Install version is not persistent in breeze

BREEZE.rst

@@ -929,13 +929,11 @@ This is the current syntax for  `./breeze <./breeze>`_:
   ****************************************************************************************************
 
   -a, --install-airflow-version <INSTALL_AIRFLOW_VERSION>
-          If different than 'current' removes the source-installed airflow and installs a
+          If specified, removes the source-installed airflow and installs a
           released version of Airflow instead. One of:
 
                  current 1.10.9 1.10.8 1.10.7 1.10.6 1.10.5 1.10.4 1.10.3 1.10.2
 
-          Default: current.
-
   ****************************************************************************************************
    Database versions
   ****************************************************************************************************

breeze

@@ -125,7 +125,7 @@ function setup_default_breeze_variables() {
 
     # If install released airflow is set to specified version, then the source version of airflow
     # is removed and the specified version of airflow is installed from pypi
-    export INSTALL_AIRFLOW_VERSION=${INSTALL_AIRFLOW_VERSION:="current"}
+    export INSTALL_AIRFLOW_VERSION=${INSTALL_AIRFLOW_VERSION:=""}
 
     # Determine version of the Airflow from version.py
     AIRFLOW_VERSION=$(grep version "airflow/version.py" | awk '{print $3}' | sed "s/['+]//g")
@@ -143,7 +143,6 @@ function setup_default_breeze_variables() {
     _BREEZE_DEFAULT_BACKEND="sqlite"
     _BREEZE_DEFAULT_KUBERNETES_MODE="git_mode"
     _BREEZE_DEFAULT_KUBERNETES_VERSION="v1.15.3"
-    _BREEZE_DEFAULT_INSTALL_AIRFLOW_VERSION="current"
     _BREEZE_DEFAULT_POSTGRES_VERSION="9.6"
     _BREEZE_DEFAULT_MYSQL_VERSION="5.7"
 
@@ -426,7 +425,7 @@ function prepare_command_files() {
         COMPOSE_FILE=${COMPOSE_FILE}:${FORWARD_CREDENTIALS_DOCKER_COMPOSE_FILE}
     fi
 
-    if [[ ${INSTALL_AIRFLOW_VERSION} != "current" ]]; then
+    if [[ ${INSTALL_AIRFLOW_VERSION} != "" ]]; then
         COMPOSE_FILE=${COMPOSE_FILE}:${REMOVE_SOURCES_DOCKER_COMPOSE_FILE}
     fi
 
@@ -1196,13 +1195,11 @@ $(print_star_line)
 $(print_star_line)
 
 -a, --install-airflow-version <INSTALL_AIRFLOW_VERSION>
-        If different than 'current' removes the source-installed airflow and installs a
+        If specified, removes the source-installed airflow and installs a
         released version of Airflow instead. One of:
 
 ${ALLOWED_INSTALL_AIRFLOW_VERSIONS}
 
-        Default: ${_BREEZE_DEFAULT_INSTALL_AIRFLOW_VERSION:=}.
-
 $(print_star_line)
  Database versions
 $(print_star_line)
@@ -1345,7 +1342,6 @@ function check_and_save_all_params() {
     check_and_save_allowed_param "BACKEND"  "backend" "--backend"
     check_and_save_allowed_param "KUBERNETES_MODE"  "Kubernetes mode" "--kubernetes-mode"
     check_and_save_allowed_param "KUBERNETES_VERSION"  "Kubernetes version" "--kubernetes-version"
-    check_and_save_allowed_param "INSTALL_AIRFLOW_VERSION"  "Install airflow version" "--install-airflow-version"
     check_and_save_allowed_param "POSTGRES_VERSION"  "Postgres version" "--postgres-version"
     check_and_save_allowed_param "MYSQL_VERSION"  "Mysql version" "--mysql-version"
 

scripts/ci/ci_run_airflow_testing.sh

@@ -47,7 +47,7 @@ export VERBOSE_COMMANDS=${VERBOSE_COMMANDS:="false"}
 export FORWARD_CREDENTIALS=${FORWARD_CREDENTIALS:="false"}
 
 # Installs different airflow version than current from the sources
-export INSTALL_AIRFLOW_VERSION=${INSTALL_AIRFLOW_VERSION:="current"}
+export INSTALL_AIRFLOW_VERSION=${INSTALL_AIRFLOW_VERSION:=""}
 
 if [[ ${MOUNT_LOCAL_SOURCES} == "true" ]]; then
     DOCKER_COMPOSE_LOCAL=("-f" "${MY_DIR}/docker-compose/local.yml")
@@ -59,7 +59,7 @@ if [[ ${FORWARD_CREDENTIALS} == "true" ]]; then
     DOCKER_COMPOSE_LOCAL+=("-f" "${MY_DIR}/docker-compose/forward-credentials.yml")
 fi
 
-if [[ ${INSTALL_AIRFLOW_VERSION} != "current" ]]; then
+if [[ ${INSTALL_AIRFLOW_VERSION} != "" ]]; then
     DOCKER_COMPOSE_LOCAL+=("-f" "${MY_DIR}/docker-compose/remove-sources.yml")
 fi
 

scripts/ci/in_container/entrypoint_ci.sh

@@ -63,7 +63,7 @@ else
     export RUN_AIRFLOW_1_10="false"
 fi
 
-if [[ ${INSTALL_AIRFLOW_VERSION} == "current" ]]; then
+if [[ ${INSTALL_AIRFLOW_VERSION} == "" ]]; then
     if [[ ! -d "${AIRFLOW_SOURCES}/airflow/www/node_modules" ]]; then
         echo
         echo "Installing node modules as they are not yet installed (Sources mounted from Host)"

scripts/ci/in_container/run_test_package_installation.sh

@@ -19,7 +19,7 @@
 . "$( dirname "${BASH_SOURCE[0]}" )/_in_container_script_init.sh"
 OUT_FILE=$(mktemp)
 
-if [[ ! ${INSTALL_AIRFLOW_VERSION:="current"} =~ 1.10* ]]; then
+if [[ ! ${INSTALL_AIRFLOW_VERSION:=""} =~ 1.10* ]]; then
     echo
     echo "ERROR! You can only install providers package in 1.10. airflow series."
     echo "You have: ${INSTALL_AIRFLOW_VERSION}"