license fixes, version history, minor fixes, dpkgs rpm aware

profile.d/packages.sh

@@ -1,3 +1,38 @@
+# ------------------------------------------------------------------------------
+# Copyright (c) 2013-2022 Geoffray Levasseur <fatalerrors@geoffray-levasseur.org>
+# Protected by the BSD3 license. Please read bellow for details.
+#
+# * Redistribution and use in source and binary forms,
+# * with or without modification, are permitted provided
+# * that the following conditions are met:
+# *
+# *   Redistributions of source code must retain the above
+# *   copyright notice, this list of conditions and the
+# *   following disclaimer.
+# *
+# *   Redistributions in binary form must reproduce the above
+# *   copyright notice, this list of conditions and the following
+# *   disclaimer in the documentation and/or other materials
+# *   provided with the distribution.
+# *
+# *   Neither the name of the copyright holder nor the names
+# *   of any other contributors may be used to endorse or
+# *   promote products derived from this software without
+# *   specific prior written permission.
+# *
+# * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
+# * CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
+# * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+# * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+# * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
+# * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+# * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+# * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+# * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+# * OF SUCH DAMAGE.
+# ------------------------------------------------------------------------------
+
 # ------------------------------------------------------------------------------
 # Look for a package within installed one
 # ------------------------------------------------------------------------------
@@ -14,7 +49,7 @@ dpkgs ()
                 ;;
 
             "-"*)
-                echo "Invalid option, use \"dpkgs --help\" to display usage."
+                disp E "Invalid option, use \"dpkgs --help\" to display usage."
                 echo
                 return 1
                 ;;
@@ -33,10 +68,13 @@ dpkgs ()
         disp E "Please specify a package name, without space, eventually partial." &&
         return 1
 
-    [[ -x /usr/sbin/dpkg ]] &&
-        disp E "dpkg command seems unavialable." &&
-        return 2
-
-    dpkg -l | grep $pkg
+    if [[ $(command -v dpkg >/dev/null 2>&1) ]]; then
+	dpkg -l | grep $pkg
+    elif [[ $(command -v dpkg >/dev/null 2>&1) ]]; then
+	rpm -qa | grep $pkg
+    else
+	disp E "No usable package manager seems unavialable."
+	return 2
+    fi
 }
 export -f dpkgs