate until the test pass.
-- [ ] Add a uuid column to the table or FormulaElements, so it is not necessary to load all the formulas to find a formula by uuid. This will improve performance when updating and deleting.
+- [ ] Unify UUID and id of FormulaElement
+  - UUID is in memory
+  - id is in database
+  - remove id from database, add UUID to database
 - [ ] Make formulaSolver() asyncronous, and show a CircularProgressIndicator while the formula is being solved. Honor a new optinal parameter "timeout" in formulaSolver, that will throw a TimeoutException.
 - [ ] When importing FormulaElements, save the FormulaElements in the database (currently, they are only added to the Corpus in memory).

flutterw

@@ -7,6 +7,8 @@ BUILDCACHE=./.build-container-cache
 DOCKERFILE=./docker/Dockerfile
 IMAGE=d4rt-formulas-builder
 
+ALL_ARGS="$@"
+
 detect_container_manager(){
 
     if [ "$DOCKER" != "" ]
@@ -18,6 +20,12 @@ detect_container_manager(){
     elif command -v docker > /dev/null 2>&1
     then     
         DOCKER=docker
+    elif [ -n "$DISTROBOX_HOST_HOME" ]
+    then
+        echo "Detected distrobox, as DISTROBOX_HOST_HOME is defined"
+        echo "Please try to run this script as: "
+        echo "  distrobox-host-exec $0 $ALL_ARGS"
+        exit 3
     else
         echo "Error: no container manager detected (like 'docker' or 'podman'), please define DOCKER variable"
         exit 2