Fix: update install_rmg.sh to conditionally apply strict channel priority flag

Author: ranbenayoun

devtools/install_rmg.sh

@@ -127,12 +127,18 @@ if [[ "$MODE" == "source" ]]; then
         exit 1
     fi
 
+    # Prepare flags - --strict-channel-priority only works with mamba/micromamba
+    CHANNEL_PRIORITY_FLAG=""
+    if [[ "$COMMAND_PKG" != "conda" ]]; then
+        CHANNEL_PRIORITY_FLAG="--strict-channel-priority"
+    fi
+
     if $COMMAND_PKG env list | awk '{print $1}' | grep -qx "$ENV_NAME"; then
         echo ">>> Updating existing environment: $ENV_NAME"
-        $COMMAND_PKG env update -n "$ENV_NAME" -f environment.yml --prune --strict-channel-priority
+        $COMMAND_PKG env update -n "$ENV_NAME" -f environment.yml --prune $CHANNEL_PRIORITY_FLAG
     else
       echo ">>> Creating new environment: $ENV_NAME"
-        $COMMAND_PKG env create -n "$ENV_NAME" -f environment.yml -y --strict-channel-priority
+        $COMMAND_PKG env create -n "$ENV_NAME" -f environment.yml -y $CHANNEL_PRIORITY_FLAG
     fi
 
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