[FIX] Odoo 8.0-10.0: override of config file pg credentials

We tried to remove usage of environment variables to set the connection
parameters to the postgres database but we omit the case when they're
set in the config file

related to a3d207f2d4

Fixes #80

10.0/entrypoint.sh

@@ -7,9 +7,31 @@ set -e
 : ${PORT:=${DB_PORT_5432_TCP_PORT:=5432}}
 : ${USER:=${DB_ENV_POSTGRES_USER:=${POSTGRES_USER:='odoo'}}}
 : ${PASSWORD:=${DB_ENV_POSTGRES_PASSWORD:=${POSTGRES_PASSWORD:='odoo'}}}
-# pass them as arguments to the odoo process
+
+# pass them as arguments to the odoo process if not present in the config file
 DB_ARGS=("--db_user" $USER "--db_password" $PASSWORD "--db_host" $HOST "--db_port" $PORT)
 
+function is_in_config_file() {
+    if [[ ! -f ${ODOO_RC} ]] ; then
+        return 1
+    fi
+
+    while read -r line ; do
+        if [[ ${line} == ${1}* ]] ; then
+            return 0
+        fi
+    done < "${ODOO_RC}"
+    return 1
+}
+
+for i in "${!DB_ARGS[@]}" ; do
+    # postgres credentials begins by `--` when used as odoo argument but it's not the
+    # case when they're set in the config file
+    if  [[ "${DB_ARGS[$i]}" == --* ]] && is_in_config_file "${DB_ARGS[$i]:2}" ; then
+        unset "DB_ARGS[$i]" ; unset "DB_ARGS[$i+1]"
+    fi
+done
+
 case "$1" in
 	-- | odoo)
 		shift