fix: dev: prevent duplication of network parameters

Previously, ``_set_db_params`` would be called several times and
parameters would then be concatenated. We didn't want
``_set_db_params`` to overwrite and start from scratch to let
possibility for customization before and after the call.

Here ``set_db_params`` will set a global variable to detect if it was
already launched prior to running content of ``_set_db_params``.

Signed-off-by: Valentin Lab <valentin.lab@kalysto.org>

bin/compose-core

@@ -696,6 +696,15 @@ are_files_locked_in_dir() {
 export -f are_files_locked_in_dir
 
 
+set_db_params() {
+    local docker_ip="$1" docker_network="$2"
+    if [ -z "$DB_PARAMS_LOADED" ]; then
+        DB_PARAMS_LOADED=1
+        _set_db_params "$docker_ip" "$docker_network"
+    fi
+}
+export -f set_db_params
+
 export _PID="$$"
 ensure_db_docker_running () {
     local _STATE_FILE
@@ -706,7 +715,7 @@ ensure_db_docker_running () {
         IFS=: read DOCKER_NETWORK DOCKER_IP <<<"$(cat "$_STATE_FILE")"
 
         debug "Re-using previous docker/connection '$DOCKER_IP'."
-        _set_db_params "$DOCKER_IP" "$DOCKER_NETWORK"
+        set_db_params "$DOCKER_IP" "$DOCKER_NETWORK"
 
         return 0
     fi
@@ -753,7 +762,7 @@ ensure_db_docker_running () {
             docker pull "$DOCKER_BASE_IMAGE"
         fi
 
-        _set_server_db_params
+        _set_server_db_params || return 1
         debug docker network create "$_DB_NAME"
         if ! network_id=$(docker network create "$_DB_NAME"); then
             err "'docker network create $_DB_NAME' failed !"
@@ -788,7 +797,7 @@ ensure_db_docker_running () {
         echo "$docker_ip" > "$_STATE_FILE"
         debug "written '$_STATE_FILE'"
         rm "$state_tmpdir/${_DB_NAME}.working"
-        _set_db_params "$DOCKER_IP" "$DOCKER_NETWORK"
+        set_db_params "$DOCKER_IP" "$DOCKER_NETWORK"
         return 0
     else
         errlvl="$?"
@@ -923,7 +932,7 @@ wait_for_docker_ip() {
         err "internal 'wait_docker_ip' did not return a valid IP. Returned IP is '$DOCKER_IP'."
         return 1
     fi
-    _set_db_params "$DOCKER_IP" "$DOCKER_NETWORK"
+    set_db_params "$DOCKER_IP" "$DOCKER_NETWORK"
     while read-0 port; do
         IFS="/" read port type <<<"$port"
         [ "$type" == "tcp" ] || continue