feat(docker-upgrade): upgrade compose using github repo + only on linux

scripts/rcstack/rcstack

@@ -1076,7 +1076,7 b' rcstack_cli_docker_upgrade_usage() {'
   fi
 
   printf "%s\n" "Usage:"
-  printf "  rcstack cli docker-upgrade\n"
+  printf "  rcstack cli docker-upgrade [OPTIONS]\n"
   printf "  rcstack cli docker-upgrade --help | -h\n"
   echo
 
@@ -1084,6 +1084,12 b' rcstack_cli_docker_upgrade_usage() {'
   if [[ -n $long_usage ]]; then
     printf "%s\n" "Options:"
 
+    # :command.usage_flags
+    # :flag.usage
+    printf "  %s\n" "--compose"
+    printf "    run an upgrade of docker compose to latest version\n"
+    echo
+
     # :command.usage_fixed_flags
     printf "  %s\n" "--help, -h"
     printf "    Show this help\n"
@@ -2386,6 +2392,23 b' slugify() {'
     echo "$slug"
 }
 
+check_os() {
+  echo `uname -s`
+}
+
+check_macos_memory() {
+  echo $(($(memory_pressure | head -n 1 | awk '{ print $4 }') / 1024 / 1024 / 1024))
+}
+
+check_linux_memory() {
+  mem=`free -m --si | awk ' /Mem:/ {print $2}'`
+  if [ "$mem" -ge 990 -a "$mem" -lt 1000 ]; then
+    echo 1
+  else
+    echo `free -g --si | awk ' /Mem:/  {print $2} '`
+  fi
+}
+
 # src/lib/validate_stack_exists.sh
 
 validate_stack_exists() {
@@ -3766,13 +3789,34 b' rcstack_cli_docker_upgrade_command() {'
   # src/cli_docker_upgrade_command.sh
   DOCKER_CONFIG=${DOCKER_CONFIG:-$HOME/.docker}
   DOCKER_CLI_PLUGINS=$DOCKER_CONFIG/cli-plugins
+  upgrade_compose=${args[--compose]}
 
-  if [[ -f "$DOCKER_CLI_PLUGINS/docker-compose" ]]; then
-    echo "found docker-compose at $DOCKER_CLI_PLUGINS, removing it now..."
-    rm -rf "$DOCKER_CLI_PLUGINS/docker-compose"
-  fi
+  curl -fsSL https://get.docker.com -o install-docker.sh
+  # sh install-docker.sh --version 23.0
+  sh install-docker.sh
+  rm -rf install-docker.sh
 
-  curl https://get.docker.com/ | sh
+  if [[ $upgrade_compose ]]; then
+
+    os_type=$(check_os)
+    if [ "$os_type" != "Linux" ]; then
+      echo "$(red compose upgrade is only available for Linux architecture, got \"$os_type\" instead)"
+      exit
+    fi
+
+    # just ensure we have this dir
+    mkdir -p "$DOCKER_CLI_PLUGINS"
+
+    if [[ -f "$DOCKER_CLI_PLUGINS/docker-compose" ]]; then
+      echo "found docker-compose at $DOCKER_CLI_PLUGINS, removing it now..."
+      rm -rf "$DOCKER_CLI_PLUGINS/docker-compose"
+    fi
+
+    NEW_COMPOSE_VERSION=$(curl --silent https://api.github.com/repos/docker/compose/releases/latest | grep -Po '"tag_name": "\K.*\d')
+    echo "new compose version $NEW_COMPOSE_VERSION to be installed in $DOCKER_CLI_PLUGINS"
+    curl -fsSL https://github.com/docker/compose/releases/download/$NEW_COMPOSE_VERSION/docker-compose-linux-x86_64 -o $DOCKER_CLI_PLUGINS/docker-compose
+    chmod +x $DOCKER_CLI_PLUGINS/docker-compose
+  fi
 
 }
 
@@ -6307,6 +6351,13 b' rcstack_cli_docker_upgrade_parse_requirements() {'
   while [[ $# -gt 0 ]]; do
     key="$1"
     case "$key" in
+      # :flag.case
+      --compose)
+
+        # :flag.case_no_arg
+        args['--compose']=1
+        shift
+        ;;
 
       -?*)
         printf "invalid option: %s\n" "$key" >&2