rccontrol: added self-update

scripts/rccontrol/rccontrol

@@ -155,6 +155,12 b' rccontrol_self_update_usage() {'
 
     # :command.usage_flags
     # :flag.usage
+    echo "  --revision REVISION"
+    printf "    revision to fetch new installer.\n"
+    printf "    Default: master\n"
+    echo
+
+    # :flag.usage
     echo "  --auth-token AUTH_TOKEN"
     printf "    Optionally specify AUTH TOKEN to obtain sources\n"
     echo
@@ -1298,11 +1304,19 b' rccontrol_self_update_command() {'
   # src/self_update_command.sh
   check_bootstrap
 
-  echo "# this file is located in 'src/self_update_command.sh'"
-  echo "# code for 'rccontrol self-update' goes here"
-  echo "# you can edit it freely and regenerate (it will not be overwritten)"
-  inspect_args
+  AUTH_TOKEN=${args[--auth-token]}
+  SERVER_URL=${args[--server-url]}
+  revision=${args[--revision]}
+
+  FETCH_FROM=$SERVER_URL/rhodecode-enterprise-docker/raw/master/scripts/rccontrol/rccontrol
+  TARGET=$PWD/scripts/rccontrol/rccontrol
 
+  echo "$(green Donwloading new rccontrol script from $FETCH_FROM)"
+  curl --header "X-Rc-Auth-Token: $AUTH_TOKEN" -o $TARGET -L $FETCH_FROM
+  chmod +x $TARGET
+
+  echo "$(green Done ! File saved in $TARGET)"
+  exit
 }
 
 # :command.function
@@ -2289,6 +2303,21 b' rccontrol_self_update_parse_requirements() {'
     key="$1"
     case "$key" in
       # :flag.case
+      --revision)
+
+        # :flag.case_arg
+        if [[ -n ${2+x} ]]; then
+
+          args[--revision]="$2"
+          shift
+          shift
+        else
+          printf "%s\n" "--revision requires an argument: --revision REVISION" >&2
+          exit 1
+        fi
+        ;;
+
+      # :flag.case
       --auth-token)
 
         # :flag.case_arg
@@ -2335,6 +2364,7 b' rccontrol_self_update_parse_requirements() {'
   done
 
   # :command.default_assignments
+  [[ -n ${args[--revision]:-} ]] || args[--revision]="master"
   [[ -n ${args[--server-url]:-} ]] || args[--server-url]="https://code.rhodecode.com"
 
 }