moved download_data.sh to seperate module downloader

downloader/activate.sh

@@ -0,0 +1,27 @@
+#!/bin/sh
+
+# Exit if any of the command doesn't exit with code 0
+set -e
+
+test -z "$EXEC_DIR" && EXEC_DIR=.
+test -z "$VENV_PATH" && VENV_PATH="$EXEC_DIR/venv"
+
+activate(){
+	if [ ! -d "$VENV_PATH" ]; then
+		echo 'Creating python virtual environnement'
+		python -m venv "$VENV_PATH"
+		echo 'Activating virtual environnement'
+		activate
+		echo 'Updating base pip packages'
+		python -m pip install -U setuptools pip
+		echo 'Installing requirements'
+		pip install -r requirements.txt
+	elif [ -f "$VENV_PATH"/Scripts/activate ]; then . "$VENV_PATH"/Scripts/activate
+	elif [ -f "$VENV_PATH"/bin/activate ]; then . "$VENV_PATH"/bin/activate
+	else
+		echo 'Python virtual environnement not detected'
+		exit 1
+	fi
+}
+
+activate