release 4.2.0

profile.d/packages.sh

@@ -46,8 +46,15 @@ _profile_load_helpers "${BASH_SOURCE[0]}"
 # checking available binaries in a fixed priority order.
 # Echoes one of: apt dnf yum zypper pacman apk portage xbps nix
 # Returns 1 if no known package manager could be identified.
+# shellcheck disable=SC2120 # only --help is a possible argument
 get_pkgmgr()
 {
+    if [[ "${1:-}" == -h || "${1:-}" == --help ]]; then
+        printf "get_pkgmgr: print the package manager of the running distribution.\n"
+        printf "Usage: get_pkgmgr\n"
+        printf "Prints one of: apt dnf yum zypper pacman apk portage xbps nix (status 1 if unknown).\n"
+        return 0
+    fi
     local distro_id="" distro_like=""
     if [[ -r /etc/os-release ]]; then
         # shellcheck disable=SC1091