Add argument to only show version number

README.md

@@ -29,7 +29,10 @@ PowerJoular supports RAPL package domain (core, including integrated graphics, a
 
 On Raspberry Pi and Asus Tinker Board, PowerJoular uses its own research-based empirical regression models to estimate the power consumption of the ARM processor.
 
-We currently support the following Raspberry Pi models and Asus Tinker Board:
+The supported list of Raspberry Pi and Asus Tinker Board models are listed below.
+We support all revisions of each model lineup. However, the model is generated and trained on a specific revision (listed between brackets), and the accuracy is best on this particular revision.
+
+We currently support the following Raspberry Pi and Asus Tinker Board models:
 - Model Zero W (rev 1.1), for 32 bits OS
 - Model 1 B (rev 2), for 32 bits OS
 - Model 1 B+ (rev 1.2), for 32 bits OS
@@ -160,4 +163,4 @@ PowerJoular is licensed under the GNU GPL 3 license only (GPL-3.0-only).
 Copyright (c) 2020-2023, Adel Noureddine, Université de Pau et des Pays de l'Adour.
 All rights reserved. This program and the accompanying materials are made available under the terms of the GNU General Public License v3.0 only (GPL-3.0-only) which accompanies this distribution, and is available at: https://www.gnu.org/licenses/gpl-3.0.en.html
 
-Author : Adel Noureddine
+Author : Adel Noureddine

src/help_info.adb

@@ -15,7 +15,7 @@ with Ada.Characters.Latin_1; use Ada.Characters.Latin_1;
 package body Help_Info is
 
     procedure Show_Help is
-    Version_Number : constant String := "0.6.2";
+    Version_Number : constant String := "0.7.0";
     begin
         Put_Line (ESC & "[93m" & "~~ PowerJoular ~~" & ESC & "[0m");
         Put_Line ("Version " & Version_Number);
@@ -51,4 +51,10 @@ package body Help_Info is
         Put_Line ("Copyright (c) 2020-2023, Adel Noureddine. PowerJoular is licensed under the GNU GPL 3 license only (GPL-3.0-only)");
     end;
 
+    procedure Show_Version is
+    Version_Number : constant String := "0.7.0";
+    begin
+        Put_Line (Version_Number);
+    end;
+
 end Help_Info;

src/help_info.ads

@@ -14,4 +14,7 @@ package Help_Info is
     -- Print help information on the terminal
     procedure Show_Help;
 
+    -- Print version number
+    procedure Show_Version;
+
 end Help_Info;

src/powerjoular.adb

@@ -115,10 +115,13 @@ begin
 
     -- Loop over command line options
     loop
-        case Getopt ("h t f: p: a: o: u l") is
+        case Getopt ("h v t f: p: a: o: u l") is
         when 'h' => -- Show help
             Show_Help;
             return;
+        when 'v' => -- Show help
+            Show_Version;
+            return;
         when 't' => -- Show power data on terminal
             Show_Terminal := True;
         when 'p' => -- Monitor a particular PID